WO2015125515A1 - Illumination device and illumination method - Google Patents

Illumination device and illumination method Download PDF

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Publication number
WO2015125515A1
WO2015125515A1 PCT/JP2015/050734 JP2015050734W WO2015125515A1 WO 2015125515 A1 WO2015125515 A1 WO 2015125515A1 JP 2015050734 W JP2015050734 W JP 2015050734W WO 2015125515 A1 WO2015125515 A1 WO 2015125515A1
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WIPO (PCT)
Prior art keywords
region
saturation
low
area
blue
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PCT/JP2015/050734
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French (fr)
Japanese (ja)
Inventor
由紀 直井
俊介 野村
佳恵 清水
泰一郎 石田
Original Assignee
コニカミノルタ株式会社
国立大学法人京都大学
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Application filed by コニカミノルタ株式会社, 国立大学法人京都大学 filed Critical コニカミノルタ株式会社
Priority to JP2016503994A priority Critical patent/JP6466404B2/en
Publication of WO2015125515A1 publication Critical patent/WO2015125515A1/en

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H05B45/24—Controlling the colour of the light using electrical feedback from LEDs or from LED modules

Definitions

  • the present invention relates to an illumination device and an illumination method that are preferably used for so-called gradation illumination.
  • This gradation illumination can be realized by, for example, the illumination device disclosed in Patent Document 1.
  • the illuminating device disclosed in Patent Document 1 is an illuminating device including a light source composed of a light emitting diode or the like, and a plurality of light emitted from the light source is reproduced in order to reproduce a natural light environment within a viewing angle range.
  • An irradiation area is formed, and variable means for changing the size of at least one of the plurality of irradiation areas is provided.
  • the plurality of irradiation areas include an intermediate area that partially overlaps the intermediate area. The light of each said irradiation area
  • the illumination device disclosed in Patent Document 1 generates illumination light for the purpose of reproducing a natural light environment and improves the relaxation effect. Therefore, the lighting device disclosed in Patent Document 1 can generate only natural light and can only give a relaxing effect to a person. For this reason, the illuminating device disclosed by the said patent document 1 is not comprised so that various psychological effects can be given to the person who exists in the environment of the illumination light.
  • the present invention has been made in view of the above-described circumstances, and an object thereof is to provide an illumination device and an illumination method capable of suitably giving a predetermined psychological effect to a person in an environment of illumination light. It is.
  • the illumination device of the present invention includes first and second LED light sources that can emit light of a plurality of colors, and a part of the first light emitted from the first LED light source and the second light emitted from the second LED light source.
  • the first and second LED light sources are controlled so as to emit the first and second lights with different colors from each other and the light source unit that emits the first and second lights so that a part of the LED overlaps with each other in the radiation angle region
  • a chromaticity region in which the chromaticity region of the light that is the maximum saturation of the first and second lights irradiated to the radiation angle region gives a preset predetermined psychological effect.
  • the lighting device and the lighting method according to the present invention can suitably give a predetermined psychological effect to a person who is in an environment of illumination light.
  • FIG. 1 It is a partial cross section figure which shows the structure of the illuminating device of a said 2nd aspect. It is a figure for demonstrating an example at the time of applying the illuminating device of a said 2nd aspect to a living room. It is a perspective view which shows the external appearance of the illuminating device of the 3rd aspect in embodiment. It is a side view which shows the structure of the illuminating device of a said 3rd aspect.
  • FIG. 1 is a block diagram illustrating an electrical configuration of the illumination device according to the first aspect of the embodiment.
  • FIG. 2 is a circuit diagram showing an electrical configuration of a light source unit in the illumination device of the first aspect.
  • FIG. 3 is a perspective view showing an appearance of the illumination device of the first aspect.
  • FIG. 4 is a cross-sectional view showing a structural configuration of a light source unit in the illumination device of the first aspect.
  • FIG. 5 is a plan view showing a configuration of an LED light source of the light source unit.
  • FIG. 6 is a diagram for explaining an example when the lighting device of the first aspect is applied to a living room.
  • the illumination device LD in the embodiment is a device for performing gradation illumination that gives a desired psychological effect to a person in an illumination light environment.
  • the illumination devices LDa to LDc of the first to third aspects will be described below.
  • the illumination device LDa of the first aspect includes a light source unit 1 and a control unit 2.
  • the input unit 3 the power source The unit 4 is further provided.
  • the power supply unit 4 is connected to the external power supply 5, the light source unit 1, the control unit 2, and the input unit 3, and receives power supply from the external power supply 5 such as a commercial power supply. It is a circuit that generates predetermined power for operating the input unit 3.
  • the power source unit 4 includes a rectifier circuit that rectifies commercial AC power fed from an external power source into DC power, and a smoothing circuit that smoothes the output of the rectifier circuit.
  • a voltage conversion circuit (converter) that converts voltage values corresponding to the operating voltages of the control unit 2 and the input unit is provided.
  • the DC power generated by the power supply unit 4 is supplied to the light source unit 1, the control unit 2, and the input unit 3.
  • the input unit 3 is connected to the control unit 2 and is a circuit for inputting a predetermined instruction or the like to the control unit 2 of the illumination device LDa.
  • the input unit 3 includes, for example, a plurality of switch elements, and each switch element includes a power switch element for turning on and off the lighting device LDa and 1 for performing gradation illumination that gives a predetermined psychological effect.
  • a plurality of selection switch elements and the like are included.
  • One of the selection switch elements is assigned, for example, an instruction to cause the illumination device LDa to perform gradation illumination that gives a comfortable feeling.
  • the instruction to be executed is assigned.
  • the input unit 3 may include a power switch element and a touch panel, and may be configured such that predetermined input content is input using the touch panel.
  • the touch panel is a position input for detecting and inputting a display device such as an LCD (Liquid Crystal Display) and an organic EL display and an operation position such as a resistance film method or a capacitance method attached to the display surface of the display device.
  • a display device such as an LCD (Liquid Crystal Display) and an organic EL display
  • an operation position such as a resistance film method or a capacitance method attached to the display surface of the display device.
  • the input unit 3 includes a power switch element and a communication circuit that communicates with a so-called smartphone or tablet computer, and performs predetermined input using predetermined application software installed in the smartphone or tablet computer.
  • the contents may be configured to be input via the smartphone, the tablet computer, or the like.
  • a color selection method for example, a first color selection method in which RGB values in the RGB color system of the CIE (International Lighting Commission) are specified to specify a color mixing ratio, and for example, hue, saturation, and A second color selection method for designating lightness and the like, and simultaneously designating a color mixture ratio and brightness, or a third color selection method for designating a color by selecting from a color table or image as a sample, for example Etc. can be used.
  • the color can be specified and input using a color bar displayed on the display device.
  • the color selection method may be a fourth color selection method in which a color table, an image, or the like as a sample is displayed, and the color is automatically selected and designated.
  • the light source unit 1 includes first and second LED light sources 10-1 and 10-2 that can emit light of a plurality of colors. A part of the first light emitted from the first LED light source 10-1 and the second LED The first light and the second light are emitted so that a part of the second light emitted from the light source 10-2 overlaps with each other in the radiation angle region. In such a light source unit 1, a part of the first light and a part of the second light are overlapped with each other in the radiation angle region.
  • the surface to be illuminated can be illuminated with gradation illumination in which the brightness and color are continuously changed to reach the hue B region by the second light through the intermediate region.
  • the LED light source 10 includes a day white LED 11 that emits day white light, a light bulb color LED 12 that emits light bulb color light, and an RGB LED 13.
  • the LED light source 10 may be configured to include each of the daylight white LEDs 11, the light bulb color LEDs 12, and the RGB LEDs 13 one by one. However, in this embodiment, a plurality of daylight white LEDs 11 are used to perform gradation illumination over a wider radiation angle region. A plurality of light bulb color LEDs 12 and a plurality of RGB LEDs 13 are provided. As shown in FIG.
  • the plurality of daylight white LEDs 11, the plurality of light bulb color LEDs 12, and the plurality of RGB LEDs 13 are arranged along the one direction on a plate-like LED substrate 14 having a wiring pattern and extending in one direction. It is installed side by side.
  • the plurality of daylight white LEDs 11, the plurality of light bulb color LEDs 12 and the plurality of RGB LEDs 13 are arranged in parallel on the LED substrate 14, for example, with the daylight white LED 11, RGBLED 13, light bulb color LED 12 and RGBLED 13 as one set.
  • the lunch white LED 11 includes, for example, a B light LED element and a yellow phosphor that emits a complementary yellow color when excited by a part of the B light emitted from the B light LED.
  • daylight white light is emitted.
  • the daylight white LED 11 includes a violet LED element that emits near-ultraviolet light or violet light, a red phosphor that emits red, green, and blue when excited by part of the light emitted from the violet light LED, and green fluorescence. Body and blue phosphors, and adjusting them to adjust the color temperature to about 5000 K, thereby emitting daylight white light.
  • the daylight white LED 11 is supplied with DC power from the power supply unit 4, and the amount of daylight white light is adjusted by controlling a current value by a first current control circuit 23-1 to be described later of the control unit 2.
  • the light bulb color LED 12 includes, for example, a B light LED element and a yellow phosphor, and adjusts the color temperature to about 3000K to radiate light bulb color light. .
  • the light bulb color LED 12 includes a purple LED element and red phosphor, green phosphor, and blue phosphor, and adjusts the color temperature to about 3000K by adjusting them to produce light bulb color light. It radiates.
  • the bulb color LED 12 is supplied with DC power from the power supply unit 4, and the light amount of the bulb color light is adjusted by controlling a current value by a second current control circuit 23-2 described later of the control unit 2.
  • the RGBLED 13 includes, for example, an R light LED element, a G light LED element, and a B light LED element, and adjusts these to emit each color light. That is, the RGBLED 13 is an LED light source that can emit light of a plurality of colors.
  • the R light LED element, the G light LED element, and the B light LED element of the RGBLED 13 are individually supplied with direct current power from the power supply unit 4, and each current value by a third current control circuit 23-3 described later of the control unit 2 The amount of light of each color is adjusted by individual control.
  • the light source unit 1 includes a main body 17a made of, for example, aluminum having a substantially prismatic shape elongated in one direction.
  • a long recess 171a is formed along the one direction formed from one ridge line toward the inside.
  • the recess 171a branches into two in the middle from the one ridge line toward the inside, and includes two first and second recesses 171a-1 and 171a-2.
  • Both side surfaces of the first recess 171a-1 are curved surfaces that swell outward from the center of the first recess 171a-1, and have a slight light scattering property within a range that does not hinder the desired gradation illumination.
  • the first LED substrate 14-1 may be disposed on the first bottom surface of the first LED substrate 14-1 via, for example, an aluminum heat sink 15-1.
  • the plurality of daylight white LEDs 11-1, the plurality of light bulb color LEDs 12-1, and the plurality of RGB LEDs 13-1 are arranged in parallel along the one direction. That is, the first LED light source 10-1 is disposed on the first bottom surface of the first recess 171a-1.
  • both side surfaces of the second recess 171a-2 each have a curved shape that swells outward from the center of the second recess 171a-2, and is slightly light as long as the desired gradation illumination is not hindered.
  • the second LED substrate 14-2 may be disposed on the second bottom surface of the second LED substrate 14-2 via, for example, an aluminum heat sink 15-2.
  • the plurality of daylight white LEDs 11-2, the plurality of light bulb color LEDs 12-2, and the plurality of RGB LEDs 13-2 are arranged in parallel along the one direction. That is, the second LED light source 10-2 is disposed on the second bottom surface of the second recess 171a-2.
  • the first LED light source 10-1 and the second LED light source 10-2 are arranged so that the first optical axis AX1 of the first LED light source 10-1 and the second optical axis AX2 of the second LED light source 10-2 intersect each other.
  • the first and second recesses 171a-1 and 171a-2 are disposed respectively.
  • the first bottom surface of the first recess 171a-1 and the second bottom surface of the second recess 171a-2 are formed so as to intersect each other at their extended surfaces.
  • the first optical axis AX1 of the first LED light source 10-1 is a radiation surface of each of the plurality of daylight white LEDs 11-1, the plurality of bulb-color LEDs 12-1 and the plurality of RGB LEDs 13-1 arranged in parallel along the one direction ( The first normal direction of the first plane formed by the light emitting surface.
  • the second optical axis AX1 of the second LED light source 10-2 is a radiation surface of each of the plurality of daylight white LEDs 11-2, the plurality of light bulb color LEDs 12-2, and the plurality of RGB LEDs 13-2 arranged in parallel along the one direction ( This is the second normal direction of the second plane formed by the light emitting surface.
  • the first optical axis AX1 and the second optical axis AX2 intersect each other, so that the light flux from the first LED light source 10-1 and the second LED light source 10 are located at the position of the cover member 16a that is the light emission window of the illumination device.
  • the area of the light emission window that can overlap the light flux from -2 can be reduced. That is, the entire lighting device can be configured compactly.
  • a radiation angle region that is separated from the light source unit 1 by a predetermined distance a part of the first light and a part of the second light overlap each other, and gradation illumination is realized on the irradiated surface.
  • Each point on the irradiated surface may be equidistant from the light source unit 1, and does not necessarily have to be equidistant from the light source unit 1, and the distance from the light source unit 1 may change.
  • a pair of grooves are formed along the one direction in the vicinity of the opening of the recess 171a in the main body 17a, and each of the pair of grooves has a long curved plate shape along the one direction. Both ends of the cover member 16a are fitted, and the opening of the recess 171a is closed by the cover member 16a.
  • the cover member 16a is formed of a material having translucency for the first light emitted from the first LED light source 10-1 and the second light emitted from the second LED light source 10-2. Note that the cover member 16a may have a slight light scattering property as long as desired gradation illumination is not hindered.
  • the light source unit 1 may be configured to include only the RGBLED 13
  • the light source unit 1 may be configured to include only the RGBLED 13 by further including the daylight white LED 11 and the light bulb color LED 12 as in the present embodiment.
  • Color rendering can be improved.
  • the illumination device LDa of the present embodiment is more efficient when the gradation illumination desired to be radiated by the illumination device LDa contains a lot of day white components of the day white LED 11 or a lot of bulb color components of the bulb color LED 12. You can get color and brightness well.
  • the control unit 2 controls the first and second LED light sources 10-1 and 10-2 so as to emit the first and second lights with mutually different colors. Then, the control unit 2 controls the first and second LED light sources 10-1 and 10-2 so that the first and second lights irradiated to the radiation angle region are included in a predetermined condition.
  • the predetermined condition will be described later.
  • the control unit 2 includes, for example, a CPU (Central Processing Unit) 21, a memory circuit 22, and a current control circuit 23.
  • the current control circuit 23 is a day white LED 11-1, 11-2, light bulb color LED 12-1, 12-2 and RGB LED 13-1, 13- in the first and second LED light sources 10-1, 10-2 according to the control of the CPU 21.
  • 2 is a circuit for controlling each current flowing in each of the two.
  • the current control circuit 23 includes, for example, a first current control circuit 23-1 that controls each current flowing in each of the daylight white LEDs 11-1 and 11-2, and each current that flows in each of the light bulb color LEDs 12-1 and 12-2.
  • a second current control circuit 23-2 for controlling, and a third current control circuit 23-3 for controlling each current flowing in each of the RGB LEDs 13-1, 13-2 are provided.
  • Each of the first to third current control circuits 23-1 to 23-3 includes, for example, a variable current source controlled by the CPU 21.
  • the current control circuit 23 may vary the current by PWM (Pulse Width Modulation) control.
  • the memory circuit 22 is a circuit that stores various predetermined programs and various predetermined data.
  • the various predetermined programs include, for example, an illumination control program for performing gradation illumination so as to give a predetermined psychological effect.
  • the various kinds of predetermined data include data necessary for execution of the predetermined program, such as data representing a color region that gives the psychological effect for each psychological effect by coordinate values in accordance with the CIE 1976 u′v ′ chromaticity diagram. Etc. are included.
  • Such a memory circuit 22 includes, for example, a ROM (Read Only Memory) that is a nonvolatile storage element, an EEPROM (Electrically Erasable Programmable Read Only Memory) that is a rewritable nonvolatile storage element, and the like.
  • the memory circuit 22 includes a RAM (Random Access Memory) that serves as a working memory of the CPU that stores data generated during the execution of the predetermined program.
  • the CPU 21 is a circuit that performs illumination control for gradation illumination so as to give a predetermined psychological effect as described later by reading and executing the predetermined program.
  • the lighting device LDa of the first aspect having such a configuration is a horizontal projection type (bar type) device that performs gradation illumination using indoor surfaces such as a ceiling surface, a wall surface, and a floor surface as an irradiated surface.
  • a horizontal projection type (bar type) device that performs gradation illumination using indoor surfaces such as a ceiling surface, a wall surface, and a floor surface as an irradiated surface.
  • the plate-shaped long push-up that is long in one direction provided on the wall at a predetermined height from the floor surface is A lighting device LDa of one mode is arranged and used.
  • FIG. 7 is a flowchart showing the operation of the illumination device of the first aspect.
  • FIG. 8 is a diagram for explaining a method of converting a designated color outside the range into the range.
  • the user turns on the power switch element of the lighting device LDa to operate the lighting device LDa. Then, the user inputs a light emission color from the input unit 3 in order to perform gradation illumination. For example, any one of the first to third color selection methods described above is used to input the emission color. Thus, the emission color is input via the input unit 3 (S1).
  • the CPU 21 When receiving the input of the emission color from the user via the input unit 3, the CPU 21 converts the input emission color into a u'v 'coordinate value in the CIE 1976 u'v' chromaticity diagram (S2). For example, when the emission color is input as R value, G value, and B value in the CIE RGB color system, the R value, G value, and B value in the RGB color system are converted to u′v by a known conversion formula. Converted to 'coordinate system u' and v 'values.
  • the emission color is input as an X value, a Y value, and a Z value of the CIE XYZ color system
  • the X value, the Y value, and the Z value of the XYZ color system are converted to u ′ by a known conversion formula. It is converted into u ′ value and v ′ value in the v ′ coordinate system.
  • the colors of the u ′ value and the v ′ value that have undergone the coordinate conversion are within a color range (condition) that gives a predetermined psychological effect. Is determined based on data representing a color range (condition) that gives the predetermined psychological effect stored in the memory circuit 22 (S3).
  • the range (condition) is set such that the first and second lights are described later.
  • the chromaticity range of light having the maximum saturation of (u ′, v ′) is the coordinate point R_4 (0.440, 0.506), R-OR — 4 (0.419).
  • the CPU 21 executes the process S6, while the determination As a result, when the color by the process S2 is not within the color range (condition) that gives the predetermined psychological effect (No), that is, the color range by which the color by the process S2 gives the predetermined psychological effect When it is outside (No), the CPU 21 executes the process S4.
  • the CPU 21 determines whether or not to convert the color (the light emission color input by the user) obtained in the process S2 into a color range that gives the predetermined psychological effect.
  • the illumination device LDa further includes a display unit that performs a display for inquiring the user whether or not to convert (the input unit 3 may be a display unit of the smartphone or tablet computer if the input unit 3 includes a communication circuit). Further, whether the conversion is permitted or not is input by the user via the input unit 3, and the determination may be executed according to this input.
  • the next process S5 is executed, and the process
  • the illuminating device LDa may be configured to automatically convert the color according to S2 (the light emission color input by the user) into the color range that gives the predetermined psychological effect.
  • a display unit is further provided in the illumination device LDa, and a warning that the color (the emission color input by the user) by the processing S2 is out of the color range (condition) that gives the predetermined psychological effect is issued. It may be displayed on the display unit.
  • the CPU 21 converts the color (the light emission color input by the user) obtained in the process S2 so as to be within the color range (condition) that gives the predetermined psychological effect.
  • the color obtained by the process S2 (the light emission color input by the user) is a point represented by the u′v ′ coordinate value of the color obtained by the process S2 (specified by the user).
  • Color line) and a line segment connecting the center point (white point) of the color range giving the predetermined psychological effect intersects with the boundary of the color range giving the predetermined psychological effect (conversion color point) Converted to color.
  • processing S6 is executed following processing S5.
  • the first and second LED light sources 10-1 and 10-2 emit light in the color obtained by the process S2 (the light emission color input by the user). As described above, the current control is performed on the first and second LED light sources 10-1 and 10-2 via the current control circuit 23.
  • the first and second LED light sources 10-1 and 10-2 emit light with the colors of the u ′ value and the v ′ value converted in the process S5.
  • the first and second LED light sources 10-1 and 10-2 are current-controlled through the current control circuit 23.
  • the emission color is changed. Can radiate.
  • the mixing ratio of the three colors of the R value, the G value, and the B value is appropriately adjusted according to the ratio of the daylight white light and the light bulb color light.
  • the first and second LED light sources 10-1 and 10-2 respectively emit the first and second lights. For example, as shown in FIG. 6, the ceiling surface of the surface to be illuminated with the first and second lights. Gradient lighting.
  • the first and second lights emitted from the first and second LED light sources 10-1 and 10-2 in different colors are Since each part is emitted so as to overlap each other in the radiation angle region, the illumination device LDa in this embodiment and the illumination method mounted thereon can perform gradation illumination.
  • the first and second lights are included in a chromaticity region that gives a predetermined psychological effect to be described later. Gradient illumination can be achieved with the light provided. Therefore, the illumination device LDa and the illumination method mounted thereon according to the present embodiment can suitably give a predetermined psychological effect to a person who is in an environment of illumination light.
  • FIG. 9 is a diagram for explaining a state in the laboratory.
  • 9A is a plan view and FIG. 9B is a side view.
  • FIG. 10 is a diagram showing the range of color light of the illumination device LD used in the experiment on the CIE 1976 u′v ′ chromaticity diagram and the color light conditions used in the experiment.
  • the boundary of the color light range of the illumination device LD used in the experiment is indicated by a broken line, and the color light condition used in the experiment is indicated by a solid line.
  • FIG. 11 is a diagram illustrating an experimental result regarding a psychological effect of being accepted.
  • FIG. 12 is a diagram illustrating an experimental result regarding a psychological effect of comfort.
  • FIG. 13 is a diagram illustrating an experimental result regarding a psychological effect of a feeling of relaxation.
  • FIG. 14 is a diagram illustrating an experimental result regarding a psychological effect of a refreshing feeling.
  • FIG. 15 is a diagram illustrating an experimental result regarding a psychological effect that the user can concentrate.
  • FIG. 16 is a diagram illustrating an experimental result regarding a psychological effect of drowsiness.
  • FIG. 17 is a diagram illustrating an experimental result regarding a psychological effect of waking up sleepiness.
  • FIG. 18 is a diagram for illustrating each of the white region, the low saturation blue region, and the high saturation purple region in the u′v ′ chromaticity diagram.
  • the experimental environment is in the experimental booth shown in FIG.
  • the size of this experimental booth is 3000 mm wide x 3000 mm deep x 2400 mm high, and a typical residential private room is assumed.
  • a low table LT manufactured by Nitori Co., Ltd./color: white: width 900 mm ⁇ depth 550 mm ⁇ height 420 mm / material: MDF, MELAMINE
  • an illumination device LD is installed thereon. Yes.
  • This illumination device LD was made not to touch the eyes of the subject SP by a blind member made of white styrene board (width 300 mm ⁇ depth 200 mm ⁇ height 300 mm).
  • the subject SP sits on the office chair OC placed near the rear wall in the experimental booth and observes the entire experimental booth. During the experiment, the light was turned off to 0 lux to avoid the effects of lighting in the experiment booth.
  • the illuminating device LD has substantially the same structure as the illuminating device LDa of the first aspect described above, and is a device that can emit the first and second lights in different colors in the forward direction and the upward direction.
  • This illuminating device LD can designate R value, G value, and B value between 0 and 255 on the computer, respectively, and can emit the first and second lights in arbitrary colors in the forward direction and the upward direction, respectively. is there.
  • the operation of the illumination device LD during the experiment was performed by a computer arranged outside the experiment booth.
  • the hue conditions for the experimental conditions the basic colors red, blue, green, yellow and intermediate colors orange, purple, blue green, and white were used in total.
  • the saturation condition two conditions of a high saturation condition and a low saturation condition were prepared for each of the seven chromatic colors.
  • the high saturation condition is the highest purity color that the lighting device LD can present for each hue.
  • the degree of saturation is high, and it was apparent that there were several types of light colors that seemed inappropriate to project into the indoor space of the experiment booth. It was dropped. As a result, it was concluded that red was acceptable up to 70% purity, and blue and green were concluded up to 90% purity. For this reason, the purity of these three colors was reduced. The other colors are 100% pure.
  • the low saturation condition was a position where the purity from the high saturation condition of each hue to white was 50%.
  • FIG. 10 shows the range of light colors that can be emitted from the illumination device LD used in the experiment and all 15 colors used in the experiment on the u′v ′ chromaticity coordinates.
  • Table 1 shows the u'v 'chromaticity value of each color. That is, in the high saturation condition, purple (high purple) is (0.3174, 0.2906), red (high red) is (0.4396, 0.5055), and orange (high orange) is , (0.3975, 0.5370), yellow (high yellow) is (0.2372, 0.5572), and green (high green) is (0.0845, 0.5681). , Blue green (high blue green) is (0.1116, 0.3981), and blue (high blue) is (0.1726, 0.1690).
  • purple (low purple) is (0.2640, 0.3821)
  • red (low red) is (0.3251, 0.4896)
  • orange (low orange) is (0.3040, 0.5053)
  • yellow (low yellow) is (0.2239, 0.5154)
  • green (low green) is (0.1475, 0.5209)
  • Blue green (low blue green) is (0.1611, 0.4359) and blue (low blue) is (0.1915, 0.3214).
  • Achromatic white (white) is (0.2104, 0.4735).
  • the white is a representative of a white region described later
  • the low blue is a representative of a low saturation blue region described below
  • the low blue green is a representative of a low saturation blue-green region described below
  • Low green is a representative of a low saturation green region described later
  • the low yellow is a representative of a low saturation yellow region described later
  • the low orange is a representative of a low saturation orange region described below
  • the low red is a representative of a low chroma red area described later
  • the low purple is a representative of a low chroma purple area described below
  • the high blue is a representative of a high chroma blue area described below
  • High blue-green is a representative of a high-saturation blue-green region described later
  • the high-green is a representative of a high-saturation green region described later
  • the high yellow is a representative of a high-saturation yellow region described later
  • the high orange is The high-saturation orange region, which will be described
  • the illuminance at the maximum output of each color was based on 1600 lux of high purple, and the illuminance of each color was adjusted to 1600 lux. The illuminance was measured at a vertical distance of 10 cm from the light emitting surface. However, since high blue can output only about 500 lux at the maximum, only high blue was set as the maximum output.
  • the evaluation items are the following 19 sets of adjective pairs and one optional answer. These adjective pairs included in addition to the general adjective pairs used in previous studies, as well as adjective pairs that are directly linked to actual uses and scenes.
  • the evaluation method for each of items 1 to 19 uses the Semantic differential method (SD method), and subjects evaluated it in seven stages, with an evaluation value of 0 to “None”, with an evaluation value of -3 to +3. .
  • SD method Semantic differential method
  • the twentieth item when there is something that is imaged or words when looking at the presented lighting space, it was filled in. No. 1; Accepted-Unacceptable No. 2; Like-Dislike No. 3; Busy-Quiet No. 4; Light-Heavy No. 5; Dark-Bright No. 6; Relaxed-Tension No.
  • Neat-No. 10 Can concentrate;-Annoyed No. 11; Anxiety-No. 12; Future # 14; Natural-Artificial # 15; Comfortable-Unpleasant # 16; Warm-Cold # 17; innovative-Ordinary # 18; Narrow-Wide # 19; Stupid-Stupid-Stupid # 20; Something you can imagine (optional answer)
  • Subject SP is a total of 6 people including 3 Japanese men and 3 women in their 20s.
  • the experimental procedure is as follows.
  • the subject SP is provided with an instruction sheet having an experimental procedure column for explaining the next experimental procedure and an entry column for entering the evaluation value of each item to explain the experiment.
  • the subject SP enters the non-illuminated experimental booth and waits for one minute with his eyes closed.
  • the subject SP observes the illumination space presented in the experiment booth for 30 seconds, and after the experimenter's signal, writes the evaluation of each item on the evaluation sheet.
  • the subject SP responds to the experimenter, and the experimenter turns off the illumination light.
  • the subject SP closes his eyes and stands by with his eyes closed, and after 10 seconds, observes the illumination space presented in the experimental booth under the following illumination conditions.
  • the same procedure is repeated for all illumination conditions.
  • the experiment was performed by dividing 210 lighting conditions into three sets as described above, and the required time per set was about 2 hours. Up to three people were tested simultaneously per experiment.
  • the experimental results are shown in a bubble chart in FIGS.
  • the horizontal direction indicates the hue of the first light emitted in the forward direction (the floor side on the wall surface of the radiation angle region), and the vertical direction indicates the upward direction (the ceiling on the wall surface of the radiation angle region).
  • the hue of the second light emitted on the side) is shown, and at the intersection, the evaluation value when the first light of the horizontal hue and the second light of the vertical hue are emitted into the experimental booth is ⁇ Is shown in the size of ⁇ represents a positive value (+1 to +3), and ⁇ represents a negative value ( ⁇ 1 to ⁇ 3).
  • the largest circle is +3, and the largest circle is -3.
  • the evaluation value is an average value of six subjects.
  • FIG. 11 shows the experimental results for the first evaluation item "accepted-not accepted”.
  • the evaluation value when accepted, the evaluation value becomes a positive evaluation value, and the evaluation value is represented by ⁇ .
  • the evaluation value becomes a negative evaluation value, and the evaluation value is represented by ⁇ .
  • FIG. 12 shows the experimental results regarding the 15th evaluation item “No. 15; comfortable-uncomfortable”.
  • FIG. 12 when comfortable, the evaluation value is positive, and the evaluation value is represented by ⁇ , and when uncomfortable, the evaluation value is negative, and the evaluation value is represented by ⁇ .
  • FIG. 13 shows the experimental results relating to the sixth evaluation item “Relaxed-Tensioned”. In FIG.
  • FIG. 14 shows the experimental results relating to the ninth evaluation item “Neat-Don Yori”. In FIG. 14, when it is clear, it becomes a positive evaluation value, and the evaluation value is represented by ⁇ . When it is overcast, it becomes a negative evaluation value, and the evaluation value is represented by ⁇ .
  • FIG. 15 shows an experimental result regarding the tenth evaluation item “concentrate-distract”. In FIG. 15, when the user can concentrate, the evaluation value becomes a positive evaluation value, and the evaluation value is indicated by ⁇ .
  • FIG. 16 and FIG. 17 show the experimental results relating to the seventh evaluation item “Wake up-become sleepy”.
  • the evaluation value when sleepiness is awakened, the evaluation value is positive, and the evaluation value is represented by ⁇ , and when sleepiness is obtained, the evaluation value is negative, and the evaluation value is represented by ⁇ . Is done.
  • the hue of the first light emitted in the forward direction is low blue-green
  • the first light emitted in the upward direction is low blue-green
  • the first light emitted in the upward direction is high blue
  • the evaluation values of the evaluation item “wake up sleepiness” are 1.6, 1.6, 2, 1.6, 1.1, ⁇ 0.57, and 0.57, respectively.
  • the gradation lighting according to the first embodiment can give the person the most comfortable feeling, and if the gradation lighting according to the first embodiment is recognized as having a psychological effect with an evaluation value of 1 or more, the gradation lighting according to the first embodiment is comfortable to the person. It can give each psychological effect of feeling relaxed, refreshing and concentrating.
  • Example 2 the hue of the first light emitted in the forward direction is low yellow, the hue of the second light emitted in the upward direction is low blue, the evaluation item “accepted”, and the evaluation item “comfortable”
  • the evaluation values of “feeling”, evaluation item “relaxation”, evaluation item “clean feeling”, evaluation item “concentrate”, evaluation item “sleeping” and evaluation item “wake up sleepiness” are 1.43, 1 .1, 1.1, 1, 1, -0.29 and 0.29.
  • the gradation lighting of the second embodiment can give the most acceptable feeling to the person, and if it is recognized that there is a psychological effect with an evaluation value of 1 or more, the gradation lighting of the second embodiment is comfortable and acceptable to the person.
  • Each psychological effect of feeling, relaxing, refreshing and concentrating can be given.
  • Example 3 the hue of the first light emitted in the forward direction is high yellow, the hue of the second light emitted in the upward direction is low blue, the evaluation item “accepted”, and the evaluation item “comfortable”
  • the evaluation values of the evaluation item “feeling of relaxation”, the evaluation item “refreshing feeling”, the evaluation item “concentration”, the evaluation item “sleeping” and the evaluation item “waking up sleepiness” are 1.1, 1, respectively. .1, 1.6, 1, 0.57, -0.14 and 0.14.
  • the gradation lighting of Example 3 can give the person the most relaxing feeling, and if the gradation lighting of Example 3 is recognized as having a psychological effect with an evaluation value of 1 or more, the gradation lighting of Example 3 is acceptable to the person and is comfortable. Each psychological effect of feeling relaxed and refreshing can be provided.
  • Example 4 the hue of the first light emitted in the forward direction is low blue, the hue of the second light emitted in the upward direction is high yellow, the evaluation item “accepted”, and the evaluation item “comfortable”
  • the evaluation values of “feel”, evaluation item “relaxation”, evaluation item “clean feeling”, evaluation item “concentrate”, evaluation item “sleeping” and evaluation item “wake up sleepiness” are 1.7, 1, respectively. .1, 1.1, 0.57, 0.85, -0.42 and 0.42.
  • the gradation lighting of Example 4 can give the most acceptable feeling to a person, and if it is recognized that there is a psychological effect with an evaluation value of 1 or more, the gradation lighting of Example 4 is comfortable and acceptable to the person. Each psychological effect of feeling and relaxation can be given.
  • Example 5 the hue of the first light emitted in the forward direction is high purple, the hue of the second light emitted in the upward direction is high red, the evaluation item “accepted”, and the evaluation item “comfortable”
  • the evaluation values of “feeling”, evaluation item “relaxation”, evaluation item “clean feeling”, evaluation item “concentrate”, evaluation item “sleeping” and evaluation item “wake up sleepiness” are -2, ⁇ 1, respectively. .9, -1.9, -0.29, -2, -2 and 2.
  • Example 5 if the gradation lighting of Example 5 is recognized as having a psychological effect with an evaluation value of 1 or more, each psychological effect of awakening a person to sleep can be given.
  • Example 6 the hue of the first light emitted in the forward direction is low red, and the hue of the second light emitted in the upward direction is high blue-green, and the evaluation item “accepted” and the evaluation item “
  • the evaluation values of “comfort”, evaluation item “relaxation”, evaluation item “clean feeling”, evaluation item “concentrate”, evaluation item “sleeping” and evaluation item “wake up sleepiness” are 1, 1, 0.86, 0.14, 0.29, 1.29 and -1.29.
  • the gradation lighting of the sixth embodiment is recognized as having a psychological effect with an evaluation value of 1 or more, it can give a person a psychological effect such as an acceptable feeling of comfort and falling asleep.
  • the hue of the first light emitted in the forward direction is high purple
  • the hue of the second light emitted in the upward direction is low green
  • the evaluation item “accepted” The evaluation values of the evaluation item “comfort”, the evaluation item “relaxation”, the evaluation item “clean feeling”, the evaluation item “concentrate” and the evaluation item “wake up sleepiness” are ⁇ 0.85 and ⁇ 1, respectively. .4, -0.86, -1.1, -0.71 and -0.71.
  • the center of the field of view is the forward direction (an example of a first region that is part of the radiation angle region), and the periphery of the field of view is the upward direction (the first region). And an example of a second region that is a part of the radiation angle region.
  • the control unit 2 of the illumination device LDa determines the maximum saturation of the first and second lights irradiated on the radiation angle region.
  • the chromaticity range of the light becomes (u ′, v ′) coordinate points R_4 (0.440, 0.506), R-OR_4 (0.419, 0.521).
  • OR_4 (0.398, 0.537), OR-Y_4 (0.302, 0.549), Y_4 (0.237, 0.557), Y-G_4 (0.204, 0.559), G_4 (0.085, 0.568), G-BG_4 (0.098, 0.483), BG_4 (0.112, 0.398), BG-B_4 (0.122, 0.361), B_4 (0 .173, 0.169), BP_4 ( .245, 0.230), P_4 (0.317, 0.291), PR_4 (0.379, 0.398), and an upper limit boundary closed loop line obtained by connecting the points (u ′, v ′) coordinate points R_1 (0.268, 0.482), R-OR_1 (0.262, 0.485), OR_1 (0.257, 0.489), OR-Y_1 (0.233, 0).
  • the first and second LED light sources 10-1 and 10-2 are controlled so as to be included in the first chromaticity region between the lower limit boundary closed loop line obtained by connecting the points. That's fine.
  • Such an illuminating device LDa provides suitable illumination that is psychologically acceptable to a person who is in an environment of illumination light and who is in an environment of illumination light even when a desired hue combination is arbitrarily selected. it can.
  • the control unit 2 of the illumination device LDa includes first light that is applied to a first region of a part of the radiation angle region, and In the CIE 1976 u′v ′ chromaticity diagram, the second light irradiated to a part of the second region of the radiation angle region different from the first region is included in the first chromaticity region (2A) to (2A) to
  • the first and second LED light sources 10-1 and 10-2 may be controlled so as to satisfy any one of the conditions (2M).
  • Such an illuminating device LDa can suitably give a psychological effect of comfort to a person who is in an environment of illumination light.
  • the condition (2A) is that the first light irradiated to the first region is included in a white region defined by the following, and the second light irradiated to the second region is defined by the following low color Low blue area, Low chroma blue area, Low chroma green area, Low chroma yellow area, Low chroma orange area, Low chroma red area, Low chroma purple area, High chroma blue area, High chroma blue area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • Condition (2B) is that the first light irradiated to the first region is included in the low saturation blue region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue-green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • Condition (2C) is that the first light irradiated to the first region is included in a low-saturation blue-green region defined by the following, and the second light irradiated to the second region is defined by the following White area, low saturation blue area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • the condition (2D) is that the first light irradiated to the first region is included in the low-saturation green region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • Condition (2E) is that the first light irradiated to the first region is included in the low saturation yellow region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue-green area, low saturation green area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • Condition (2F) is that the first light irradiated to the first region is included in the low-saturation orange region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • the first light irradiated to the first region is included in the low saturation red region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • Condition (2H) is that the first light irradiated to the first region is included in the low-saturation purple region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • Condition (2I) is that the first light irradiated to the first region is included in a high saturation blue region defined by the following, and the second light irradiated to the second region is defined by the following white Area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • the first light irradiated on the first region is included in a high-saturation blue-green region defined by the following, and the second light irradiated on the second region is defined by the following: White area, Low chroma blue area, Low chroma blue area, Low chroma green area, Low chroma yellow area, Low chroma orange area, Low chroma red area, Low chroma purple area, High chroma blue area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • Condition (2K) is that the first light irradiated to the first region is included in a high-saturation green region defined by the following, and the second light irradiated to the second region is defined by the following white Area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation It is included in each of the blue-green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • the first light irradiated to the first region is included in a high saturation yellow region defined by the following, and the second light irradiated to the second region is defined by the following white Area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation It is included in each of the blue-green region, high-saturation green region, high-saturation orange region, high-saturation red region, and high-saturation purple region.
  • the first light irradiated to the first region is included in a high-saturation orange region defined by the following, and the second light irradiated to the second region is defined by the following white Area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation It is included in each of the blue-green region, the high-saturation green region, the high-saturation yellow region, the high-saturation red region, and the high-saturation purple region.
  • the control unit 2 of the illumination device LDa includes first light that is applied to a part of the first region of the radiation angle region, and In the CIE 1976 u′v ′ chromaticity diagram, the following second (3A) to (3A) to (B) are included in the CIE 1976 u′v ′ chromaticity diagram.
  • the first and second LED light sources 10-1 and 10-2 may be controlled so as to satisfy any one of the conditions (3M).
  • Such an illuminating device LDa can suitably give a psychological effect of a feeling of relaxation to a person who is in an environment of illumination light.
  • the condition (3A) is that the first light irradiated to a part of the first region of the radiation angle region is included in a white region defined by the following, and is one of the radiation angle regions different from the first region.
  • the second light emitted to the second region of the part is defined by the following: low saturation blue region, low saturation blue-green region, low saturation green region, low saturation red region, low saturation purple region, high saturation It is included in any one of the blue region, the high saturation blue-green region, the high saturation green region, and the high saturation yellow region
  • the condition (3B) is that the first region irradiated to a part of the first radiation angle region
  • the second light that is included in the low-saturation blue region defined by the following and is applied to the second region that is a part of the radiation angle region different from the first region is a low that is defined by the following Saturation blue-green region, low saturation orange region, low saturation red region, high saturation blue region, high saturation green region
  • the condition (3C) is that the first light
  • the condition (3F) is that the first light irradiated to a part of the first region of the radiation angle region is
  • the second light that is included in the low saturation orange region defined by the following and is applied to the second region that is a part of the radiation angle region different from the first region is a white region that is defined by the following: It is included in each of the saturation blue area, low saturation blue-green area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, and high saturation green area.
  • (3G) is the radiation angle region different from the first region, in which the first light irradiated to a part of the first region of the radiation angle region is included in the low saturation red region defined by the following:
  • the second light emitted to a part of the second region is defined as follows: white region, low saturation blue region, low saturation blue-green region, low saturation yellow region, low saturation orange region, high saturation blue It is included in any one of the green area, the high saturation green area, and the high saturation yellow area.
  • (3H) is the radiation angle region different from the first region, wherein the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation purple region defined by the following:
  • the second light emitted to a part of the second region is included in any of the low saturation blue region, the low saturation blue-green region, the low saturation red region, and the high saturation yellow region defined by the following:
  • the condition (3I) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high saturation blue region defined by the following, and is different from the first region:
  • the second light irradiated to a part of the second region of the radiation angle region is included in any of the white region and the high-saturation green region defined by the following, and the condition (3J) is:
  • the first light irradiated to a part of the first region of the radiation angle region is as follows.
  • the second light that is included in the defined high-saturation blue-green region and is applied to a second region that is part of the radiation angle region that is different from the first region is a white region that is defined by the following, a low-saturation blue Area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation green area, and high saturation yellow area
  • the condition (3K) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation green region defined by:
  • the second light irradiated to a part of the second region of the different radiation angle region is included in any one of the low saturation blue region and the high saturation blue region defined by the following, and the condition (3L ),
  • the first light irradiated to a part of the first region of the radiation angle region is A low saturation blue region defined by the following: the second light that is included in the high saturation yellow region defined by, and is applied to
  • the condition (3M) is included in any one of the saturation blue-green region, the high saturation blue region, and the high saturation orange region, and the condition (3M) is the first light irradiated to a part of the first region of the radiation angle region Is included in the high-saturation orange region defined by the following, and the low-saturation blue region in which the second light irradiated to a second region of the radiation angle region different from the first region is defined by the following It is included in.
  • the control unit 2 of the illumination device LDa includes first light that is applied to a first region of a part of the radiation angle region, and In the CIE 1976 u′v ′ chromaticity diagram, the second light irradiated to a part of the second region of the radiation angle region different from the first region is included in the first chromaticity region (4A) to (4A) to
  • the first and second LED light sources 10-1 and 10-2 may be controlled so as to satisfy any one of the conditions (4J).
  • Such an illuminating device LDa can suitably give a psychological effect of a refreshing feeling to a person who is in an environment of illumination light.
  • the condition (4A) is that a part of the radiation angle region different from the first region is included in the defined white region where the first light irradiated to a part of the first region of the radiation angle region is included.
  • the second light emitted to the second region is included in any one of the defined low-saturation blue region, high-saturation blue region, high-saturation blue-green region, high-saturation green region, and high-saturation purple region.
  • the condition (4B) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low saturation blue region and the radiation angle is different from the first region.
  • the second light emitted to the second region which is a part of the region is included in any of the defined low saturation blue-green region, high saturation blue region, high saturation blue-green region and high saturation yellow region.
  • the condition (4C) is applied to a part of the first region of the radiation angle region.
  • the defined white region includes a second light that is included in the defined low-saturation blue-green region and is irradiated to a second region that is a part of the radiation angle region different from the first region.
  • the condition (4D) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation green region and is different from the first region. Any one of the regions of the defined white region, low saturation blue region, high saturation blue region, high saturation blue-green region, and high saturation purple region when the second light emitted to a second region of a part of the radiation angle region.
  • the condition (4E) is included in the first region of the radiation angle region.
  • the second light that is included in the defined low saturation yellow region and is applied to a second region that is a part of the radiation angle region different from the first region is the defined low light. It is included in each of the saturation blue area, low saturation blue green area, low saturation green area, low saturation purple area, high saturation blue area, high saturation blue green area, and high saturation green area.
  • (4F) indicates that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation purple region and the radiation angle region is different from the first region.
  • the second light applied to a part of the second region is included in any of the defined low saturation blue region and low saturation blue-green region
  • the condition (4G) is: The first light applied to a first region of a part of the radiation angle region is included in the defined high-saturation blue region; and The second light irradiated to a part of the second region of the radiation angle region different from the first region is included in any one of the defined low saturation green region and high saturation green region
  • Condition (4H) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high-saturation blue-green region, and the radiation angle region is different from the first region.
  • the second light emitted to some of the second areas is the defined white area, low chroma blue area, low chroma blue green area, low chroma green area, low chroma yellow area, and low chroma orange. Area, a low saturation red area, a low saturation purple area, a high saturation green area, a high saturation orange area, and a high saturation red area, and the condition (4I) is one of the emission angle areas.
  • the first light emitted to the first region of the part is included in the defined high-saturation green region, and the first region
  • the second light irradiated to a part of the second region of the different radiation angle region is included in any of the defined low saturation blue region, high saturation blue region, high saturation blue-green region, and high saturation purple region.
  • the condition (4J) is that the first light applied to a part of the first region of the radiation angle region is included in the defined high saturation yellow region and is different from the first region.
  • the second light emitted to the second region that is a part of the radiation angle region is defined as the white region, the low saturation blue region, the low saturation blue-green region, the low saturation green region, the high saturation blue region, and the high saturation blue. It is included in each of the green region and the high saturation orange region.
  • the control unit 2 of the illumination device LDa includes the first light that is applied to a first region that is a part of the radiation angle region, and In the CIE 1976 u′v ′ chromaticity diagram, the second light irradiated to a part of the second region of the radiation angle region different from the first region is included in the first chromaticity region (5A) to (5L) below.
  • the first and second LED light sources 10-1 and 10-2 may be controlled so as to satisfy any one of the conditions (1).
  • Such an illuminating device LDa can suitably give a psychological effect of being able to concentrate on a person who is in an environment of illumination light without being distracted.
  • the condition (5A) is that a part of the radiation angle region that is different from the first region in which the first light irradiated to a part of the first region of the radiation angle region is included in the defined white region.
  • the second light emitted to the second region of the low-saturation blue region, low-saturation blue-green region, low-saturation green region, low-saturation yellow region, high-saturation blue region, high-saturation blue-green region.
  • the condition (5B) is that the first light irradiated to a part of the first region of the radiation angle region is defined as low as defined above.
  • the second light included in the saturation blue region and irradiated to a second region that is a part of the radiation angle region different from the first region is the defined white region, low saturation blue-green region, low Saturated green region, low chroma yellow region, low chroma orange region, low chroma red region, high chroma blue region, high chroma blue-green region, high chroma
  • the condition (5C) is that the first light irradiated to a part of the first area of the radiation angle area is defined as the low saturation.
  • Second light included in a blue-green region and irradiated to a second region of a part of the radiation angle region different from the first region is the defined white region, low chroma blue region, and low chroma It is included in one of the following areas: green area, low saturation yellow area, low saturation purple area, high saturation blue area, high saturation blue green area, high saturation green area, high saturation yellow area, and high saturation purple area.
  • 5D) is an example of one of the radiation angle regions different from the first region, in which the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation green region.
  • the second light emitted to the second region of the part is defined as the white region, the low saturation blue region, and the high saturation.
  • the condition (5E) is that the first light irradiated to a part of the first region of the radiation angle region is defined as low as defined above.
  • the second light that is included in the saturation yellow region and is applied to a part of the second region of the radiation angle region different from the first region is defined as the white region, the low saturation blue region, and the low saturation.
  • the first light applied to a part of the first region is included in the defined low-saturation orange region and applied to a part of the second region of the radiation angle region different from the first region.
  • the second light is the low saturation blue region, high saturation blue region, high saturation blue-green region and high saturation defined above.
  • the condition (5G) is that the first light irradiated to a part of the first region of the radiation angle region is in the defined low saturation red region.
  • the second light that is included and is applied to a part of the second region of the radiation angle region different from the first region is included in any of the defined white region and high saturation yellow region.
  • the condition (5H) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation purple region and is different from the first region.
  • the second light applied to the second region that is a part of the radiation angle region is included in the defined high saturation blue region
  • the condition (5I) is that the first region that is a part of the radiation angle region is included in the first region.
  • the irradiated first light is included in the defined high saturation blue region and is different from the first region.
  • each region of the defined white region, low saturation green region, low saturation yellow region, low saturation orange region, and high saturation yellow region when the second light applied to a second region of a part of the radiation angle region is defined
  • the condition (5J) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high-saturation blue-green region
  • the second light emitted to a second region that is a part of the radiation angle region different from the first region is the defined white region, low chroma blue region, low chroma green region, low chroma green region, low A saturation yellow region, a low saturation orange region, a low saturation purple region, a high saturation blue region, and a high saturation yellow region
  • the condition (5K) is a part of the radiation angle region
  • the first light emitted to the first region is included in the defined high-saturation green region and is different from the first region.
  • the second light applied to a second region of the radiation angle region is included in the defined high saturation blue region, and the condition (5L) is a first region of the radiation angle region.
  • the second light irradiated to the second region which is included in the defined high saturation yellow region and is part of the radiation angle region different from the first region is defined as It is included in any one of the low saturation blue region, the high saturation blue region, and the high saturation blue-green region.
  • the control unit 2 of the illumination device LDa includes a first light that is applied to a first region of a part of the radiation angle region, and In the CIE 1976 u′v ′ chromaticity diagram, the second light applied to a part of the second region of the radiation angle region different from the first region is included in the first chromaticity region (6A) to (
  • the first and second LED light sources 10-1 and 10-2 may be controlled so as to satisfy any one of the conditions 6N).
  • Such an illuminating device LDa can suitably give a psychological effect of sleepiness to a person who is in an environment of illumination light.
  • the condition (6A) is that the first light irradiated to a part of the first region of the radiation angle region is included in a white region defined by the following, and is one of the radiation angle regions different from the first region.
  • the second light emitted to the second region of the area is defined by the following: low saturation green region, low saturation yellow region, low saturation orange region, low saturation red region, low saturation purple region, high saturation blue
  • the condition (6B) is that the first light irradiated to a part of the first region of the radiation angle region is defined by the following:
  • the second light included in the saturation blue region and irradiated to a second region of the radiation angle region that is different from the first region is a white region defined by the following, a low saturation blue-green region, Low chroma green area, low chroma yellow area, low chroma red area, low chroma purple area, high chroma blue-green area, high chroma It is included in each of the green region, the high saturation yellow region
  • the first light irradiated to the first region of the first light is included in the low-saturation orange region defined by the following, and the second light is irradiated to a second region of the radiation angle region different from the first region.
  • Low saturation blue area, low saturation blue-green area, low saturation defined by It is included in each of the green region, the low saturation yellow region, the low saturation red region, the low saturation purple region, the high saturation blue region, and the high saturation yellow region, and the condition (6G) is the emission angle
  • the first light irradiated to a part of the first region is included in the low saturation red region defined by the following, and the part of the second region of the radiation angle region is different from the first region.
  • the irradiated second light is defined by the following white areas, low chroma blue areas, low chroma blue green areas, low chroma green areas, low chroma yellow areas, low chroma orange areas, and high chroma blue green areas.
  • the condition (6H) is that the first light irradiated to a part of the first area of the radiation angle area is included in the low-saturation purple area defined by the following: And the second light irradiated to a part of the second region of the radiation angle region different from the first region is Included in each of the low saturation blue-green region, low saturation yellow region, low saturation orange region, low saturation red region, high saturation blue region, high saturation yellow region and high saturation red region defined by The condition (6I) is that the first light irradiated to a first region of a part of the radiation angle region is included in a high saturation blue region defined by the following, and is different from the first region.
  • the second light emitted to the second region that is a part of the angular region is included in any of the white region, the low saturation green region, the low saturation orange region, and the high saturation orange region defined by the following.
  • the condition (6J) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation blue-green region defined by the following, and is different from the first region:
  • the second light applied to the second region that is a part of the radiation angle region is as follows.
  • the condition (6K) is that the first light irradiated to a part of the first region of the radiation angle region is in the high saturation green region defined by the following:
  • the second light that is included and is applied to a part of the second region of the radiation angle region different from the first region is included in a high saturation red region defined by the following
  • the condition (6L) is The second light of the part of the radiation angle region different from the first region is included in the high saturation yellow region defined by the following, and the first light irradiated to the part of the first region of the radiation angle region
  • the second light applied to the region is included in any of the white region, the low saturation purple region, and the high saturation orange region defined by the following
  • the condition (6M) The first light emitted to some of the first areas is defined by A low saturation blue region and a low saturation defined by the following: the second light that is included in the high saturation orange region and is irradiated to a second region of the radiation angle region that is different from the first region;
  • the control unit 2 of the illumination device LDa includes the first and second lights irradiated to a part of the first region of the radiation angle region.
  • the first and second lights irradiated to a part of the second region of the radiation angle region different from the first region are any of the following (7A) to (7I)
  • the first and second LED light sources 10-1 and 10-2 may be controlled so as to satisfy the condition.
  • Such an illuminating device LDa can suitably give a psychological effect of awakening sleepiness to a person in an environment of illumination light.
  • the condition (7A) is that the first light irradiated to a part of the first region of the radiation angle region is included in a white region defined by the following, and is one of the radiation angle regions different from the first region.
  • the second light irradiated to the second region of the part is included in the high saturation purple region defined by the following
  • the condition (7B) is that the first region irradiated to a part of the first region of the radiation angle region is The second light that is included in the low-saturation blue-green region defined by the following and is applied to the second region that is part of the radiation angle region different from the first region is defined by the following:
  • the condition (7C) is that the first light irradiated to a part of the first area of the radiation angle area is included in a low saturation red area defined by the following: Irradiating a second region of the radiation angle region different from the first region.
  • the second light is included in the high-saturation orange region defined by the following, and the condition (7D) is that the first light irradiated to a part of the first region of the radiation angle region is defined by the following:
  • the second light that is included in the low-saturation purple region and is applied to the second region that is part of the radiation angle region different from the first region is included in the high-saturation purple region defined by Yes
  • the condition (7E) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high saturation green region defined by the following, and the radiation angle is different from the first region
  • the second light emitted to the second region that is a part of the region is included in any of the low saturation yellow region, the low saturation red region, the high saturation yellow region, and the high saturation orange region defined by the following:
  • the condition (7F) is a part of the radiation angle region.
  • the first light irradiated to the first region is included in the high saturation yellow region defined by the following, and the second light irradiated to a part of the second region of the radiation angle region different from the first region is It is included in each of the high-saturation green region and the high-saturation red region defined by the following, and the condition (7G) is that the first light irradiated to a part of the first region of the radiation angle region is A low-saturation purple region defined by the following: a second light that is included in a high-saturation orange region defined by: The high saturation red and the high saturation purple region are included in any one of the regions, and the condition (7H) is that the first light irradiated to a part of the first region of the radiation angle region is defined by the following high saturation A red region and the first region;
  • the second light applied to a second region of a part of the different radiation angle region is a low saturation orange region, a high saturation blue region, a high saturation green region, a high saturation
  • each area is defined as follows.
  • white areas are coordinate points R_1 (0.268, 0.482), R-OR_1 (0.262, 0.485), OR_1 (0.257, 0. 489), OR-Y_1 (0.233, 0.492), Y_1 (0.217, 0.494), Y-G_1 (0.209, 0.495), G_1 (0.179, 0.497) , G-BG_1 (0.182, 0.476), BG_1 (0.186, 0.455), BG-B_1 (0.188, 0.445), B_1 (0.201, 0.397), B -P_1 (0.219, 0.413), P_1 (0.237, 0.428), P_R_1 (0.252, 0.455) is an inner region surrounded by a closed loop line connecting points.
  • the low-saturation red areas are represented by coordinate points R-OR_3 (0.367, 0.509), R_3 (0.382, 0.498), and PR_3 (0.336, 0) of (u ′, v ′). .417), P-R_1 (0.252, 0.455), R_1 (0.268, 0.482), and R-OR_1 (0.262, 0.485) are surrounded by a closed loop line. The inner area.
  • the low-saturation orange region includes coordinate points OR-Y_3 (0.279, 0.530), OR_3 (0.351, 0.521), R-OR_3 (0.367, 0) of (u ′, v ′). .509), R-OR_1 (0.262, 0.485), OR_1 (0.257, 0.489), and OR-Y_1 (0.233, 0.492) are surrounded by a closed loop line. The inner area.
  • the low saturation yellow area is represented by the coordinate points YG_3 (0.206, 0.538), Y_3 (0.231, 0.536), OR-Y_3 (0.279, 0) of (u ′, v ′). .530), OR-Y_1 (0.233, 0.492), Y_1 (0.217, 0.494), and YG_1 (0.209, 0.495) are surrounded by a closed loop line. The inner area.
  • the low-saturation green areas are coordinate points G-BG_3 (0.126, 0.481), G_3 (0.116, 0.544), Y-G_3 (0.206, 0) of (u ′, v ′). .538), YG_1 (0.209, 0.495), G_1 (0.179, 0.497), and G-BG_1 (0.182, 0.476) are surrounded by a closed loop line. The inner area.
  • the low-saturation blue-green regions are coordinate points BG-B_3 (0.144, 0.389), BG_3 (0.136, 0.417), G-BG_3 (0.126, 0.481), G-BG_1 (0.182, 0.476), BG_1 (0.186, 0.455), and BG-B_1 (0.188, 0.445). This is the inner area.
  • the low-saturation blue region is represented by coordinate points BP_3 (0.236, 0.291), B_3 (0.182, 0.245), BG-B_3 (0.144, 0) of (u ′, v ′). 389), BG-B_1 (0.188, 0.445), B_1 (0.201, 0.397), and BP_1 (0.219, 0.413) are surrounded by a closed loop line. The inner area.
  • the low-saturation purple areas are coordinate points PR_3 (0.336, 0.417), P_3 (0.291, 0.336), BP_3 (0.236, 0) of (u ′, v ′). .291), BP_1 (0.219, 0.413), P_1 (0.237, 0.428), and PR_1 (0.252, 0.455) are surrounded by a closed loop line. The inner area.
  • the high-saturation red region includes coordinate points R-OR_4 (0.419, 0.521), R_4 (0.440, 0.506), and PR-4 (0.379, 0.398) of (u ′, v ′). ), P—R — 3 (0.336, 0.417), R — 3 (0.382, 0.498), R—OR — 3 (0.367, 0.509) It is.
  • the high-saturation orange areas are represented by coordinate points OR-Y_4 (0.302, 0.549), OR_4 (0.398, 0.537), R-OR_4 (0.419, 0.521) of (u ′, v ′). ), R-OR — 3 (0.367, 0.509), OR — 3 (0.351, 0.521), OR-Y — 3 (0.279, 0.530) It is.
  • the high saturation yellow area is represented by the coordinate points YG_4 (0.204, 0.559), Y_4 (0.237, 0.557), OR-Y_4 (0.302, 0.549) of (u ′, v ′). ), OR-Y — 3 (0.279, 0.530), Y — 3 (0.231, 0.536), YG — 3 (0.206, 0.538) It is.
  • the high-saturation green region includes coordinate points G-BG_4 (0.098, 0.483), G_4 (0.085, 0.568), Y-G_4 (0.204, 0.559) of (u ′, v ′). ), YG_3 (0.206, 0.538), G_3 (0.116, 0.544), G-BG_3 (0.126, 0.481) and the inner region surrounded by the closed loop line connecting the points It is.
  • the high-saturation blue-green region includes coordinate points BG-B_4 (0.122, 0.361), BG_4 (0.112, 0.398), G-BG_4 (0.098, 0. 483), G-BG_3 (0.126, 0.481), BG_3 (0.136, 0.417), and BG-B_3 (0.144, 0.389). It is an area.
  • the high-saturation blue areas are coordinate points BP_4 (0.245, 0.230), B_4 (0.173, 0.169), BG-B_4 (0.122, 0.361) of (u ′, v ′). ), BG-B_3 (0.144, 0.389), B_3 (0.182, 0.245), BP_3 (0.236, 0.291), the inner region surrounded by the closed loop line connecting the points It is.
  • the high-saturation purple region is represented by coordinate points PR_4 (0.379, 0.398), P_4 (0.317, 0.291), and BP_4 (0.245, 0.230) of (u ′, v ′). ), BP_3 (0.236, 0.291), P_3 (0.291, 0.336), PR_3 (0.336, 0.417), and the inner region surrounded by the closed loop line connecting the points It is.
  • the lighting device LDa of the first mode shown in FIGS. 1 to 8 is used as the lighting device LD that realizes gradation lighting that gives a predetermined psychological effect, but the following second and third modes are used.
  • the illumination devices LDb and LDc may be used.
  • FIG. 19 is a perspective view showing an appearance of the illumination device of the second aspect in the embodiment.
  • 20 is a cross-sectional perspective view showing the configuration of the illumination device of the second aspect taken along the cutting line CP shown in FIG.
  • FIG. 21 is a partial cross-sectional view showing the configuration of the illumination device of the second aspect.
  • FIG. 22 is a diagram for explaining an example when the lighting device of the second aspect is applied to a living room.
  • the lighting device LDb of the second aspect is a table-top lighting device LD. 19 to 21, the illumination device LDb according to the second aspect includes a first illumination unit LP1 for illuminating a table and a second illumination unit LP2 for performing gradation illumination that gives a predetermined psychological effect. It has the lighting part.
  • the illuminating device LDb includes a frame 100 formed of a cylindrical body having a rectangular cross section having an upper wall portion 100a, a lower wall portion 100b, and a pair of left and right side wall portions 100c and 100d connecting the upper wall portion 100a and the lower wall portion 100b. Is provided.
  • a hollow substantially triangular prism-shaped pedestal portion 130 is provided on the inner surface of the lower wall portion 100b facing the inside of the frame 100.
  • a control unit (not shown) for controlling the first and second illumination units LP1 and LP is arranged inside the pedestal unit 130.
  • the main surface plate 131 has three switch elements SW1 to SW3 as input units. It is arranged.
  • the switch element SW1 is for turning on / off the first illumination unit LP1
  • the switch element SW2 is for turning on / off the second illumination unit LP2
  • the switch element SW3 is a power switch of the illumination device LDb. is there.
  • the unillustrated control unit controls gradation illumination of the second illumination unit LP2 so as to give a predetermined psychological effect set in advance.
  • the first illumination portion LP1 is disposed on the front side
  • the second illumination portion LP2 is disposed on the rear side.
  • the first illuminating unit LP1 extends from the front side to the rear side, and is inclined so as to gradually move away from the upper wall part 100a as it approaches the upper wall part 100a on the front side and goes to the rear side.
  • a light guide plate 103 is disposed on the reflection plate 104, and a white LED 101 disposed on the LED substrate 102 is incident on one end on the rear side of the light guide plate 103 from the side surface of the light guide plate 103. Is arranged.
  • a cover member 105 is disposed on the entire surface of the light guide plate 103 with a predetermined space therebetween.
  • a first illumination unit LP1 the white light emitted from the white LED 101 is reflected by the reflection plate 104 while being guided through the light guide plate 103, and the reflected light is radiated to the outside through the cover member 105.
  • the tabletop is illuminated.
  • the 2nd illumination part LP2 is comprised similarly to the light source part 1 in the illuminating device LDa of a 1st aspect.
  • the second illumination unit LP2 includes a second illumination unit body 17b having a substantially prismatic shape that is long in one direction.
  • the second illumination unit main body 17b is formed with a first recess 171b-1 that is formed from one side surface toward the inside and that is long along the one direction, and from the other side surface adjacent to the one side surface to the inside.
  • a long second recess 171b-2 is formed along the one direction.
  • Both side surfaces of the first recess 171b-1 each have a curved shape that swells outward from the center of the first recess 171b-1, and the heat sink 15-1 made of, for example, aluminum is formed on the first bottom surface thereof.
  • the first LED substrate 14-1 is disposed through the.
  • the plurality of daylight white LEDs 11-1, the plurality of light bulb color LEDs 12-1, and the plurality of RGB LEDs 13-1 are arranged in parallel along the one direction. That is, the first LED light source 10-1 is disposed on the first bottom surface of the first recess 171b-1. Similarly, both side surfaces of the second recess 171b-2 each have a curved shape that swells outward from the center of the second recess 171b-2, and the second bottom surface has, for example, an aluminum heat sink. A second LED substrate 14-2 is disposed via 15-2.
  • the plurality of daylight white LEDs 11-2, the plurality of light bulb color LEDs 12-2, and the plurality of RGB LEDs 13-2 are arranged in parallel along the one direction. That is, the second LED light source 10-2 is disposed on the second bottom surface of the second recess 171b-2.
  • the first LED light source 10-1 and the second LED light source 10-2 are arranged so that the first optical axis AX1 of the first LED light source 10-1 and the second optical axis AX2 of the second LED light source 10-2 intersect each other.
  • the first and second recesses 171b-1 and 171b-2 are respectively disposed.
  • the first bottom surface of the first recess 171b-1 and the second bottom surface of the second recess 171b-2 are formed so as to intersect each other at their extended surfaces.
  • the first optical axis AX1 and the second optical axis AX2 to cross each other, in a radiation angle region that is a predetermined distance away from the light source unit 1, a part of the first light and a part of the second light. Overlap each other, and gradation illumination is realized on the irradiated surface.
  • a plate-like cover having an L-shaped cross section extending in the one direction so as to close the vicinity of each opening of the first and second recesses 171b-1 and 171b-2 in the second illumination section main body 17b.
  • a member 16b is provided.
  • the cover member 16b is formed of a material having translucency with respect to the first light emitted from the first LED light source 10-1 and the second light emitted from the second LED light source 10-2.
  • the first and second lights emitted from the first and second LED light sources 10-1 and 10-2 are partially emitted in the radiation angle region as shown in FIG. Are emitted so as to overlap each other on the wall surface of the light source, so that the gradation illumination extends from the region of the hue A due to the first light to the region of the hue B due to the second light through the intermediate region between the hue A and the hue B Can illuminate.
  • FIG. 23 is a perspective view illustrating an appearance of the illumination device of the third aspect in the embodiment.
  • FIG. 24 is a side view showing the configuration of the illumination device of the third aspect.
  • FIG. 24A is an overall side view
  • FIG. 24B is a partial side view.
  • the illumination device LDc according to the third aspect is a ceiling installation type (radiation projection type) illumination device LD. 23 and 24, the illumination device LDc according to the third aspect includes a first illumination unit LP3 for illuminating a room and a second illumination unit LP4 for performing gradation illumination that gives a predetermined psychological effect. It has the lighting part.
  • the illumination device LDc includes short and high first and second cylindrical portions 201b and 201d having different diameters, a disk-shaped top plate portion 201a that closes one opening of the first cylindrical portion 201b, and a first cylinder.
  • the annular plate-like connecting part 201c that connects the peripheral part of the other opening of the cylindrical part 201b and the peripheral part of the one opening of the second cylindrical part 201d.
  • a frame 201 having a flange portion 201e extending a predetermined length outward in the direction is provided.
  • a so-called hook sealing plug 202 is disposed on the top plate 201a at a substantially central position.
  • a plurality of white LEDs as the first illumination unit LP3 are arranged in parallel along the circumferential direction on the inner side surface of the top plate portion 201a and the inner side surface of the connecting portion 201d.
  • the flange part 201e is provided with a cover member 203 so as to close the other opening of the second cylindrical part 201d.
  • a control unit (not shown) that controls gradation illumination of the second illumination unit LP4 is provided so as to give a predetermined psychological effect set in advance.
  • connection part outer surface of the connection part 201c and the peripheral part of the one opening part of the 2nd cylindrical part 201d is an inclined surface.
  • a plurality of RGB LEDs capable of emitting an arbitrary color are arranged along the circumferential direction as the first LED light source 18P of the second illumination unit PL4.
  • a plurality of RGB LEDs capable of emitting an arbitrary color are disposed along the circumferential direction as the second LED light source 18B of the second illumination unit PL4 on the outer peripheral side surface of the second cylindrical portion 201d.
  • the first and second light emitted from the first and second LED light sources 18P and 18B are on the ceiling surface separated by a predetermined distance from the center position of the illumination device LDc, as shown in FIG. As shown in the figure, each of them overlaps, and the ceiling is lit with gradation illumination from the area of hue A by the first light to the area of hue B by the second light through the intermediate area of the intermediate colors of hue A and hue B. Can illuminate.
  • An illumination device includes first and second LED light sources capable of emitting a plurality of colors of light, and a part of the first light emitted from the first LED light source and the second LED light source.
  • a light source unit that emits the first and second lights so that a part of the second light overlaps with each other in a radiation angle region, and the first and second lights that emit the first and second lights in different colors.
  • a control unit that controls the second LED light source. Then, the control unit has a chromaticity range of the maximum saturation light of the first and second lights irradiated on the radiation angle region, in the CIE 1976 u′v ′ chromaticity diagram, (u ′, v ′).
  • the first and second lights emitted from the first and second LED light sources in different colors are emitted so that each part thereof overlaps each other in the radiation angle region. Can gradationally illuminate the radiation angle region.
  • the illumination device since the first and second lights irradiated on the radiation angle region are included in the first chromaticity region, the radiation angle region can be gradationally illuminated with light received by a person. Therefore, the illuminating device can provide suitable illumination that is psychologically acceptable to a person who is in an environment of illumination light even when a desired hue combination is arbitrarily selected.
  • the control unit includes a first light that is applied to a first region that is a part of the radiation angle region, and one of the radiation angle regions that is different from the first region.
  • the second light emitted to the second region of the part satisfies the following conditions (2A) to (2M) included in the first chromaticity region: Control the first and second LED light sources.
  • the condition (2A) is that the first light irradiated to the first region is included in a white region defined by the following, and the second light irradiated to the second region is defined by the following low color Low blue area, Low chroma blue area, Low chroma green area, Low chroma yellow area, Low chroma orange area, Low chroma red area, Low chroma purple area, High chroma blue area, High chroma blue area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • Condition (2B) is that the first light irradiated to the first region is included in the low saturation blue region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue-green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • Condition (2C) is that the first light irradiated to the first region is included in a low-saturation blue-green region defined by the following, and the second light irradiated to the second region is defined by the following White area, low saturation blue area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • the condition (2D) is that the first light irradiated to the first region is included in the low-saturation green region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • Condition (2E) is that the first light irradiated to the first region is included in the low saturation yellow region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue-green area, low saturation green area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • Condition (2F) is that the first light irradiated to the first region is included in the low-saturation orange region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • the first light irradiated to the first region is included in the low saturation red region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • Condition (2H) is that the first light irradiated to the first region is included in the low-saturation purple region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • Condition (2I) is that the first light irradiated to the first region is included in a high saturation blue region defined by the following, and the second light irradiated to the second region is defined by the following white Area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • the first light irradiated on the first region is included in a high-saturation blue-green region defined by the following, and the second light irradiated on the second region is defined by the following: White area, Low chroma blue area, Low chroma blue area, Low chroma green area, Low chroma yellow area, Low chroma orange area, Low chroma red area, Low chroma purple area, High chroma blue area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • Condition (2K) is that the first light irradiated to the first region is included in a high-saturation green region defined by the following, and the second light irradiated to the second region is defined by the following white Area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation It is included in each of the blue-green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region.
  • the first light irradiated to the first region is included in a high saturation yellow region defined by the following, and the second light irradiated to the second region is defined by the following white Area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation It is included in each of the blue-green region, high-saturation green region, high-saturation orange region, high-saturation red region, and high-saturation purple region.
  • the first light irradiated to the first region is included in a high-saturation orange region defined by the following, and the second light irradiated to the second region is defined by the following white Area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation It is included in each of the blue-green region, the high-saturation green region, the high-saturation yellow region, the high-saturation red region, and the high-saturation purple region.
  • the first and second lights satisfy any one of the above conditions (2A) to (2M), so that the radiation angle region can be gradationally illuminated with light that gives comfort to the person, A comfortable lighting environment can be provided even if a person spends a long time. Therefore, the illuminating device can suitably give a psychological effect of comfort to a person who is in an environment of illumination light.
  • the control unit includes a first light that is applied to a first region that is a part of the radiation angle region, and one of the radiation angle regions that is different from the first region.
  • the second light applied to the second region of the part satisfies the following conditions (3A) to (3M) included in the first chromaticity region: Control the first and second LED light sources.
  • the condition (3A) is that the first light irradiated to a part of the first region of the radiation angle region is included in a white region defined by the following, and is one of the radiation angle regions different from the first region.
  • the second light emitted to the second region of the part is defined by the following: low saturation blue region, low saturation blue-green region, low saturation green region, low saturation red region, low saturation purple region, high saturation It is included in each of the blue region, the high saturation blue-green region, the high saturation green region, and the high saturation yellow region.
  • Condition (3B) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation blue region defined by the following, and the radiation angle different from the first region
  • the second light irradiated to the second region of a part of the region is defined by the following low saturation blue-green region, low saturation orange region, low saturation red region, high saturation blue region, high saturation green region and high saturation yellow It is included in any one of the areas.
  • Condition (3C) is that the first light irradiated to a first region of a part of the radiation angle region is included in a low-saturation blue-green region defined by the following, and is different from the first region.
  • the second light emitted to the second area that is a part of the angle area is defined by the following: white area, low saturation blue area, low saturation green area, low saturation yellow area, low saturation orange area, low It is included in any one of the regions of the saturation red region, the low saturation purple region, the high saturation blue region, the high saturation blue-green region, the high saturation green region, the high saturation yellow region, and the high saturation orange region.
  • Condition (3D) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation green region defined by the following, and the radiation angle is different from the first region
  • the second light emitted to the second region of a part of the region is defined as follows: white region, low saturation blue region, low saturation blue-green region, low saturation yellow region, low saturation orange region, low It is included in any one of the saturation red region, the high saturation blue region, the high saturation blue-green region, and the high saturation yellow region.
  • Condition (3E) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation yellow region defined by the following, and the radiation angle is different from the first region
  • the second light emitted to the second region that is a part of the region is defined as follows: white region, low saturation blue region, low saturation blue-green region, low saturation green region, low saturation orange region, low It is included in any one of the saturation purple region, the high saturation blue region, the high saturation blue-green region, the high saturation green region, the high saturation orange region, and the high saturation purple region.
  • Condition (3F) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation orange region defined by the following, and the radiation angle is different from the first region
  • the second light emitted to the second region that is a part of the region is defined as follows: white region, low saturation blue region, low saturation blue-green region, low saturation red region, low saturation purple region, high saturation It is included in any of the blue region, the high saturation blue-green region, and the high saturation green region.
  • the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation red region defined by the following, and the radiation angle different from the first region
  • the second light emitted to the second region that is part of the region is defined by the following: a white region, a low saturation blue region, a low saturation blue-green region, a low saturation yellow region, a low saturation orange region, and a high saturation It is included in any one of the blue-green region, the high-saturation green region, and the high-saturation yellow region.
  • Condition (3H) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation purple region defined by the following, and the radiation angle is different from the first region
  • the second light emitted to a second region that is a part of the region is one of the low saturation blue region, the low saturation blue-green region, the low saturation red region, and the high saturation yellow region defined by the following: It is included.
  • Condition (3I) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high saturation blue region defined by the following and the radiation angle region is different from the first region.
  • the second light irradiated to some of the second regions is included in any of the white region and the high-saturation green region defined by the following.
  • Condition (3J) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation blue-green region defined by the following, and is different from the first region in the radiation angle region
  • the second light irradiated to a part of the second region is defined as follows: white region, low chroma blue region, low chroma green region, low chroma yellow region, low chroma orange region, low chroma It is included in any of the red region, the low saturation purple region, the high saturation blue region, the high saturation green region, and the high saturation yellow region.
  • condition (3K) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation green region defined by the following, and the radiation angle region is different from the first region.
  • the second light irradiated to a part of the second region is included in any of the low saturation blue region and the high saturation blue region defined by the following.
  • Condition (3L) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation yellow region defined by the following, and the radiation angle region is different from the first region.
  • the second light emitted to some of the second regions is included in any of the low saturation blue region, the low saturation blue-green region, the high saturation blue region, and the high saturation orange region defined by the following: is there.
  • Condition (3M) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation orange region defined by the following, and the radiation angle region is different from the first region.
  • the second light irradiated to a part of the second region is included in the low saturation blue region defined by the following.
  • the radiation angle region is gradated with light that gives a person a feeling of relaxation (relaxation).
  • Lighting can be provided, providing a lighting environment where people can relax. Therefore, the illuminating device can suitably give a psychological effect of a feeling of relaxation to a person who is in an environment of illumination light.
  • the control unit includes a first light that is applied to a first region that is a part of the radiation angle region, and one of the radiation angle regions that is different from the first region. So that the second light emitted to the second region of the part satisfies the following conditions (4A) to (4J) included in the first chromaticity region in the CIE 1976 u′v ′ chromaticity diagram: Control the first and second LED light sources.
  • the condition (4A) is that a part of the radiation angle region different from the first region is included in the defined white region where the first light irradiated to a part of the first region of the radiation angle region is included.
  • the second light emitted to the second region is included in any one of the defined low-saturation blue region, high-saturation blue region, high-saturation blue-green region, high-saturation green region, and high-saturation purple region. .
  • Condition (4B) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low saturation blue region, and is different from the first region in the radiation angle region
  • the second light emitted to a part of the second region is included in any of the defined low-saturation blue-green region, high-saturation blue region, high-saturation blue-green region, and high-saturation yellow region. .
  • Condition (4C) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation blue-green region and is different from the first region in the radiation angle
  • the second light emitted to the second region that is a part of the region is defined as the white region, the low saturation blue region, the low saturation green region, the low saturation yellow region, the low saturation purple region, and the high saturation blue region.
  • the high saturation blue-green region, the high saturation green region, and the high saturation yellow region are included in any one of the regions.
  • the condition (4D) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation green region and is different from the first region in the radiation angle region
  • the second light emitted to a part of the second region is included in any of the defined white region, low saturation blue region, high saturation blue region, high saturation blue-green region, and high saturation purple region. It is.
  • the condition (4E) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low saturation yellow region, and the radiation angle region is different from the first region.
  • the second light irradiated to a part of the second region is defined as the low saturation blue region, the low saturation blue-green region, the low saturation green region, the low saturation purple region, the high saturation blue region, and the high saturation blue. It is included in each of the green region and the high saturation green region.
  • Condition (4F) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation purple region, and is different from the first region in the radiation angle region
  • the second light emitted to a part of the second region is included in each of the defined low saturation blue region and low saturation blue-green region.
  • Condition (4G) is that the first light applied to a part of the first region of the radiation angle region is included in the defined high saturation blue region and is different from the first region in the radiation angle region. 2nd light irradiated to the 2nd area
  • Condition (4H) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high-saturation blue-green region, and the radiation angle region is different from the first region.
  • the second light emitted to some of the second areas is the defined white area, low chroma blue area, low chroma blue green area, low chroma green area, low chroma yellow area, and low chroma orange. It is included in any one of the region, the low saturation red region, the low saturation purple region, the high saturation green region, the high saturation orange region, and the high saturation red region.
  • Condition (4I) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high-saturation green region, and one of the radiation angle regions different from the first region.
  • 2nd light irradiated to the 2nd field of a part is contained in each field of each of the above-mentioned low chroma blue field, high chroma blue field, high chroma blue green field, and high chroma purple field.
  • Condition (4J) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high saturation yellow region, and one of the radiation angle regions different from the first region.
  • the second light emitted to the second region of the section is defined as the white region, the low saturation blue region, the low saturation blue-green region, the low saturation green region, the high saturation blue region, the high saturation blue-green region, and the high saturation orange. It is included in any one of the areas.
  • the radiation angle area can be gradationally illuminated with light that gives a person a clean feeling, Can provide a refreshing lighting environment with a refreshing feeling. Therefore, the illuminating device can suitably give a psychological effect of a refreshing feeling to a person who is in an environment of illumination light.
  • the control unit includes a first light that is applied to a first region that is a part of the radiation angle region, and one of the radiation angle regions that is different from the first region.
  • the second light emitted to the second region of the part satisfies the following conditions (5A) to (5L) included in the first chromaticity region: Control the first and second LED light sources.
  • the condition (5A) is that a part of the radiation angle region that is different from the first region in which the first light irradiated to a part of the first region of the radiation angle region is included in the defined white region.
  • the condition (5B) is that the first light emitted to a part of the first region of the radiation angle region is included in the defined low-saturation blue region and is different from the first region in the radiation angle region
  • the second light irradiated to a part of the second region is defined as the white region, the low saturation blue-green region, the low saturation green region, the low saturation yellow region, the low saturation orange region, and the low saturation. It is included in any of the red region, the high saturation blue region, the high saturation blue-green region, the high saturation green region, and the high saturation yellow region.
  • Condition (5C) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low saturation blue-green region and is different from the first region in the radiation angle
  • the second light emitted to the second region that is a part of the region is defined as the white region, the low saturation blue region, the low saturation green region, the low saturation yellow region, the low saturation purple region, and the high saturation blue region.
  • the condition (5D) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation green region and is different from the first region in the radiation angle region
  • the second light emitted to a part of the second region is included in any one of the defined white region, low saturation blue region, high saturation blue region, and high saturation blue-green region.
  • Condition (5E) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low saturation yellow region, and is different from the first region in the radiation angle region
  • the second light irradiated to a part of the second region is defined as a white region, a low saturation blue region, a low saturation blue-green region, a low saturation red region, a high saturation blue region, a high saturation blue-green region, It is included in any one of the high saturation green region and the high saturation red region.
  • the condition (5F) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation orange region and is different from the first region in the radiation angle region
  • the second light emitted to a part of the second region is included in any one of the defined low saturation blue region, high saturation blue region, high saturation blue-green region, and high saturation yellow region.
  • the condition (5G) is that the first light irradiated on a part of the first region of the radiation angle region is included in the defined low saturation red region and is different from the first region in the radiation angle region
  • the second light emitted to a part of the second region is included in any of the defined white region and high saturation yellow region.
  • condition (5H) is that the first light irradiated on a part of the first region of the radiation angle region is included in the defined low-saturation purple region and is different from the first region in the radiation angle region
  • the second light emitted to a part of the second region is included in the defined high saturation blue region.
  • Condition (5I) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high-saturation blue region, and one of the radiation angle regions different from the first region.
  • the second light emitted to the second region of the portion is included in any of the defined white region, low saturation green region, low saturation yellow region, low saturation orange region, and high saturation yellow region That is.
  • Condition (5J) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high-saturation blue-green region and the radiation angle region is different from the first region.
  • the second light emitted to some of the second areas is the defined white area, low saturation blue area, low saturation green area, low saturation green area, low saturation yellow area, and low saturation orange area. , A low saturation purple region, a high saturation blue region, and a high saturation yellow region.
  • the condition (5K) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high-saturation green region, and one of the radiation angle regions different from the first region.
  • the second light irradiated to the second region of the part is included in the defined high saturation blue region.
  • the condition (5L) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high saturation yellow region, and is one of the radiation angle regions different from the first region.
  • region of a part is contained in either of each area
  • the first and second lights satisfy any one of the above conditions (5A) to (5L).
  • the illuminating device can suitably give a psychological effect of being able to concentrate without being distracted to a person who is in an environment of illumination light.
  • the control unit includes a first light that is applied to a first region that is a part of the radiation angle region, and one of the radiation angle regions that is different from the first region.
  • the second light applied to the second region of the part satisfies the following conditions (6A) to (6N) included in the first chromaticity region: Control the first and second LED light sources.
  • the condition (6A) is that the first light irradiated to a part of the first region of the radiation angle region is included in a white region defined by the following, and is one of the radiation angle regions different from the first region.
  • the second light emitted to the second region of the area is defined by the following: low saturation green region, low saturation yellow region, low saturation orange region, low saturation red region, low saturation purple region, high saturation blue It is included in each of the green region and the high saturation yellow region.
  • Condition (6B) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation blue region defined by the following and the radiation angle is different from the first region
  • the second light emitted to the second region that is part of the region is defined by the following: a white region, a low saturation blue-green region, a low saturation green region, a low saturation yellow region, a low saturation red region, a low It is included in each of the saturation purple region, the high saturation blue-green region, the high saturation green region, the high saturation yellow region, the high saturation orange region, and the high saturation red region.
  • Condition (6C) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation blue-green region defined by the following and is different from the first region.
  • the second light applied to the second region of the angular region is defined by the following low saturation yellow region, low saturation orange region, low saturation purple region, high saturation orange region, high saturation red region, and high saturation purple. It is included in any one of the areas.
  • Condition (6D) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation green region defined by the following, and the radiation angle is different from the first region
  • the second light irradiated to a part of the second region is included in any of the low saturation blue-green region, the low saturation orange region, the high saturation blue-green region, and the high saturation red region defined by the following: It is to be.
  • Condition (6E) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation yellow region defined by the following, and the radiation angle is different from the first region
  • the low light green region, the low chroma orange region, the low chroma red region, the high chroma blue region, the high chroma yellow region, and the high chroma orange region defined by It is included in one of the areas.
  • Condition (6F) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation orange region defined by the following, and the radiation angle is different from the first region
  • the low light blue area, the low chroma blue-green area, the low chroma green area, the low chroma yellow area, and the low chroma red defined by It is included in any one of the region, the low saturation purple region, the high saturation blue region, and the high saturation yellow region.
  • the second light emitted to the second region that is a part of the region is defined as follows: white region, low saturation blue region, low saturation blue-green region, low saturation green region, low saturation yellow region, low It is included in any one of the saturation orange region and the high saturation blue-green region.
  • Condition (6H) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation purple region defined by the following, and the radiation angle is different from the first region
  • the second light emitted to the second region of a part of the region is defined by the low saturation blue-green region, the low saturation yellow region, the low saturation orange region, the low saturation red region, the high saturation blue region, It is included in each of the high saturation yellow region and the high saturation red region.
  • Condition (6I) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation blue region defined by the following, and the radiation angle region different from the first region is The second light emitted to some of the second regions is included in any of the white region, the low saturation green region, the low saturation orange region, and the high saturation orange region defined by the following.
  • Condition (6J) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high saturation blue-green region defined by the following, and the radiation angle region different from the first region The second light irradiated to a part of the second region is included in the low-saturation green region defined by the following.
  • the condition (6K) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation green region defined by the following, and the radiation angle region is different from the first region.
  • the second light emitted to some of the second regions is included in the high saturation red region defined by the following.
  • the condition (6L) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation yellow region defined by the following, and the radiation angle region different from the first region is The second light emitted to some of the second regions is included in any one of the white region, the low saturation purple region, and the high saturation orange region defined by the following.
  • the condition (6M) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation orange region defined by the following, and the radiation angle region is different from the first region.
  • the second light emitted to some of the second areas is included in any one of the low saturation blue area, the low saturation blue green area, the low saturation yellow area, and the high saturation blue area defined by the following: That is.
  • Condition (6N) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation purple region defined by the following, and the radiation angle region is different from the first region.
  • the second light emitted to some of the second areas is included in the low saturation green area defined by the following.
  • the radiation angle region can be gradationally illuminated with light that induces drowsiness, and a person can sleep more asleep. It is possible to provide an easy lighting environment. Therefore, the illuminating device can suitably give a psychological effect of sleepiness to a person who is in an environment of illumination light.
  • the control unit includes a first light that is applied to a first region that is a part of the radiation angle region, and one of the radiation angle regions that is different from the first region.
  • the second light emitted to the second region of the part satisfies the following conditions (7A) to (7I) included in the first chromaticity region: Control the first and second LED light sources.
  • the condition (7A) is that the first light irradiated to a part of the first region of the radiation angle region is included in a white region defined by the following, and is one of the radiation angle regions different from the first region.
  • the second light emitted to the second region of the part is included in the high-saturation purple region defined by the following.
  • the condition (7B) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation blue-green region defined by the following and is different from the first region.
  • the second light emitted to the second region that is a part of the angle region is included in the high saturation yellow region defined by the following.
  • Condition (7C) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation red region defined by the following, and the radiation angle is different from the first region That is, the second light irradiated to the second region which is a part of the region is included in the high saturation orange region defined by the following.
  • Condition (7D) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation purple region defined by the following, and the radiation angle is different from the first region That is, the second light irradiated to the second region which is a part of the region is included in the high-saturation purple region defined by the following.
  • the condition (7E) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation green region defined by the following, and the radiation angle region is different from the first region.
  • the second light emitted to some of the second regions is included in any of the low saturation yellow region, the low saturation red region, the high saturation yellow region, and the high saturation orange region defined by the following: .
  • the condition (7F) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation yellow region defined by the following, and the radiation angle region different from the first region
  • the second light irradiated to a part of the second region is included in any one of the high saturation green region and the high saturation red region defined by the following.
  • Condition (7G) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation orange region defined by the following, and the radiation angle region is different from the first region.
  • the second light emitted to some of the second areas is included in any one of the low saturation purple area, the high saturation red area, and the high saturation purple area defined by the following.
  • the condition (7H) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation red region defined by the following, and the radiation angle region is different from the first region.
  • the second light emitted to some of the second regions is included in any of the low saturation orange region, the high saturation blue region, the high saturation green region, the high saturation yellow region, and the high saturation orange region defined by the following. It is.
  • Condition (7I) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation purple region defined by the following, and the radiation angle region is different from the first region.
  • the second light emitted to some of the second areas is defined by the following: low saturation blue area, low saturation blue-green area, low saturation yellow area, low saturation purple area, high saturation blue area, high saturation yellow It is included in any one of the area, the high saturation orange area, and the high saturation red area.
  • the first and second lights satisfy any one of the above conditions (7A) to (7I), so that the radiation angle area can be gradationally illuminated with the light that wakes up sleepiness, thereby reducing human sleepiness. It can provide a lighting environment that can be awakened and awakened. Therefore, the illuminating device can suitably give a psychological effect of awakening sleepiness to a person in an environment of illumination light.
  • each area is defined as follows.
  • White areas are coordinate points R_1 (0.268, 0.482), R-OR_1 (0.262, 0.485), OR_1 (0.257, 0.489), OR of (u ′, v ′).
  • -Y_1 (0.233, 0.492), Y_1 (0.217, 0.494), Y-G_1 (0.209, 0.495), G_1 (0.179, 0.497), G-BG_1 (0.182, 0.476), BG_1 (0.186, 0.455), BG-B_1 (0.188, 0.445), B_1 (0.201, 0.397), BP_1 (0 .219, 0.413), P_1 (0.237, 0.428), and PR_1 (0.252, 0.455) are inner regions surrounded by a closed loop line.
  • the low-saturation red areas are represented by coordinate points R-OR_3 (0.367, 0.509), R_3 (0.382, 0.498), and PR_3 (0.336, 0) of (u ′, v ′). .417), P-R_1 (0.252, 0.455), R_1 (0.268, 0.482), and R-OR_1 (0.262, 0.485) are surrounded by a closed loop line. The inner area.
  • the low-saturation orange region includes coordinate points OR-Y_3 (0.279, 0.530), OR_3 (0.351, 0.521), R-OR_3 (0.367, 0) of (u ′, v ′). .509), R-OR_1 (0.262, 0.485), OR_1 (0.257, 0.489), and OR-Y_1 (0.233, 0.492) are surrounded by a closed loop line. The inner area.
  • the low saturation yellow area is represented by the coordinate points YG_3 (0.206, 0.538), Y_3 (0.231, 0.536), OR-Y_3 (0.279, 0) of (u ′, v ′). .530), OR-Y_1 (0.233, 0.492), Y_1 (0.217, 0.494), and YG_1 (0.209, 0.495) are surrounded by a closed loop line. The inner area.
  • the low-saturation green areas are coordinate points G-BG_3 (0.126, 0.481), G_3 (0.116, 0.544), Y-G_3 (0.206, 0) of (u ′, v ′). .538), YG_1 (0.209, 0.495), G_1 (0.179, 0.497), and G-BG_1 (0.182, 0.476) are surrounded by a closed loop line. The inner area.
  • the low-saturation blue-green regions are coordinate points BG-B_3 (0.144, 0.389), BG_3 (0.136, 0.417), G-BG_3 (0.126, 0.481), G-BG_1 (0.182, 0.476), BG_1 (0.186, 0.455), and BG-B_1 (0.188, 0.445). This is the inner area.
  • the low-saturation blue region is represented by coordinate points BP_3 (0.236, 0.291), B_3 (0.182, 0.245), BG-B_3 (0.144, 0) of (u ′, v ′). 389), BG-B_1 (0.188, 0.445), B_1 (0.201, 0.397), and BP_1 (0.219, 0.413) are surrounded by a closed loop line. The inner area.
  • the low-saturation purple areas are coordinate points PR_3 (0.336, 0.417), P_3 (0.291, 0.336), BP_3 (0.236, 0) of (u ′, v ′). .291), BP_1 (0.219, 0.413), P_1 (0.237, 0.428), and PR_1 (0.252, 0.455) are surrounded by a closed loop line. The inner area.
  • the high-saturation red region includes coordinate points R-OR_4 (0.419, 0.521), R_4 (0.440, 0.506), and PR-4 (0.379, 0.398) of (u ′, v ′). ), P—R — 3 (0.336, 0.417), R — 3 (0.382, 0.498), R—OR — 3 (0.367, 0.509) It is.
  • the high-saturation orange areas are represented by coordinate points OR-Y_4 (0.302, 0.549), OR_4 (0.398, 0.537), R-OR_4 (0.419, 0.521) of (u ′, v ′). ), R-OR — 3 (0.367, 0.509), OR — 3 (0.351, 0.521), OR-Y — 3 (0.279, 0.530) It is.
  • the high saturation yellow area is represented by the coordinate points YG_4 (0.204, 0.559), Y_4 (0.237, 0.557), OR-Y_4 (0.302, 0.549) of (u ′, v ′). ), OR-Y — 3 (0.279, 0.530), Y — 3 (0.231, 0.536), YG — 3 (0.206, 0.538) It is.
  • the high-saturation green region includes coordinate points G-BG_4 (0.098, 0.483), G_4 (0.085, 0.568), Y-G_4 (0.204, 0.559) of (u ′, v ′). ), YG_3 (0.206, 0.538), G_3 (0.116, 0.544), G-BG_3 (0.126, 0.481) and the inner region surrounded by the closed loop line connecting the points It is.
  • the high-saturation blue-green region includes coordinate points BG-B_4 (0.122, 0.361), BG_4 (0.112, 0.398), G-BG_4 (0.098, 0. 483), G-BG_3 (0.126, 0.481), BG_3 (0.136, 0.417), and BG-B_3 (0.144, 0.389). It is an area.
  • the high-saturation blue areas are coordinate points BP_4 (0.245, 0.230), B_4 (0.173, 0.169), BG-B_4 (0.122, 0.361) of (u ′, v ′). ), BG-B_3 (0.144, 0.389), B_3 (0.182, 0.245), BP_3 (0.236, 0.291), the inner region surrounded by the closed loop line connecting the points It is.
  • the high-saturation purple region is represented by coordinate points PR_4 (0.379, 0.398), P_4 (0.317, 0.291), and BP_4 (0.245, 0.230) of (u ′, v ′). ), BP_3 (0.236, 0.291), P_3 (0.291, 0.336), PR_3 (0.336, 0.417), and the inner region surrounded by the closed loop line connecting the points It is.
  • the illumination method includes a first LED light source and a second LED light source capable of emitting a plurality of colors of light, which are first and second lights of different colors, and a part of the first light. And a part of the second term are emitted so as to overlap each other in a radiation angle region, and the first and second lights irradiated on the radiation angle region are represented in a CIE 1976 u′v ′ chromaticity diagram.
  • BP_1 (0.219, 0.413), P_1 (0.237, 0.428), and PR_1 (0.252, 0.455) are connected to the lower limit boundary.
  • the first and second LED light sources are emitted so as to be included in a first chromaticity region between the closed loop line.
  • the illumination method includes a control step of controlling the first and second LED light sources capable of emitting a plurality of colors of light so as to emit the first and second lights of different colors, respectively. And an overlapping step of overlapping a part of the first light emitted from the first LED light source and a part of the second light emitted from the second LED light source in a radiation angle region.
  • the chromaticity region of light that is the maximum saturation of the first and second lights irradiated on the radiation angle region is represented by (u ′, v ′) in the CIE 1976 u′v ′ chromaticity diagram.
  • the first and second lights emitted from the first and second LED light sources in different colors are emitted so that each part thereof overlaps each other in the radiation angle region. Can gradationally illuminate the radiation angle region.
  • the said illumination method can carry out gradation illumination of the said radiation
  • an illumination device and an illumination method can be provided.

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Abstract

This illumination device comprises: a light source unit having first and second LED light sources, which are capable of radiating light with a plurality of colors, said light source unit irradiating first light from the first LED light source and second light from the second LED light source in such a manner that a portion of the first light and a portion of the second light overlap with each other in a radiation angle region; and a control unit (2) for controlling the first and second LED light sources so as to radiate the first and second light with different colors from one another. The control unit controls the first and second LED light sources so that the color domain of the light giving the maximum saturation for the first and second light radiated in the radiation angle region is contained in a color region that provides a predetermined psychological effect.

Description

照明装置および照明方法Illumination device and illumination method
　本発明は、いわゆるグラデーション照明に好適に利用される照明装置および照明方法に関する。 The present invention relates to an illumination device and an illumination method that are preferably used for so-called gradation illumination.
　近年、明るさや色彩を連続的に変化させて放射角度領域を照明するグラデーション照明が注目されている。このグラデーション照明は、例えば、特許文献１に開示された照明装置によって実現できる。 In recent years, gradation lighting that illuminates the radiation angle region by continuously changing the brightness and color has attracted attention. This gradation illumination can be realized by, for example, the illumination device disclosed in Patent Document 1.
　この特許文献１に開示された照明装置は、発光ダイオード等からなる光源を備えた照明装置であって、該光源から出射した光を、視角範囲内にて、自然光環境を再現するために複数の照射領域を形成し、該複数の照射領域の少なくともいずれか一方の大きさを可変する可変手段を備え、上記複数の照射領域は、一部が重なり合った中間領域を備え、該中間領域は、該中間領域を形成する上記各照射領域の光が混合し、混合色を有してなるものである。 The illuminating device disclosed in Patent Document 1 is an illuminating device including a light source composed of a light emitting diode or the like, and a plurality of light emitted from the light source is reproduced in order to reproduce a natural light environment within a viewing angle range. An irradiation area is formed, and variable means for changing the size of at least one of the plurality of irradiation areas is provided. The plurality of irradiation areas include an intermediate area that partially overlaps the intermediate area. The light of each said irradiation area | region which forms an intermediate | middle area | region mixes, and has a mixed color.
　ところで、前記特許文献１に開示された照明装置は、自然光環境の再現を目的に照明光を生成し、リラックス効果を向上させるものである。したがって、前記特許文献１に開示された照明装置は、自然光しか生成できず、人にリラックス効果しか与えることができない。このため、前記特許文献１に開示された照明装置は、その照明光の環境下に居る人に様々な心理効果を与えることができるように構成されていない。 Incidentally, the illumination device disclosed in Patent Document 1 generates illumination light for the purpose of reproducing a natural light environment and improves the relaxation effect. Therefore, the lighting device disclosed in Patent Document 1 can generate only natural light and can only give a relaxing effect to a person. For this reason, the illuminating device disclosed by the said patent document 1 is not comprised so that various psychological effects can be given to the person who exists in the environment of the illumination light.
特開２０１０－１５７４１８号公報JP 2010-157418 A
　本発明は、上述の事情に鑑みて為された発明であり、その目的は、照明光の環境下に居る人に所定の心理効果を好適に与えることができる照明装置および照明方法を提供することである。 The present invention has been made in view of the above-described circumstances, and an object thereof is to provide an illumination device and an illumination method capable of suitably giving a predetermined psychological effect to a person in an environment of illumination light. It is.
　本発明の照明装置は、複数の色の光を放射可能な第１および第２ＬＥＤ光源を有し、第１ＬＥＤ光源から放射された第１光の一部と第２ＬＥＤ光源から放射された第２光の一部とが放射角度領域で互いに重なるように第１および第２光を放射する光源部と、互いに異なる色で第１および第２光を放射するように第１および第２ＬＥＤ光源を制御する制御部２とを備え、制御部は、放射角度領域に照射された第１および第２光の最大彩度となる光の色度域が、予め設定された所定の心理効果を与える色度領域に含まれるように、第１および第２ＬＥＤ光源を制御する。したがって、本発明にかかる照明装置および照明方法は、照明光の環境下に居る人に所定の心理効果を好適に与えることができる。 The illumination device of the present invention includes first and second LED light sources that can emit light of a plurality of colors, and a part of the first light emitted from the first LED light source and the second light emitted from the second LED light source. The first and second LED light sources are controlled so as to emit the first and second lights with different colors from each other and the light source unit that emits the first and second lights so that a part of the LED overlaps with each other in the radiation angle region A chromaticity region in which the chromaticity region of the light that is the maximum saturation of the first and second lights irradiated to the radiation angle region gives a preset predetermined psychological effect. To control the first and second LED light sources. Therefore, the lighting device and the lighting method according to the present invention can suitably give a predetermined psychological effect to a person who is in an environment of illumination light.
　上記並びにその他の本発明の目的、特徴及び利点は、以下の詳細な記載と添付図面から明らかになるであろう。 The above and other objects, features and advantages of the present invention will become apparent from the following detailed description and the accompanying drawings.
実施形態における第１態様の照明装置の電気的な構成を示すブロック図である。It is a block diagram which shows the electric constitution of the illuminating device of the 1st aspect in embodiment. 前記第１態様の照明装置における光源部の電気的な構成を示す回路図である。It is a circuit diagram which shows the electrical structure of the light source part in the illuminating device of a said 1st aspect. 前記第１態様の照明装置の外観を示す斜視図である。It is a perspective view which shows the external appearance of the illuminating device of a said 1st aspect. 前記第１態様の照明装置における光源部の構造的な構成を示す断面図である。It is sectional drawing which shows the structural structure of the light source part in the illuminating device of a said 1st aspect. 前記光源部のＬＥＤ光源の構成を示す平面図である。It is a top view which shows the structure of the LED light source of the said light source part. 前記第１態様の照明装置を居室に適用した場合の一例を説明するための図である。It is a figure for demonstrating an example at the time of applying the illuminating device of a said 1st aspect to a living room. 前記第１態様の照明装置における動作を示すフローチャートである。It is a flowchart which shows the operation | movement in the illuminating device of a said 1st aspect. 範囲外の指定色を範囲内へ変換する手法を説明するための図である。It is a figure for demonstrating the method to convert the designated color outside a range into the range. 実験室内の様子を説明するための図である。It is a figure for demonstrating the mode in a laboratory. ＣＩＥ１９７６ｕ’ｖ’色度図上における実験に用いた照明装置ＬＤの色光の範囲および実験に用いられた色光条件を示す図である。It is a figure which shows the range of the color light of the illuminating device LD used for experiment on a CIE1976u'v 'chromaticity diagram, and the color light condition used for experiment. 受け入れられる、という心理効果に関する実験結果を示す図である。It is a figure which shows the experimental result regarding the psychological effect of being accepted. 快適感、という心理効果に関する実験結果を示す図である。It is a figure which shows the experimental result regarding the psychological effect called a feeling of comfort. くつろぎ感、という心理効果に関する実験結果を示す図である。It is a figure which shows the experimental result regarding the psychological effect of a feeling of relaxation. すっきり感、という心理効果に関する実験結果を示す図である。It is a figure which shows the experimental result regarding the psychological effect of a refreshing feeling. 集中できる、という心理効果に関する実験結果を示す図である。It is a figure which shows the experimental result regarding the psychological effect that it can concentrate. 眠気、という心理効果に関する実験結果を示す図である。It is a figure which shows the experimental result regarding the psychological effect called sleepiness. 眠気を覚ます、という心理効果に関する実験結果を示す図である。It is a figure which shows the experimental result regarding the psychological effect of waking up sleepiness. ｕ’ｖ’色度図において、白色領域、低彩度青領域ないし高彩度紫領域の各領域を示すための図である。In the u′v ′ chromaticity diagram, each of a white region, a low saturation blue region, and a high saturation purple region is illustrated. 実施形態における第２態様の照明装置の外観を示す斜視図である。It is a perspective view which shows the external appearance of the illuminating device of the 2nd aspect in embodiment. 前記第２態様の照明装置の構成を示す断面斜視図である。It is a cross-sectional perspective view which shows the structure of the illuminating device of a said 2nd aspect. 前記第２態様の照明装置の構成を示す一部断面図である。It is a partial cross section figure which shows the structure of the illuminating device of a said 2nd aspect. 前記第２態様の照明装置を居室に適用した場合の一例を説明するための図である。It is a figure for demonstrating an example at the time of applying the illuminating device of a said 2nd aspect to a living room. 実施形態における第３態様の照明装置の外観を示す斜視図である。It is a perspective view which shows the external appearance of the illuminating device of the 3rd aspect in embodiment. 前記第３態様の照明装置の構成を示す側面図である。It is a side view which shows the structure of the illuminating device of a said 3rd aspect.
　以下、本発明にかかる実施の一形態を図面に基づいて説明する。なお、各図において同一の符号を付した構成は、同一の構成であることを示し、適宜、その説明を省略する。本明細書において、総称する場合には添え字を省略した参照符号で示し、個別の構成を指す場合には添え字を付した参照符号で示す。 Hereinafter, an embodiment according to the present invention will be described with reference to the drawings. In addition, the structure which attached | subjected the same code | symbol in each figure shows that it is the same structure, The description is abbreviate | omitted suitably. In this specification, when referring generically, it shows with the reference symbol which abbreviate | omitted the suffix, and when referring to an individual structure, it shows with the reference symbol which attached the suffix.
　（実施形態）
　図１は、実施形態における第１態様の照明装置の電気的な構成を示すブロック図である。図２は、前記第１態様の照明装置における光源部の電気的な構成を示す回路図である。図３は、前記第１態様の照明装置の外観を示す斜視図である。図４は、前記第１態様の照明装置における光源部の構造的な構成を示す断面図である。図５は、前記光源部のＬＥＤ光源の構成を示す平面図である。図６は、前記第１態様の照明装置を居室に適用した場合の一例を説明するための図である。 (Embodiment)
FIG. 1 is a block diagram illustrating an electrical configuration of the illumination device according to the first aspect of the embodiment. FIG. 2 is a circuit diagram showing an electrical configuration of a light source unit in the illumination device of the first aspect. FIG. 3 is a perspective view showing an appearance of the illumination device of the first aspect. FIG. 4 is a cross-sectional view showing a structural configuration of a light source unit in the illumination device of the first aspect. FIG. 5 is a plan view showing a configuration of an LED light source of the light source unit. FIG. 6 is a diagram for explaining an example when the lighting device of the first aspect is applied to a living room.
　実施形態における照明装置ＬＤは、照明光環境下に居る人に所望の心理効果を与えるグラデーション照明を行うための装置である。実施形態における照明装置ＬＤの一例として、以下に、第１ないし第３態様の照明装置ＬＤａ～ＬＤｃについて説明する。 The illumination device LD in the embodiment is a device for performing gradation illumination that gives a desired psychological effect to a person in an illumination light environment. As an example of the illumination device LD in the embodiment, the illumination devices LDa to LDc of the first to third aspects will be described below.
　まず、第１態様の照明装置ＬＤａは、図１ないし図６に示すように、光源部１と、制御部２とを備え、これら図１ないし図６に示す例では、入力部３と、電源部４とをさらに備える。 First, as shown in FIGS. 1 to 6, the illumination device LDa of the first aspect includes a light source unit 1 and a control unit 2. In the examples illustrated in FIGS. 1 to 6, the input unit 3, the power source The unit 4 is further provided.
　電源部４は、外部電源５、光源部１、制御部２および入力部３それぞれに接続され、商用電源等の外部電源５から電力の供給を受け、前記電力から光源部１、制御部２および入力部３を稼働するための所定の電力を生成する回路である。例えば、電源部４は、外部電源から給電された商用交流電力を直流電力に整流する整流回路と、前記整流回路の出力を平滑する平滑回路とを備え、また必要に応じて、光源部１、制御部２および入力部の各稼働電圧に応じた電圧値に変換する電圧変換回路（コンバータ）を備える。電源部４で生成された直流電力は、光源部１、制御部２および入力部３に供給される。 The power supply unit 4 is connected to the external power supply 5, the light source unit 1, the control unit 2, and the input unit 3, and receives power supply from the external power supply 5 such as a commercial power supply. It is a circuit that generates predetermined power for operating the input unit 3. For example, the power source unit 4 includes a rectifier circuit that rectifies commercial AC power fed from an external power source into DC power, and a smoothing circuit that smoothes the output of the rectifier circuit. A voltage conversion circuit (converter) that converts voltage values corresponding to the operating voltages of the control unit 2 and the input unit is provided. The DC power generated by the power supply unit 4 is supplied to the light source unit 1, the control unit 2, and the input unit 3.
　入力部３は、制御部２に接続され、照明装置ＬＤａの制御部２に所定の指示等を入力するための回路である。入力部３は、例えば、複数のスイッチ素子を備えて構成され、各スイッチ素子には、照明装置ＬＤａのオンオフを行うための電源スイッチ素子や、所定の心理効果を与えるグラデーション照明を行うための１または複数の選択スイッチ素子等が含まれる。この選択スイッチ素子の一つには、例えば、快適感を与えるグラデーション照明を照明装置ＬＤａに実行させる指示が割り付けられ、また他の一つには、例えば、すっきり感を与えるグラデーション照明を照明装置ＬＤａに実行させる指示が割り付けられる。 The input unit 3 is connected to the control unit 2 and is a circuit for inputting a predetermined instruction or the like to the control unit 2 of the illumination device LDa. The input unit 3 includes, for example, a plurality of switch elements, and each switch element includes a power switch element for turning on and off the lighting device LDa and 1 for performing gradation illumination that gives a predetermined psychological effect. Alternatively, a plurality of selection switch elements and the like are included. One of the selection switch elements is assigned, for example, an instruction to cause the illumination device LDa to perform gradation illumination that gives a comfortable feeling. The instruction to be executed is assigned.
　また例えば、入力部３は、電源スイッチ素子およびタッチパネルを備え、前記タッチパネルを用いて所定の入力内容が入力されるように構成されても良い。タッチパネルは、例えばＬＣＤ（液晶ディスプレイ）および有機ＥＬディスプレイ等の表示装置と、前記表示装置の表示面に貼付された例えば抵抗膜方式や静電容量方式等の操作位置を検出して入力する位置入力装置とを備え、表示装置に入力可能な１または複数の入力内容の候補が表示され、ユーザが、入力したい入力内容を表示した表示位置を触れると、位置入力装置によってその位置が検出され、検出された位置に表示された表示内容がユーザの操作入力内容として照明装置ＬＤａに入力される。このようなタッチパネルでは、ユーザは、入力操作を直感的に理解し易いので、ユーザにとって取り扱い易い照明装置ＬＤａが提供される。 Further, for example, the input unit 3 may include a power switch element and a touch panel, and may be configured such that predetermined input content is input using the touch panel. The touch panel is a position input for detecting and inputting a display device such as an LCD (Liquid Crystal Display) and an organic EL display and an operation position such as a resistance film method or a capacitance method attached to the display surface of the display device. When the user touches the display position where the input content desired to be input is displayed, the position is detected by the position input device, and the detection is performed. The display content displayed at the set position is input to the illumination device LDa as the operation input content of the user. In such a touch panel, since the user can easily understand the input operation intuitively, the lighting device LDa that is easy for the user to handle is provided.
　また例えば、入力部３は、電源スイッチ素子と、いわゆるスマートフォンやタブレット型コンピュータ等と通信する通信回路とを備え、前記スマートフォンやタブレット型コンピュータ等にインストールされた所定のアプリケーションソフトウェアを用いて所定の入力内容が前記スマートフォンやタブレット型コンピュータ等を介して入力されるように構成されても良い。 Further, for example, the input unit 3 includes a power switch element and a communication circuit that communicates with a so-called smartphone or tablet computer, and performs predetermined input using predetermined application software installed in the smartphone or tablet computer. The contents may be configured to be input via the smartphone, the tablet computer, or the like.
　このようなタッチパネルや通信回路を備える場合では、色を選択して入力できる。色の選択方法として、例えば、ＣＩＥ（国際照明委員会）のＲＧＢ表色系におけるＲＧＢ値をそれぞれ指定して色の混合比率を指定する第１色選択方法や、また例えば、色相、彩度および明度等を指定して、色の混合比率と明るさとを同時に指定する第２色選択方法や、また例えば、サンプルとしての色テーブルや画像等から選択することで色を指定する第３色選択方法等が用いることができる。色は、表示装置に表示されたカラーバーを用いて指定し、入力できる。なお、色の選択方法は、サンプルとしての色テーブルや画像等が表示され、その中から自動的に選択されて色が指定される第４色選択方法であってもよい。 If you have such a touch panel or communication circuit, you can select and input colors. As a color selection method, for example, a first color selection method in which RGB values in the RGB color system of the CIE (International Lighting Commission) are specified to specify a color mixing ratio, and for example, hue, saturation, and A second color selection method for designating lightness and the like, and simultaneously designating a color mixture ratio and brightness, or a third color selection method for designating a color by selecting from a color table or image as a sample, for example Etc. can be used. The color can be specified and input using a color bar displayed on the display device. Note that the color selection method may be a fourth color selection method in which a color table, an image, or the like as a sample is displayed, and the color is automatically selected and designated.
　光源部１は、複数の色の光を放射可能な第１および第２ＬＥＤ光源１０－１、１０－２を有し、第１ＬＥＤ光源１０－１から放射された第１光の一部と第２ＬＥＤ光源１０－２から放射された第２光の一部とが放射角度領域で互いに重なるように前記第１および第２光を放射するものである。このような光源部１は、第１光の一部と第２光の一部とを放射角度領域で互いに重ねるので、第１光による色相Ａの領域から、色相Ａと色相Ｂとの中間色の中間領域を経て、第２光による色相Ｂの領域に至る、明るさや色彩を連続的に変化させて照明するグラデーション照明で被照明面を照明できる。 The light source unit 1 includes first and second LED light sources 10-1 and 10-2 that can emit light of a plurality of colors. A part of the first light emitted from the first LED light source 10-1 and the second LED The first light and the second light are emitted so that a part of the second light emitted from the light source 10-2 overlaps with each other in the radiation angle region. In such a light source unit 1, a part of the first light and a part of the second light are overlapped with each other in the radiation angle region. The surface to be illuminated can be illuminated with gradation illumination in which the brightness and color are continuously changed to reach the hue B region by the second light through the intermediate region.
　これら第１および第２ＬＥＤ光源ＬＥＤ１０－１、１０－２それぞれは、互いに同一の構成であるため、添え字を省略し、纏めて説明する。ＬＥＤ光源１０は、昼白光を放射する昼白色ＬＥＤ１１と、電球色光を放射する電球色ＬＥＤ１２と、ＲＧＢＬＥＤ１３とを備える。ＬＥＤ光源１０は、これら昼白色ＬＥＤ１１、電球色ＬＥＤ１２およびＲＧＢＬＥＤ１３を１つずつ備えて構成されても良いが、より広い放射角度領域をグラデーション照明するために、本実施形態では、複数の昼白色ＬＥＤ１１、複数の電球色ＬＥＤ１２および複数のＲＧＢＬＥＤ１３を備えている。これら複数の昼白色ＬＥＤ１１、複数の電球色ＬＥＤ１２および複数のＲＧＢＬＥＤ１３は、図５に示すように、配線パターンを持つ一方向に長尺な板状のＬＥＤ基板１４上に、前記一方向に沿って並設される。これら複数の昼白色ＬＥＤ１１、複数の電球色ＬＥＤ１２および複数のＲＧＢＬＥＤ１３は、例えば、昼白色ＬＥＤ１１、ＲＧＢＬＥＤ１３、電球色ＬＥＤ１２およびＲＧＢＬＥＤ１３を一組として複数組がＬＥＤ基板１４上に並設されている。 Since each of the first and second LED light sources LED 10-1 and 10-2 has the same configuration, the subscripts are omitted and are described collectively. The LED light source 10 includes a day white LED 11 that emits day white light, a light bulb color LED 12 that emits light bulb color light, and an RGB LED 13. The LED light source 10 may be configured to include each of the daylight white LEDs 11, the light bulb color LEDs 12, and the RGB LEDs 13 one by one. However, in this embodiment, a plurality of daylight white LEDs 11 are used to perform gradation illumination over a wider radiation angle region. A plurality of light bulb color LEDs 12 and a plurality of RGB LEDs 13 are provided. As shown in FIG. 5, the plurality of daylight white LEDs 11, the plurality of light bulb color LEDs 12, and the plurality of RGB LEDs 13 are arranged along the one direction on a plate-like LED substrate 14 having a wiring pattern and extending in one direction. It is installed side by side. The plurality of daylight white LEDs 11, the plurality of light bulb color LEDs 12 and the plurality of RGB LEDs 13 are arranged in parallel on the LED substrate 14, for example, with the daylight white LED 11, RGBLED 13, light bulb color LED 12 and RGBLED 13 as one set.
　昼白色ＬＥＤ１１は、例えば、Ｂ光ＬＥＤ素子と、前記Ｂ光ＬＥＤから放射されたＢ光の一部で励起され補色の黄色を放射する黄色蛍光体とを備え、これらを調整して色温度を約５０００Ｋに調整することで昼白色光を放射するものである。また例えば、昼白色ＬＥＤ１１は、近紫外光または紫光を発光する紫光ＬＥＤ素子と、前記紫光ＬＥＤから放射された光の一部で励起され赤色、緑色および青色をそれぞれ放射する赤色蛍光体、緑色蛍光体および青色蛍光体の各蛍光体とを備え、これらを調整して色温度を約５０００Ｋに調整することで昼白色光を放射するものである。昼白色ＬＥＤ１１には、電源部４から直流電力が供給され、制御部２の後述の第１電流制御回路２３－１による電流値の制御によって昼白色光の光量が調整される。 The lunch white LED 11 includes, for example, a B light LED element and a yellow phosphor that emits a complementary yellow color when excited by a part of the B light emitted from the B light LED. By adjusting to about 5000K, daylight white light is emitted. Further, for example, the daylight white LED 11 includes a violet LED element that emits near-ultraviolet light or violet light, a red phosphor that emits red, green, and blue when excited by part of the light emitted from the violet light LED, and green fluorescence. Body and blue phosphors, and adjusting them to adjust the color temperature to about 5000 K, thereby emitting daylight white light. The daylight white LED 11 is supplied with DC power from the power supply unit 4, and the amount of daylight white light is adjusted by controlling a current value by a first current control circuit 23-1 to be described later of the control unit 2.
　電球色ＬＥＤ１２も、昼白色ＬＥＤ１１と同様に、例えば、Ｂ光ＬＥＤ素子と、黄色蛍光体とを備え、これらを調整して色温度を約３０００Ｋに調整することで電球色光を放射するものである。また例えば、電球色ＬＥＤ１２は、紫光ＬＥＤ素子と、赤色蛍光体、緑色蛍光体および青色蛍光体の各蛍光体とを備え、これらを調整して色温度を約３０００Ｋに調整することで電球色光を放射するものである。電球色ＬＥＤ１２には、電源部４から直流電力が供給され、制御部２の後述の第２電流制御回路２３－２による電流値の制御によって電球色光の光量が調整される。 Similarly to the daylight white LED 11, the light bulb color LED 12 includes, for example, a B light LED element and a yellow phosphor, and adjusts the color temperature to about 3000K to radiate light bulb color light. . Further, for example, the light bulb color LED 12 includes a purple LED element and red phosphor, green phosphor, and blue phosphor, and adjusts the color temperature to about 3000K by adjusting them to produce light bulb color light. It radiates. The bulb color LED 12 is supplied with DC power from the power supply unit 4, and the light amount of the bulb color light is adjusted by controlling a current value by a second current control circuit 23-2 described later of the control unit 2.
　ＲＧＢＬＥＤ１３は、例えば、Ｒ光ＬＥＤ素子と、Ｇ光ＬＥＤ素子と、Ｂ光ＬＥＤ素子とを備え、これらを調整して各色光を放射するものである。すなわち、ＲＧＢＬＥＤ１３は、複数の色の光を放射可能なＬＥＤ光源である。ＲＧＢＬＥＤ１３のＲ光ＬＥＤ素子、Ｇ光ＬＥＤ素子およびＢ光ＬＥＤ素子には、電源部４から個別に直流電力がそれぞれ供給され、制御部２の後述の第３電流制御回路２３－３による各電流値の個別の制御によって各色光の光量が調整される。 The RGBLED 13 includes, for example, an R light LED element, a G light LED element, and a B light LED element, and adjusts these to emit each color light. That is, the RGBLED 13 is an LED light source that can emit light of a plurality of colors. The R light LED element, the G light LED element, and the B light LED element of the RGBLED 13 are individually supplied with direct current power from the power supply unit 4, and each current value by a third current control circuit 23-3 described later of the control unit 2 The amount of light of each color is adjusted by individual control.
　このような光源部１の一構造例について、より具体的に説明すると、図４に示すように、光源部１は、一方向に長尺な略角柱形状の例えばアルミニウム製の本体１７ａを備える。本体１７ａには、一稜線から内部に向けて形成された、前記一方向に沿って長尺な凹所１７１ａが形成されている。凹所１７１ａは、前記一稜線から内部に向かう方向の途中で２つに分岐しており、２個の第１および第２凹所１７１ａ－１、１７１ａ－２を備える。第１凹所１７１ａ－１の両側面は、それぞれ、第１凹所１７１ａ－１の中央から外側に向けて膨らむ曲面形状であり、所望のグラデーション照明を阻害しない範囲で、若干、光散乱性を有していても良く、その第１底面には、例えばアルミニウム製の放熱板１５－１を介して第１ＬＥＤ基板１４－１が配設されている。第１ＬＥＤ基板１４－１上には、上述した複数の昼白色ＬＥＤ１１－１、複数の電球色ＬＥＤ１２－１および複数のＲＧＢＬＥＤ１３－１が前記一方向に沿って並設されている。すなわち、第１凹所１７１ａ－１の第１底面には、第１ＬＥＤ光源１０－１が配設されている。同様に、第２凹所１７１ａ－２の両側面は、それぞれ、第２凹所１７１ａ－２の中央から外側に向けて膨らむ曲面形状であり、所望のグラデーション照明を阻害しない範囲で、若干、光散乱性を有していても良く、その第２底面には、例えばアルミニウム製の放熱板１５－２を介して第２ＬＥＤ基板１４－２が配設されている。第２ＬＥＤ基板１４－２上には、上述した複数の昼白色ＬＥＤ１１－２、複数の電球色ＬＥＤ１２－２および複数のＲＧＢＬＥＤ１３－２が前記一方向に沿って並設されている。すなわち、第２凹所１７１ａ－２の第２底面には、第２ＬＥＤ光源１０－２が配設されている。これら第１ＬＥＤ光源１０－１と第２ＬＥＤ光源１０－２とは、第１ＬＥＤ光源１０－１の第１光軸ＡＸ１と第２ＬＥＤ光源１０－２の第２光軸ＡＸ２とが互いに交差するように、第１および第２凹所１７１ａ－１、１７１ａ－２それぞれに配置されている。例えば、第１凹所１７１ａ－１の第１底面と第２凹所１７１ａ－２の第２底面とは、それらの各延長面で互いに交差するように、形成されている。第１ＬＥＤ光源１０－１の第１光軸ＡＸ１は、前記一方向に沿って並設された複数の昼白色ＬＥＤ１１－１、複数の電球色ＬＥＤ１２－１および複数のＲＧＢＬＥＤ１３－１の各放射面（発光面）によって形成された第１平面の第１法線方向である。第２ＬＥＤ光源１０－２の第２光軸ＡＸ１は、前記一方向に沿って並設された複数の昼白色ＬＥＤ１１－２、複数の電球色ＬＥＤ１２－２および複数のＲＧＢＬＥＤ１３－２の各放射面（発光面）によって形成された第２平面の第２法線方向である。このように第１光軸ＡＸ１と第２光軸ＡＸ２とを互いに交差させることで、照明装置の発光窓であるカバー部材１６ａの位置で、第１ＬＥＤ光源１０－１からの光束と第２ＬＥＤ光源１０－２からの光束とを重ねることができる発光窓を小面積化できる。すなわち、照明装置全体をコンパクトに構成できる。そして、光源部１から所定の距離だけ離れた放射角度領域では、第１光の一部と第２光の一部とが互いに重なり、被照射面でグラデーション照明が実現される。なお、被照射面上の各点は、光源部１から等距離であっても良く、また光源部１から必ずしも等距離である必要はなく光源部１から距離が変化しても良い。そして、本体１７ａにおける凹所１７１ａの開口近傍には、前記一方向に沿って一対の溝が形成されており、これら一対の溝それぞれに、前記一方向に沿って長尺な湾曲した板状のカバー部材１６ａの両端部が嵌め込まれ、凹所１７１ａの開口がカバー部材１６ａによって閉塞されている。カバー部材１６ａは、第１ＬＥＤ光源１０－１から放射される第１光および第２ＬＥＤ光源１０－２から放射される第２光に対し、透光性を有する材料で形成されている。なお、カバー部材１６ａは、所望のグラデーション照明を阻害しない範囲で、若干、光散乱性を有していても良い。 More specifically, an example of the structure of such a light source unit 1 will be described. As shown in FIG. 4, the light source unit 1 includes a main body 17a made of, for example, aluminum having a substantially prismatic shape elongated in one direction. In the main body 17a, a long recess 171a is formed along the one direction formed from one ridge line toward the inside. The recess 171a branches into two in the middle from the one ridge line toward the inside, and includes two first and second recesses 171a-1 and 171a-2. Both side surfaces of the first recess 171a-1 are curved surfaces that swell outward from the center of the first recess 171a-1, and have a slight light scattering property within a range that does not hinder the desired gradation illumination. The first LED substrate 14-1 may be disposed on the first bottom surface of the first LED substrate 14-1 via, for example, an aluminum heat sink 15-1. On the first LED substrate 14-1, the plurality of daylight white LEDs 11-1, the plurality of light bulb color LEDs 12-1, and the plurality of RGB LEDs 13-1 are arranged in parallel along the one direction. That is, the first LED light source 10-1 is disposed on the first bottom surface of the first recess 171a-1. Similarly, both side surfaces of the second recess 171a-2 each have a curved shape that swells outward from the center of the second recess 171a-2, and is slightly light as long as the desired gradation illumination is not hindered. The second LED substrate 14-2 may be disposed on the second bottom surface of the second LED substrate 14-2 via, for example, an aluminum heat sink 15-2. On the second LED board 14-2, the plurality of daylight white LEDs 11-2, the plurality of light bulb color LEDs 12-2, and the plurality of RGB LEDs 13-2 are arranged in parallel along the one direction. That is, the second LED light source 10-2 is disposed on the second bottom surface of the second recess 171a-2. The first LED light source 10-1 and the second LED light source 10-2 are arranged so that the first optical axis AX1 of the first LED light source 10-1 and the second optical axis AX2 of the second LED light source 10-2 intersect each other. The first and second recesses 171a-1 and 171a-2 are disposed respectively. For example, the first bottom surface of the first recess 171a-1 and the second bottom surface of the second recess 171a-2 are formed so as to intersect each other at their extended surfaces. The first optical axis AX1 of the first LED light source 10-1 is a radiation surface of each of the plurality of daylight white LEDs 11-1, the plurality of bulb-color LEDs 12-1 and the plurality of RGB LEDs 13-1 arranged in parallel along the one direction ( The first normal direction of the first plane formed by the light emitting surface. The second optical axis AX1 of the second LED light source 10-2 is a radiation surface of each of the plurality of daylight white LEDs 11-2, the plurality of light bulb color LEDs 12-2, and the plurality of RGB LEDs 13-2 arranged in parallel along the one direction ( This is the second normal direction of the second plane formed by the light emitting surface. In this way, the first optical axis AX1 and the second optical axis AX2 intersect each other, so that the light flux from the first LED light source 10-1 and the second LED light source 10 are located at the position of the cover member 16a that is the light emission window of the illumination device. The area of the light emission window that can overlap the light flux from -2 can be reduced. That is, the entire lighting device can be configured compactly. In a radiation angle region that is separated from the light source unit 1 by a predetermined distance, a part of the first light and a part of the second light overlap each other, and gradation illumination is realized on the irradiated surface. Each point on the irradiated surface may be equidistant from the light source unit 1, and does not necessarily have to be equidistant from the light source unit 1, and the distance from the light source unit 1 may change. A pair of grooves are formed along the one direction in the vicinity of the opening of the recess 171a in the main body 17a, and each of the pair of grooves has a long curved plate shape along the one direction. Both ends of the cover member 16a are fitted, and the opening of the recess 171a is closed by the cover member 16a. The cover member 16a is formed of a material having translucency for the first light emitted from the first LED light source 10-1 and the second light emitted from the second LED light source 10-2. Note that the cover member 16a may have a slight light scattering property as long as desired gradation illumination is not hindered.
　なお、光源部１は、ＲＧＢＬＥＤ１３のみを備えて構成されても良いが、本実施形態のように、昼白色ＬＥＤ１１や電球色ＬＥＤ１２をさらに備えることで、ＲＧＢＬＥＤ１３のみを備えて構成される場合に較べて、演色性を向上できる。照明装置ＬＤａによって放射させたいグラデーション照明に、昼白色ＬＥＤ１１の昼白色の成分を多く含む場合や、電球色ＬＥＤ１２の電球色の成分を多く含む場合に、本実施形態の照明装置ＬＤａは、より効率よく色と明るさを得ることができる。 Although the light source unit 1 may be configured to include only the RGBLED 13, the light source unit 1 may be configured to include only the RGBLED 13 by further including the daylight white LED 11 and the light bulb color LED 12 as in the present embodiment. Color rendering can be improved. The illumination device LDa of the present embodiment is more efficient when the gradation illumination desired to be radiated by the illumination device LDa contains a lot of day white components of the day white LED 11 or a lot of bulb color components of the bulb color LED 12. You can get color and brightness well.
　制御部２は、互いに異なる色で第１および第２光を放射するように第１および第２ＬＥＤ光源１０－１、１０－２を制御するものである。そして、制御部２は、放射角度領域に照射される第１および第２光が、所定の条件内に含まれるように、第１および第２ＬＥＤ光源１０－１、１０－２を制御する。前記所定の条件については、後述する。制御部２は、例えば、ＣＰＵ（Ｃｅｎｔｒａｌ　Ｐｒｏｃｅｓｓｉｎｇ　Ｕｎｉｔ）２１と、メモリ回路２２と、電流制御回路２３とを備える。 The control unit 2 controls the first and second LED light sources 10-1 and 10-2 so as to emit the first and second lights with mutually different colors. Then, the control unit 2 controls the first and second LED light sources 10-1 and 10-2 so that the first and second lights irradiated to the radiation angle region are included in a predetermined condition. The predetermined condition will be described later. The control unit 2 includes, for example, a CPU (Central Processing Unit) 21, a memory circuit 22, and a current control circuit 23.
　電流制御回路２３は、ＣＰＵ２１の制御に従って第１および第２ＬＥＤ光源１０－１、１０－２における昼白色ＬＥＤ１１－１、１１－２、電球色ＬＥＤ１２－１、１２－２およびＲＧＢＬＥＤ１３－１、１３－２それぞれに流れる各電流を制御する回路である。電流制御回路２３は、例えば、昼白色ＬＥＤ１１－１、１１－２それぞれに流れる各電流を制御する第１電流制御回路２３－１と、電球色ＬＥＤ１２－１、１２－２それぞれに流れる各電流を制御する第２電流制御回路２３－２と、ＲＧＢＬＥＤ１３－１、１３－２それぞれに流れる各電流を制御する第３電流制御回路２３－３とを備える。これら第１ないし第３電流制御回路２３－１～２３－３それぞれは、例えば、ＣＰＵ２１によって制御される可変電流源等を備えて構成される。電流制御回路２３は、ＰＷＭ（Ｐｕｌｓｅ　Ｗｉｄｔｈ　Ｍｏｄｕｌａｔｉｏｎ）制御によって電流を可変しても良い。 The current control circuit 23 is a day white LED 11-1, 11-2, light bulb color LED 12-1, 12-2 and RGB LED 13-1, 13- in the first and second LED light sources 10-1, 10-2 according to the control of the CPU 21. 2 is a circuit for controlling each current flowing in each of the two. The current control circuit 23 includes, for example, a first current control circuit 23-1 that controls each current flowing in each of the daylight white LEDs 11-1 and 11-2, and each current that flows in each of the light bulb color LEDs 12-1 and 12-2. A second current control circuit 23-2 for controlling, and a third current control circuit 23-3 for controlling each current flowing in each of the RGB LEDs 13-1, 13-2 are provided. Each of the first to third current control circuits 23-1 to 23-3 includes, for example, a variable current source controlled by the CPU 21. The current control circuit 23 may vary the current by PWM (Pulse Width Modulation) control.
　メモリ回路２２は、各種の所定のプログラムおよび各種の所定のデータを記憶する回路である。前記各種の所定のプログラムには、例えば、所定の心理効果を与えるようにグラデーション照明するための照明制御プログラム等が含まれる。前記各種の所定のデータには、心理効果ごとに前記心理効果を与える色の領域をＣＩＥ１９７６ｕ’ｖ’色度図に準拠した座標値で表すデータ等の、前記所定のプログラムの実行に必要なデータ等が含まれる。このようなメモリ回路２２は、例えば不揮発性の記憶素子であるＲＯＭ（Ｒｅａｄ　Ｏｎｌｙ　Ｍｅｍｏｒｙ）や書き換え可能な不揮発性の記憶素子であるＥＥＰＲＯＭ（Ｅｌｅｃｔｒｉｃａｌｌｙ　Ｅｒａｓａｂｌｅ　Ｐｒｏｇｒａｍｍａｂｌｅ　Ｒｅａｄ　Ｏｎｌｙ　Ｍｅｍｏｒｙ）等を備える。そして、メモリ回路２２は、前記所定のプログラムの実行中に生じるデータ等を記憶するいわゆる前記ＣＰＵのワーキングメモリとなるＲＡＭ（Ｒａｎｄｏｍ　Ａｃｃｅｓｓ　Ｍｅｍｏｒｙ）等を含む。 The memory circuit 22 is a circuit that stores various predetermined programs and various predetermined data. The various predetermined programs include, for example, an illumination control program for performing gradation illumination so as to give a predetermined psychological effect. The various kinds of predetermined data include data necessary for execution of the predetermined program, such as data representing a color region that gives the psychological effect for each psychological effect by coordinate values in accordance with the CIE 1976 u′v ′ chromaticity diagram. Etc. are included. Such a memory circuit 22 includes, for example, a ROM (Read Only Memory) that is a nonvolatile storage element, an EEPROM (Electrically Erasable Programmable Read Only Memory) that is a rewritable nonvolatile storage element, and the like. The memory circuit 22 includes a RAM (Random Access Memory) that serves as a working memory of the CPU that stores data generated during the execution of the predetermined program.
　ＣＰＵ２１は、前記所定のプログラムを読み出して実行することによって、後述のように、所定の心理効果を与えるようにグラデーション照明するための照明制御を行う回路である。 The CPU 21 is a circuit that performs illumination control for gradation illumination so as to give a predetermined psychological effect as described later by reading and executing the predetermined program.
　このような構成の第１態様の照明装置ＬＤａは、例えば天井面、壁面および床面等の室内面を被照射面としてグラデーション照明する水平投影型（バー方式）の装置である。例えば、天井面を被照射面としてグラデーション照明する場合には、図６に示すように、床面から所定の高さで壁に設けられた一方向に長尺な板状の長押上に、第１態様の照明装置ＬＤａが配置されて使用される。 The lighting device LDa of the first aspect having such a configuration is a horizontal projection type (bar type) device that performs gradation illumination using indoor surfaces such as a ceiling surface, a wall surface, and a floor surface as an irradiated surface. For example, when gradation illumination is performed with the ceiling surface as the illuminated surface, as shown in FIG. 6, the plate-shaped long push-up that is long in one direction provided on the wall at a predetermined height from the floor surface is A lighting device LDa of one mode is arranged and used.
　次に、本実施形態の動作について説明する。図７は、前記第１態様の照明装置における動作を示すフローチャートである。図８は、範囲外の指定色を範囲内へ変換する手法を説明するための図である。 Next, the operation of this embodiment will be described. FIG. 7 is a flowchart showing the operation of the illumination device of the first aspect. FIG. 8 is a diagram for explaining a method of converting a designated color outside the range into the range.
　図７において、まず、ユーザは、照明装置ＬＤａの電源スイッチ素子をオンし、照明装置ＬＤａを稼働させる。そして、ユーザは、グラデーション照明するべく、入力部３から発光色を入力する。この発光色の入力には、例えば、上述の第１ないし第３色選択方法のいずれかが用いられる。このように発光色が入力部３を介して入力される（Ｓ１）。 In FIG. 7, first, the user turns on the power switch element of the lighting device LDa to operate the lighting device LDa. Then, the user inputs a light emission color from the input unit 3 in order to perform gradation illumination. For example, any one of the first to third color selection methods described above is used to input the emission color. Thus, the emission color is input via the input unit 3 (S1).
　ユーザから入力部３を介して発光色の入力を受け付けると、ＣＰＵ２１は、入力された発光色をＣＩＥ１９７６ｕ’ｖ’色度図におけるｕ’ｖ’座標値に変換する（Ｓ２）。例えば、発光色がＣＩＥのＲＧＢ表色系のＲ値、Ｇ値およびＢ値で入力された場合には、ＲＧＢ表色系のＲ値、Ｇ値およびＢ値が公知の変換式によってｕ’ｖ’座標系のｕ’値およびｖ’値に変換される。また例えば、発光色がＣＩＥのＸＹＺ表色系のＸ値、Ｙ値およびＺ値で入力された場合には、ＸＹＺ表色系のＸ値、Ｙ値およびＺ値が公知の変換式によってｕ’ｖ’座標系のｕ’値およびｖ’値に変換される。 When receiving the input of the emission color from the user via the input unit 3, the CPU 21 converts the input emission color into a u'v 'coordinate value in the CIE 1976 u'v' chromaticity diagram (S2). For example, when the emission color is input as R value, G value, and B value in the CIE RGB color system, the R value, G value, and B value in the RGB color system are converted to u′v by a known conversion formula. Converted to 'coordinate system u' and v 'values. Further, for example, when the emission color is input as an X value, a Y value, and a Z value of the CIE XYZ color system, the X value, the Y value, and the Z value of the XYZ color system are converted to u ′ by a known conversion formula. It is converted into u ′ value and v ′ value in the v ′ coordinate system.
　次に、ＣＰＵ２１は、この座標変換されたｕ’値およびｖ’値の色（処理Ｓ２による色、ユーザによって入力された発光色）が所定の心理効果を与える色の範囲（条件）内であるか否かを、メモリ回路２２に記憶された前記所定の心理効果を与える色の範囲（条件）を表すデータに基づいて判定する（Ｓ３）。 Next, in the CPU 21, the colors of the u ′ value and the v ′ value that have undergone the coordinate conversion (the color obtained by the processing S <b> 2, the light emission color input by the user) are within a color range (condition) that gives a predetermined psychological effect. Is determined based on data representing a color range (condition) that gives the predetermined psychological effect stored in the memory circuit 22 (S3).
　例えば、ユーザが任意に所望の色相組合せを選択した場合も、心理的に受け入れられる好適な照明を提供する場合には、後述するように、前記範囲（条件）は、前記第１および第２光の最大彩度となる光の色度域が、ＣＩＥ１９７６ｕ’ｖ’色度図において、（ｕ’，ｖ’）の座標点Ｒ＿４（０．４４０、０．５０６）、Ｒ－ＯＲ＿４（０．４１９、０．５２１）、ＯＲ＿４（０．３９８、０．５３７）、ＯＲ－Ｙ＿４（０．３０２、０．５４９）、Ｙ＿４（０．２３７，０．５５７）、Ｙ－Ｇ＿４（０．２０４、０．５５９）、Ｇ＿４（０．０８５、０．５６８）、Ｇ－ＢＧ＿４（０．０９８、０．４８３）、ＢＧ＿４（０．１１２、０．３９８）、ＢＧ－Ｂ＿４（０．１２２、０．３６１）、Ｂ＿４（０．１７３、０．１６９）、Ｂ－Ｐ＿４（０．２４５、０．２３０）、Ｐ＿４（０．３１７、０．２９１）、Ｐ－Ｒ＿４（０．３７９、０．３９８）の各点を結ぶことによって得られる上限境界閉ループ線と、（ｕ’，ｖ’）の座標点Ｒ＿１（０．２６８、０．４８２）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）、ＯＲ＿１（０．２５７、０．４８９）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）、Ｙ＿１（０．２１７、０．４９４）、Ｙ－Ｇ＿１（０．２０９、０．４９５）、Ｇ＿１（０．１７９、０．４９７）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）、ＢＧ＿１（０．１８６、０．４５５）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）、Ｂ＿１（０．２０１、０．３９７）、Ｂ－Ｐ＿１（０．２１９、０．４１３）、Ｐ＿１（０．２３７、０．４２８）、Ｐ－Ｒ＿１（０．２５２、０．４５５）の各点を結ぶことによって得られる下限境界閉ループ線との間の第１色度領域に含まれることである。 For example, even when the user arbitrarily selects a desired hue combination, when providing a suitable illumination that is psychologically acceptable, the range (condition) is set such that the first and second lights are described later. In the CIE 1976 u′v ′ chromaticity diagram, the chromaticity range of light having the maximum saturation of (u ′, v ′) is the coordinate point R_4 (0.440, 0.506), R-OR — 4 (0.419). 0.521), OR_4 (0.398, 0.537), OR-Y_4 (0.302, 0.549), Y_4 (0.237, 0.557), Y-G_4 (0.204, 0) .559), G_4 (0.085, 0.568), G-BG_4 (0.098, 0.483), BG_4 (0.112, 0.398), BG-B_4 (0.122, 0.361) ), B_4 (0.173, 0.169), B- _4 (0.245, 0.230), P_4 (0.317, 0.291), P_R_4 (0.379, 0.398), and the upper limit boundary closed loop line obtained by connecting the points; u ′, v ′) coordinate points R_1 (0.268, 0.482), R-OR_1 (0.262, 0.485), OR_1 (0.257, 0.489), OR-Y_1 (0. 233, 0.492), Y_1 (0.217, 0.494), Y-G_1 (0.209, 0.495), G_1 (0.179, 0.497), G-BG_1 (0.182, 0.476), BG_1 (0.186, 0.455), BG-B_1 (0.188, 0.445), B_1 (0.201, 0.397), BP_1 (0.219, 0. 413), P_1 (0.237, 0.428), PR_ (0.252,0.455) first is that contained in the chromaticity region between the lower boundary closed loop line obtained by connecting the points of.
　この処理Ｓ３の判定の結果、前記処理Ｓ２による色が前記所定の心理効果を与える色の範囲（条件）内である場合（Ｙｅｓ）には、ＣＰＵ２１は、処理Ｓ６を実行し、一方、前記判定の結果、前記処理Ｓ２による色が前記所定の心理効果を与える色の範囲（条件）内ではない場合（Ｎｏ）には、すなわち、前記処理Ｓ２による色が前記所定の心理効果を与える色の範囲を外れる場合（Ｎｏ）には、ＣＰＵ２１は、処理Ｓ４を実行する。 As a result of the determination in the process S3, when the color in the process S2 is within the color range (condition) that gives the predetermined psychological effect (Yes), the CPU 21 executes the process S6, while the determination As a result, when the color by the process S2 is not within the color range (condition) that gives the predetermined psychological effect (No), that is, the color range by which the color by the process S2 gives the predetermined psychological effect When it is outside (No), the CPU 21 executes the process S4.
　処理Ｓ４において、ＣＰＵ２１は、前記処理Ｓ２による色（ユーザによって入力された発光色）を前記所定の心理効果を与える色の範囲内へ変換するか否かを判定する。例えば、変換するか否かをユーザに問い合わせる表示を行う表示部（入力部３が通信回路を含む場合には前記スマートフォンやタブレット型コンピュータの表示部であってもよい）がさらに照明装置ＬＤａに備えられ、入力部３を介してユーザによって変換の許否が入力され、この入力に応じて前記判定が実行されてもよい。なお、処理Ｓ４が省略され、処理Ｓ３で前記処理Ｓ２による色が前記所定の心理効果を与える色の範囲（条件）内ではない場合と判定されると、次の処理Ｓ５が実行され、前記処理Ｓ２による色（ユーザによって入力された発光色）を前記所定の心理効果を与える色の範囲内へ自動的に変換するように、照明装置ＬＤａが構成されてもよい。また例えば、表示部がさらに照明装置ＬＤａに備えられ、前記処理Ｓ２による色（ユーザによって入力された発光色）が前記所定の心理効果を与える色の範囲（条件）を外れている旨の警告が前記表示部に表示されてもよい。 In the process S4, the CPU 21 determines whether or not to convert the color (the light emission color input by the user) obtained in the process S2 into a color range that gives the predetermined psychological effect. For example, the illumination device LDa further includes a display unit that performs a display for inquiring the user whether or not to convert (the input unit 3 may be a display unit of the smartphone or tablet computer if the input unit 3 includes a communication circuit). Further, whether the conversion is permitted or not is input by the user via the input unit 3, and the determination may be executed according to this input. If the process S4 is omitted and it is determined in the process S3 that the color of the process S2 is not within the color range (condition) that gives the predetermined psychological effect, the next process S5 is executed, and the process The illuminating device LDa may be configured to automatically convert the color according to S2 (the light emission color input by the user) into the color range that gives the predetermined psychological effect. In addition, for example, a display unit is further provided in the illumination device LDa, and a warning that the color (the emission color input by the user) by the processing S2 is out of the color range (condition) that gives the predetermined psychological effect is issued. It may be displayed on the display unit.
　処理Ｓ５において、ＣＰＵ２１は、前記処理Ｓ２による色（ユーザによって入力された発光色）を前記所定の心理効果を与える色の範囲（条件）内となるように変換する。この変換では、例えば、図８に示すように、前記処理Ｓ２による色（ユーザによって入力された発光色）は、前記処理Ｓ２による色のｕ’ｖ’座標値で表される点（ユーザの指定色点）と前記所定の心理効果を与える色の範囲の中心点（白色点）とを結ぶ線分が、前記所定の心理効果を与える色の範囲の境界と交差する点（変換色点）の色に変換される。そして、処理Ｓ５に続いて処理Ｓ６が実行される。 In the process S5, the CPU 21 converts the color (the light emission color input by the user) obtained in the process S2 so as to be within the color range (condition) that gives the predetermined psychological effect. In this conversion, for example, as shown in FIG. 8, the color obtained by the process S2 (the light emission color input by the user) is a point represented by the u′v ′ coordinate value of the color obtained by the process S2 (specified by the user). Color line) and a line segment connecting the center point (white point) of the color range giving the predetermined psychological effect intersects with the boundary of the color range giving the predetermined psychological effect (conversion color point) Converted to color. Then, processing S6 is executed following processing S5.
　処理Ｓ６において、ＣＰＵ２１は、処理Ｓ３でＹｅｓと判定された場合には、前記処理Ｓ２による色（ユーザによって入力された発光色）で第１および第２ＬＥＤ光源１０－１、１０－２が発光するように、電流制御回路２３を介して第１および第２ＬＥＤ光源１０－１、１０－２を電流制御する。ＣＰＵ２１は、処理Ｓ３でＮｏと判定された場合には、処理Ｓ５で変換されたｕ’値およびｖ’値の色で第１および第２ＬＥＤ光源１０－１、１０－２が発光するように、電流制御回路２３を介して第１および第２ＬＥＤ光源１０－１、１０－２を電流制御する。例えば、ＲＧＢＬＥＤ１３によって発光色を放射する場合では、例えば８ビット分解能で表されるＲ値、Ｇ値およびＢ値の３色の混合比率を前記発光色に応じて設定することで、前記発光色を放射できる。なお、昼白色ＬＥＤ１１や電球色ＬＥＤ１２を用いる場合には、昼白色光や電球色光の比率に応じてＲ値、Ｇ値およびＢ値の３色の混合比率が適宜に調整される。これによって第１および第２ＬＥＤ光源１０－１、１０－２は、第１および第２光それぞれを放射し、例えば、図６に示すように、第１および第２光で被照明面の天井面をグラデーション照明する。 In the process S6, if the CPU 21 determines Yes in the process S3, the first and second LED light sources 10-1 and 10-2 emit light in the color obtained by the process S2 (the light emission color input by the user). As described above, the current control is performed on the first and second LED light sources 10-1 and 10-2 via the current control circuit 23. When the CPU 21 determines No in the process S3, the first and second LED light sources 10-1 and 10-2 emit light with the colors of the u ′ value and the v ′ value converted in the process S5. The first and second LED light sources 10-1 and 10-2 are current-controlled through the current control circuit 23. For example, in the case of emitting the emission color by the RGBLED 13, for example, by setting a mixing ratio of three colors of R value, G value and B value represented by 8-bit resolution according to the emission color, the emission color is changed. Can radiate. In addition, when using the daylight white LED 11 and the light bulb color LED 12, the mixing ratio of the three colors of the R value, the G value, and the B value is appropriately adjusted according to the ratio of the daylight white light and the light bulb color light. As a result, the first and second LED light sources 10-1 and 10-2 respectively emit the first and second lights. For example, as shown in FIG. 6, the ceiling surface of the surface to be illuminated with the first and second lights. Gradient lighting.
　このような本実施形態における照明装置ＬＤａおよびこれに実装された照明方法では、互いに異なる色で第１および第２ＬＥＤ光源１０－１、１０－２から放射された第１および第２光は、それら各一部が放射角度領域で互いに重なるように放射されるので、本実施形態における照明装置ＬＤａおよびこれに実装された照明方法は、グラデーション照明できる。そして、本実施形態における照明装置ＬＤａおよびこれに実装された照明方法は、前記第１および第２光が後述の所定の心理効果を与える色度領域に含まれるので、人に所定の心理効果を与える光でグラデーション照明できる。したがって、本実施形態における照明装置ＬＤａおよびこれに実装された照明方法は、照明光の環境下に居る人に、所定の心理効果を好適に与えることができる。 In the illuminating device LDa and the illumination method mounted thereon in this embodiment, the first and second lights emitted from the first and second LED light sources 10-1 and 10-2 in different colors are Since each part is emitted so as to overlap each other in the radiation angle region, the illumination device LDa in this embodiment and the illumination method mounted thereon can perform gradation illumination. In the illumination device LDa and the illumination method implemented in the illumination device LDa in the present embodiment, the first and second lights are included in a chromaticity region that gives a predetermined psychological effect to be described later. Gradient illumination can be achieved with the light provided. Therefore, the illumination device LDa and the illumination method mounted thereon according to the present embodiment can suitably give a predetermined psychological effect to a person who is in an environment of illumination light.
　（実験；実施例、比較例）
　図９は、実験室内の様子を説明するための図である。図９Ａは、平面図であり、図９Ｂは、側面図である。図１０は、ＣＩＥ１９７６ｕ’ｖ’色度図上における実験に用いた照明装置ＬＤの色光の範囲および実験に用いられた色光条件を示す図である。図１０には、実験に用いた照明装置ＬＤの色光の範囲の境界が破線で示され、実験に用いられた色光条件が実線で示されている。図１１は、受け入れられる、という心理効果に関する実験結果を示す図である。図１２は、快適感、という心理効果に関する実験結果を示す図である。図１３は、くつろぎ感、という心理効果に関する実験結果を示す図である。図１４は、すっきり感、という心理効果に関する実験結果を示す図である。図１５は、集中できる、という心理効果に関する実験結果を示す図である。図１６は、眠気、という心理効果に関する実験結果を示す図である。図１７は、眠気を覚ます、という心理効果に関する実験結果を示す図である。図１８は、ｕ’ｖ’色度図において、白色領域、低彩度青領域ないし高彩度紫領域の各領域を示すための図である。 (Experiment; Examples, Comparative Examples)
FIG. 9 is a diagram for explaining a state in the laboratory. 9A is a plan view and FIG. 9B is a side view. FIG. 10 is a diagram showing the range of color light of the illumination device LD used in the experiment on the CIE 1976 u′v ′ chromaticity diagram and the color light conditions used in the experiment. In FIG. 10, the boundary of the color light range of the illumination device LD used in the experiment is indicated by a broken line, and the color light condition used in the experiment is indicated by a solid line. FIG. 11 is a diagram illustrating an experimental result regarding a psychological effect of being accepted. FIG. 12 is a diagram illustrating an experimental result regarding a psychological effect of comfort. FIG. 13 is a diagram illustrating an experimental result regarding a psychological effect of a feeling of relaxation. FIG. 14 is a diagram illustrating an experimental result regarding a psychological effect of a refreshing feeling. FIG. 15 is a diagram illustrating an experimental result regarding a psychological effect that the user can concentrate. FIG. 16 is a diagram illustrating an experimental result regarding a psychological effect of drowsiness. FIG. 17 is a diagram illustrating an experimental result regarding a psychological effect of waking up sleepiness. FIG. 18 is a diagram for illustrating each of the white region, the low saturation blue region, and the high saturation purple region in the u′v ′ chromaticity diagram.
　上述の照明装置ＬＤａによって人に所定の心理効果を与えるグラデーション照明を実現するために、以下の実験が行われた。 The following experiment was conducted in order to realize gradation lighting that gives a predetermined psychological effect to a person using the above-described lighting device LDa.
　本実験は、２色の間接照明光によって部屋の壁面（放射角度領域）を照明された室内空間の印象を、心理物理学実験で行われた。変数は、間接照明光の色相および彩度である。 In this experiment, the impression of the indoor space where the wall surface (radiation angle region) of the room was illuminated with two colors of indirect illumination light was performed in a psychophysical experiment. The variables are the hue and saturation of the indirect illumination light.
　実験環境は、図９に示す実験ブース内である。この実験ブースの大きさは、幅３０００ｍｍ×奥行３０００ｍｍ×高さ２４００ｍｍであり、一般的な住宅個室が想定されている。ブース内中央には、ローテーブルＬＴ（株式会社ニトリ製／色：ホワイト：幅９００ｍｍ×奥行き５５０ｍｍ×高さ４２０ｍｍ／素材：ＭＤＦ、ＭＥＬＡＭＩＮＥ）が配置され、その上に、照明装置ＬＤが設置されている。この照明装置ＬＤは、白色スチレンボード製の目隠し部材（幅３００ｍｍ×奥行き２００ｍｍ×高さ３００ｍｍ)によって被験者ＳＰの目に触れないようにされた。被験者ＳＰは、実験ブース内の後方の壁付近に置かれたオフィスチェアＯＣに座り、実験ブース内全体を観察する。実験中は、実験ブース内の照明の影響を避けるため、消灯し、０ルクスとされた。 The experimental environment is in the experimental booth shown in FIG. The size of this experimental booth is 3000 mm wide x 3000 mm deep x 2400 mm high, and a typical residential private room is assumed. In the center of the booth, a low table LT (manufactured by Nitori Co., Ltd./color: white: width 900 mm × depth 550 mm × height 420 mm / material: MDF, MELAMINE) is arranged, and an illumination device LD is installed thereon. Yes. This illumination device LD was made not to touch the eyes of the subject SP by a blind member made of white styrene board (width 300 mm × depth 200 mm × height 300 mm). The subject SP sits on the office chair OC placed near the rear wall in the experimental booth and observes the entire experimental booth. During the experiment, the light was turned off to 0 lux to avoid the effects of lighting in the experiment booth.
　照明装置ＬＤは、上述した第１態様の照明装置ＬＤａと略同構造であり、前方方向と上方方向に異なる色で第１および第２光それぞれを放射できる装置である。この照明装置ＬＤは、コンピュータ上でＲ値、Ｇ値、Ｂ値をそれぞれ０～２５５の間で指定でき、前方方向と上方方向それぞれに任意の色で第１および第２光それぞれを放射可能である。なお、実験の際における照明装置ＬＤの操作は、実験ブース外に配置されたコンピュータによって行われた。 The illuminating device LD has substantially the same structure as the illuminating device LDa of the first aspect described above, and is a device that can emit the first and second lights in different colors in the forward direction and the upward direction. This illuminating device LD can designate R value, G value, and B value between 0 and 255 on the computer, respectively, and can emit the first and second lights in arbitrary colors in the forward direction and the upward direction, respectively. is there. The operation of the illumination device LD during the experiment was performed by a computer arranged outside the experiment booth.
　実験条件の色相条件として、基本色である赤、青、緑、黄と、その中間色の橙、紫、青緑および白の合計８色が採用された。彩度条件は、有彩色７色それぞれに対して高彩度条件と低彩度条件の２条件が用意された。前記高彩度条件は、各色相に対して照明装置ＬＤが呈示できる最も純度の高い色とした。ただし、色相によっては飽和度が高く、明らかに実験ブース室内空間に投影することは、不適切と思われる光色が何種類かあったため、被験者６名によって予備実験が行われ、許容可能な純度まで落とされた。その結果、赤は、純度７０％まで許容できると結論づけられ、青と緑とは、純度９０％まで許容できると結論付けられた。このため、これら３色は、純度が落とされた。他の色は、純度１００％である。低彩度条件は、各色相の高彩度条件から白色への純度５０％の位置とした。 As the hue conditions for the experimental conditions, the basic colors red, blue, green, yellow and intermediate colors orange, purple, blue green, and white were used in total. As the saturation condition, two conditions of a high saturation condition and a low saturation condition were prepared for each of the seven chromatic colors. The high saturation condition is the highest purity color that the lighting device LD can present for each hue. However, depending on the hue, the degree of saturation is high, and it was apparent that there were several types of light colors that seemed inappropriate to project into the indoor space of the experiment booth. It was dropped. As a result, it was concluded that red was acceptable up to 70% purity, and blue and green were concluded up to 90% purity. For this reason, the purity of these three colors was reduced. The other colors are 100% pure. The low saturation condition was a position where the purity from the high saturation condition of each hue to white was 50%.
　図１０には、実験に用いられた照明装置ＬＤから放射できる光色の範囲と、実験に採用した全１５色とがｕ’ｖ’色度座標上で示されている。表１には、各色のｕ’ｖ’色度値が示されている。すなわち、高彩度条件において、紫（高紫）は、（０．３１７４、０．２９０６）であり、赤（高赤）は、（０．４３９６、０．５０５５）であり、橙（高橙）は、（０．３９７５、０．５３７０）であり、黄（高黄）は、（０．２３７２、０．５５７２）であり、緑（高緑）は、（０．０８４５、０．５６８１）であり、青緑（高青緑）は、（０．１１１６、０．３９８１）であり、そして、青（高青）は、（０．１７２６、０．１６９０）である。低彩度条件において、紫（低紫）は、（０．２６４０、０．３８２１）であり、赤（低赤）は、（０．３２５１、０．４８９６）であり、橙（低橙）は、（０．３０４０、０．５０５３）であり、黄（低黄）は、（０．２２３９、０．５１５４）であり、緑（低緑）は、（０．１４７５、０．５２０９）であり、青緑（低青緑）は、（０．１６１１、０．４３５９）であり、そして、青（低青）は、（０．１９１５、０．３２１４）である。無彩色の白（白）は、（０．２１０４、０．４７３５）である。なお、これらは、ＣＩＥ１９７６ｕ’ｖ’色度図に準拠している。 FIG. 10 shows the range of light colors that can be emitted from the illumination device LD used in the experiment and all 15 colors used in the experiment on the u′v ′ chromaticity coordinates. Table 1 shows the u'v 'chromaticity value of each color. That is, in the high saturation condition, purple (high purple) is (0.3174, 0.2906), red (high red) is (0.4396, 0.5055), and orange (high orange) is , (0.3975, 0.5370), yellow (high yellow) is (0.2372, 0.5572), and green (high green) is (0.0845, 0.5681). , Blue green (high blue green) is (0.1116, 0.3981), and blue (high blue) is (0.1726, 0.1690). In the low saturation condition, purple (low purple) is (0.2640, 0.3821), red (low red) is (0.3251, 0.4896), and orange (low orange) is (0.3040, 0.5053), yellow (low yellow) is (0.2239, 0.5154), and green (low green) is (0.1475, 0.5209) , Blue green (low blue green) is (0.1611, 0.4359) and blue (low blue) is (0.1915, 0.3214). Achromatic white (white) is (0.2104, 0.4735). These are based on the CIE 1976 u′v ′ chromaticity diagram.
　以上より、{７色（有彩色）×２（彩度条件）＋１色（白色）}＝１５色の、前方方向（放射角度領域の壁面における床側）と上方方向（放射角度領域の壁面における天井側）との入れ替えを含む順列、すなわち全２１０条件が条件数とされた。なお、これには、互いに異なる２色での間接照明を目的としているため、上方方向と前方方向が同じ色光となる条件は、含まれていない。前記白色は、後述の白色領域の代表であり、前記低青は、後述の低彩度青領域の代表であり、前記低青緑は、後述の低彩度青緑領域の代表であり、前記低緑は、後述の低彩度緑領域の代表であり、前記低黄は、後述の低彩度黄領域の代表であり、前記低橙は、後述の低彩度橙領域の代表であり、前記低赤は、後述の低彩度赤領域の代表であり、前記低紫は、後述の低彩度紫領域の代表であり、前記高青は、後述の高彩度青領域の代表であり、前記高青緑は、後述の高彩度青緑領域の代表であり、前記高緑は、後述の高彩度緑領域の代表であり、前記高黄は、後述の高彩度黄領域の代表であり、前記高橙は、後述の高彩度橙領域の代表であり、前記高赤は、後述の高彩度赤領域の代表であり、前記高紫は、後述の高彩度紫領域の代表である。 As described above, {7 colors (chromatic color) × 2 (saturation condition) +1 color (white)} = 15 colors in the forward direction (the floor side on the wall surface of the radiation angle region) and the upward direction (on the wall surface of the radiation angle region) The permutation including replacement with the ceiling side), that is, all 210 conditions were set as the condition numbers. This is intended for indirect illumination with two different colors, and therefore does not include the condition that the upward direction and the forward direction are the same color light. The white is a representative of a white region described later, the low blue is a representative of a low saturation blue region described below, and the low blue green is a representative of a low saturation blue-green region described below, Low green is a representative of a low saturation green region described later, the low yellow is a representative of a low saturation yellow region described later, and the low orange is a representative of a low saturation orange region described below, The low red is a representative of a low chroma red area described later, the low purple is a representative of a low chroma purple area described below, and the high blue is a representative of a high chroma blue area described below, High blue-green is a representative of a high-saturation blue-green region described later, the high-green is a representative of a high-saturation green region described later, the high yellow is a representative of a high-saturation yellow region described later, and the high orange is The high-saturation orange region, which will be described later, is representative of the high-saturation red region, which will be described later, and the high purple is a representative of the later-described high-saturation purple region.
　表１に示すように、各色の最大出力時の照度は、色により最大照度Ｅｖが大きく異なるため、高紫の１６００ルクスが基準とされ、各色の照度は、１６００ルクスに調節された。なお、照度は、発光面からの垂直距離１０ｃｍで測定された。ただし、高青は、最大でも５００ルクス程度しか出力できないため、高青のみ、その最大出力とされた。 As shown in Table 1, since the maximum illuminance Ev differs greatly depending on the color, the illuminance at the maximum output of each color was based on 1600 lux of high purple, and the illuminance of each color was adjusted to 1600 lux. The illuminance was measured at a vertical distance of 10 cm from the light emitting surface. However, since high blue can output only about 500 lux at the maximum, only high blue was set as the maximum output.
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
　評価項目は、次の１９組の形容詞対および１つの任意回答である。これら形容詞対には、既往研究で使用されている一般的な形容詞対に加え、実際の用途やシーンに直接結び付くような形容詞対も含められた。１～１９番の各項目の評価方法は、セマンディックディファレンシャル法（ＳＤ法）が使用され、被験者は、評価値０を“どちらでもない”とした評価値－３～＋３の７段階で評価した。２０番目の項目では、呈示された照明空間を見て、何かイメージしたものや言葉等がある場合に、記入された。
１番；受け入れられる　－　受け入れられない
２番；好き　－　嫌い
３番；賑やかな　－　静かな
４番；軽い　－　重い
５番；暗い　－　明るい
６番；くつろいだ　－　緊張した
７番；目が覚める　－　眠くなる
８番；活動を終えたくなる　－　活動を始めたくなる
９番；すっきり　－　どんより
１０番；集中できる　－　気が散る
１１番；不安　－　安心
１２番；わくわくする　－　つまらない
１３番；懐かしい　－　近未来な
１４番；自然的な　－　人工的な
１５番；快適　－　不快
１６番；温かい　－　冷たい
１７番；斬新な　－　ありきたりな
１８番；狭い　－　広い
１９番；けばけばしい　－　けばけばしくない
２０番；何かイメージできるもの（任意回答） The evaluation items are the following 19 sets of adjective pairs and one optional answer. These adjective pairs included in addition to the general adjective pairs used in previous studies, as well as adjective pairs that are directly linked to actual uses and scenes. The evaluation method for each of items 1 to 19 uses the Semantic differential method (SD method), and subjects evaluated it in seven stages, with an evaluation value of 0 to “None”, with an evaluation value of -3 to +3. . In the twentieth item, when there is something that is imaged or words when looking at the presented lighting space, it was filled in.
No. 1; Accepted-Unacceptable No. 2; Like-Dislike No. 3; Busy-Quiet No. 4; Light-Heavy No. 5; Dark-Bright No. 6; Relaxed-Tension No. 7; Awaken- No. 8 that makes you sleep; No. 9 that makes you want to finish an activity-No. 9 that makes you want to start an activity; Neat-No. 10; Can concentrate;-Annoyed No. 11; Anxiety-No. 12; Future # 14; Natural-Artificial # 15; Comfortable-Unpleasant # 16; Warm-Cold # 17; Innovative-Ordinary # 18; Narrow-Wide # 19; Stupid-Stupid-Stupid # 20; Something you can imagine (optional answer)
　被験者ＳＰは、２０代の日本人男性３名および女性３名の計６名である。 Subject SP is a total of 6 people including 3 Japanese men and 3 women in their 20s.
　実験手順は、次の通りである。被験者ＳＰには、次の実験手順を説明する実験手順欄と各項目の評価値を記入する記入欄とを備えたインストラクションシートが配られ、実験が説明される。その後、被験者ＳＰは、非照明の実験ブース内に入り、１分間の閉眼状態で待機する。実験者の合図の後に、被験者ＳＰは、実験ブース内に呈示された照明空間を３０秒観察し、実験者の合図の後、各項目の評価を評価用紙に記入する。記入が終わり次第、被験者ＳＰは、実験者にその返事を行い、実験者は、照明光を消す。その後、被験者ＳＰは、目を閉じて閉眼状態で待機し、１０秒後に、次の照明条件で実験ブース内に呈示された照明空間を観察する。以下、同様の手順が全照明条件に対して繰り返される。実験は、上述したように２１０の照明条件を３セットに分けて行われ、１セット当たりの所要時間は、約２時間であった。１回の実験につき最大３人まで同時に実験が行われた。 The experimental procedure is as follows. The subject SP is provided with an instruction sheet having an experimental procedure column for explaining the next experimental procedure and an entry column for entering the evaluation value of each item to explain the experiment. Thereafter, the subject SP enters the non-illuminated experimental booth and waits for one minute with his eyes closed. After the experimenter's signal, the subject SP observes the illumination space presented in the experiment booth for 30 seconds, and after the experimenter's signal, writes the evaluation of each item on the evaluation sheet. Upon completion of the entry, the subject SP responds to the experimenter, and the experimenter turns off the illumination light. Thereafter, the subject SP closes his eyes and stands by with his eyes closed, and after 10 seconds, observes the illumination space presented in the experimental booth under the following illumination conditions. Thereafter, the same procedure is repeated for all illumination conditions. The experiment was performed by dividing 210 lighting conditions into three sets as described above, and the required time per set was about 2 hours. Up to three people were tested simultaneously per experiment.
　この実験結果が図１１ないし図１７にバブルチャートで示されている。これらバブルチャートにおいて、横方向には、前方方向（放射角度領域の壁面における床側）に放射される第１光の色相が示され、縦方向には、上方方向（放射角度領域の壁面における天井側）に放射される第２光の色相が示され、交点には、その横方向の色相の第１光および縦方向の色相の第２光を実験ブース内に放射した場合の評価値が○の大きさで示されている。○は、プラス値（＋１～＋３）を表し、●は、マイナス値（－１～－３）を表す。例えば、最も大きな○は、＋３であり、最も大きな●は、－３である。評価値は、被験者６人の平均値である。 The experimental results are shown in a bubble chart in FIGS. In these bubble charts, the horizontal direction indicates the hue of the first light emitted in the forward direction (the floor side on the wall surface of the radiation angle region), and the vertical direction indicates the upward direction (the ceiling on the wall surface of the radiation angle region). The hue of the second light emitted on the side) is shown, and at the intersection, the evaluation value when the first light of the horizontal hue and the second light of the vertical hue are emitted into the experimental booth is ○ Is shown in the size of ○ represents a positive value (+1 to +3), and ● represents a negative value (−1 to −3). For example, the largest circle is +3, and the largest circle is -3. The evaluation value is an average value of six subjects.
　図１１には、１番目の評価項目「受け入れられる　－　受け入れられない」に関する実験結果が示されている。図１１では、受け入れられる場合には、プラスの評価値となって、評価値が○で表され、受け入れられない場合には、マイナスの評価値となって、評価値が●で表される。図１２には、１５番目の評価項目「１５番；快適　－　不快」に関する実験結果が示されている。図１２では、快適である場合には、プラスの評価値となって、評価値が○で表され、不快である場合には、マイナスの評価値となって、評価値が●で表される。図１３には、６番目の評価項目「くつろいだ　－　緊張した」に関する実験結果が示されている。図１３では、くつろいだ場合には、プラスの評価値となって、評価値が○で表され、緊張した場合には、マイナスの評価値となって、評価値が●で表される。図１４には、９番目の評価項目「すっきり　－　どんより」に関する実験結果が示されている。図１４では、すっきりした場合には、プラスの評価値となって、評価値が○で表され、どんよりした場合には、マイナスの評価値となって、評価値が●で表される。図１５には、１０番目の評価項目「集中できる　－　気が散る」に関する実験結果が示されている。図１５では、集中できる場合には、プラスの評価値となって、評価値が○で表され、気が散る場合には、マイナスの評価値となって、評価値が●で表される。図１６および図１７には、７番目の評価項目「目が覚める　－　眠くなる」に関する実験結果が示されている。図１６および図１７では、眠気が覚める場合には、プラスの評価値となって、評価値が○で表され、眠くなる場合には、マイナスの評価値となって、評価値が●で表される。 Fig. 11 shows the experimental results for the first evaluation item "accepted-not accepted". In FIG. 11, when accepted, the evaluation value becomes a positive evaluation value, and the evaluation value is represented by ◯. When not accepted, the evaluation value becomes a negative evaluation value, and the evaluation value is represented by ●. FIG. 12 shows the experimental results regarding the 15th evaluation item “No. 15; comfortable-uncomfortable”. In FIG. 12, when comfortable, the evaluation value is positive, and the evaluation value is represented by ○, and when uncomfortable, the evaluation value is negative, and the evaluation value is represented by ●. . FIG. 13 shows the experimental results relating to the sixth evaluation item “Relaxed-Tensioned”. In FIG. 13, when the person is relaxed, the evaluation value is a positive evaluation value, and the evaluation value is represented by ◯. When the person is nervous, the evaluation value is a negative evaluation value, and the evaluation value is represented by ●. FIG. 14 shows the experimental results relating to the ninth evaluation item “Neat-Don Yori”. In FIG. 14, when it is clear, it becomes a positive evaluation value, and the evaluation value is represented by ◯. When it is overcast, it becomes a negative evaluation value, and the evaluation value is represented by ●. FIG. 15 shows an experimental result regarding the tenth evaluation item “concentrate-distract”. In FIG. 15, when the user can concentrate, the evaluation value becomes a positive evaluation value, and the evaluation value is indicated by ◯. When distracted, the evaluation value becomes a negative evaluation value, and the evaluation value is indicated by ●. FIG. 16 and FIG. 17 show the experimental results relating to the seventh evaluation item “Wake up-become sleepy”. In FIG. 16 and FIG. 17, when sleepiness is awakened, the evaluation value is positive, and the evaluation value is represented by ○, and when sleepiness is obtained, the evaluation value is negative, and the evaluation value is represented by ●. Is done.
　そして、これらを基に、同じ照明条件に対し、各心理効果を対比するために、実施例１ないし実施例６および比較例が選定され、その結果が表２に示されている。 Then, based on these, Examples 1 to 6 and Comparative Examples were selected in order to compare the psychological effects with respect to the same lighting conditions, and the results are shown in Table 2.
Figure JPOXMLDOC01-appb-T000002
Figure JPOXMLDOC01-appb-T000002
　実施例１は、前方方向（放射角度領域の壁面における床側）に放射される第１光の色相が低青緑であり、上方方向（放射角度領域の壁面における天井側）に放射される第２光の色相が高青であり、評価項目「受け入れられる」、評価項目「快適感」、評価項目「くつろぎ感」、評価項目「すっきり感」、評価項目「集中できる」、評価項目「入眠」および評価項目「眠気を覚ます」の各評価値は、それぞれ、１．６、１．６、２、１．６、１．１、－０．５７および０．５７である。 In the first embodiment, the hue of the first light emitted in the forward direction (the floor side on the wall surface of the radiation angle region) is low blue-green, and the first light emitted in the upward direction (the ceiling side on the wall surface of the radiation angle region). 2 light hue is high blue, evaluation item "acceptable", evaluation item "comfort", evaluation item "relaxation", evaluation item "clean feeling", evaluation item "concentrate", evaluation item "sleeping" The evaluation values of the evaluation item “wake up sleepiness” are 1.6, 1.6, 2, 1.6, 1.1, −0.57, and 0.57, respectively.
　したがって、実施例１のグラデーション照明は、人に最もくつろぎ感を与えることができ、評価値１以上で心理効果があると認定すると、実施例１のグラデーション照明は、人に、受け入れられる、快適感、くつろぎ感、すっきり感および集中できる、という各心理効果を与えることができる。 Therefore, the gradation lighting according to the first embodiment can give the person the most comfortable feeling, and if the gradation lighting according to the first embodiment is recognized as having a psychological effect with an evaluation value of 1 or more, the gradation lighting according to the first embodiment is comfortable to the person. It can give each psychological effect of feeling relaxed, refreshing and concentrating.
　実施例２は、前方方向に放射される第１光の色相が低黄であり、上方方向に放射される第２光の色相が低青であり、評価項目「受け入れられる」、評価項目「快適感」、評価項目「くつろぎ感」、評価項目「すっきり感」、評価項目「集中できる」、評価項目「入眠」および評価項目「眠気を覚ます」の各評価値は、それぞれ、１．４３、１．１、１．１、１、１、－０．２９および０．２９である。 In Example 2, the hue of the first light emitted in the forward direction is low yellow, the hue of the second light emitted in the upward direction is low blue, the evaluation item “accepted”, and the evaluation item “comfortable” The evaluation values of “feeling”, evaluation item “relaxation”, evaluation item “clean feeling”, evaluation item “concentrate”, evaluation item “sleeping” and evaluation item “wake up sleepiness” are 1.43, 1 .1, 1.1, 1, 1, -0.29 and 0.29.
　したがって、実施例２のグラデーション照明は、人に最も受け入れられ感を与えることができ、評価値１以上で心理効果があると認定すると、実施例２のグラデーション照明は、人に、受け入れられる、快適感、くつろぎ感、すっきり感および集中できる、という各心理効果を与えることができる。 Therefore, the gradation lighting of the second embodiment can give the most acceptable feeling to the person, and if it is recognized that there is a psychological effect with an evaluation value of 1 or more, the gradation lighting of the second embodiment is comfortable and acceptable to the person. Each psychological effect of feeling, relaxing, refreshing and concentrating can be given.
　実施例３は、前方方向に放射される第１光の色相が高黄であり、上方方向に放射される第２光の色相が低青であり、評価項目「受け入れられる」、評価項目「快適感」、評価項目「くつろぎ感」、評価項目「すっきり感」、評価項目「集中できる」、評価項目「入眠」および評価項目「眠気を覚ます」の各評価値は、それぞれ、１．１、１．１、１．６、１、０．５７、－０．１４および０．１４である。 In Example 3, the hue of the first light emitted in the forward direction is high yellow, the hue of the second light emitted in the upward direction is low blue, the evaluation item “accepted”, and the evaluation item “comfortable” The evaluation values of the evaluation item “feeling of relaxation”, the evaluation item “refreshing feeling”, the evaluation item “concentration”, the evaluation item “sleeping” and the evaluation item “waking up sleepiness” are 1.1, 1, respectively. .1, 1.6, 1, 0.57, -0.14 and 0.14.
　したがって、実施例３のグラデーション照明は、人に最もくつろぎ感を与えることができ、評価値１以上で心理効果があると認定すると、実施例３のグラデーション照明は、人に、受け入れられる、快適感、くつろぎ感およびすっきり感、という各心理効果を与えることができる。 Therefore, the gradation lighting of Example 3 can give the person the most relaxing feeling, and if the gradation lighting of Example 3 is recognized as having a psychological effect with an evaluation value of 1 or more, the gradation lighting of Example 3 is acceptable to the person and is comfortable. Each psychological effect of feeling relaxed and refreshing can be provided.
　実施例４は、前方方向に放射される第１光の色相が低青であり、上方方向に放射される第２光の色相が高黄であり、評価項目「受け入れられる」、評価項目「快適感」、評価項目「くつろぎ感」、評価項目「すっきり感」、評価項目「集中できる」、評価項目「入眠」および評価項目「眠気を覚ます」の各評価値は、それぞれ、１．７、１．１、１．１、０．５７、０．８５、－０．４２および０．４２である。 In Example 4, the hue of the first light emitted in the forward direction is low blue, the hue of the second light emitted in the upward direction is high yellow, the evaluation item “accepted”, and the evaluation item “comfortable” The evaluation values of “feel”, evaluation item “relaxation”, evaluation item “clean feeling”, evaluation item “concentrate”, evaluation item “sleeping” and evaluation item “wake up sleepiness” are 1.7, 1, respectively. .1, 1.1, 0.57, 0.85, -0.42 and 0.42.
　したがって、実施例４のグラデーション照明は、人に最も受け入れられ感を与えることができ、評価値１以上で心理効果があると認定すると、実施例４のグラデーション照明は、人に、受け入れられる、快適感およびくつろぎ感、という各心理効果を与えることができる。 Therefore, the gradation lighting of Example 4 can give the most acceptable feeling to a person, and if it is recognized that there is a psychological effect with an evaluation value of 1 or more, the gradation lighting of Example 4 is comfortable and acceptable to the person. Each psychological effect of feeling and relaxation can be given.
　実施例５は、前方方向に放射される第１光の色相が高紫であり、上方方向に放射される第２光の色相が高赤であり、評価項目「受け入れられる」、評価項目「快適感」、評価項目「くつろぎ感」、評価項目「すっきり感」、評価項目「集中できる」、評価項目「入眠」および評価項目「眠気を覚ます」の各評価値は、それぞれ、－２、－１．９、－１．９、－０．２９、－２、－２および２である。 In Example 5, the hue of the first light emitted in the forward direction is high purple, the hue of the second light emitted in the upward direction is high red, the evaluation item “accepted”, and the evaluation item “comfortable” The evaluation values of “feeling”, evaluation item “relaxation”, evaluation item “clean feeling”, evaluation item “concentrate”, evaluation item “sleeping” and evaluation item “wake up sleepiness” are -2, −1, respectively. .9, -1.9, -0.29, -2, -2 and 2.
　したがって、実施例５のグラデーション照明は、評価値１以上で心理効果があると認定すると、人に、眠気を覚ます、という各心理効果を与えることができる。 Therefore, if the gradation lighting of Example 5 is recognized as having a psychological effect with an evaluation value of 1 or more, each psychological effect of awakening a person to sleep can be given.
　実施例６は、前方方向に放射される第１光の色相が低赤であり、上方方向に放射される第２光の色相が高青緑であり、評価項目「受け入れられる」、評価項目「快適感」、評価項目「くつろぎ感」、評価項目「すっきり感」、評価項目「集中できる」、評価項目「入眠」および評価項目「眠気を覚ます」の各評価値は、それぞれ、１、１、０．８６、０．１４、０．２９、１．２９および－１．２９である。 In Example 6, the hue of the first light emitted in the forward direction is low red, and the hue of the second light emitted in the upward direction is high blue-green, and the evaluation item “accepted” and the evaluation item “ The evaluation values of “comfort”, evaluation item “relaxation”, evaluation item “clean feeling”, evaluation item “concentrate”, evaluation item “sleeping” and evaluation item “wake up sleepiness” are 1, 1, 0.86, 0.14, 0.29, 1.29 and -1.29.
　したがって、実施例６のグラデーション照明は、評価値１以上で心理効果があると認定すると、人に、受け入れられる、快適感および入眠、という各心理効果を与えることができる。 Therefore, if the gradation lighting of the sixth embodiment is recognized as having a psychological effect with an evaluation value of 1 or more, it can give a person a psychological effect such as an acceptable feeling of comfort and falling asleep.
　これに対し、比較例１は、前方方向に放射される第１光の色相が高紫であり、上方方向に放射される第２光の色相が低緑であり、評価項目「受け入れられる」、評価項目「快適感」、評価項目「くつろぎ感」、評価項目「すっきり感」、評価項目「集中できる」および評価項目「眠気を覚ます」の各評価値は、それぞれ、－０．８５、－１．４、－０．８６、－１．１、－０．７１および－０．７１である。 In contrast, in Comparative Example 1, the hue of the first light emitted in the forward direction is high purple, the hue of the second light emitted in the upward direction is low green, and the evaluation item “accepted”. The evaluation values of the evaluation item “comfort”, the evaluation item “relaxation”, the evaluation item “clean feeling”, the evaluation item “concentrate” and the evaluation item “wake up sleepiness” are −0.85 and −1, respectively. .4, -0.86, -1.1, -0.71 and -0.71.
　したがって、比較例１のグラデーション照明は、評価値１以上で心理効果があると認定すると、人に、いずれの心理効果も与えることができない。 Therefore, if the gradation lighting of Comparative Example 1 is recognized as having a psychological effect with an evaluation value of 1 or more, no psychological effect can be given to a person.
　なお、これら実施例１ないし実施例６および比較例１において、視野中心は、前方方向（放射角度領域の一部の第１領域の一例）とされ、視野周辺は、上方方向（前記第１領域と異なる前記放射角度領域の一部の第２領域の一例）とされた。 In Examples 1 to 6 and Comparative Example 1, the center of the field of view is the forward direction (an example of a first region that is part of the radiation angle region), and the periphery of the field of view is the upward direction (the first region). And an example of a second region that is a part of the radiation angle region.
　上述の結果から、人に受け入れられる光で放射角度領域をグラデーション照明するためには、照明装置ＬＤａの制御部２は、前記放射角度領域に照射される第１および第２光の最大彩度となる光の色度域が、ＣＩＥ１９７６ｕ’ｖ’色度図において、（ｕ’，ｖ’）の座標点Ｒ＿４（０．４４０、０．５０６）、Ｒ－ＯＲ＿４（０．４１９、０．５２１）、ＯＲ＿４（０．３９８、０．５３７）、ＯＲ－Ｙ＿４（０．３０２、０．５４９）、Ｙ＿４（０．２３７，０．５５７）、Ｙ－Ｇ＿４（０．２０４、０．５５９）、Ｇ＿４（０．０８５、０．５６８）、Ｇ－ＢＧ＿４（０．０９８、０．４８３）、ＢＧ＿４（０．１１２、０．３９８）、ＢＧ－Ｂ＿４（０．１２２、０．３６１）、Ｂ＿４（０．１７３、０．１６９）、Ｂ－Ｐ＿４（０．２４５、０．２３０）、Ｐ＿４（０．３１７、０．２９１）、Ｐ－Ｒ＿４（０．３７９、０．３９８）の各点を結ぶことによって得られる上限境界閉ループ線と、（ｕ’，ｖ’）の座標点Ｒ＿１（０．２６８、０．４８２）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）、ＯＲ＿１（０．２５７、０．４８９）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）、Ｙ＿１（０．２１７、０．４９４）、Ｙ－Ｇ＿１（０．２０９、０．４９５）、Ｇ＿１（０．１７９、０．４９７）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）、ＢＧ＿１（０．１８６、０．４５５）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）、Ｂ＿１（０．２０１、０．３９７）、Ｂ－Ｐ＿１（０．２１９、０．４１３）、Ｐ＿１（０．２３７、０．４２８）、Ｐ－Ｒ＿１（０．２５２、０．４５５）の各点を結ぶことによって得られる下限境界閉ループ線との間の第１色度領域に含まれるように、第１および第２ＬＥＤ光源１０－１、１０－２を制御すればよい。このような照明装置ＬＤａは、照明光の環境下に居る人に、照明光の環境下に居る人に、任意に所望の色相組合せを選択した場合も、心理的に受け入れられる好適な照明を提供できる。 From the above result, in order to perform gradation illumination of the radiation angle region with light accepted by a person, the control unit 2 of the illumination device LDa determines the maximum saturation of the first and second lights irradiated on the radiation angle region. In the CIE 1976 u′v ′ chromaticity diagram, the chromaticity range of the light becomes (u ′, v ′) coordinate points R_4 (0.440, 0.506), R-OR_4 (0.419, 0.521). , OR_4 (0.398, 0.537), OR-Y_4 (0.302, 0.549), Y_4 (0.237, 0.557), Y-G_4 (0.204, 0.559), G_4 (0.085, 0.568), G-BG_4 (0.098, 0.483), BG_4 (0.112, 0.398), BG-B_4 (0.122, 0.361), B_4 (0 .173, 0.169), BP_4 ( .245, 0.230), P_4 (0.317, 0.291), PR_4 (0.379, 0.398), and an upper limit boundary closed loop line obtained by connecting the points (u ′, v ′) coordinate points R_1 (0.268, 0.482), R-OR_1 (0.262, 0.485), OR_1 (0.257, 0.489), OR-Y_1 (0.233, 0). 492), Y_1 (0.217, 0.494), Y-G_1 (0.209, 0.495), G_1 (0.179, 0.497), G-BG_1 (0.182, 0.476). ), BG_1 (0.186, 0.455), BG-B_1 (0.188, 0.445), B_1 (0.201, 0.397), BP_1 (0.219, 0.413), P_1 (0.237, 0.428), PR_1 (0. 52, 0.455), the first and second LED light sources 10-1 and 10-2 are controlled so as to be included in the first chromaticity region between the lower limit boundary closed loop line obtained by connecting the points. That's fine. Such an illuminating device LDa provides suitable illumination that is psychologically acceptable to a person who is in an environment of illumination light and who is in an environment of illumination light even when a desired hue combination is arbitrarily selected. it can.
　また、人に快適感を与える光で放射角度領域をグラデーション照明するためには、照明装置ＬＤａの制御部２は、前記放射角度領域の一部の第１領域に照射される第１光、および、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射される第２光が、ＣＩＥ１９７６ｕ’ｖ’色度図において、前記第１色度領域に含まれる下記（２Ａ）ないし（２Ｍ）のいずれかの条件を満たすように、第１および第２ＬＥＤ光源１０－１、１０－２を制御すればよい。このような照明装置ＬＤａは、照明光の環境下に居る人に、快適感という心理効果を好適に与えることができる。 In addition, in order to perform gradation illumination of the radiation angle region with light that gives a comfortable feeling to the person, the control unit 2 of the illumination device LDa includes first light that is applied to a first region of a part of the radiation angle region, and In the CIE 1976 u′v ′ chromaticity diagram, the second light irradiated to a part of the second region of the radiation angle region different from the first region is included in the first chromaticity region (2A) to (2A) to The first and second LED light sources 10-1 and 10-2 may be controlled so as to satisfy any one of the conditions (2M). Such an illuminating device LDa can suitably give a psychological effect of comfort to a person who is in an environment of illumination light.
　条件（２Ａ）は、前記第１領域に照射される第１光が下記によって定義される白色領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｂ）は、前記第１領域に照射される第１光が下記によって定義される低彩度青領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｃ）は、前記第１領域に照射される第１光が下記によって定義される低彩度青緑領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｄ）は、前記第１領域に照射される第１光が下記によって定義される低彩度緑領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｅ）は、前記第１領域に照射される第１光が下記によって定義される低彩度黄領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｆ）は、前記第１領域に照射される第１光が下記によって定義される低彩度橙領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｇ）は、前記第１領域に照射される第１光が下記によって定義される低彩度赤領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｈ）は、前記第１領域に照射される第１光が下記によって定義される低彩度紫領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｉ）は、前記第１領域に照射される第１光が下記によって定義される高彩度青領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｊ）は、前記第１領域に照射される第１光が下記によって定義される高彩度青緑領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｋ）は、前記第１領域に照射される第１光が下記によって定義される高彩度緑領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｌ）は、前記第１領域に照射される第１光が下記によって定義される高彩度黄領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｍ）は、前記第１領域に照射される第１光が下記によって定義される高彩度橙領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。 The condition (2A) is that the first light irradiated to the first region is included in a white region defined by the following, and the second light irradiated to the second region is defined by the following low color Low blue area, Low chroma blue area, Low chroma green area, Low chroma yellow area, Low chroma orange area, Low chroma red area, Low chroma purple area, High chroma blue area, High chroma blue area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. Condition (2B) is that the first light irradiated to the first region is included in the low saturation blue region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue-green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. Condition (2C) is that the first light irradiated to the first region is included in a low-saturation blue-green region defined by the following, and the second light irradiated to the second region is defined by the following White area, low saturation blue area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. The condition (2D) is that the first light irradiated to the first region is included in the low-saturation green region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. Condition (2E) is that the first light irradiated to the first region is included in the low saturation yellow region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue-green area, low saturation green area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. Condition (2F) is that the first light irradiated to the first region is included in the low-saturation orange region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. Condition (2G) is that the first light irradiated to the first region is included in the low saturation red region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. Condition (2H) is that the first light irradiated to the first region is included in the low-saturation purple region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. Condition (2I) is that the first light irradiated to the first region is included in a high saturation blue region defined by the following, and the second light irradiated to the second region is defined by the following white Area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. Condition (2J) is that the first light irradiated on the first region is included in a high-saturation blue-green region defined by the following, and the second light irradiated on the second region is defined by the following: White area, Low chroma blue area, Low chroma blue area, Low chroma green area, Low chroma yellow area, Low chroma orange area, Low chroma red area, Low chroma purple area, High chroma blue area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. Condition (2K) is that the first light irradiated to the first region is included in a high-saturation green region defined by the following, and the second light irradiated to the second region is defined by the following white Area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation It is included in each of the blue-green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. Condition (2L) is that the first light irradiated to the first region is included in a high saturation yellow region defined by the following, and the second light irradiated to the second region is defined by the following white Area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation It is included in each of the blue-green region, high-saturation green region, high-saturation orange region, high-saturation red region, and high-saturation purple region. Condition (2M) is that the first light irradiated to the first region is included in a high-saturation orange region defined by the following, and the second light irradiated to the second region is defined by the following white Area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation It is included in each of the blue-green region, the high-saturation green region, the high-saturation yellow region, the high-saturation red region, and the high-saturation purple region.
　すなわち、視野中心となる、前方方向（放射角度領域の一部の第１領域の一例）では、不快な高彩度青領域、高彩度赤領域の照明光は、避けるべきである。しかし、視野周辺となる、上方方向（前記第１領域と異なる前記放射角度領域の一部の第２領域の一例）では、グラデーション照明の演出効果、心理効果を高めるために、高彩度青領域、高彩度赤領域の照明光を使用することが効果的な場合がある。 That is, in the forward direction (an example of the first region that is a part of the radiation angle region) that is the center of the visual field, unpleasant illumination light in the high saturation blue region and the high saturation red region should be avoided. However, in the upward direction (an example of a second region that is part of the radiation angle region different from the first region), which is around the visual field, a high-saturation blue region, It may be effective to use illumination light in the red region.
　また、人にくつろぎ感を与える光で放射角度領域をグラデーション照明するためには、照明装置ＬＤａの制御部２は、前記放射角度領域の一部の第１領域に照射される第１光、および、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射される第２光が、ＣＩＥ１９７６ｕ’ｖ’色度図において、前記第１色度領域に含まれる下記（３Ａ）ないし（３Ｍ）のいずれかの条件を満たすように、第１および第２ＬＥＤ光源１０－１、１０－２を制御すればよい。このような照明装置ＬＤａは、照明光の環境下に居る人に、くつろぎ感という心理効果を好適に与えることができる。 In addition, in order to perform gradation illumination of the radiation angle region with light that gives a feeling of relaxation to the person, the control unit 2 of the illumination device LDa includes first light that is applied to a part of the first region of the radiation angle region, and In the CIE 1976 u′v ′ chromaticity diagram, the following second (3A) to (3A) to (B) are included in the CIE 1976 u′v ′ chromaticity diagram. The first and second LED light sources 10-1 and 10-2 may be controlled so as to satisfy any one of the conditions (3M). Such an illuminating device LDa can suitably give a psychological effect of a feeling of relaxation to a person who is in an environment of illumination light.
　条件（３Ａ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される白色領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、条件（３Ｂ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青緑領域、低彩度橙領域、低彩度赤領域、高彩度青領域、高彩度緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、条件（３Ｃ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域および高彩度橙領域の各領域のいずれかに含まれることであり、条件（３Ｄ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、高彩度青領域、高彩度青緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、条件（３Ｅ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度橙領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度橙領域および高彩度紫領域の各領域のいずれかに含まれることであり、条件（３Ｆ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度橙領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域および高彩度緑領域の各領域のいずれかに含まれることであり、条件（３Ｇ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度赤領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度黄領域、低彩度橙領域、高彩度青緑領域、高彩度緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、条件（３Ｈ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度紫領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域、低彩度青緑領域、低彩度赤領域および高彩度黄領域の各領域のいずれかに含まれることであり、条件（３Ｉ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域および高彩度緑領域の各領域のいずれかに含まれることであり、条件（３Ｊ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、条件（３Ｋ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域および高彩度青領域の各領域のいずれかに含まれることであり、条件（３Ｌ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域、低彩度青緑領域、高彩度青領域および高彩度橙領域の各領域のいずれかに含まれることであり、条件（３Ｍ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度橙領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域に含まれることである。 The condition (3A) is that the first light irradiated to a part of the first region of the radiation angle region is included in a white region defined by the following, and is one of the radiation angle regions different from the first region. The second light emitted to the second region of the part is defined by the following: low saturation blue region, low saturation blue-green region, low saturation green region, low saturation red region, low saturation purple region, high saturation It is included in any one of the blue region, the high saturation blue-green region, the high saturation green region, and the high saturation yellow region, and the condition (3B) is that the first region irradiated to a part of the first radiation angle region The second light that is included in the low-saturation blue region defined by the following and is applied to the second region that is a part of the radiation angle region different from the first region is a low that is defined by the following Saturation blue-green region, low saturation orange region, low saturation red region, high saturation blue region, high saturation green region And the condition (3C) is that the first light irradiated to a part of the first region of the radiation angle region is defined by the following: The second light included in the blue-green region and irradiated to a second region that is a part of the radiation angle region different from the first region is a white region, a low saturation blue region, and a low saturation defined by the following: Green area, Low saturation yellow area, Low saturation orange area, Low saturation red area, Low saturation purple area, High saturation blue area, High saturation blue green area, High saturation green area, High saturation yellow area and High saturation orange area The condition (3D) is included in any one of the regions, and the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation green region defined by the following: And the 2nd light irradiated to a part 2nd area | region of the said radiation | emission angle area | region different from the said 1st area | region White area, low saturation blue area, low saturation blue green area, low saturation yellow area, low saturation orange area, low saturation red area, high saturation blue area, high saturation blue green area and high saturation yellow defined by The condition (3E) is that the first light applied to a part of the first region of the radiation angle region is in a low chroma yellow region defined by the following: A white region, a low saturation blue region, and a low saturation blue-green region, wherein the second light that is included and is applied to a part of the second region of the radiation angle region different from the first region is defined as follows: , Low saturation green area, low saturation orange area, low saturation purple area, high saturation blue area, high saturation blue green area, high saturation green area, high saturation orange area, and high saturation purple area. Yes, the condition (3F) is that the first light irradiated to a part of the first region of the radiation angle region is The second light that is included in the low saturation orange region defined by the following and is applied to the second region that is a part of the radiation angle region different from the first region is a white region that is defined by the following: It is included in each of the saturation blue area, low saturation blue-green area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, and high saturation green area. (3G) is the radiation angle region different from the first region, in which the first light irradiated to a part of the first region of the radiation angle region is included in the low saturation red region defined by the following: The second light emitted to a part of the second region is defined as follows: white region, low saturation blue region, low saturation blue-green region, low saturation yellow region, low saturation orange region, high saturation blue It is included in any one of the green area, the high saturation green area, and the high saturation yellow area. (3H) is the radiation angle region different from the first region, wherein the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation purple region defined by the following: The second light emitted to a part of the second region is included in any of the low saturation blue region, the low saturation blue-green region, the low saturation red region, and the high saturation yellow region defined by the following: The condition (3I) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high saturation blue region defined by the following, and is different from the first region: The second light irradiated to a part of the second region of the radiation angle region is included in any of the white region and the high-saturation green region defined by the following, and the condition (3J) is: The first light irradiated to a part of the first region of the radiation angle region is as follows. The second light that is included in the defined high-saturation blue-green region and is applied to a second region that is part of the radiation angle region that is different from the first region is a white region that is defined by the following, a low-saturation blue Area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation green area, and high saturation yellow area The condition (3K) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation green region defined by: The second light irradiated to a part of the second region of the different radiation angle region is included in any one of the low saturation blue region and the high saturation blue region defined by the following, and the condition (3L ), The first light irradiated to a part of the first region of the radiation angle region is A low saturation blue region defined by the following: the second light that is included in the high saturation yellow region defined by, and is applied to a second region of the radiation angle region that is different from the first region. The condition (3M) is included in any one of the saturation blue-green region, the high saturation blue region, and the high saturation orange region, and the condition (3M) is the first light irradiated to a part of the first region of the radiation angle region Is included in the high-saturation orange region defined by the following, and the low-saturation blue region in which the second light irradiated to a second region of the radiation angle region different from the first region is defined by the following It is included in.
　また、人にすっきり感を与える光で放射角度領域をグラデーション照明するためには、照明装置ＬＤａの制御部２は、前記放射角度領域の一部の第１領域に照射される第１光、および、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射される第２光が、ＣＩＥ１９７６ｕ’ｖ’色度図において、前記第１色度領域に含まれる下記（４Ａ）ないし（４Ｊ）のいずれかの条件を満たすように、第１および第２ＬＥＤ光源１０－１、１０－２を制御すればよい。このような照明装置ＬＤａは、照明光の環境下に居る人に、すっきり感という心理効果を好適に与えることができる。 Further, in order to perform gradation illumination of the radiation angle region with light that gives a clean feeling to the person, the control unit 2 of the illumination device LDa includes first light that is applied to a first region of a part of the radiation angle region, and In the CIE 1976 u′v ′ chromaticity diagram, the second light irradiated to a part of the second region of the radiation angle region different from the first region is included in the first chromaticity region (4A) to (4A) to The first and second LED light sources 10-1 and 10-2 may be controlled so as to satisfy any one of the conditions (4J). Such an illuminating device LDa can suitably give a psychological effect of a refreshing feeling to a person who is in an environment of illumination light.
　条件（４Ａ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された白色領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青領域、高彩度青領域、高彩度青緑領域、高彩度緑領域および高彩度紫領域の各領域のいずれかに含まれることであり、条件（４Ｂ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青緑領域、高彩度青領域、高彩度青緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、条件（４Ｃ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、低彩度緑領域、低彩度黄領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、条件（４Ｄ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、高彩度青領域、高彩度青緑領域および高彩度紫領域の各領域のいずれかに含まれることであり、条件（４Ｅ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度紫領域、高彩度青領域、高彩度青緑領域および高彩度緑領域の各領域のいずれかに含まれることであり、条件（４Ｆ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度紫領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青領域、および低彩度青緑領域の各領域のいずれかに含まれることであり、条件（４Ｇ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度緑領域および高彩度緑領域の各領域のいずれかに含まれることであり、条件（４Ｈ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度緑領域、高彩度橙領域および高彩度赤領域の各領域のいずれかに含まれることであり、条件（４Ｉ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青領域、高彩度青領域、高彩度青緑領域および高彩度紫領域の各領域のいずれかに含まれることであり、条件（４Ｊ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、高彩度青領域、高彩度青緑領域および高彩度橙領域の各領域のいずれかに含まれることである。 The condition (4A) is that a part of the radiation angle region different from the first region is included in the defined white region where the first light irradiated to a part of the first region of the radiation angle region is included. The second light emitted to the second region is included in any one of the defined low-saturation blue region, high-saturation blue region, high-saturation blue-green region, high-saturation green region, and high-saturation purple region. The condition (4B) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low saturation blue region and the radiation angle is different from the first region. The second light emitted to the second region which is a part of the region is included in any of the defined low saturation blue-green region, high saturation blue region, high saturation blue-green region and high saturation yellow region. Yes, the condition (4C) is applied to a part of the first region of the radiation angle region. The defined white region includes a second light that is included in the defined low-saturation blue-green region and is irradiated to a second region that is a part of the radiation angle region different from the first region. , Low saturation blue region, low saturation green region, low saturation yellow region, low saturation purple region, high saturation blue region, high saturation blue green region, high saturation green region and high saturation yellow region The condition (4D) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation green region and is different from the first region. Any one of the regions of the defined white region, low saturation blue region, high saturation blue region, high saturation blue-green region, and high saturation purple region when the second light emitted to a second region of a part of the radiation angle region The condition (4E) is included in the first region of the radiation angle region. The second light that is included in the defined low saturation yellow region and is applied to a second region that is a part of the radiation angle region different from the first region is the defined low light. It is included in each of the saturation blue area, low saturation blue green area, low saturation green area, low saturation purple area, high saturation blue area, high saturation blue green area, and high saturation green area. (4F) indicates that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation purple region and the radiation angle region is different from the first region. The second light applied to a part of the second region is included in any of the defined low saturation blue region and low saturation blue-green region, and the condition (4G) is: The first light applied to a first region of a part of the radiation angle region is included in the defined high-saturation blue region; and The second light irradiated to a part of the second region of the radiation angle region different from the first region is included in any one of the defined low saturation green region and high saturation green region, Condition (4H) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high-saturation blue-green region, and the radiation angle region is different from the first region. The second light emitted to some of the second areas is the defined white area, low chroma blue area, low chroma blue green area, low chroma green area, low chroma yellow area, and low chroma orange. Area, a low saturation red area, a low saturation purple area, a high saturation green area, a high saturation orange area, and a high saturation red area, and the condition (4I) is one of the emission angle areas. The first light emitted to the first region of the part is included in the defined high-saturation green region, and the first region The second light irradiated to a part of the second region of the different radiation angle region is included in any of the defined low saturation blue region, high saturation blue region, high saturation blue-green region, and high saturation purple region. The condition (4J) is that the first light applied to a part of the first region of the radiation angle region is included in the defined high saturation yellow region and is different from the first region. The second light emitted to the second region that is a part of the radiation angle region is defined as the white region, the low saturation blue region, the low saturation blue-green region, the low saturation green region, the high saturation blue region, and the high saturation blue. It is included in each of the green region and the high saturation orange region.
　また、人に集中できる光で放射角度領域をグラデーション照明するためには、照明装置ＬＤａの制御部２は、前記放射角度領域の一部の第１領域に照射される第１光、および、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射される第２光が、ＣＩＥ１９７６ｕ’ｖ’色度図において、前記第１色度領域に含まれる下記（５Ａ）ないし（５Ｌ）のいずれかの条件を満たすように、第１および第２ＬＥＤ光源１０－１、１０－２を制御すればよい。このような照明装置ＬＤａは、照明光の環境下に居る人に、気の散らない、集中できるという心理効果を好適に与えることができる。 Further, in order to perform gradation illumination of the radiation angle region with light that can be concentrated on a person, the control unit 2 of the illumination device LDa includes the first light that is applied to a first region that is a part of the radiation angle region, and In the CIE 1976 u′v ′ chromaticity diagram, the second light irradiated to a part of the second region of the radiation angle region different from the first region is included in the first chromaticity region (5A) to (5L) below. The first and second LED light sources 10-1 and 10-2 may be controlled so as to satisfy any one of the conditions (1). Such an illuminating device LDa can suitably give a psychological effect of being able to concentrate on a person who is in an environment of illumination light without being distracted.
　条件（５Ａ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された白色領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、高彩度青領域、高彩度青緑領域、高彩度緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、条件（５Ｂ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、高彩度青領域、高彩度青緑領域、高彩度緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、条件（５Ｃ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、低彩度緑領域、低彩度黄領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域および高彩度紫領域の各領域のいずれかに含まれることであり、条件（５Ｄ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、高彩度青領域および高彩度青緑領域の各領域のいずれかに含まれることであり、条件（５Ｅ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、低彩度青緑領域、低彩度赤領域、高彩度青領域、高彩度青緑領域、高彩度緑領域および高彩度赤領域の各領域のいずれかに含まれることであり、条件（５Ｆ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度橙領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青領域、高彩度青領域、高彩度青緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、条件（５Ｇ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度赤領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域および高彩度黄領域の各領域のいずれかに含まれることであり、条件（５Ｈ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度紫領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された高彩度青領域に含まれることであり、条件（５Ｉ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度緑領域、低彩度黄領域、低彩度橙領域および高彩度黄領域の各領域のいずれかに含まれることであり、条件（５Ｊ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、低彩度緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度紫領域、高彩度青領域および高彩度黄領域の各領域のいずれかに含まれることであり、条件（５Ｋ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された高彩度青領域に含まれることであり、条件（５Ｌ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青領域、高彩度青領域および高彩度青緑領域の各領域のいずれかに含まれることである。 The condition (5A) is that a part of the radiation angle region that is different from the first region in which the first light irradiated to a part of the first region of the radiation angle region is included in the defined white region. The second light emitted to the second region of the low-saturation blue region, low-saturation blue-green region, low-saturation green region, low-saturation yellow region, high-saturation blue region, high-saturation blue-green region, The condition (5B) is that the first light irradiated to a part of the first region of the radiation angle region is defined as low as defined above. The second light included in the saturation blue region and irradiated to a second region that is a part of the radiation angle region different from the first region is the defined white region, low saturation blue-green region, low Saturated green region, low chroma yellow region, low chroma orange region, low chroma red region, high chroma blue region, high chroma blue-green region, high chroma The condition (5C) is that the first light irradiated to a part of the first area of the radiation angle area is defined as the low saturation. Second light included in a blue-green region and irradiated to a second region of a part of the radiation angle region different from the first region is the defined white region, low chroma blue region, and low chroma It is included in one of the following areas: green area, low saturation yellow area, low saturation purple area, high saturation blue area, high saturation blue green area, high saturation green area, high saturation yellow area, and high saturation purple area. 5D) is an example of one of the radiation angle regions different from the first region, in which the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation green region. The second light emitted to the second region of the part is defined as the white region, the low saturation blue region, and the high saturation. The condition (5E) is that the first light irradiated to a part of the first region of the radiation angle region is defined as low as defined above. The second light that is included in the saturation yellow region and is applied to a part of the second region of the radiation angle region different from the first region is defined as the white region, the low saturation blue region, and the low saturation. A blue-green region, a low-saturation red region, a high-saturation blue region, a high-saturation blue-green region, a high-saturation green region, and a high-saturation red region, and the condition (5F) is the emission angle region The first light applied to a part of the first region is included in the defined low-saturation orange region and applied to a part of the second region of the radiation angle region different from the first region. The second light is the low saturation blue region, high saturation blue region, high saturation blue-green region and high saturation defined above. The condition (5G) is that the first light irradiated to a part of the first region of the radiation angle region is in the defined low saturation red region. The second light that is included and is applied to a part of the second region of the radiation angle region different from the first region is included in any of the defined white region and high saturation yellow region. And the condition (5H) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation purple region and is different from the first region. The second light applied to the second region that is a part of the radiation angle region is included in the defined high saturation blue region, and the condition (5I) is that the first region that is a part of the radiation angle region is included in the first region. The irradiated first light is included in the defined high saturation blue region and is different from the first region. Each region of the defined white region, low saturation green region, low saturation yellow region, low saturation orange region, and high saturation yellow region when the second light applied to a second region of a part of the radiation angle region is defined And the condition (5J) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high-saturation blue-green region, and The second light emitted to a second region that is a part of the radiation angle region different from the first region is the defined white region, low chroma blue region, low chroma green region, low chroma green region, low A saturation yellow region, a low saturation orange region, a low saturation purple region, a high saturation blue region, and a high saturation yellow region, and the condition (5K) is a part of the radiation angle region The first light emitted to the first region is included in the defined high-saturation green region and is different from the first region. The second light applied to a second region of the radiation angle region is included in the defined high saturation blue region, and the condition (5L) is a first region of the radiation angle region. The second light irradiated to the second region which is included in the defined high saturation yellow region and is part of the radiation angle region different from the first region is defined as It is included in any one of the low saturation blue region, the high saturation blue region, and the high saturation blue-green region.
　また、人に入眠し易い光で放射角度領域をグラデーション照明するためには、照明装置ＬＤａの制御部２は、前記放射角度領域の一部の第１領域に照射される第１光、および、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射される第２光が、ＣＩＥ１９７６ｕ’ｖ’色度図において、前記第１色度領域に含まれる下記（６Ａ）ないし（６Ｎ）のいずれかの条件を満たすように、第１および第２ＬＥＤ光源１０－１、１０－２を制御すればよい。このような照明装置ＬＤａは、照明光の環境下に居る人に、眠気という心理効果を好適に与えることができる。 In addition, in order to perform gradation illumination of the radiation angle region with light that is likely to fall asleep to a person, the control unit 2 of the illumination device LDa includes a first light that is applied to a first region of a part of the radiation angle region, and In the CIE 1976 u′v ′ chromaticity diagram, the second light applied to a part of the second region of the radiation angle region different from the first region is included in the first chromaticity region (6A) to ( The first and second LED light sources 10-1 and 10-2 may be controlled so as to satisfy any one of the conditions 6N). Such an illuminating device LDa can suitably give a psychological effect of sleepiness to a person who is in an environment of illumination light.
　条件（６Ａ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される白色領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、条件（６Ｂ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度赤領域、低彩度紫領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域および高彩度赤領域の各領域のいずれかに含まれることであり、条件（６Ｃ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度黄領域、低彩度橙領域、低彩度紫領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることであり、条件（６Ｄ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青緑領域、低彩度橙領域、高彩度青緑領域および高彩度赤領域の各領域のいずれかに含まれることであり、条件（６Ｅ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度緑領域、低彩度橙領域、低彩度赤領域、高彩度青領域、高彩度黄領域および高彩度橙領域の各領域のいずれかに含まれることであり、条件（６Ｆ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度橙領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度赤領域、低彩度紫領域、高彩度青領域および高彩度黄領域の各領域のいずれかに含まれることであり、条件（６Ｇ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度赤領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域および高彩度青緑領域の各領域のいずれかに含まれることであり、条件（６Ｈ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度紫領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、高彩度青領域、高彩度黄領域および高彩度赤領域の各領域のいずれかに含まれることであり、条件（６Ｉ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度緑領域、低彩度橙領域および高彩度橙領域の各領域のいずれかに含まれることであり、条件（６Ｊ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度緑域に含まれることであり、条件（６Ｋ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される高彩度赤領域に含まれることであり、条件（６Ｌ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度紫領域および高彩度橙領域の各領域のいずれかに含まれることであり、条件（６Ｍ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度橙領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域、低彩度青緑領域、低彩度黄領域および高彩度青領域の各領域のいずれかに含まれることであり、条件（６Ｎ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度紫領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度緑領域に含まれることである。 The condition (6A) is that the first light irradiated to a part of the first region of the radiation angle region is included in a white region defined by the following, and is one of the radiation angle regions different from the first region. The second light emitted to the second region of the area is defined by the following: low saturation green region, low saturation yellow region, low saturation orange region, low saturation red region, low saturation purple region, high saturation blue The condition (6B) is that the first light irradiated to a part of the first region of the radiation angle region is defined by the following: The second light included in the saturation blue region and irradiated to a second region of the radiation angle region that is different from the first region is a white region defined by the following, a low saturation blue-green region, Low chroma green area, low chroma yellow area, low chroma red area, low chroma purple area, high chroma blue-green area, high chroma It is included in each of the green region, the high saturation yellow region, the high saturation orange region, and the high saturation red region, and the condition (6C) is a condition that the first region irradiated to a part of the first region of the radiation angle region The second light that is included in the low-saturation blue-green region defined by the following and is irradiated to a second region that is part of the radiation angle region different from the first region is a low defined by A saturation yellow region, a low saturation orange region, a low saturation purple region, a high saturation orange region, a high saturation red region, and a high saturation purple region, and the condition (6D) is the emission angle The first light applied to a part of the first region is included in the low-saturation green region defined by the following, and the second light is part of the radiation angle region different from the first region. The low-saturation blue-green region defined by It is included in each of the orange region, the high saturation blue-green region, and the high saturation red region, and the condition (6E) is that the first light irradiated to a part of the first region of the radiation angle region is as follows: A low-saturation green region in which the second light that is included in the low-saturation yellow region defined by, and is irradiated to a second region that is part of the radiation angle region different from the first region is defined by , A low-saturation orange region, a low-saturation red region, a high-saturation blue region, a high-saturation yellow region, and a high-saturation orange region, and the condition (6F) is a part of the radiation angle region The first light irradiated to the first region of the first light is included in the low-saturation orange region defined by the following, and the second light is irradiated to a second region of the radiation angle region different from the first region. Low saturation blue area, low saturation blue-green area, low saturation defined by It is included in each of the green region, the low saturation yellow region, the low saturation red region, the low saturation purple region, the high saturation blue region, and the high saturation yellow region, and the condition (6G) is the emission angle The first light irradiated to a part of the first region is included in the low saturation red region defined by the following, and the part of the second region of the radiation angle region is different from the first region. The irradiated second light is defined by the following white areas, low chroma blue areas, low chroma blue green areas, low chroma green areas, low chroma yellow areas, low chroma orange areas, and high chroma blue green areas. The condition (6H) is that the first light irradiated to a part of the first area of the radiation angle area is included in the low-saturation purple area defined by the following: And the second light irradiated to a part of the second region of the radiation angle region different from the first region is Included in each of the low saturation blue-green region, low saturation yellow region, low saturation orange region, low saturation red region, high saturation blue region, high saturation yellow region and high saturation red region defined by The condition (6I) is that the first light irradiated to a first region of a part of the radiation angle region is included in a high saturation blue region defined by the following, and is different from the first region. The second light emitted to the second region that is a part of the angular region is included in any of the white region, the low saturation green region, the low saturation orange region, and the high saturation orange region defined by the following. The condition (6J) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation blue-green region defined by the following, and is different from the first region: The second light applied to the second region that is a part of the radiation angle region is as follows. The condition (6K) is that the first light irradiated to a part of the first region of the radiation angle region is in the high saturation green region defined by the following: The second light that is included and is applied to a part of the second region of the radiation angle region different from the first region is included in a high saturation red region defined by the following, and the condition (6L) is The second light of the part of the radiation angle region different from the first region is included in the high saturation yellow region defined by the following, and the first light irradiated to the part of the first region of the radiation angle region The second light applied to the region is included in any of the white region, the low saturation purple region, and the high saturation orange region defined by the following, and the condition (6M) The first light emitted to some of the first areas is defined by A low saturation blue region and a low saturation defined by the following: the second light that is included in the high saturation orange region and is irradiated to a second region of the radiation angle region that is different from the first region; The condition (6N) is included in any one of the blue-green region, the low saturation yellow region, and the high saturation blue region, and the condition (6N) is the first light applied to a part of the first region of the radiation angle region. Is included in the high-saturation purple region defined by the following, and the second light irradiated to a part of the second region of the radiation angle region different from the first region is a low-saturation green region defined by the following It is included in.
　また、人に眠気を覚ます光で放射角度領域をグラデーション照明するためには、照明装置ＬＤａの制御部２は、放射角度領域の一部の第１領域に照射された第１および第２光と前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第１および第２光が、ＣＩＥ１９７６ｕ’ｖ’色度図において、下記（７Ａ）ないし（７Ｉ）のいずれかの条件を満たすように、第１および第２ＬＥＤ光源１０－１、１０－２を制御すればよい。このような照明装置ＬＤａは、照明光の環境下に居る人に、眠気を覚ますという心理効果を好適に与えることができる。 Further, in order to perform gradation illumination of the radiation angle region with the light that makes the person sleepy, the control unit 2 of the illumination device LDa includes the first and second lights irradiated to a part of the first region of the radiation angle region. In the CIE 1976 u′v ′ chromaticity diagram, the first and second lights irradiated to a part of the second region of the radiation angle region different from the first region are any of the following (7A) to (7I) The first and second LED light sources 10-1 and 10-2 may be controlled so as to satisfy the condition. Such an illuminating device LDa can suitably give a psychological effect of awakening sleepiness to a person in an environment of illumination light.
　条件（７Ａ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される白色領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される高彩度紫領域に含まれることであり、条件（７Ｂ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される高彩度黄領域に含まれることであり、条件（７Ｃ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度赤領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される高彩度橙領域に含まれることであり、条件（７Ｄ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度紫領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される高彩度紫領域に含まれることであり、条件（７Ｅ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度黄領域、低彩度赤領域、高彩度黄領域および高彩度橙領域の各領域のいずれかに含まれることであり、条件（７Ｆ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される高彩度緑領域および高彩度赤領域の各領域のいずれかに含まれることであり、条件（７Ｇ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度橙領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度紫領域、高彩度赤および高彩度紫領域の各領域のいずれかに含まれることであり、条件（７Ｈ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度赤領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度橙領域、高彩度青領域、高彩度緑領域、高彩度黄領域および高彩度橙領域の各領域のいずれかに含まれることであり、条件（７Ｉ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度紫領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域、低彩度青緑領域、低彩度黄領域、低彩度紫領域、高彩度青領域、高彩度黄領域、高彩度橙領域および高彩度赤領域の各領域のいずれかに含まれることである。 The condition (7A) is that the first light irradiated to a part of the first region of the radiation angle region is included in a white region defined by the following, and is one of the radiation angle regions different from the first region. The second light irradiated to the second region of the part is included in the high saturation purple region defined by the following, and the condition (7B) is that the first region irradiated to a part of the first region of the radiation angle region is The second light that is included in the low-saturation blue-green region defined by the following and is applied to the second region that is part of the radiation angle region different from the first region is defined by the following: The condition (7C) is that the first light irradiated to a part of the first area of the radiation angle area is included in a low saturation red area defined by the following: Irradiating a second region of the radiation angle region different from the first region. The second light is included in the high-saturation orange region defined by the following, and the condition (7D) is that the first light irradiated to a part of the first region of the radiation angle region is defined by the following: The second light that is included in the low-saturation purple region and is applied to the second region that is part of the radiation angle region different from the first region is included in the high-saturation purple region defined by Yes, the condition (7E) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high saturation green region defined by the following, and the radiation angle is different from the first region The second light emitted to the second region that is a part of the region is included in any of the low saturation yellow region, the low saturation red region, the high saturation yellow region, and the high saturation orange region defined by the following: And the condition (7F) is a part of the radiation angle region. The first light irradiated to the first region is included in the high saturation yellow region defined by the following, and the second light irradiated to a part of the second region of the radiation angle region different from the first region is It is included in each of the high-saturation green region and the high-saturation red region defined by the following, and the condition (7G) is that the first light irradiated to a part of the first region of the radiation angle region is A low-saturation purple region defined by the following: a second light that is included in a high-saturation orange region defined by: The high saturation red and the high saturation purple region are included in any one of the regions, and the condition (7H) is that the first light irradiated to a part of the first region of the radiation angle region is defined by the following high saturation A red region and the first region; The second light applied to a second region of a part of the different radiation angle region is a low saturation orange region, a high saturation blue region, a high saturation green region, a high saturation yellow region and a high saturation orange region defined by the following: The condition (7I) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation purple region defined by: The second light irradiated to a part of the second region of the radiation angle region different from the one region is defined by the following low saturation blue region, low saturation blue-green region, low saturation yellow region, and low saturation It is included in any one of the purple region, the high saturation blue region, the high saturation yellow region, the high saturation orange region, and the high saturation red region.
　なお、上述において、各領域は、次のように定義される。図１８において、白色領域は、（ｕ’，ｖ’）の座標点Ｒ＿１（０．２６８、０．４８２）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）、ＯＲ＿１（０．２５７、０．４８９）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）、Ｙ＿１（０．２１７、０．４９４）、Ｙ－Ｇ＿１（０．２０９、０．４９５）、Ｇ＿１（０．１７９、０．４９７）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）、ＢＧ＿１（０．１８６、０．４５５）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）、Ｂ＿１（０．２０１、０．３９７）、Ｂ－Ｐ＿１（０．２１９、０．４１３）、Ｐ＿１（０．２３７、０．４２８）、Ｐ－Ｒ＿１（０．２５２、０．４５５）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 In the above description, each area is defined as follows. In FIG. 18, white areas are coordinate points R_1 (0.268, 0.482), R-OR_1 (0.262, 0.485), OR_1 (0.257, 0. 489), OR-Y_1 (0.233, 0.492), Y_1 (0.217, 0.494), Y-G_1 (0.209, 0.495), G_1 (0.179, 0.497) , G-BG_1 (0.182, 0.476), BG_1 (0.186, 0.455), BG-B_1 (0.188, 0.445), B_1 (0.201, 0.397), B -P_1 (0.219, 0.413), P_1 (0.237, 0.428), P_R_1 (0.252, 0.455) is an inner region surrounded by a closed loop line connecting points.
　低彩度赤領域は、（ｕ’，ｖ’）の座標点Ｒ－ＯＲ＿３（０．３６７、０．５０９）、Ｒ＿３（０．３８２、０．４９８）、Ｐ－Ｒ＿３（０．３３６、０．４１７）、Ｐ－Ｒ＿１（０．２５２、０．４５５）、Ｒ＿１（０．２６８、０．４８２）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The low-saturation red areas are represented by coordinate points R-OR_3 (0.367, 0.509), R_3 (0.382, 0.498), and PR_3 (0.336, 0) of (u ′, v ′). .417), P-R_1 (0.252, 0.455), R_1 (0.268, 0.482), and R-OR_1 (0.262, 0.485) are surrounded by a closed loop line. The inner area.
　低彩度橙領域は、（ｕ’，ｖ’）の座標点ＯＲ－Ｙ＿３（０．２７９、０．５３０）、ＯＲ＿３（０．３５１、０．５２１）、Ｒ－ＯＲ＿３（０．３６７、０．５０９）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）、ＯＲ＿１（０．２５７、０．４８９）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The low-saturation orange region includes coordinate points OR-Y_3 (0.279, 0.530), OR_3 (0.351, 0.521), R-OR_3 (0.367, 0) of (u ′, v ′). .509), R-OR_1 (0.262, 0.485), OR_1 (0.257, 0.489), and OR-Y_1 (0.233, 0.492) are surrounded by a closed loop line. The inner area.
　低彩度黄領域は、（ｕ’，ｖ’）の座標点Ｙ－Ｇ＿３（０．２０６、０．５３８）、Ｙ＿３（０．２３１、０．５３６）、ＯＲ－Ｙ＿３（０．２７９、０．５３０）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）、Ｙ＿１（０．２１７、０．４９４）、Ｙ－Ｇ＿１（０．２０９、０．４９５）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The low saturation yellow area is represented by the coordinate points YG_3 (0.206, 0.538), Y_3 (0.231, 0.536), OR-Y_3 (0.279, 0) of (u ′, v ′). .530), OR-Y_1 (0.233, 0.492), Y_1 (0.217, 0.494), and YG_1 (0.209, 0.495) are surrounded by a closed loop line. The inner area.
　低彩度緑領域は、（ｕ’，ｖ’）の座標点Ｇ－ＢＧ＿３（０．１２６、０．４８１）、Ｇ＿３（０．１１６、０．５４４）、Ｙ－Ｇ＿３（０．２０６、０．５３８）、Ｙ－Ｇ＿１（０．２０９、０．４９５）、Ｇ＿１（０．１７９、０．４９７）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The low-saturation green areas are coordinate points G-BG_3 (0.126, 0.481), G_3 (0.116, 0.544), Y-G_3 (0.206, 0) of (u ′, v ′). .538), YG_1 (0.209, 0.495), G_1 (0.179, 0.497), and G-BG_1 (0.182, 0.476) are surrounded by a closed loop line. The inner area.
　低彩度青緑領域は、（ｕ’，ｖ’）の座標点ＢＧ－Ｂ＿３（０．１４４、０．３８９）、ＢＧ＿３（０．１３６、０．４１７）、Ｇ－ＢＧ＿３（０．１２６、０．４８１）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）、ＢＧ＿１（０．１８６、０．４５５）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The low-saturation blue-green regions are coordinate points BG-B_3 (0.144, 0.389), BG_3 (0.136, 0.417), G-BG_3 (0.126, 0.481), G-BG_1 (0.182, 0.476), BG_1 (0.186, 0.455), and BG-B_1 (0.188, 0.445). This is the inner area.
　低彩度青領域は、（ｕ’，ｖ’）の座標点Ｂ－Ｐ＿３（０．２３６、０．２９１）、Ｂ＿３（０．１８２、０．２４５）、ＢＧ－Ｂ＿３（０．１４４、０．３８９）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）、Ｂ＿１（０．２０１、０．３９７）、Ｂ－Ｐ＿１（０．２１９、０．４１３）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The low-saturation blue region is represented by coordinate points BP_3 (0.236, 0.291), B_3 (0.182, 0.245), BG-B_3 (0.144, 0) of (u ′, v ′). 389), BG-B_1 (0.188, 0.445), B_1 (0.201, 0.397), and BP_1 (0.219, 0.413) are surrounded by a closed loop line. The inner area.
　低彩度紫領域は、（ｕ’，ｖ’）の座標点Ｐ－Ｒ＿３（０．３３６、０．４１７）、Ｐ＿３（０．２９１、０．３３６）、Ｂ－Ｐ＿３（０．２３６、０．２９１）、Ｂ－Ｐ＿１（０．２１９、０．４１３）、Ｐ＿１（０．２３７、０．４２８）、Ｐ－Ｒ＿１（０．２５２、０．４５５）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The low-saturation purple areas are coordinate points PR_3 (0.336, 0.417), P_3 (0.291, 0.336), BP_3 (0.236, 0) of (u ′, v ′). .291), BP_1 (0.219, 0.413), P_1 (0.237, 0.428), and PR_1 (0.252, 0.455) are surrounded by a closed loop line. The inner area.
　高彩度赤領域は、（ｕ’，ｖ’）の座標点Ｒ－ＯＲ＿４（０．４１９、０．５２１）、Ｒ＿４（０．４４０、０．５０６）、Ｐ－Ｒ＿４（０．３７９、０．３９８）、Ｐ－Ｒ＿３（０．３３６、０．４１７）、Ｒ＿３（０．３８２、０．４９８）、Ｒ－ＯＲ＿３（０．３６７、０．５０９）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The high-saturation red region includes coordinate points R-OR_4 (0.419, 0.521), R_4 (0.440, 0.506), and PR-4 (0.379, 0.398) of (u ′, v ′). ), P—R — 3 (0.336, 0.417), R — 3 (0.382, 0.498), R—OR — 3 (0.367, 0.509) It is.
　高彩度橙領域は、（ｕ’，ｖ’）の座標点ＯＲ－Ｙ＿４（０．３０２、０．５４９）、ＯＲ＿４（０．３９８、０．５３７）、Ｒ－ＯＲ＿４（０．４１９、０．５２１）、Ｒ－ＯＲ＿３（０．３６７、０．５０９）、ＯＲ＿３（０．３５１、０．５２１）、ＯＲ－Ｙ＿３（０．２７９、０．５３０）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The high-saturation orange areas are represented by coordinate points OR-Y_4 (0.302, 0.549), OR_4 (0.398, 0.537), R-OR_4 (0.419, 0.521) of (u ′, v ′). ), R-OR — 3 (0.367, 0.509), OR — 3 (0.351, 0.521), OR-Y — 3 (0.279, 0.530) It is.
　高彩度黄領域は、（ｕ’，ｖ’）の座標点Ｙ－Ｇ＿４（０．２０４、０．５５９）、Ｙ＿４（０．２３７、０．５５７）、ＯＲ－Ｙ＿４（０．３０２、０．５４９）、ＯＲ－Ｙ＿３（０．２７９、０．５３０）、Ｙ＿３（０．２３１、０．５３６）、Ｙ－Ｇ＿３（０．２０６、０．５３８）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The high saturation yellow area is represented by the coordinate points YG_4 (0.204, 0.559), Y_4 (0.237, 0.557), OR-Y_4 (0.302, 0.549) of (u ′, v ′). ), OR-Y — 3 (0.279, 0.530), Y — 3 (0.231, 0.536), YG — 3 (0.206, 0.538) It is.
　高彩度緑領域は、（ｕ’，ｖ’）の座標点Ｇ－ＢＧ＿４（０．０９８、０．４８３）、Ｇ＿４（０．０８５、０．５６８）、Ｙ－Ｇ＿４（０．２０４、０．５５９）、Ｙ－Ｇ＿３（０．２０６、０．５３８）、Ｇ＿３（０．１１６、０．５４４）、Ｇ－ＢＧ＿３（０．１２６、０．４８１）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The high-saturation green region includes coordinate points G-BG_4 (0.098, 0.483), G_4 (0.085, 0.568), Y-G_4 (0.204, 0.559) of (u ′, v ′). ), YG_3 (0.206, 0.538), G_3 (0.116, 0.544), G-BG_3 (0.126, 0.481) and the inner region surrounded by the closed loop line connecting the points It is.
　高彩度青緑領域は、（ｕ’，ｖ’）の座標点ＢＧ－Ｂ＿４（０．１２２、０．３６１）、ＢＧ＿４（０．１１２、０．３９８）、Ｇ－ＢＧ＿４（０．０９８、０．４８３）、Ｇ－ＢＧ＿３（０．１２６、０．４８１）、ＢＧ＿３（０．１３６、０．４１７）、ＢＧ－Ｂ＿３（０．１４４、０．３８９）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The high-saturation blue-green region includes coordinate points BG-B_4 (0.122, 0.361), BG_4 (0.112, 0.398), G-BG_4 (0.098, 0. 483), G-BG_3 (0.126, 0.481), BG_3 (0.136, 0.417), and BG-B_3 (0.144, 0.389). It is an area.
　高彩度青領域は、（ｕ’，ｖ’）の座標点Ｂ－Ｐ＿４（０．２４５、０．２３０）、Ｂ＿４（０．１７３、０．１６９）、ＢＧ－Ｂ＿４（０．１２２、０．３６１）、ＢＧ－Ｂ＿３（０．１４４、０．３８９）、Ｂ＿３（０．１８２、０．２４５）、Ｂ－Ｐ＿３（０．２３６、０．２９１）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The high-saturation blue areas are coordinate points BP_4 (0.245, 0.230), B_4 (0.173, 0.169), BG-B_4 (0.122, 0.361) of (u ′, v ′). ), BG-B_3 (0.144, 0.389), B_3 (0.182, 0.245), BP_3 (0.236, 0.291), the inner region surrounded by the closed loop line connecting the points It is.
　高彩度紫領域は、（ｕ’，ｖ’）の座標点Ｐ－Ｒ＿４（０．３７９、０．３９８）、Ｐ＿４（０．３１７、０．２９１）、Ｂ－Ｐ＿４（０．２４５、０．２３０）、Ｂ－Ｐ＿３（０．２３６、０．２９１）、Ｐ＿３（０．２９１、０．３３６）、Ｐ－Ｒ＿３（０．３３６、０．４１７）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The high-saturation purple region is represented by coordinate points PR_4 (0.379, 0.398), P_4 (0.317, 0.291), and BP_4 (0.245, 0.230) of (u ′, v ′). ), BP_3 (0.236, 0.291), P_3 (0.291, 0.336), PR_3 (0.336, 0.417), and the inner region surrounded by the closed loop line connecting the points It is.
　（第２および第３態様の照明装置）
　上述の実施形態では、所定の心理効果を与えるグラデーション照明を実現する照明装置ＬＤとして、図１ないし図８に示す第１態様の照明装置ＬＤａが用いられたが、次の第２および第３態様の照明装置ＬＤｂ、ＬＤｃが用いられてもよい。 (Lighting device of second and third aspects)
In the above-described embodiment, the lighting device LDa of the first mode shown in FIGS. 1 to 8 is used as the lighting device LD that realizes gradation lighting that gives a predetermined psychological effect, but the following second and third modes are used. The illumination devices LDb and LDc may be used.
　まず、第２態様の照明装置ＬＤｂについて説明する。図１９は、実施形態における第２態様の照明装置の外観を示す斜視図である。図２０は、図１９に示す切断線ＣＰにおける、前記第２態様の照明装置の構成を示す断面斜視図である。図２１は、前記第２態様の照明装置の構成を示す一部断面図である。図２２は、前記第２態様の照明装置を居室に適用した場合の一例を説明するための図である。 First, the illumination device LDb of the second aspect will be described. FIG. 19 is a perspective view showing an appearance of the illumination device of the second aspect in the embodiment. 20 is a cross-sectional perspective view showing the configuration of the illumination device of the second aspect taken along the cutting line CP shown in FIG. FIG. 21 is a partial cross-sectional view showing the configuration of the illumination device of the second aspect. FIG. 22 is a diagram for explaining an example when the lighting device of the second aspect is applied to a living room.
　この第２態様の照明装置ＬＤｂは、卓上設置型の照明装置ＬＤである。図１９ないし図２１において、この第２態様の照明装置ＬＤｂは、卓上を照明するための第１照明部ＬＰ１と、所定の心理効果を与えるグラデーション照明を行うための第２照明部ＬＰ２との２個の照明部を有している。照明装置ＬＤｂは、上壁部１００ａと下壁部１００ｂとこれら上壁部１００ａおよび下壁部１００ｂとを連結する左右一対の側壁部１００ｃ、１００ｄを持つ断面矩形形状の筒状体から成るフレーム１００を備える。 The lighting device LDb of the second aspect is a table-top lighting device LD. 19 to 21, the illumination device LDb according to the second aspect includes a first illumination unit LP1 for illuminating a table and a second illumination unit LP2 for performing gradation illumination that gives a predetermined psychological effect. It has the lighting part. The illuminating device LDb includes a frame 100 formed of a cylindrical body having a rectangular cross section having an upper wall portion 100a, a lower wall portion 100b, and a pair of left and right side wall portions 100c and 100d connecting the upper wall portion 100a and the lower wall portion 100b. Is provided.
　下壁部１００ｂにおけるフレーム１００の内側を臨む内側面上には、中空の略三角柱形状の台座部１３０を備える。台座部１３０の内部には、第１および第２照明部ＬＰ１、ＬＰを制御する図略の制御部が配置され、その主表面板１３１には、入力部として３個のスイッチ素子ＳＷ１～ＳＷ３が配設されている。スイッチ素子ＳＷ１は、第１照明部ＬＰ１の点消灯を行うものであり、スイッチ素子ＳＷ２は、第２照明部ＬＰ２の点消灯を行うものであり、スイッチ素子ＳＷ３は、照明装置ＬＤｂの電源スイッチである。前記図略の制御部は、予め設定された所定の心理効果を与えるように、第２照明部ＬＰ２のグラデーション照明を制御する。 On the inner surface of the lower wall portion 100b facing the inside of the frame 100, a hollow substantially triangular prism-shaped pedestal portion 130 is provided. A control unit (not shown) for controlling the first and second illumination units LP1 and LP is arranged inside the pedestal unit 130. The main surface plate 131 has three switch elements SW1 to SW3 as input units. It is arranged. The switch element SW1 is for turning on / off the first illumination unit LP1, the switch element SW2 is for turning on / off the second illumination unit LP2, and the switch element SW3 is a power switch of the illumination device LDb. is there. The unillustrated control unit controls gradation illumination of the second illumination unit LP2 so as to give a predetermined psychological effect set in advance.
　そして、上壁部１００ａにおけるフレーム１００の内側を臨む内側面上には、前方側に第１照明部ＬＰ１が配置され、後方側に第２照明部ＬＰ２が配置されている。第１照明部ＬＰ１は、前記前方側から前記後方側に延び、前記前方側で上壁部１００ａに近接し後方側に行くに従って上壁部１００ａから徐々に離れるように傾斜配置された反射板１０４を備える。反射板１０４上には、導光板１０３が配置され、導光板１０３における後方側の一方端には、導光板１０３の側面から白色光を入射させるように、ＬＥＤ基板１０２に配設された白色ＬＥＤ１０１が配置されている。そして、導光板１０３の全面には、所定の空間を空けてカバー部材１０５が配設されている。このような第１照明部ＬＰ１では、白色ＬＥＤ１０１から放射された白色光は、導光板１０３を導光しつつ反射板１０４によって反射され、この反射光は、カバー部材１０５を介して外部に放射され、図２２に示すように、卓上を照明する。第２照明部ＬＰ２は、第１態様の照明装置ＬＤａにおける光源部１と同様に構成されている。 Then, on the inner surface of the upper wall portion 100a facing the inside of the frame 100, the first illumination portion LP1 is disposed on the front side, and the second illumination portion LP2 is disposed on the rear side. The first illuminating unit LP1 extends from the front side to the rear side, and is inclined so as to gradually move away from the upper wall part 100a as it approaches the upper wall part 100a on the front side and goes to the rear side. Is provided. A light guide plate 103 is disposed on the reflection plate 104, and a white LED 101 disposed on the LED substrate 102 is incident on one end on the rear side of the light guide plate 103 from the side surface of the light guide plate 103. Is arranged. A cover member 105 is disposed on the entire surface of the light guide plate 103 with a predetermined space therebetween. In such a first illumination unit LP1, the white light emitted from the white LED 101 is reflected by the reflection plate 104 while being guided through the light guide plate 103, and the reflected light is radiated to the outside through the cover member 105. As shown in FIG. 22, the tabletop is illuminated. The 2nd illumination part LP2 is comprised similarly to the light source part 1 in the illuminating device LDa of a 1st aspect.
　すなわち、第２照明部ＬＰ２は、一方向に長尺な略角柱形状の第２照明部本体１７ｂを備える。第２照明部本体１７ｂには、一側面から内部に向けて形成された、前記一方向に沿って長尺な第１凹所１７１ｂ－１が形成され、前記一側面に隣接する他側面から内部に向けて形成された、前記一方向に沿って長尺な第２凹所１７１ｂ－２が形成されている。第１凹所１７１ｂ－１の両側面は、それぞれ、第１凹所１７１ｂ－１の中央から外側に向けて膨らむ曲面形状であり、その第１底面には、例えばアルミニウム製の放熱板１５－１を介して第１ＬＥＤ基板１４－１が配設されている。第１ＬＥＤ基板１４－１上には、上述した複数の昼白色ＬＥＤ１１－１、複数の電球色ＬＥＤ１２－１および複数のＲＧＢＬＥＤ１３－１が前記一方向に沿って並設されている。すなわち、第１凹所１７１ｂ－１の第１底面には、第１ＬＥＤ光源１０－１が配設されている。同様に、第２凹所１７１ｂ－２の両側面は、それぞれ、第２凹所１７１ｂ－２の中央から外側に向けて膨らむ曲面形状であり、その第２底面には、例えばアルミニウム製の放熱板１５－２を介して第２ＬＥＤ基板１４－２が配設されている。第２ＬＥＤ基板１４－２上には、上述した複数の昼白色ＬＥＤ１１－２、複数の電球色ＬＥＤ１２－２および複数のＲＧＢＬＥＤ１３－２が前記一方向に沿って並設されている。すなわち、第２凹所１７１ｂ－２の第２底面には、第２ＬＥＤ光源１０－２が配設されている。これら第１ＬＥＤ光源１０－１と第２ＬＥＤ光源１０－２とは、第１ＬＥＤ光源１０－１の第１光軸ＡＸ１と第２ＬＥＤ光源１０－２の第２光軸ＡＸ２とが互いに交差するように、第１および第２凹所１７１ｂ－１、１７１ｂ－２それぞれに配置されている。例えば、第１凹所１７１ｂ－１の第１底面と第２凹所１７１ｂ－２の第２底面とは、それらの各延長面で互いに交差するように、形成されている。このように第１光軸ＡＸ１と第２光軸ＡＸ２とを互いに交差させることで、光源部１から所定の距離だけ離れた放射角度領域では、第１光の一部と第２光の一部とが互いに重なり、被照射面でグラデーション照明が実現される。そして、第２照明部本体１７ｂにおける第１および第２凹所１７１ｂ－１、１７１ｂ－２の各開口近傍を閉塞するように、前記一方向に長尺に延び断面Ｌ字形状の板状のカバー部材１６ｂが配設されている。カバー部材１６ｂは、第１ＬＥＤ光源１０－１から放射される第１光および第２ＬＥＤ光源１０－２から放射される第２光に対し、透光性を有する材料で形成されている。このような第２照明部ＬＰ２では、第１および第２ＬＥＤ光源１０－１、１０－２から放射された第１および第２光は、図２２に示すように、それら各一部が放射角度領域の壁面で互いに重なるように放射されるので、第１光による色相Ａの領域から、色相Ａと色相Ｂとの中間色の中間領域を経て、第２光による色相Ｂの領域に至るグラデーション照明で壁を照明できる。 That is, the second illumination unit LP2 includes a second illumination unit body 17b having a substantially prismatic shape that is long in one direction. The second illumination unit main body 17b is formed with a first recess 171b-1 that is formed from one side surface toward the inside and that is long along the one direction, and from the other side surface adjacent to the one side surface to the inside. A long second recess 171b-2 is formed along the one direction. Both side surfaces of the first recess 171b-1 each have a curved shape that swells outward from the center of the first recess 171b-1, and the heat sink 15-1 made of, for example, aluminum is formed on the first bottom surface thereof. The first LED substrate 14-1 is disposed through the. On the first LED substrate 14-1, the plurality of daylight white LEDs 11-1, the plurality of light bulb color LEDs 12-1, and the plurality of RGB LEDs 13-1 are arranged in parallel along the one direction. That is, the first LED light source 10-1 is disposed on the first bottom surface of the first recess 171b-1. Similarly, both side surfaces of the second recess 171b-2 each have a curved shape that swells outward from the center of the second recess 171b-2, and the second bottom surface has, for example, an aluminum heat sink. A second LED substrate 14-2 is disposed via 15-2. On the second LED board 14-2, the plurality of daylight white LEDs 11-2, the plurality of light bulb color LEDs 12-2, and the plurality of RGB LEDs 13-2 are arranged in parallel along the one direction. That is, the second LED light source 10-2 is disposed on the second bottom surface of the second recess 171b-2. The first LED light source 10-1 and the second LED light source 10-2 are arranged so that the first optical axis AX1 of the first LED light source 10-1 and the second optical axis AX2 of the second LED light source 10-2 intersect each other. The first and second recesses 171b-1 and 171b-2 are respectively disposed. For example, the first bottom surface of the first recess 171b-1 and the second bottom surface of the second recess 171b-2 are formed so as to intersect each other at their extended surfaces. In this way, by causing the first optical axis AX1 and the second optical axis AX2 to cross each other, in a radiation angle region that is a predetermined distance away from the light source unit 1, a part of the first light and a part of the second light. Overlap each other, and gradation illumination is realized on the irradiated surface. Then, a plate-like cover having an L-shaped cross section extending in the one direction so as to close the vicinity of each opening of the first and second recesses 171b-1 and 171b-2 in the second illumination section main body 17b. A member 16b is provided. The cover member 16b is formed of a material having translucency with respect to the first light emitted from the first LED light source 10-1 and the second light emitted from the second LED light source 10-2. In the second illuminator LP2, the first and second lights emitted from the first and second LED light sources 10-1 and 10-2 are partially emitted in the radiation angle region as shown in FIG. Are emitted so as to overlap each other on the wall surface of the light source, so that the gradation illumination extends from the region of the hue A due to the first light to the region of the hue B due to the second light through the intermediate region between the hue A and the hue B Can illuminate.
　次に、第３態様の照明装置ＬＤｃについて説明する。図２３は、実施形態における第３態様の照明装置の外観を示す斜視図である。図２４は、前記第３態様の照明装置の構成を示す側面図である。図２４Ａは、全体側面図であり、図２４Ｂは、一部側面図である。 Next, the illumination device LDc according to the third aspect will be described. FIG. 23 is a perspective view illustrating an appearance of the illumination device of the third aspect in the embodiment. FIG. 24 is a side view showing the configuration of the illumination device of the third aspect. FIG. 24A is an overall side view, and FIG. 24B is a partial side view.
　この第３態様の照明装置ＬＤｃは、天井設置型（放射投影型）の照明装置ＬＤである。図２３および図２４において、この第３態様の照明装置ＬＤｃは、室内を照明するための第１照明部ＬＰ３と、所定の心理効果を与えるグラデーション照明を行うための第２照明部ＬＰ４との２個の照明部を有している。照明装置ＬＤｃは、互いに径の異なる短高の第１および第２筒状部２０１ｂ、２０１ｄと、第１筒状部２０１ｂの一方開口を閉塞する円板状の天板部２０１ａと、第１筒状部２０１ｂの他方開口の周縁部と第２筒状部２０１ｄの一方開口の周縁部とを連結する円環板状の連結部２０１ｃと、第２筒状部２０１ｄの他方開口の周縁部から径方向外側に所定長延びるフランジ部２０１ｅとを持つフレーム２０１を備える。天板部２０１ａには、その略中央位置にいわゆる引っ掛けシーリングプラグ部２０２が配設されている。天板部２０１ａの内側面上および連結部２０１ｄの内側面上には、第１照明部ＬＰ３としての複数の白色ＬＥＤが周方向に沿って並設されている。フランジ部２０１ｅには、第２筒状部２０１ｄの他方開口を閉塞するようにカバー部材２０３が設けられている。天板部２０１ａの内側面上には、予め設定された所定の心理効果を与えるように、第２照明部ＬＰ４のグラデーション照明を制御する図略の制御部が配設されている。 The illumination device LDc according to the third aspect is a ceiling installation type (radiation projection type) illumination device LD. 23 and 24, the illumination device LDc according to the third aspect includes a first illumination unit LP3 for illuminating a room and a second illumination unit LP4 for performing gradation illumination that gives a predetermined psychological effect. It has the lighting part. The illumination device LDc includes short and high first and second cylindrical portions 201b and 201d having different diameters, a disk-shaped top plate portion 201a that closes one opening of the first cylindrical portion 201b, and a first cylinder. From the peripheral edge of the other opening of the second cylindrical part 201d, the annular plate-like connecting part 201c that connects the peripheral part of the other opening of the cylindrical part 201b and the peripheral part of the one opening of the second cylindrical part 201d. A frame 201 having a flange portion 201e extending a predetermined length outward in the direction is provided. A so-called hook sealing plug 202 is disposed on the top plate 201a at a substantially central position. A plurality of white LEDs as the first illumination unit LP3 are arranged in parallel along the circumferential direction on the inner side surface of the top plate portion 201a and the inner side surface of the connecting portion 201d. The flange part 201e is provided with a cover member 203 so as to close the other opening of the second cylindrical part 201d. On the inner surface of the top plate portion 201a, a control unit (not shown) that controls gradation illumination of the second illumination unit LP4 is provided so as to give a predetermined psychological effect set in advance.
　そして、連結部２０１ｃと第２筒状部２０１ｄの一方開口部の周縁部との連結部分外面は、傾斜面となっている。この傾斜面には、任意の色を発光可能な複数のＲＧＢＬＥＤが第２照明部ＰＬ４の第１ＬＥＤ光源１８Ｐとして周方向に沿って配設されている。第２筒状部２０１ｄの外周側面には、任意の色を発光可能な複数のＲＧＢＬＥＤが第２照明部ＰＬ４の第２ＬＥＤ光源１８Ｂとして周方向に沿って配設されている。このような第２照明部ＬＰ４では、第１および第２ＬＥＤ光源１８Ｐ、１８Ｂから放射された第１および第２光は、照明装置ＬＤｃの中央位置から所定の距離だけ離れた天井面では、図２４に示すように、それら各一部が重なり、第１光による色相Ａの領域から、色相Ａと色相Ｂとの中間色の中間領域を経て、第２光による色相Ｂの領域に至るグラデーション照明で天井を照明できる。 And the connection part outer surface of the connection part 201c and the peripheral part of the one opening part of the 2nd cylindrical part 201d is an inclined surface. On the inclined surface, a plurality of RGB LEDs capable of emitting an arbitrary color are arranged along the circumferential direction as the first LED light source 18P of the second illumination unit PL4. A plurality of RGB LEDs capable of emitting an arbitrary color are disposed along the circumferential direction as the second LED light source 18B of the second illumination unit PL4 on the outer peripheral side surface of the second cylindrical portion 201d. In such a second illumination unit LP4, the first and second light emitted from the first and second LED light sources 18P and 18B are on the ceiling surface separated by a predetermined distance from the center position of the illumination device LDc, as shown in FIG. As shown in the figure, each of them overlaps, and the ceiling is lit with gradation illumination from the area of hue A by the first light to the area of hue B by the second light through the intermediate area of the intermediate colors of hue A and hue B. Can illuminate.
　本明細書は、上記のように様々な態様の技術を開示しているが、そのうち主な技術を以下に纏める。 This specification discloses various modes of technology as described above, and the main technologies are summarized below.
　一態様にかかる照明装置は、複数の色の光を放射可能な第１および第２ＬＥＤ光源を有し、前記第１ＬＥＤ光源から放射される第１光の一部と前記第２ＬＥＤ光源から放射される第２光の一部とが放射角度領域で互いに重なるように前記第１および第２光を放射する光源部と、互いに異なる色で前記第１および第２光を放射するように前記第１および第２ＬＥＤ光源を制御する制御部とを備える。そして、前記制御部は、前記放射角度領域に照射された第１および第２光の最大彩度の光の色度域が、ＣＩＥ１９７６ｕ’ｖ’色度図において、（ｕ’，ｖ’）の座標点Ｒ＿４（０．４４０、０．５０６）、Ｒ－ＯＲ＿４（０．４１９、０．５２１）、ＯＲ＿４（０．３９８、０．５３７）、ＯＲ－Ｙ＿４（０．３０２、０．５４９）、Ｙ＿４（０．２３７，０．５５７）、Ｙ－Ｇ＿４（０．２０４、０．５５９）、Ｇ＿４（０．０８５、０．５６８）、Ｇ－ＢＧ＿４（０．０９８、０．４８３）、ＢＧ＿４（０．１１２、０．３９８）、ＢＧ－Ｂ＿４（０．１２２、０．３６１）、Ｂ＿４（０．１７３、０．１６９）、Ｂ－Ｐ＿４（０．２４５、０．２３０）、Ｐ＿４（０．３１７、０．２９１）、Ｐ－Ｒ＿４（０．３７９、０．３９８）の各点を結ぶことによって得られる上限境界閉ループ線と、（ｕ’，ｖ’）の座標点Ｒ＿１（０．２６８、０．４８２）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）、ＯＲ＿１（０．２５７、０．４８９）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）、Ｙ＿１（０．２１７、０．４９４）、Ｙ－Ｇ＿１（０．２０９、０．４９５）、Ｇ＿１（０．１７９、０．４９７）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）、ＢＧ＿１（０．１８６、０．４５５）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）、Ｂ＿１（０．２０１、０．３９７）、Ｂ－Ｐ＿１（０．２１９、０．４１３）、Ｐ＿１（０．２３７、０．４２８）、Ｐ－Ｒ＿１（０．２５２、０．４５５）の各点を結ぶことによって得られる下限境界閉ループ線との間の第１色度領域に含まれるように、前記第１および第２ＬＥＤ光源を制御する。 An illumination device according to an aspect includes first and second LED light sources capable of emitting a plurality of colors of light, and a part of the first light emitted from the first LED light source and the second LED light source. A light source unit that emits the first and second lights so that a part of the second light overlaps with each other in a radiation angle region, and the first and second lights that emit the first and second lights in different colors. A control unit that controls the second LED light source. Then, the control unit has a chromaticity range of the maximum saturation light of the first and second lights irradiated on the radiation angle region, in the CIE 1976 u′v ′ chromaticity diagram, (u ′, v ′). Coordinate points R_4 (0.440, 0.506), R-OR_4 (0.419, 0.521), OR_4 (0.398, 0.537), OR-Y_4 (0.302, 0.549), Y_4 (0.237, 0.557), Y-G_4 (0.204, 0.559), G_4 (0.085, 0.568), G-BG_4 (0.098, 0.483), BG_4 ( 0.112, 0.398), BG-B_4 (0.122, 0.361), B_4 (0.173, 0.169), BP_4 (0.245, 0.230), P_4 (0. 317, 0.291), PR_4 (0.379, 0.398) An upper limit boundary closed loop line obtained by connecting the points, and coordinate points R_1 (0.268, 0.482), R-OR_1 (0.262, 0.485), OR_1 (u) of (u ′, v ′) 0.257, 0.489), OR-Y_1 (0.233, 0.492), Y_1 (0.217, 0.494), Y-G_1 (0.209, 0.495), G_1 (0. 179, 0.497), G-BG_1 (0.182, 0.476), BG_1 (0.186, 0.455), BG-B_1 (0.188, 0.445), B_1 (0.201, 0.397), BP_1 (0.219, 0.413), P_1 (0.237, 0.428), and PR_1 (0.252, 0.455). Included in the first chromaticity region between the lower boundary closed loop line So that the, for controlling the first and second 2LED light source.
　このような照明装置では、互いに異なる色で第１および第２ＬＥＤ光源から放射された第１および第２光は、それら各一部が放射角度領域で互いに重なるように放射されるので、上記照明装置は、前記放射角度領域をグラデーション照明できる。上記照明装置は、前記放射角度領域に照射された第１および第２光が上記第１色度領域に含まれるので、人に受け入れられる光で前記放射角度領域をグラデーション照明できる。したがって、上記照明装置は、照明光の環境下に居る人に、任意に所望の色相組合せを選択した場合も、心理的に受け入れられる好適な照明を提供できる。 In such an illuminating device, the first and second lights emitted from the first and second LED light sources in different colors are emitted so that each part thereof overlaps each other in the radiation angle region. Can gradationally illuminate the radiation angle region. In the illumination device, since the first and second lights irradiated on the radiation angle region are included in the first chromaticity region, the radiation angle region can be gradationally illuminated with light received by a person. Therefore, the illuminating device can provide suitable illumination that is psychologically acceptable to a person who is in an environment of illumination light even when a desired hue combination is arbitrarily selected.
　他の一態様では、上述の照明装置において、前記制御部は、前記放射角度領域の一部の第１領域に照射される第１光、および、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射される第２光が、ＣＩＥ１９７６ｕ’ｖ’色度図において、前記第１色度領域に含まれる下記（２Ａ）ないし（２Ｍ）のいずれかの条件を満たすように、前記第１および第２ＬＥＤ光源を制御する。 In another aspect, in the above-described lighting device, the control unit includes a first light that is applied to a first region that is a part of the radiation angle region, and one of the radiation angle regions that is different from the first region. In the CIE 1976 u′v ′ chromaticity diagram, the second light emitted to the second region of the part satisfies the following conditions (2A) to (2M) included in the first chromaticity region: Control the first and second LED light sources.
　条件（２Ａ）は、前記第１領域に照射される第１光が下記によって定義される白色領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｂ）は、前記第１領域に照射される第１光が下記によって定義される低彩度青領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｃ）は、前記第１領域に照射される第１光が下記によって定義される低彩度青緑領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｄ）は、前記第１領域に照射される第１光が下記によって定義される低彩度緑領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｅ）は、前記第１領域に照射される第１光が下記によって定義される低彩度黄領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｆ）は、前記第１領域に照射される第１光が下記によって定義される低彩度橙領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｇ）は、前記第１領域に照射される第１光が下記によって定義される低彩度赤領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｈ）は、前記第１領域に照射される第１光が下記によって定義される低彩度紫領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｉ）は、前記第１領域に照射される第１光が下記によって定義される高彩度青領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｊ）は、前記第１領域に照射される第１光が下記によって定義される高彩度青緑領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｋ）は、前記第１領域に照射される第１光が下記によって定義される高彩度緑領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｌ）は、前記第１領域に照射される第１光が下記によって定義される高彩度黄領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（２Ｍ）は、前記第１領域に照射される第１光が下記によって定義される高彩度橙領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。 The condition (2A) is that the first light irradiated to the first region is included in a white region defined by the following, and the second light irradiated to the second region is defined by the following low color Low blue area, Low chroma blue area, Low chroma green area, Low chroma yellow area, Low chroma orange area, Low chroma red area, Low chroma purple area, High chroma blue area, High chroma blue area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. Condition (2B) is that the first light irradiated to the first region is included in the low saturation blue region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue-green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. Condition (2C) is that the first light irradiated to the first region is included in a low-saturation blue-green region defined by the following, and the second light irradiated to the second region is defined by the following White area, low saturation blue area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. The condition (2D) is that the first light irradiated to the first region is included in the low-saturation green region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. Condition (2E) is that the first light irradiated to the first region is included in the low saturation yellow region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue-green area, low saturation green area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. Condition (2F) is that the first light irradiated to the first region is included in the low-saturation orange region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. Condition (2G) is that the first light irradiated to the first region is included in the low saturation red region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. Condition (2H) is that the first light irradiated to the first region is included in the low-saturation purple region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, high saturation blue area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. Condition (2I) is that the first light irradiated to the first region is included in a high saturation blue region defined by the following, and the second light irradiated to the second region is defined by the following white Area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue green area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. Condition (2J) is that the first light irradiated on the first region is included in a high-saturation blue-green region defined by the following, and the second light irradiated on the second region is defined by the following: White area, Low chroma blue area, Low chroma blue area, Low chroma green area, Low chroma yellow area, Low chroma orange area, Low chroma red area, Low chroma purple area, High chroma blue area, It is included in any one of the high saturation green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. Condition (2K) is that the first light irradiated to the first region is included in a high-saturation green region defined by the following, and the second light irradiated to the second region is defined by the following white Area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation It is included in each of the blue-green region, the high saturation yellow region, the high saturation orange region, the high saturation red region, and the high saturation purple region. Condition (2L) is that the first light irradiated to the first region is included in a high saturation yellow region defined by the following, and the second light irradiated to the second region is defined by the following white Area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation It is included in each of the blue-green region, high-saturation green region, high-saturation orange region, high-saturation red region, and high-saturation purple region. Condition (2M) is that the first light irradiated to the first region is included in a high-saturation orange region defined by the following, and the second light irradiated to the second region is defined by the following white Area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation It is included in each of the blue-green region, the high-saturation green region, the high-saturation yellow region, the high-saturation red region, and the high-saturation purple region.
　このような照明装置は、前記第１および第２光が上記（２Ａ）ないし（２Ｍ）のいずれかの条件を満たすので、人に快適感を与える光で前記放射角度領域をグラデーション照明でき、人が長時間過ごす場合でも快適な照明環境を提供できる。したがって、上記照明装置は、照明光の環境下に居る人に、快適感という心理効果を好適に与えることができる。 In such an illuminating device, the first and second lights satisfy any one of the above conditions (2A) to (2M), so that the radiation angle region can be gradationally illuminated with light that gives comfort to the person, A comfortable lighting environment can be provided even if a person spends a long time. Therefore, the illuminating device can suitably give a psychological effect of comfort to a person who is in an environment of illumination light.
　他の一態様では、上述の照明装置において、前記制御部は、前記放射角度領域の一部の第１領域に照射される第１光、および、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射される第２光が、ＣＩＥ１９７６ｕ’ｖ’色度図において、前記第１色度領域に含まれる下記（３Ａ）ないし（３Ｍ）のいずれかの条件を満たすように、前記第１および第２ＬＥＤ光源を制御する。 In another aspect, in the above-described lighting device, the control unit includes a first light that is applied to a first region that is a part of the radiation angle region, and one of the radiation angle regions that is different from the first region. In the CIE 1976 u′v ′ chromaticity diagram, the second light applied to the second region of the part satisfies the following conditions (3A) to (3M) included in the first chromaticity region: Control the first and second LED light sources.
　条件（３Ａ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される白色領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域および高彩度黄領域の各領域のいずれかに含まれることである。条件（３Ｂ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青緑領域、低彩度橙領域、低彩度赤領域、高彩度青領域、高彩度緑領域および高彩度黄領域の各領域のいずれかに含まれることである。条件（３Ｃ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域および高彩度橙領域の各領域のいずれかに含まれることである。条件（３Ｄ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、高彩度青領域、高彩度青緑領域および高彩度黄領域の各領域のいずれかに含まれることである。条件（３Ｅ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度橙領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度橙領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（３Ｆ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度橙領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域および高彩度緑領域の各領域のいずれかに含まれることである。条件（３Ｇ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度赤領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度黄領域、低彩度橙領域、高彩度青緑領域、高彩度緑領域および高彩度黄領域の各領域のいずれかに含まれることである。条件（３Ｈ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度紫領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域、低彩度青緑領域、低彩度赤領域および高彩度黄領域の各領域のいずれかに含まれることである。条件（３Ｉ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域および高彩度緑領域の各領域のいずれかに含まれることである。条件（３Ｊ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度緑領域および高彩度黄領域の各領域のいずれかに含まれることである。条件（３Ｋ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域および高彩度青領域の各領域のいずれかに含まれることである。条件（３Ｌ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域、低彩度青緑領域、高彩度青領域および高彩度橙領域の各領域のいずれかに含まれることである。条件（３Ｍ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度橙領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域に含まれることである。 The condition (3A) is that the first light irradiated to a part of the first region of the radiation angle region is included in a white region defined by the following, and is one of the radiation angle regions different from the first region. The second light emitted to the second region of the part is defined by the following: low saturation blue region, low saturation blue-green region, low saturation green region, low saturation red region, low saturation purple region, high saturation It is included in each of the blue region, the high saturation blue-green region, the high saturation green region, and the high saturation yellow region. Condition (3B) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation blue region defined by the following, and the radiation angle different from the first region The second light irradiated to the second region of a part of the region is defined by the following low saturation blue-green region, low saturation orange region, low saturation red region, high saturation blue region, high saturation green region and high saturation yellow It is included in any one of the areas. Condition (3C) is that the first light irradiated to a first region of a part of the radiation angle region is included in a low-saturation blue-green region defined by the following, and is different from the first region. The second light emitted to the second area that is a part of the angle area is defined by the following: white area, low saturation blue area, low saturation green area, low saturation yellow area, low saturation orange area, low It is included in any one of the regions of the saturation red region, the low saturation purple region, the high saturation blue region, the high saturation blue-green region, the high saturation green region, the high saturation yellow region, and the high saturation orange region. Condition (3D) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation green region defined by the following, and the radiation angle is different from the first region The second light emitted to the second region of a part of the region is defined as follows: white region, low saturation blue region, low saturation blue-green region, low saturation yellow region, low saturation orange region, low It is included in any one of the saturation red region, the high saturation blue region, the high saturation blue-green region, and the high saturation yellow region. Condition (3E) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation yellow region defined by the following, and the radiation angle is different from the first region The second light emitted to the second region that is a part of the region is defined as follows: white region, low saturation blue region, low saturation blue-green region, low saturation green region, low saturation orange region, low It is included in any one of the saturation purple region, the high saturation blue region, the high saturation blue-green region, the high saturation green region, the high saturation orange region, and the high saturation purple region. Condition (3F) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation orange region defined by the following, and the radiation angle is different from the first region The second light emitted to the second region that is a part of the region is defined as follows: white region, low saturation blue region, low saturation blue-green region, low saturation red region, low saturation purple region, high saturation It is included in any of the blue region, the high saturation blue-green region, and the high saturation green region. Condition (3G) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation red region defined by the following, and the radiation angle different from the first region The second light emitted to the second region that is part of the region is defined by the following: a white region, a low saturation blue region, a low saturation blue-green region, a low saturation yellow region, a low saturation orange region, and a high saturation It is included in any one of the blue-green region, the high-saturation green region, and the high-saturation yellow region. Condition (3H) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation purple region defined by the following, and the radiation angle is different from the first region The second light emitted to a second region that is a part of the region is one of the low saturation blue region, the low saturation blue-green region, the low saturation red region, and the high saturation yellow region defined by the following: It is included. Condition (3I) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high saturation blue region defined by the following and the radiation angle region is different from the first region. The second light irradiated to some of the second regions is included in any of the white region and the high-saturation green region defined by the following. Condition (3J) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation blue-green region defined by the following, and is different from the first region in the radiation angle region The second light irradiated to a part of the second region is defined as follows: white region, low chroma blue region, low chroma green region, low chroma yellow region, low chroma orange region, low chroma It is included in any of the red region, the low saturation purple region, the high saturation blue region, the high saturation green region, and the high saturation yellow region. The condition (3K) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation green region defined by the following, and the radiation angle region is different from the first region. The second light irradiated to a part of the second region is included in any of the low saturation blue region and the high saturation blue region defined by the following. Condition (3L) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation yellow region defined by the following, and the radiation angle region is different from the first region. The second light emitted to some of the second regions is included in any of the low saturation blue region, the low saturation blue-green region, the high saturation blue region, and the high saturation orange region defined by the following: is there. Condition (3M) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation orange region defined by the following, and the radiation angle region is different from the first region. The second light irradiated to a part of the second region is included in the low saturation blue region defined by the following.
　このような照明装置は、前記第１および第２光が上記（３Ａ）ないし（３Ｍ）のいずれかの条件を満たすので、人にくつろぎ感（リラックス感）を与える光で前記放射角度領域をグラデーション照明でき、人がよりくつろげる照明環境を提供できる。したがって、上記照明装置は、照明光の環境下に居る人に、くつろぎ感という心理効果を好適に与えることができる。 In such an illuminating device, since the first and second lights satisfy any one of the above conditions (3A) to (3M), the radiation angle region is gradated with light that gives a person a feeling of relaxation (relaxation). Lighting can be provided, providing a lighting environment where people can relax. Therefore, the illuminating device can suitably give a psychological effect of a feeling of relaxation to a person who is in an environment of illumination light.
　他の一態様では、上述の照明装置において、前記制御部は、前記放射角度領域の一部の第１領域に照射される第１光、および、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射される第２光が、ＣＩＥ１９７６ｕ’ｖ’色度図において、前記第１色度領域に含まれる下記（４Ａ）ないし（４Ｊ）のいずれかの条件を満たすように、前記第１および第２ＬＥＤ光源を制御する。 In another aspect, in the above-described lighting device, the control unit includes a first light that is applied to a first region that is a part of the radiation angle region, and one of the radiation angle regions that is different from the first region. So that the second light emitted to the second region of the part satisfies the following conditions (4A) to (4J) included in the first chromaticity region in the CIE 1976 u′v ′ chromaticity diagram: Control the first and second LED light sources.
　条件（４Ａ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された白色領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青領域、高彩度青領域、高彩度青緑領域、高彩度緑領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（４Ｂ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青緑領域、高彩度青領域、高彩度青緑領域および高彩度黄領域の各領域のいずれかに含まれることである。条件（４Ｃ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、低彩度緑領域、低彩度黄領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域および高彩度黄領域の各領域のいずれかに含まれることである。条件（４Ｄ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、高彩度青領域、高彩度青緑領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（４Ｅ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度紫領域、高彩度青領域、高彩度青緑領域および高彩度緑領域の各領域のいずれかに含まれることである。条件（４Ｆ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度紫領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青領域、および低彩度青緑領域の各領域のいずれかに含まれることである。条件（４Ｇ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度緑領域および高彩度緑領域の各領域のいずれかに含まれることである。条件（４Ｈ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度緑領域、高彩度橙領域および高彩度赤領域の各領域のいずれかに含まれることである。条件（４Ｉ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青領域、高彩度青領域、高彩度青緑領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（４Ｊ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、高彩度青領域、高彩度青緑領域および高彩度橙領域の各領域のいずれかに含まれることである。 The condition (4A) is that a part of the radiation angle region different from the first region is included in the defined white region where the first light irradiated to a part of the first region of the radiation angle region is included. The second light emitted to the second region is included in any one of the defined low-saturation blue region, high-saturation blue region, high-saturation blue-green region, high-saturation green region, and high-saturation purple region. . Condition (4B) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low saturation blue region, and is different from the first region in the radiation angle region The second light emitted to a part of the second region is included in any of the defined low-saturation blue-green region, high-saturation blue region, high-saturation blue-green region, and high-saturation yellow region. . Condition (4C) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation blue-green region and is different from the first region in the radiation angle The second light emitted to the second region that is a part of the region is defined as the white region, the low saturation blue region, the low saturation green region, the low saturation yellow region, the low saturation purple region, and the high saturation blue region. The high saturation blue-green region, the high saturation green region, and the high saturation yellow region are included in any one of the regions. The condition (4D) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation green region and is different from the first region in the radiation angle region The second light emitted to a part of the second region is included in any of the defined white region, low saturation blue region, high saturation blue region, high saturation blue-green region, and high saturation purple region. It is. The condition (4E) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low saturation yellow region, and the radiation angle region is different from the first region. The second light irradiated to a part of the second region is defined as the low saturation blue region, the low saturation blue-green region, the low saturation green region, the low saturation purple region, the high saturation blue region, and the high saturation blue. It is included in each of the green region and the high saturation green region. Condition (4F) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation purple region, and is different from the first region in the radiation angle region The second light emitted to a part of the second region is included in each of the defined low saturation blue region and low saturation blue-green region. Condition (4G) is that the first light applied to a part of the first region of the radiation angle region is included in the defined high saturation blue region and is different from the first region in the radiation angle region. 2nd light irradiated to the 2nd area | region of a part is contained in either of each area | region of the said low chroma green area | region and the high chroma green area | region defined. Condition (4H) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high-saturation blue-green region, and the radiation angle region is different from the first region. The second light emitted to some of the second areas is the defined white area, low chroma blue area, low chroma blue green area, low chroma green area, low chroma yellow area, and low chroma orange. It is included in any one of the region, the low saturation red region, the low saturation purple region, the high saturation green region, the high saturation orange region, and the high saturation red region. Condition (4I) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high-saturation green region, and one of the radiation angle regions different from the first region. 2nd light irradiated to the 2nd field of a part is contained in each field of each of the above-mentioned low chroma blue field, high chroma blue field, high chroma blue green field, and high chroma purple field. Condition (4J) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high saturation yellow region, and one of the radiation angle regions different from the first region. The second light emitted to the second region of the section is defined as the white region, the low saturation blue region, the low saturation blue-green region, the low saturation green region, the high saturation blue region, the high saturation blue-green region, and the high saturation orange. It is included in any one of the areas.
　このような照明装置は、前記第１および第２光が上記（４Ａ）ないし（４Ｊ）のいずれかの条件を満たすので、人にすっきり感を与える光で前記放射角度領域をグラデーション照明でき、人がよりすっきりした気分でリフレッシュできる照明環境を提供できる。したがって、上記照明装置は、照明光の環境下に居る人に、すっきり感という心理効果を好適に与えることができる。 In such an illuminating device, since the first and second lights satisfy any one of the above conditions (4A) to (4J), the radiation angle area can be gradationally illuminated with light that gives a person a clean feeling, Can provide a refreshing lighting environment with a refreshing feeling. Therefore, the illuminating device can suitably give a psychological effect of a refreshing feeling to a person who is in an environment of illumination light.
　他の一態様では、上述の照明装置において、前記制御部は、前記放射角度領域の一部の第１領域に照射される第１光、および、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射される第２光が、ＣＩＥ１９７６ｕ’ｖ’色度図において、前記第１色度領域に含まれる下記（５Ａ）ないし（５Ｌ）のいずれかの条件を満たすように、前記第１および第２ＬＥＤ光源を制御する。 In another aspect, in the above-described lighting device, the control unit includes a first light that is applied to a first region that is a part of the radiation angle region, and one of the radiation angle regions that is different from the first region. In the CIE 1976 u′v ′ chromaticity diagram, the second light emitted to the second region of the part satisfies the following conditions (5A) to (5L) included in the first chromaticity region: Control the first and second LED light sources.
　条件（５Ａ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された白色領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、高彩度青領域、高彩度青緑領域、高彩度緑領域および高彩度黄領域の各領域のいずれかに含まれることである。条件（５Ｂ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、高彩度青領域、高彩度青緑領域、高彩度緑領域および高彩度黄領域の各領域のいずれかに含まれることである。条件（５Ｃ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、低彩度緑領域、低彩度黄領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（５Ｄ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、高彩度青領域および高彩度青緑領域の各領域のいずれかに含まれることである。条件（５Ｅ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、低彩度青緑領域、低彩度赤領域、高彩度青領域、高彩度青緑領域、高彩度緑領域および高彩度赤領域の各領域のいずれかに含まれることである。条件（５Ｆ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度橙領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青領域、高彩度青領域、高彩度青緑領域および高彩度黄領域の各領域のいずれかに含まれることである。条件（５Ｇ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度赤領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域および高彩度黄領域の各領域のいずれかに含まれることである。条件（５Ｈ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度紫領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された高彩度青領域に含まれることである。条件（５Ｉ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度緑領域、低彩度黄領域、低彩度橙領域および高彩度黄領域の各領域のいずれかに含まれることである。条件（５Ｊ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、低彩度緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度紫領域、高彩度青領域および高彩度黄領域の各領域のいずれかに含まれることである。条件（５Ｋ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された高彩度青領域に含まれることである。条件（５Ｌ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青領域、高彩度青領域および高彩度青緑領域の各領域のいずれかに含まれることである。 The condition (5A) is that a part of the radiation angle region that is different from the first region in which the first light irradiated to a part of the first region of the radiation angle region is included in the defined white region. The second light emitted to the second region of the low-saturation blue region, low-saturation blue-green region, low-saturation green region, low-saturation yellow region, high-saturation blue region, high-saturation blue-green region, It is included in each of the high saturation green region and the high saturation yellow region. The condition (5B) is that the first light emitted to a part of the first region of the radiation angle region is included in the defined low-saturation blue region and is different from the first region in the radiation angle region The second light irradiated to a part of the second region is defined as the white region, the low saturation blue-green region, the low saturation green region, the low saturation yellow region, the low saturation orange region, and the low saturation. It is included in any of the red region, the high saturation blue region, the high saturation blue-green region, the high saturation green region, and the high saturation yellow region. Condition (5C) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low saturation blue-green region and is different from the first region in the radiation angle The second light emitted to the second region that is a part of the region is defined as the white region, the low saturation blue region, the low saturation green region, the low saturation yellow region, the low saturation purple region, and the high saturation blue region. The high saturation blue-green region, the high saturation green region, the high saturation yellow region, and the high saturation purple region. The condition (5D) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation green region and is different from the first region in the radiation angle region The second light emitted to a part of the second region is included in any one of the defined white region, low saturation blue region, high saturation blue region, and high saturation blue-green region. Condition (5E) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low saturation yellow region, and is different from the first region in the radiation angle region The second light irradiated to a part of the second region is defined as a white region, a low saturation blue region, a low saturation blue-green region, a low saturation red region, a high saturation blue region, a high saturation blue-green region, It is included in any one of the high saturation green region and the high saturation red region. The condition (5F) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation orange region and is different from the first region in the radiation angle region The second light emitted to a part of the second region is included in any one of the defined low saturation blue region, high saturation blue region, high saturation blue-green region, and high saturation yellow region. The condition (5G) is that the first light irradiated on a part of the first region of the radiation angle region is included in the defined low saturation red region and is different from the first region in the radiation angle region The second light emitted to a part of the second region is included in any of the defined white region and high saturation yellow region. The condition (5H) is that the first light irradiated on a part of the first region of the radiation angle region is included in the defined low-saturation purple region and is different from the first region in the radiation angle region The second light emitted to a part of the second region is included in the defined high saturation blue region. Condition (5I) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high-saturation blue region, and one of the radiation angle regions different from the first region. The second light emitted to the second region of the portion is included in any of the defined white region, low saturation green region, low saturation yellow region, low saturation orange region, and high saturation yellow region That is. Condition (5J) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high-saturation blue-green region and the radiation angle region is different from the first region. The second light emitted to some of the second areas is the defined white area, low saturation blue area, low saturation green area, low saturation green area, low saturation yellow area, and low saturation orange area. , A low saturation purple region, a high saturation blue region, and a high saturation yellow region. The condition (5K) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high-saturation green region, and one of the radiation angle regions different from the first region. The second light irradiated to the second region of the part is included in the defined high saturation blue region. The condition (5L) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high saturation yellow region, and is one of the radiation angle regions different from the first region. 2nd light irradiated to the 2nd area | region of a part is contained in either of each area | region of the said low chroma blue area | region, a high chroma blue area | region, and a high chroma blue green area | region.
　このような照明装置は、前記第１および第２光が上記（５Ａ）ないし（５Ｌ）のいずれかの条件を満たすので、気の散らない光で前記放射角度領域をグラデーション照明でき、人がより集中できる照明環境を提供できる。したがって、上記照明装置は、照明光の環境下に居る人に、気の散らない、集中できるという心理効果を好適に与えることができる。 In such an illuminating device, the first and second lights satisfy any one of the above conditions (5A) to (5L). Provide a lighting environment that can be concentrated. Therefore, the illuminating device can suitably give a psychological effect of being able to concentrate without being distracted to a person who is in an environment of illumination light.
　他の一態様では、上述の照明装置において、前記制御部は、前記放射角度領域の一部の第１領域に照射される第１光、および、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射される第２光が、ＣＩＥ１９７６ｕ’ｖ’色度図において、前記第１色度領域に含まれる下記（６Ａ）ないし（６Ｎ）のいずれかの条件を満たすように、前記第１および第２ＬＥＤ光源を制御する。 In another aspect, in the above-described lighting device, the control unit includes a first light that is applied to a first region that is a part of the radiation angle region, and one of the radiation angle regions that is different from the first region. In the CIE 1976 u′v ′ chromaticity diagram, the second light applied to the second region of the part satisfies the following conditions (6A) to (6N) included in the first chromaticity region: Control the first and second LED light sources.
　条件（６Ａ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される白色領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青緑領域および高彩度黄領域の各領域のいずれかに含まれることである。条件（６Ｂ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度赤領域、低彩度紫領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域および高彩度赤領域の各領域のいずれかに含まれることである。条件（６Ｃ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度黄領域、低彩度橙領域、低彩度紫領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることである。条件（６Ｄ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青緑領域、低彩度橙領域、高彩度青緑領域および高彩度赤領域の各領域のいずれかに含まれることである。条件（６Ｅ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度緑領域、低彩度橙領域、低彩度赤領域、高彩度青領域、高彩度黄領域および高彩度橙領域の各領域のいずれかに含まれることである。条件（６Ｆ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度橙領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度赤領域、低彩度紫領域、高彩度青領域および高彩度黄領域の各領域のいずれかに含まれることである。条件（６Ｇ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度赤領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域および高彩度青緑領域の各領域のいずれかに含まれることである。条件（６Ｈ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度紫領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、高彩度青領域、高彩度黄領域および高彩度赤領域の各領域のいずれかに含まれることである。条件（６Ｉ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度緑領域、低彩度橙領域および高彩度橙領域の各領域のいずれかに含まれることである。条件（６Ｊ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度緑域に含まれることである。条件（６Ｋ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される高彩度赤領域に含まれることである。条件（６Ｌ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度紫領域および高彩度橙領域の各領域のいずれかに含まれることである。条件（６Ｍ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度橙領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域、低彩度青緑領域、低彩度黄領域および高彩度青領域の各領域のいずれかに含まれることである。条件（６Ｎ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度紫領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度緑領域に含まれることである。 The condition (6A) is that the first light irradiated to a part of the first region of the radiation angle region is included in a white region defined by the following, and is one of the radiation angle regions different from the first region. The second light emitted to the second region of the area is defined by the following: low saturation green region, low saturation yellow region, low saturation orange region, low saturation red region, low saturation purple region, high saturation blue It is included in each of the green region and the high saturation yellow region. Condition (6B) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation blue region defined by the following and the radiation angle is different from the first region The second light emitted to the second region that is part of the region is defined by the following: a white region, a low saturation blue-green region, a low saturation green region, a low saturation yellow region, a low saturation red region, a low It is included in each of the saturation purple region, the high saturation blue-green region, the high saturation green region, the high saturation yellow region, the high saturation orange region, and the high saturation red region. Condition (6C) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation blue-green region defined by the following and is different from the first region. The second light applied to the second region of the angular region is defined by the following low saturation yellow region, low saturation orange region, low saturation purple region, high saturation orange region, high saturation red region, and high saturation purple. It is included in any one of the areas. Condition (6D) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation green region defined by the following, and the radiation angle is different from the first region The second light irradiated to a part of the second region is included in any of the low saturation blue-green region, the low saturation orange region, the high saturation blue-green region, and the high saturation red region defined by the following: It is to be. Condition (6E) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation yellow region defined by the following, and the radiation angle is different from the first region The low light green region, the low chroma orange region, the low chroma red region, the high chroma blue region, the high chroma yellow region, and the high chroma orange region defined by It is included in one of the areas. Condition (6F) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation orange region defined by the following, and the radiation angle is different from the first region The low light blue area, the low chroma blue-green area, the low chroma green area, the low chroma yellow area, and the low chroma red defined by It is included in any one of the region, the low saturation purple region, the high saturation blue region, and the high saturation yellow region. Condition (6G) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation red region defined by the following, and the radiation angle is different from the first region The second light emitted to the second region that is a part of the region is defined as follows: white region, low saturation blue region, low saturation blue-green region, low saturation green region, low saturation yellow region, low It is included in any one of the saturation orange region and the high saturation blue-green region. Condition (6H) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation purple region defined by the following, and the radiation angle is different from the first region The second light emitted to the second region of a part of the region is defined by the low saturation blue-green region, the low saturation yellow region, the low saturation orange region, the low saturation red region, the high saturation blue region, It is included in each of the high saturation yellow region and the high saturation red region. Condition (6I) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation blue region defined by the following, and the radiation angle region different from the first region is The second light emitted to some of the second regions is included in any of the white region, the low saturation green region, the low saturation orange region, and the high saturation orange region defined by the following. Condition (6J) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high saturation blue-green region defined by the following, and the radiation angle region different from the first region The second light irradiated to a part of the second region is included in the low-saturation green region defined by the following. The condition (6K) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation green region defined by the following, and the radiation angle region is different from the first region. The second light emitted to some of the second regions is included in the high saturation red region defined by the following. The condition (6L) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation yellow region defined by the following, and the radiation angle region different from the first region is The second light emitted to some of the second regions is included in any one of the white region, the low saturation purple region, and the high saturation orange region defined by the following. The condition (6M) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation orange region defined by the following, and the radiation angle region is different from the first region. The second light emitted to some of the second areas is included in any one of the low saturation blue area, the low saturation blue green area, the low saturation yellow area, and the high saturation blue area defined by the following: That is. Condition (6N) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation purple region defined by the following, and the radiation angle region is different from the first region. The second light emitted to some of the second areas is included in the low saturation green area defined by the following.
　このような照明装置は、前記第１および第２光が上記（６Ａ）ないし（６Ｎ）のいずれかの条件を満たすので、眠気を誘う光で前記放射角度領域をグラデーション照明でき、人がより入眠し易い照明環境を提供できる。したがって、上記照明装置は、照明光の環境下に居る人に、眠気という心理効果を好適に与えることができる。 In such an illumination device, since the first and second lights satisfy any one of the above conditions (6A) to (6N), the radiation angle region can be gradationally illuminated with light that induces drowsiness, and a person can sleep more asleep. It is possible to provide an easy lighting environment. Therefore, the illuminating device can suitably give a psychological effect of sleepiness to a person who is in an environment of illumination light.
　他の一態様では、上述の照明装置において、前記制御部は、前記放射角度領域の一部の第１領域に照射される第１光、および、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射される第２光が、ＣＩＥ１９７６ｕ’ｖ’色度図において、前記第１色度領域に含まれる下記（７Ａ）ないし（７Ｉ）のいずれかの条件を満たすように、前記第１および第２ＬＥＤ光源を制御する。 In another aspect, in the above-described lighting device, the control unit includes a first light that is applied to a first region that is a part of the radiation angle region, and one of the radiation angle regions that is different from the first region. In the CIE 1976 u′v ′ chromaticity diagram, the second light emitted to the second region of the part satisfies the following conditions (7A) to (7I) included in the first chromaticity region: Control the first and second LED light sources.
　条件（７Ａ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される白色領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される高彩度紫領域に含まれることである。条件（７Ｂ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される高彩度黄領域に含まれることである。条件（７Ｃ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度赤領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される高彩度橙領域に含まれることである。条件（７Ｄ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度紫領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される高彩度紫領域に含まれることである。条件（７Ｅ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度黄領域、低彩度赤領域、高彩度黄領域および高彩度橙領域の各領域のいずれかに含まれることである。条件（７Ｆ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される高彩度緑領域および高彩度赤領域の各領域のいずれかに含まれることである。条件（７Ｇ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度橙領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度紫領域、高彩度赤および高彩度紫領域の各領域のいずれかに含まれることである。条件（７Ｈ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度赤領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度橙領域、高彩度青領域、高彩度緑領域、高彩度黄領域および高彩度橙領域の各領域のいずれかに含まれることである。条件（７Ｉ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度紫領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域、低彩度青緑領域、低彩度黄領域、低彩度紫領域、高彩度青領域、高彩度黄領域、高彩度橙領域および高彩度赤領域の各領域のいずれかに含まれることである。 The condition (7A) is that the first light irradiated to a part of the first region of the radiation angle region is included in a white region defined by the following, and is one of the radiation angle regions different from the first region. The second light emitted to the second region of the part is included in the high-saturation purple region defined by the following. The condition (7B) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation blue-green region defined by the following and is different from the first region. The second light emitted to the second region that is a part of the angle region is included in the high saturation yellow region defined by the following. Condition (7C) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation red region defined by the following, and the radiation angle is different from the first region That is, the second light irradiated to the second region which is a part of the region is included in the high saturation orange region defined by the following. Condition (7D) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation purple region defined by the following, and the radiation angle is different from the first region That is, the second light irradiated to the second region which is a part of the region is included in the high-saturation purple region defined by the following. The condition (7E) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation green region defined by the following, and the radiation angle region is different from the first region. The second light emitted to some of the second regions is included in any of the low saturation yellow region, the low saturation red region, the high saturation yellow region, and the high saturation orange region defined by the following: . The condition (7F) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation yellow region defined by the following, and the radiation angle region different from the first region The second light irradiated to a part of the second region is included in any one of the high saturation green region and the high saturation red region defined by the following. Condition (7G) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation orange region defined by the following, and the radiation angle region is different from the first region. The second light emitted to some of the second areas is included in any one of the low saturation purple area, the high saturation red area, and the high saturation purple area defined by the following. The condition (7H) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation red region defined by the following, and the radiation angle region is different from the first region. The second light emitted to some of the second regions is included in any of the low saturation orange region, the high saturation blue region, the high saturation green region, the high saturation yellow region, and the high saturation orange region defined by the following. It is. Condition (7I) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation purple region defined by the following, and the radiation angle region is different from the first region. The second light emitted to some of the second areas is defined by the following: low saturation blue area, low saturation blue-green area, low saturation yellow area, low saturation purple area, high saturation blue area, high saturation yellow It is included in any one of the area, the high saturation orange area, and the high saturation red area.
　このような照明装置は、前記第１および第２光が上記（７Ａ）ないし（７Ｉ）のいずれかの条件を満たすので、眠気を覚ます光で前記放射角度領域をグラデーション照明でき、人の眠気を覚ましてすっきりと目覚めることができる照明環境を提供できる。したがって、上記照明装置は、照明光の環境下に居る人に、眠気を覚ますという心理効果を好適に与えることができる。 In such an illuminating device, the first and second lights satisfy any one of the above conditions (7A) to (7I), so that the radiation angle area can be gradationally illuminated with the light that wakes up sleepiness, thereby reducing human sleepiness. It can provide a lighting environment that can be awakened and awakened. Therefore, the illuminating device can suitably give a psychological effect of awakening sleepiness to a person in an environment of illumination light.
　なお、上述において、各領域は、次のように定義される。 In the above description, each area is defined as follows.
　白色領域は、（ｕ’，ｖ’）の座標点Ｒ＿１（０．２６８、０．４８２）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）、ＯＲ＿１（０．２５７、０．４８９）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）、Ｙ＿１（０．２１７、０．４９４）、Ｙ－Ｇ＿１（０．２０９、０．４９５）、Ｇ＿１（０．１７９、０．４９７）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）、ＢＧ＿１（０．１８６、０．４５５）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）、Ｂ＿１（０．２０１、０．３９７）、Ｂ－Ｐ＿１（０．２１９、０．４１３）、Ｐ＿１（０．２３７、０．４２８）、Ｐ－Ｒ＿１（０．２５２、０．４５５）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 White areas are coordinate points R_1 (0.268, 0.482), R-OR_1 (0.262, 0.485), OR_1 (0.257, 0.489), OR of (u ′, v ′). -Y_1 (0.233, 0.492), Y_1 (0.217, 0.494), Y-G_1 (0.209, 0.495), G_1 (0.179, 0.497), G-BG_1 (0.182, 0.476), BG_1 (0.186, 0.455), BG-B_1 (0.188, 0.445), B_1 (0.201, 0.397), BP_1 (0 .219, 0.413), P_1 (0.237, 0.428), and PR_1 (0.252, 0.455) are inner regions surrounded by a closed loop line.
　低彩度赤領域は、（ｕ’，ｖ’）の座標点Ｒ－ＯＲ＿３（０．３６７、０．５０９）、Ｒ＿３（０．３８２、０．４９８）、Ｐ－Ｒ＿３（０．３３６、０．４１７）、Ｐ－Ｒ＿１（０．２５２、０．４５５）、Ｒ＿１（０．２６８、０．４８２）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The low-saturation red areas are represented by coordinate points R-OR_3 (0.367, 0.509), R_3 (0.382, 0.498), and PR_3 (0.336, 0) of (u ′, v ′). .417), P-R_1 (0.252, 0.455), R_1 (0.268, 0.482), and R-OR_1 (0.262, 0.485) are surrounded by a closed loop line. The inner area.
　低彩度橙領域は、（ｕ’，ｖ’）の座標点ＯＲ－Ｙ＿３（０．２７９、０．５３０）、ＯＲ＿３（０．３５１、０．５２１）、Ｒ－ＯＲ＿３（０．３６７、０．５０９）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）、ＯＲ＿１（０．２５７、０．４８９）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The low-saturation orange region includes coordinate points OR-Y_3 (0.279, 0.530), OR_3 (0.351, 0.521), R-OR_3 (0.367, 0) of (u ′, v ′). .509), R-OR_1 (0.262, 0.485), OR_1 (0.257, 0.489), and OR-Y_1 (0.233, 0.492) are surrounded by a closed loop line. The inner area.
　低彩度黄領域は、（ｕ’，ｖ’）の座標点Ｙ－Ｇ＿３（０．２０６、０．５３８）、Ｙ＿３（０．２３１、０．５３６）、ＯＲ－Ｙ＿３（０．２７９、０．５３０）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）、Ｙ＿１（０．２１７、０．４９４）、Ｙ－Ｇ＿１（０．２０９、０．４９５）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The low saturation yellow area is represented by the coordinate points YG_3 (0.206, 0.538), Y_3 (0.231, 0.536), OR-Y_3 (0.279, 0) of (u ′, v ′). .530), OR-Y_1 (0.233, 0.492), Y_1 (0.217, 0.494), and YG_1 (0.209, 0.495) are surrounded by a closed loop line. The inner area.
　低彩度緑領域は、（ｕ’，ｖ’）の座標点Ｇ－ＢＧ＿３（０．１２６、０．４８１）、Ｇ＿３（０．１１６、０．５４４）、Ｙ－Ｇ＿３（０．２０６、０．５３８）、Ｙ－Ｇ＿１（０．２０９、０．４９５）、Ｇ＿１（０．１７９、０．４９７）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The low-saturation green areas are coordinate points G-BG_3 (0.126, 0.481), G_3 (0.116, 0.544), Y-G_3 (0.206, 0) of (u ′, v ′). .538), YG_1 (0.209, 0.495), G_1 (0.179, 0.497), and G-BG_1 (0.182, 0.476) are surrounded by a closed loop line. The inner area.
　低彩度青緑領域は、（ｕ’，ｖ’）の座標点ＢＧ－Ｂ＿３（０．１４４、０．３８９）、ＢＧ＿３（０．１３６、０．４１７）、Ｇ－ＢＧ＿３（０．１２６、０．４８１）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）、ＢＧ＿１（０．１８６、０．４５５）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The low-saturation blue-green regions are coordinate points BG-B_3 (0.144, 0.389), BG_3 (0.136, 0.417), G-BG_3 (0.126, 0.481), G-BG_1 (0.182, 0.476), BG_1 (0.186, 0.455), and BG-B_1 (0.188, 0.445). This is the inner area.
　低彩度青領域は、（ｕ’，ｖ’）の座標点Ｂ－Ｐ＿３（０．２３６、０．２９１）、Ｂ＿３（０．１８２、０．２４５）、ＢＧ－Ｂ＿３（０．１４４、０．３８９）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）、Ｂ＿１（０．２０１、０．３９７）、Ｂ－Ｐ＿１（０．２１９、０．４１３）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The low-saturation blue region is represented by coordinate points BP_3 (0.236, 0.291), B_3 (0.182, 0.245), BG-B_3 (0.144, 0) of (u ′, v ′). 389), BG-B_1 (0.188, 0.445), B_1 (0.201, 0.397), and BP_1 (0.219, 0.413) are surrounded by a closed loop line. The inner area.
　低彩度紫領域は、（ｕ’，ｖ’）の座標点Ｐ－Ｒ＿３（０．３３６、０．４１７）、Ｐ＿３（０．２９１、０．３３６）、Ｂ－Ｐ＿３（０．２３６、０．２９１）、Ｂ－Ｐ＿１（０．２１９、０．４１３）、Ｐ＿１（０．２３７、０．４２８）、Ｐ－Ｒ＿１（０．２５２、０．４５５）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The low-saturation purple areas are coordinate points PR_3 (0.336, 0.417), P_3 (0.291, 0.336), BP_3 (0.236, 0) of (u ′, v ′). .291), BP_1 (0.219, 0.413), P_1 (0.237, 0.428), and PR_1 (0.252, 0.455) are surrounded by a closed loop line. The inner area.
　高彩度赤領域は、（ｕ’，ｖ’）の座標点Ｒ－ＯＲ＿４（０．４１９、０．５２１）、Ｒ＿４（０．４４０、０．５０６）、Ｐ－Ｒ＿４（０．３７９、０．３９８）、Ｐ－Ｒ＿３（０．３３６、０．４１７）、Ｒ＿３（０．３８２、０．４９８）、Ｒ－ＯＲ＿３（０．３６７、０．５０９）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The high-saturation red region includes coordinate points R-OR_4 (0.419, 0.521), R_4 (0.440, 0.506), and PR-4 (0.379, 0.398) of (u ′, v ′). ), P—R — 3 (0.336, 0.417), R — 3 (0.382, 0.498), R—OR — 3 (0.367, 0.509) It is.
　高彩度橙領域は、（ｕ’，ｖ’）の座標点ＯＲ－Ｙ＿４（０．３０２、０．５４９）、ＯＲ＿４（０．３９８、０．５３７）、Ｒ－ＯＲ＿４（０．４１９、０．５２１）、Ｒ－ＯＲ＿３（０．３６７、０．５０９）、ＯＲ＿３（０．３５１、０．５２１）、ＯＲ－Ｙ＿３（０．２７９、０．５３０）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The high-saturation orange areas are represented by coordinate points OR-Y_4 (0.302, 0.549), OR_4 (0.398, 0.537), R-OR_4 (0.419, 0.521) of (u ′, v ′). ), R-OR — 3 (0.367, 0.509), OR — 3 (0.351, 0.521), OR-Y — 3 (0.279, 0.530) It is.
　高彩度黄領域は、（ｕ’，ｖ’）の座標点Ｙ－Ｇ＿４（０．２０４、０．５５９）、Ｙ＿４（０．２３７、０．５５７）、ＯＲ－Ｙ＿４（０．３０２、０．５４９）、ＯＲ－Ｙ＿３（０．２７９、０．５３０）、Ｙ＿３（０．２３１、０．５３６）、Ｙ－Ｇ＿３（０．２０６、０．５３８）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The high saturation yellow area is represented by the coordinate points YG_4 (0.204, 0.559), Y_4 (0.237, 0.557), OR-Y_4 (0.302, 0.549) of (u ′, v ′). ), OR-Y — 3 (0.279, 0.530), Y — 3 (0.231, 0.536), YG — 3 (0.206, 0.538) It is.
　高彩度緑領域は、（ｕ’，ｖ’）の座標点Ｇ－ＢＧ＿４（０．０９８、０．４８３）、Ｇ＿４（０．０８５、０．５６８）、Ｙ－Ｇ＿４（０．２０４、０．５５９）、Ｙ－Ｇ＿３（０．２０６、０．５３８）、Ｇ＿３（０．１１６、０．５４４）、Ｇ－ＢＧ＿３（０．１２６、０．４８１）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The high-saturation green region includes coordinate points G-BG_4 (0.098, 0.483), G_4 (0.085, 0.568), Y-G_4 (0.204, 0.559) of (u ′, v ′). ), YG_3 (0.206, 0.538), G_3 (0.116, 0.544), G-BG_3 (0.126, 0.481) and the inner region surrounded by the closed loop line connecting the points It is.
　高彩度青緑領域は、（ｕ’，ｖ’）の座標点ＢＧ－Ｂ＿４（０．１２２、０．３６１）、ＢＧ＿４（０．１１２、０．３９８）、Ｇ－ＢＧ＿４（０．０９８、０．４８３）、Ｇ－ＢＧ＿３（０．１２６、０．４８１）、ＢＧ＿３（０．１３６、０．４１７）、ＢＧ－Ｂ＿３（０．１４４、０．３８９）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The high-saturation blue-green region includes coordinate points BG-B_4 (0.122, 0.361), BG_4 (0.112, 0.398), G-BG_4 (0.098, 0. 483), G-BG_3 (0.126, 0.481), BG_3 (0.136, 0.417), and BG-B_3 (0.144, 0.389). It is an area.
　高彩度青領域は、（ｕ’，ｖ’）の座標点Ｂ－Ｐ＿４（０．２４５、０．２３０）、Ｂ＿４（０．１７３、０．１６９）、ＢＧ－Ｂ＿４（０．１２２、０．３６１）、ＢＧ－Ｂ＿３（０．１４４、０．３８９）、Ｂ＿３（０．１８２、０．２４５）、Ｂ－Ｐ＿３（０．２３６、０．２９１）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The high-saturation blue areas are coordinate points BP_4 (0.245, 0.230), B_4 (0.173, 0.169), BG-B_4 (0.122, 0.361) of (u ′, v ′). ), BG-B_3 (0.144, 0.389), B_3 (0.182, 0.245), BP_3 (0.236, 0.291), the inner region surrounded by the closed loop line connecting the points It is.
　高彩度紫領域は、（ｕ’，ｖ’）の座標点Ｐ－Ｒ＿４（０．３７９、０．３９８）、Ｐ＿４（０．３１７、０．２９１）、Ｂ－Ｐ＿４（０．２４５、０．２３０）、Ｂ－Ｐ＿３（０．２３６、０．２９１）、Ｐ＿３（０．２９１、０．３３６）、Ｐ－Ｒ＿３（０．３３６、０．４１７）の各点を結ぶ閉ループ線によって囲まれる内側領域である。 The high-saturation purple region is represented by coordinate points PR_4 (0.379, 0.398), P_4 (0.317, 0.291), and BP_4 (0.245, 0.230) of (u ′, v ′). ), BP_3 (0.236, 0.291), P_3 (0.291, 0.336), PR_3 (0.336, 0.417), and the inner region surrounded by the closed loop line connecting the points It is.
　そして、他の一態様にかかる照明方法は、複数の色の光を放射可能な第１および第２ＬＥＤ光源それぞれを、互いに異なる色の第１および第２光であって前記第１光の一部と前記第２項の一部とを放射角度領域で互いに重なるように放射させる照明方法であって、前記放射角度領域に照射された第１および第２光が、ＣＩＥ１９７６ｕ’ｖ’色度図において、（ｕ’，ｖ’）の座標点Ｒ＿４（０．４４０、０．５０６）、Ｒ－ＯＲ＿４（０．４１９、０．５２１）、ＯＲ＿４（０．３９８、０．５３７）、ＯＲ－Ｙ＿４（０．３０２、０．５４９）、Ｙ＿４（０．２３７，０．５５７）、Ｙ－Ｇ＿４（０．２０４、０．５５９）、Ｇ＿４（０．０８５、０．５６８）、Ｇ－ＢＧ＿４（０．０９８、０．４８３）、ＢＧ＿４（０．１１２、０．３９８）、ＢＧ－Ｂ＿４（０．１２２、０．３６１）、Ｂ＿４（０．１７３、０．１６９）、Ｂ－Ｐ＿４（０．２４５、０．２３０）、Ｐ＿４（０．３１７、０．２９１）、Ｐ－Ｒ＿４（０．３７９、０．３９８）の各点を結ぶことによって得られる上限境界閉ループ線と、（ｕ’，ｖ’）の座標点Ｒ＿１（０．２６８、０．４８２）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）、ＯＲ＿１（０．２５７、０．４８９）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）、Ｙ＿１（０．２１７、０．４９４）、Ｙ－Ｇ＿１（０．２０９、０．４９５）、Ｇ＿１（０．１７９、０．４９７）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）、ＢＧ＿１（０．１８６、０．４５５）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）、Ｂ＿１（０．２０１、０．３９７）、Ｂ－Ｐ＿１（０．２１９、０．４１３）、Ｐ＿１（０．２３７、０．４２８）、Ｐ－Ｒ＿１（０．２５２、０．４５５）の各点を結ぶことによって得られる下限境界閉ループ線との間の第１色度領域に含まれるように、前記第１および第２ＬＥＤ光源を放射させる。 The illumination method according to another aspect includes a first LED light source and a second LED light source capable of emitting a plurality of colors of light, which are first and second lights of different colors, and a part of the first light. And a part of the second term are emitted so as to overlap each other in a radiation angle region, and the first and second lights irradiated on the radiation angle region are represented in a CIE 1976 u′v ′ chromaticity diagram. , (U ′, v ′) coordinate points R_4 (0.440, 0.506), R-OR_4 (0.419, 0.521), OR_4 (0.398, 0.537), OR-Y_4 ( 0.302, 0.549), Y_4 (0.237, 0.557), Y-G_4 (0.204, 0.559), G_4 (0.085, 0.568), G-BG_4 (0. 098, 0.483), BG_4 (0.112, 0 398), BG-B_4 (0.122, 0.361), B_4 (0.173, 0.169), BP_4 (0.245, 0.230), P_4 (0.317, 0.291) , PR_4 (0.379, 0.398), and an upper boundary closed loop line obtained by connecting the points, and coordinate points R_1 (0.268, 0.482), R of (u ′, v ′) -OR_1 (0.262, 0.485), OR_1 (0.257, 0.489), OR-Y_1 (0.233, 0.492), Y_1 (0.217, 0.494), Y-G_1 (0.209, 0.495), G_1 (0.179, 0.497), G-BG_1 (0.182, 0.476), BG_1 (0.186, 0.455), BG-B_1 (0 .188, 0.445), B_1 (0.201,. 97), BP_1 (0.219, 0.413), P_1 (0.237, 0.428), and PR_1 (0.252, 0.455) are connected to the lower limit boundary. The first and second LED light sources are emitted so as to be included in a first chromaticity region between the closed loop line.
　さらに、他の一態様にかかる照明方法は、複数の色の光を放射可能な第１および第２ＬＥＤ光源それぞれを、互いに異なる色の第１および第２光を放射するように制御する制御工程と、前記第１ＬＥＤ光源から放射された第１光の一部と前記第２ＬＥＤ光源から放射された第２光の一部とを放射角度領域で互いに重ねるオーバラップ工程とを備える。そして、前記制御工程は、前記放射角度領域に照射される第１および第２光の最大彩度となる光の色度領域が、ＣＩＥ１９７６ｕ’ｖ’色度図において、（ｕ’，ｖ’）の座標点Ｒ＿４（０．４４０、０．５０６）、Ｒ－ＯＲ＿４（０．４１９、０．５２１）、ＯＲ＿４（０．３９８、０．５３７）、ＯＲ－Ｙ＿４（０．３０２、０．５４９）、Ｙ＿４（０．２３７，０．５５７）、Ｙ－Ｇ＿４（０．２０４、０．５５９）、Ｇ＿４（０．０８５、０．５６８）、Ｇ－ＢＧ＿４（０．０９８、０．４８３）、ＢＧ＿４（０．１１２、０．３９８）、ＢＧ－Ｂ＿４（０．１２２、０．３６１）、Ｂ＿４（０．１７３、０．１６９）、Ｂ－Ｐ＿４（０．２４５、０．２３０）、Ｐ＿４（０．３１７、０．２９１）、Ｐ－Ｒ＿４（０．３７９、０．３９８）の各点を結ぶことによって得られる上限境界閉ループ線と、（ｕ’，ｖ’）の座標点Ｒ＿１（０．２６８、０．４８２）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）、ＯＲ＿１（０．２５７、０．４８９）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）、Ｙ＿１（０．２１７、０．４９４）、Ｙ－Ｇ＿１（０．２０９、０．４９５）、Ｇ＿１（０．１７９、０．４９７）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）、ＢＧ＿１（０．１８６、０．４５５）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）、Ｂ＿１（０．２０１、０．３９７）、Ｂ－Ｐ＿１（０．２１９、０．４１３）、Ｐ＿１（０．２３７、０．４２８）、Ｐ－Ｒ＿１（０．２５２、０．４５５）の各点を結ぶことによって得られる下限境界閉ループ線との間の第１色度領域に含まれるように、前記第１および第２ＬＥＤ光源を制御する。 Furthermore, the illumination method according to another aspect includes a control step of controlling the first and second LED light sources capable of emitting a plurality of colors of light so as to emit the first and second lights of different colors, respectively. And an overlapping step of overlapping a part of the first light emitted from the first LED light source and a part of the second light emitted from the second LED light source in a radiation angle region. In the control step, the chromaticity region of light that is the maximum saturation of the first and second lights irradiated on the radiation angle region is represented by (u ′, v ′) in the CIE 1976 u′v ′ chromaticity diagram. Coordinate points R_4 (0.440, 0.506), R-OR_4 (0.419, 0.521), OR_4 (0.398, 0.537), OR-Y_4 (0.302, 0.549) , Y_4 (0.237, 0.557), Y-G_4 (0.204, 0.559), G_4 (0.085, 0.568), G-BG_4 (0.098, 0.483), BG_4 (0.112, 0.398), BG-B_4 (0.122, 0.361), B_4 (0.173, 0.169), BP_4 (0.245, 0.230), P_4 (0 317, 0.291), PR_4 (0.379, 0. 98) an upper limit boundary closed loop line obtained by connecting the points, and coordinate points R_1 (0.268, 0.482) and R-OR_1 (0.262, 0.485) of (u ′, v ′). , OR_1 (0.257, 0.489), OR-Y_1 (0.233, 0.492), Y_1 (0.217, 0.494), Y-G_1 (0.209, 0.495), G_1 (0.179, 0.497), G-BG_1 (0.182, 0.476), BG_1 (0.186, 0.455), BG-B_1 (0.188, 0.445), B_1 (0 .201, 0.397), BP_1 (0.219, 0.413), P_1 (0.237, 0.428), PR_1 (0.252, 0.455) are connected. The first chromaticity region between the lower bound closed loop line obtained by To be included in, for controlling the first and second 2LED light source.
　このような照明方法では、互いに異なる色で第１および第２ＬＥＤ光源から放射された第１および第２光は、それら各一部が放射角度領域で互いに重なるように放射されるので、上記照明方法は、前記放射角度領域をグラデーション照明できる。そして、上記照明方法は、前記放射角度領域に照射された第１および第２光が上記第１色度領域に含まれるので、人に受け入れられる光で前記放射角度領域をグラデーション照明できる。したがって、上記照明方法は、照明光の環境下に居る人に、任意に所望の色相組合せを選択した場合も、心理的に受け入れられる好適な照明を提供できる。 In such an illumination method, the first and second lights emitted from the first and second LED light sources in different colors are emitted so that each part thereof overlaps each other in the radiation angle region. Can gradationally illuminate the radiation angle region. And since the said 1st and 2nd light irradiated to the said radiation | emission angle area | region is contained in the said 1st chromaticity area | region, the said illumination method can carry out gradation illumination of the said radiation | emission angle area | region with the light accepted by a person. Therefore, the illumination method can provide a person who is in the environment of illumination light with suitable illumination that is psychologically acceptable even when a desired hue combination is arbitrarily selected.
　この出願は、２０１４年２月１９日に出願された日本国特許出願特願２０１４－２９７９１を基礎とするものであり、その内容は、本願に含まれるものである。 This application is based on Japanese Patent Application No. 2014-29791 filed on February 19, 2014, the contents of which are included in the present application.
　本発明を表現するために、上述において図面を参照しながら実施形態を通して本発明を適切且つ十分に説明したが、当業者であれば上述の実施形態を変更および／または改良することは容易に為し得ることであると認識すべきである。したがって、当業者が実施する変更形態または改良形態が、請求の範囲に記載された請求項の権利範囲を離脱するレベルのものでない限り、当該変更形態または当該改良形態は、当該請求項の権利範囲に包括されると解釈される。 In order to express the present invention, the present invention has been properly and fully described through the embodiments with reference to the drawings. However, those skilled in the art can easily change and / or improve the above-described embodiments. It should be recognized that this is possible. Therefore, unless the modifications or improvements implemented by those skilled in the art are at a level that departs from the scope of the claims recited in the claims, the modifications or improvements are not covered by the claims. To be construed as inclusive.
　本発明によれば、照明装置および照明方法を提供できる。
  According to the present invention, an illumination device and an illumination method can be provided.

Claims (9)

  1. 　複数の色の光を放射可能な第１および第２ＬＥＤ光源を有し、前記第１ＬＥＤ光源から放射される第１光の一部と前記第２ＬＥＤ光源から放射される第２光の一部とが放射角度領域で互いに重なるように前記第１および第２光を放射する光源部と、
    　互いに異なる色で前記第１および第２光を放射するように前記第１および第２ＬＥＤ光源を制御する制御部とを備え、
    　前記制御部は、前記放射角度領域に照射される第１および第２光の最大彩度となる光の色度領域が、ＣＩＥ１９７６ｕ’ｖ’色度図において、（ｕ’，ｖ’）の座標点Ｒ＿４（０．４４０、０．５０６）、Ｒ－ＯＲ＿４（０．４１９、０．５２１）、ＯＲ＿４（０．３９８、０．５３７）、ＯＲ－Ｙ＿４（０．３０２、０．５４９）、Ｙ＿４（０．２３７，０．５５７）、Ｙ－Ｇ＿４（０．２０４、０．５５９）、Ｇ＿４（０．０８５、０．５６８）、Ｇ－ＢＧ＿４（０．０９８、０．４８３）、ＢＧ＿４（０．１１２、０．３９８）、ＢＧ－Ｂ＿４（０．１２２、０．３６１）、Ｂ＿４（０．１７３、０．１６９）、Ｂ－Ｐ＿４（０．２４５、０．２３０）、Ｐ＿４（０．３１７、０．２９１）、Ｐ－Ｒ＿４（０．３７９、０．３９８）の各点を結ぶことによって得られる上限境界閉ループ線と、（ｕ’，ｖ’）の座標点Ｒ＿１（０．２６８、０．４８２）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）、ＯＲ＿１（０．２５７、０．４８９）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）、Ｙ＿１（０．２１７、０．４９４）、Ｙ－Ｇ＿１（０．２０９、０．４９５）、Ｇ＿１（０．１７９、０．４９７）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）、ＢＧ＿１（０．１８６、０．４５５）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）、Ｂ＿１（０．２０１、０．３９７）、Ｂ－Ｐ＿１（０．２１９、０．４１３）、Ｐ＿１（０．２３７、０．４２８）、Ｐ－Ｒ＿１（０．２５２、０．４５５）の各点を結ぶことによって得られる下限境界閉ループ線との間の第１色度領域に含まれるように、前記第１および第２ＬＥＤ光源を制御すること
    　を特徴とする照明装置。     First and second LED light sources capable of emitting light of a plurality of colors, a part of the first light emitted from the first LED light source and a part of the second light emitted from the second LED light source A light source unit that emits the first and second light so as to overlap each other in a radiation angle region;
    A controller that controls the first and second LED light sources to emit the first and second light in different colors,
    In the CIE 1976 u′v ′ chromaticity diagram, the control unit has coordinates of (u ′, v ′) as the chromaticity region of light that is the maximum saturation of the first and second lights irradiated on the radiation angle region. Point R_4 (0.440, 0.506), R-OR_4 (0.419, 0.521), OR_4 (0.398, 0.537), OR-Y_4 (0.302, 0.549), Y_4 (0.237, 0.557), YG_4 (0.204, 0.559), G_4 (0.085, 0.568), G-BG_4 (0.098, 0.483), BG_4 (0 112, 0.398), BG-B_4 (0.122, 0.361), B_4 (0.173, 0.169), BP_4 (0.245, 0.230), P_4 (0.317) , 0.291), and PR_4 (0.379, 0.398) The upper limit boundary closed loop line obtained by connecting, and the coordinate points R_1 (0.268, 0.482), R-OR_1 (0.262, 0.485), OR_1 (0.257) of (u ′, v ′) , 0.489), OR-Y_1 (0.233, 0.492), Y_1 (0.217, 0.494), Y-G_1 (0.209, 0.495), G_1 (0.179, 0) .497), G-BG_1 (0.182, 0.476), BG_1 (0.186, 0.455), BG-B_1 (0.188, 0.445), B_1 (0.201, 0.397) ), BP_1 (0.219, 0.413), P_1 (0.237, 0.428), PR_1 (0.252, 0.455) To be included in the first chromaticity region between the line Lighting apparatus characterized by controlling said first and second 2LED light source.
  2. 　前記制御部は、前記放射角度領域の一部の第１領域に照射される第１光、および、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射される第２光が、ＣＩＥ１９７６ｕ’ｖ’色度図において、前記第１色度領域に含まれる下記（２Ａ）ないし（２Ｍ）のいずれかの条件を満たすように、前記第１および第２ＬＥＤ光源を制御すること
    　を特徴とする請求項１に記載の照明装置。
    　条件（２Ａ）は、前記第１領域に照射される第１光が下記によって定義される白色領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることであり、
    　条件（２Ｂ）は、前記第１領域に照射される第１光が下記によって定義される低彩度青領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることであり、
    　条件（２Ｃ）は、前記第１領域に照射される第１光が下記によって定義される低彩度青緑領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることであり、
    　条件（２Ｄ）は、前記第１領域に照射される第１光が下記によって定義される低彩度緑領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることであり、
    　条件（２Ｅ）は、前記第１領域に照射される第１光が下記によって定義される低彩度黄領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることであり、
    　条件（２Ｆ）は、前記第１領域に照射される第１光が下記によって定義される低彩度橙領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることであり、
    　条件（２Ｇ）は、前記第１領域に照射される第１光が下記によって定義される低彩度赤領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることであり、
    　条件（２Ｈ）は、前記第１領域に照射される第１光が下記によって定義される低彩度紫領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることであり、
    　条件（２Ｉ）は、前記第１領域に照射される第１光が下記によって定義される高彩度青領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることであり、
    　条件（２Ｊ）は、前記第１領域に照射される第１光が下記によって定義される高彩度青緑領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることであり、
    　条件（２Ｋ）は、前記第１領域に照射される第１光が下記によって定義される高彩度緑領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度黄領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることであり、
    　条件（２Ｌ）は、前記第１領域に照射される第１光が下記によって定義される高彩度黄領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることであり、
    　条件（２Ｍ）は、前記第１領域に照射される第１光が下記によって定義される高彩度橙領域に含まれ、かつ、前記第２領域に照射される第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることであり、
    　白色領域は、（ｕ’，ｖ’）の座標点Ｒ＿１（０．２６８、０．４８２）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）、ＯＲ＿１（０．２５７、０．４８９）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）、Ｙ＿１（０．２１７、０．４９４）、Ｙ－Ｇ＿１（０．２０９、０．４９５）、Ｇ＿１（０．１７９、０．４９７）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）、ＢＧ＿１（０．１８６、０．４５５）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）、Ｂ＿１（０．２０１、０．３９７）、Ｂ－Ｐ＿１（０．２１９、０．４１３）、Ｐ＿１（０．２３７、０．４２８）、Ｐ－Ｒ＿１（０．２５２、０．４５５）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　低彩度赤領域は、（ｕ’，ｖ’）の座標点Ｒ－ＯＲ＿３（０．３６７、０．５０９）、Ｒ＿３（０．３８２、０．４９８）、Ｐ－Ｒ＿３（０．３３６、０．４１７）、Ｐ－Ｒ＿１（０．２５２、０．４５５）、Ｒ＿１（０．２６８、０．４８２）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　低彩度橙領域は、（ｕ’，ｖ’）の座標点ＯＲ－Ｙ＿３（０．２７９、０．５３０）、ＯＲ＿３（０．３５１、０．５２１）、Ｒ－ＯＲ＿３（０．３６７、０．５０９）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）、ＯＲ＿１（０．２５７、０．４８９）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　低彩度黄領域は、（ｕ’，ｖ’）の座標点Ｙ－Ｇ＿３（０．２０６、０．５３８）、Ｙ＿３（０．２３１、０．５３６）、ＯＲ－Ｙ＿３（０．２７９、０．５３０）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）、Ｙ＿１（０．２１７、０．４９４）、Ｙ－Ｇ＿１（０．２０９、０．４９５）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　低彩度緑領域は、（ｕ’，ｖ’）の座標点Ｇ－ＢＧ＿３（０．１２６、０．４８１）、Ｇ＿３（０．１１６、０．５４４）、Ｙ－Ｇ＿３（０．２０６、０．５３８）、Ｙ－Ｇ＿１（０．２０９、０．４９５）、Ｇ＿１（０．１７９、０．４９７）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　低彩度青緑領域は、（ｕ’，ｖ’）の座標点ＢＧ－Ｂ＿３（０．１４４、０．３８９）、ＢＧ＿３（０．１３６、０．４１７）、Ｇ－ＢＧ＿３（０．１２６、０．４８１）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）、ＢＧ＿１（０．１８６、０．４５５）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　低彩度青領域は、（ｕ’，ｖ’）の座標点Ｂ－Ｐ＿３（０．２３６、０．２９１）、Ｂ＿３（０．１８２、０．２４５）、ＢＧ－Ｂ＿３（０．１４４、０．３８９）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）、Ｂ＿１（０．２０１、０．３９７）、Ｂ－Ｐ＿１（０．２１９、０．４１３）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　低彩度紫領域は、（ｕ’，ｖ’）の座標点Ｐ－Ｒ＿３（０．３３６、０．４１７）、Ｐ＿３（０．２９１、０．３３６）、Ｂ－Ｐ＿３（０．２３６、０．２９１）、Ｂ－Ｐ＿１（０．２１９、０．４１３）、Ｐ＿１（０．２３７、０．４２８）、Ｐ－Ｒ＿１（０．２５２、０．４５５）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　高彩度赤領域は、（ｕ’，ｖ’）の座標点Ｒ－ＯＲ＿４（０．４１９、０．５２１）、Ｒ＿４（０．４４０、０．５０６）、Ｐ－Ｒ＿４（０．３７９、０．３９８）、Ｐ－Ｒ＿３（０．３３６、０．４１７）、Ｒ＿３（０．３８２、０．４９８）、Ｒ－ＯＲ＿３（０．３６７、０．５０９）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　高彩度橙領域は、（ｕ’，ｖ’）の座標点ＯＲ－Ｙ＿４（０．３０２、０．５４９）、ＯＲ＿４（０．３９８、０．５３７）、Ｒ－ＯＲ＿４（０．４１９、０．５２１）、Ｒ－ＯＲ＿３（０．３６７、０．５０９）、ＯＲ＿３（０．３５１、０．５２１）、ＯＲ－Ｙ＿３（０．２７９、０．５３０）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　高彩度黄領域は、（ｕ’，ｖ’）の座標点Ｙ－Ｇ＿４（０．２０４、０．５５９）、Ｙ＿４（０．２３７、０．５５７）、ＯＲ－Ｙ＿４（０．３０２、０．５４９）、ＯＲ－Ｙ＿３（０．２７９、０．５３０）、Ｙ＿３（０．２３１、０．５３６）、Ｙ－Ｇ＿３（０．２０６、０．５３８）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　高彩度緑領域は、（ｕ’，ｖ’）の座標点Ｇ－ＢＧ＿４（０．０９８、０．４８３）、Ｇ＿４（０．０８５、０．５６８）、Ｙ－Ｇ＿４（０．２０４、０．５５９）、Ｙ－Ｇ＿３（０．２０６、０．５３８）、Ｇ＿３（０．１１６、０．５４４）、Ｇ－ＢＧ＿３（０．１２６、０．４８１）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　高彩度青緑領域は、（ｕ’，ｖ’）の座標点ＢＧ－Ｂ＿４（０．１２２、０．３６１）、ＢＧ＿４（０．１１２、０．３９８）、Ｇ－ＢＧ＿４（０．０９８、０．４８３）、Ｇ－ＢＧ＿３（０．１２６、０．４８１）、ＢＧ＿３（０．１３６、０．４１７）、ＢＧ－Ｂ＿３（０．１４４、０．３８９）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　高彩度青領域は、（ｕ’，ｖ’）の座標点Ｂ－Ｐ＿４（０．２４５、０．２３０）、Ｂ＿４（０．１７３、０．１６９）、ＢＧ－Ｂ＿４（０．１２２、０．３６１）、ＢＧ－Ｂ＿３（０．１４４、０．３８９）、Ｂ＿３（０．１８２、０．２４５）、Ｂ－Ｐ＿３（０．２３６、０．２９１）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　高彩度紫領域は、（ｕ’，ｖ’）の座標点Ｐ－Ｒ＿４（０．３７９、０．３９８）、Ｐ＿４（０．３１７、０．２９１）、Ｂ－Ｐ＿４（０．２４５、０．２３０）、Ｂ－Ｐ＿３（０．２３６、０．２９１）、Ｐ＿３（０．２９１、０．３３６）、Ｐ－Ｒ＿３（０．３３６、０．４１７）の各点を結ぶ閉ループ線によって囲まれる内側領域である。     The control unit is configured to irradiate a first light that irradiates a part of a first region of the radiation angle region and a second light that irradiates a second region of a part of the radiation angle region different from the first region. However, in the CIE 1976 u'v 'chromaticity diagram, the first and second LED light sources are controlled so as to satisfy any one of the following (2A) to (2M) included in the first chromaticity region. The lighting device according to claim 1, wherein
    The condition (2A) is that the first light irradiated to the first region is included in a white region defined by the following, and the second light irradiated to the second region is defined by the following low color Low blue area, Low chroma blue area, Low chroma green area, Low chroma yellow area, Low chroma orange area, Low chroma red area, Low chroma purple area, High chroma blue area, High chroma blue area, It is included in any of the high saturation green area, high saturation yellow area, high saturation orange area, high saturation red area, and high saturation purple area,
    Condition (2B) is that the first light irradiated to the first region is included in the low saturation blue region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue-green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any of the high saturation green area, high saturation yellow area, high saturation orange area, high saturation red area, and high saturation purple area,
    Condition (2C) is that the first light irradiated to the first region is included in a low-saturation blue-green region defined by the following, and the second light irradiated to the second region is defined by the following White area, low saturation blue area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any of the high saturation green area, high saturation yellow area, high saturation orange area, high saturation red area, and high saturation purple area,
    The condition (2D) is that the first light irradiated to the first region is included in the low-saturation green region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any of the high saturation green area, high saturation yellow area, high saturation orange area, high saturation red area, and high saturation purple area,
    Condition (2E) is that the first light irradiated to the first region is included in the low saturation yellow region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue-green area, low saturation green area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any of the high saturation green area, high saturation yellow area, high saturation orange area, high saturation red area, and high saturation purple area,
    Condition (2F) is that the first light irradiated to the first region is included in the low-saturation orange region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation red area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any of the high saturation green area, high saturation yellow area, high saturation orange area, high saturation red area, and high saturation purple area,
    Condition (2G) is that the first light irradiated to the first region is included in the low saturation red region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation purple area, high saturation blue area, high saturation blue green area, It is included in any of the high saturation green area, high saturation yellow area, high saturation orange area, high saturation red area, and high saturation purple area,
    Condition (2H) is that the first light irradiated to the first region is included in the low-saturation purple region defined by the following, and the second light irradiated to the second region is defined by the following: White area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, high saturation blue area, high saturation blue green area, It is included in any of the high saturation green area, high saturation yellow area, high saturation orange area, high saturation red area, and high saturation purple area,
    Condition (2I) is that the first light irradiated to the first region is included in a high saturation blue region defined by the following, and the second light irradiated to the second region is defined by the following white Area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue green area, It is included in any of the high saturation green area, high saturation yellow area, high saturation orange area, high saturation red area, and high saturation purple area,
    Condition (2J) is that the first light irradiated on the first region is included in a high-saturation blue-green region defined by the following, and the second light irradiated on the second region is defined by the following: White area, Low chroma blue area, Low chroma blue area, Low chroma green area, Low chroma yellow area, Low chroma orange area, Low chroma red area, Low chroma purple area, High chroma blue area, It is included in any of the high saturation green area, high saturation yellow area, high saturation orange area, high saturation red area, and high saturation purple area,
    Condition (2K) is that the first light irradiated to the first region is included in a high-saturation green region defined by the following, and the second light irradiated to the second region is defined by the following white Area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation It is included in each of the blue-green region, high saturation yellow region, high saturation orange region, high saturation red region, and high saturation purple region,
    Condition (2L) is that the first light irradiated to the first region is included in a high saturation yellow region defined by the following, and the second light irradiated to the second region is defined by the following white Area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation It is included in each of the blue-green region, high-saturation green region, high-saturation orange region, high-saturation red region, and high-saturation purple region,
    Condition (2M) is that the first light irradiated to the first region is included in a high-saturation orange region defined by the following, and the second light irradiated to the second region is defined by the following white Area, low saturation blue area, low saturation blue green area, low saturation green area, low saturation yellow area, low saturation orange area, low saturation red area, low saturation purple area, high saturation blue area, high saturation It is included in each of the blue-green region, high-saturation green region, high-saturation yellow region, high-saturation red region, and high-saturation purple region,
    White areas are coordinate points R_1 (0.268, 0.482), R-OR_1 (0.262, 0.485), OR_1 (0.257, 0.489), OR of (u ′, v ′). -Y_1 (0.233, 0.492), Y_1 (0.217, 0.494), Y-G_1 (0.209, 0.495), G_1 (0.179, 0.497), G-BG_1 (0.182, 0.476), BG_1 (0.186, 0.455), BG-B_1 (0.188, 0.445), B_1 (0.201, 0.397), BP_1 (0 .219, 0.413), P_1 (0.237, 0.428), PR_1 (0.252, 0.455), and an inner region surrounded by a closed loop line connecting the points,
    The low-saturation red areas are represented by coordinate points R-OR_3 (0.367, 0.509), R_3 (0.382, 0.498), and PR_3 (0.336, 0) of (u ′, v ′). .417), P-R_1 (0.252, 0.455), R_1 (0.268, 0.482), and R-OR_1 (0.262, 0.485) are surrounded by a closed loop line. The inner area,
    The low-saturation orange region includes coordinate points OR-Y_3 (0.279, 0.530), OR_3 (0.351, 0.521), R-OR_3 (0.367, 0) of (u ′, v ′). .509), R-OR_1 (0.262, 0.485), OR_1 (0.257, 0.489), and OR-Y_1 (0.233, 0.492) are surrounded by a closed loop line. The inner area,
    The low saturation yellow area is represented by the coordinate points YG_3 (0.206, 0.538), Y_3 (0.231, 0.536), OR-Y_3 (0.279, 0) of (u ′, v ′). .530), OR-Y_1 (0.233, 0.492), Y_1 (0.217, 0.494), and YG_1 (0.209, 0.495) are surrounded by a closed loop line. The inner area,
    The low-saturation green areas are coordinate points G-BG_3 (0.126, 0.481), G_3 (0.116, 0.544), Y-G_3 (0.206, 0) of (u ′, v ′). .538), YG_1 (0.209, 0.495), G_1 (0.179, 0.497), and G-BG_1 (0.182, 0.476) are surrounded by a closed loop line. The inner area,
    The low-saturation blue-green regions are coordinate points BG-B_3 (0.144, 0.389), BG_3 (0.136, 0.417), G-BG_3 (0.126, 0.481), G-BG_1 (0.182, 0.476), BG_1 (0.186, 0.455), and BG-B_1 (0.188, 0.445). The inner area
    The low-saturation blue region is represented by coordinate points BP_3 (0.236, 0.291), B_3 (0.182, 0.245), BG-B_3 (0.144, 0) of (u ′, v ′). 389), BG-B_1 (0.188, 0.445), B_1 (0.201, 0.397), and BP_1 (0.219, 0.413) are surrounded by a closed loop line. The inner area,
    The low-saturation purple areas are coordinate points PR_3 (0.336, 0.417), P_3 (0.291, 0.336), BP_3 (0.236, 0) of (u ′, v ′). .291), BP_1 (0.219, 0.413), P_1 (0.237, 0.428), and PR_1 (0.252, 0.455) are surrounded by a closed loop line. The inner area,
    The high-saturation red region includes coordinate points R-OR_4 (0.419, 0.521), R_4 (0.440, 0.506), and PR-4 (0.379, 0.398) of (u ′, v ′). ), P—R — 3 (0.336, 0.417), R — 3 (0.382, 0.498), R—OR — 3 (0.367, 0.509) And
    The high-saturation orange areas are represented by coordinate points OR-Y_4 (0.302, 0.549), OR_4 (0.398, 0.537), R-OR_4 (0.419, 0.521) of (u ′, v ′). ), R-OR — 3 (0.367, 0.509), OR — 3 (0.351, 0.521), OR-Y — 3 (0.279, 0.530) And
    The high saturation yellow area is represented by the coordinate points YG_4 (0.204, 0.559), Y_4 (0.237, 0.557), OR-Y_4 (0.302, 0.549) of (u ′, v ′). ), OR-Y — 3 (0.279, 0.530), Y — 3 (0.231, 0.536), YG — 3 (0.206, 0.538) And
    The high-saturation green region includes coordinate points G-BG_4 (0.098, 0.483), G_4 (0.085, 0.568), Y-G_4 (0.204, 0.559) of (u ′, v ′). ), YG_3 (0.206, 0.538), G_3 (0.116, 0.544), G-BG_3 (0.126, 0.481) and the inner region surrounded by the closed loop line connecting the points And
    The high-saturation blue-green region includes coordinate points BG-B_4 (0.122, 0.361), BG_4 (0.112, 0.398), G-BG_4 (0.098, 0. 483), G-BG_3 (0.126, 0.481), BG_3 (0.136, 0.417), and BG-B_3 (0.144, 0.389). Area,
    The high-saturation blue areas are coordinate points BP_4 (0.245, 0.230), B_4 (0.173, 0.169), BG-B_4 (0.122, 0.361) of (u ′, v ′). ), BG-B_3 (0.144, 0.389), B_3 (0.182, 0.245), BP_3 (0.236, 0.291), the inner region surrounded by the closed loop line connecting the points And
    The high-saturation purple region is represented by coordinate points PR_4 (0.379, 0.398), P_4 (0.317, 0.291), and BP_4 (0.245, 0.230) of (u ′, v ′). ), BP_3 (0.236, 0.291), P_3 (0.291, 0.336), PR_3 (0.336, 0.417), and the inner region surrounded by the closed loop line connecting the points It is.
  3. 　前記制御部は、前記放射角度領域の一部の第１領域に照射される第１光、および、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射される第２光が、ＣＩＥ１９７６ｕ’ｖ’色度図において、前記第１色度領域に含まれる下記（３Ａ）ないし（３Ｍ）のいずれかの条件を満たすように、前記第１および第２ＬＥＤ光源を制御すること
    　を特徴とする請求項２に記載の照明装置。
    　条件（３Ａ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される白色領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、
    　条件（３Ｂ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青緑領域、低彩度橙領域、低彩度赤領域、高彩度青領域、高彩度緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、
    　条件（３Ｃ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域および高彩度橙領域の各領域のいずれかに含まれることであり、
    　条件（３Ｄ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、高彩度青領域、高彩度青緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、
    　条件（３Ｅ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度橙領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度橙領域および高彩度紫領域の各領域のいずれかに含まれることであり、
    　条件（３Ｆ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度橙領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度青緑領域および高彩度緑領域の各領域のいずれかに含まれることであり、
    　条件（３Ｇ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度赤領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度黄領域、低彩度橙領域、高彩度青緑領域、高彩度緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、
    　条件（３Ｈ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度紫領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域、低彩度青緑領域、低彩度赤領域および高彩度黄領域の各領域のいずれかに含まれることであり、
    　条件（３Ｉ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域および高彩度緑領域の各領域のいずれかに含まれることであり、
    　条件（３Ｊ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青領域、高彩度緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、
    　条件（３Ｋ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域および高彩度青領域の各領域のいずれかに含まれることであり、
    　条件（３Ｌ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域、低彩度青緑領域、高彩度青領域および高彩度橙領域の各領域のいずれかに含まれることであり、
    　条件（３Ｍ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度橙領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域に含まれることである。     The control unit is configured to irradiate a first light that irradiates a part of a first region of the radiation angle region, and a second light that irradiates a second region of a part of the radiation angle region different from the first region. However, in the CIE 1976 u′v ′ chromaticity diagram, the first and second LED light sources are controlled so as to satisfy any one of the following (3A) to (3M) included in the first chromaticity region. The lighting device according to claim 2, wherein
    The condition (3A) is that the first light irradiated to a part of the first region of the radiation angle region is included in a white region defined by the following, and is one of the radiation angle regions different from the first region. The second light emitted to the second region of the part is defined by the following: low saturation blue region, low saturation blue-green region, low saturation green region, low saturation red region, low saturation purple region, high saturation It is included in each of the blue region, high saturation blue-green region, high saturation green region, and high saturation yellow region,
    Condition (3B) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation blue region defined by the following, and the radiation angle different from the first region The second light irradiated to the second region of a part of the region is defined by the following low saturation blue-green region, low saturation orange region, low saturation red region, high saturation blue region, high saturation green region and high saturation yellow Is included in any of the regions,
    Condition (3C) is that the first light irradiated to a first region of a part of the radiation angle region is included in a low-saturation blue-green region defined by the following, and is different from the first region. The second light emitted to the second area that is a part of the angle area is defined by the following: white area, low saturation blue area, low saturation green area, low saturation yellow area, low saturation orange area, low It is included in any one of the saturation red region, low saturation purple region, high saturation blue region, high saturation blue-green region, high saturation green region, high saturation yellow region and high saturation orange region,
    Condition (3D) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation green region defined by the following, and the radiation angle is different from the first region The second light emitted to the second region of a part of the region is defined as follows: white region, low saturation blue region, low saturation blue-green region, low saturation yellow region, low saturation orange region, low It is included in any one of the saturation red area, the high saturation blue area, the high saturation blue-green area, and the high saturation yellow area.
    Condition (3E) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation yellow region defined by the following, and the radiation angle is different from the first region The second light emitted to the second region that is a part of the region is defined as follows: white region, low saturation blue region, low saturation blue-green region, low saturation green region, low saturation orange region, low It is included in each of the saturation violet region, high saturation blue region, high saturation blue-green region, high saturation green region, high saturation orange region, and high saturation purple region.
    Condition (3F) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation orange region defined by the following, and the radiation angle is different from the first region The second light emitted to the second region that is a part of the region is defined as follows: white region, low saturation blue region, low saturation blue-green region, low saturation red region, low saturation purple region, high saturation It is included in each of the blue area, high saturation blue-green area, and high saturation green area,
    Condition (3G) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation red region defined by the following, and the radiation angle different from the first region The second light emitted to the second region that is part of the region is defined by the following: a white region, a low saturation blue region, a low saturation blue-green region, a low saturation yellow region, a low saturation orange region, and a high saturation Is included in any of the blue-green region, the high-saturation green region, and the high-saturation yellow region,
    Condition (3H) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation purple region defined by the following, and the radiation angle is different from the first region The second light emitted to a second region that is a part of the region is one of the low saturation blue region, the low saturation blue-green region, the low saturation red region, and the high saturation yellow region defined by the following: Is to be included
    Condition (3I) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high saturation blue region defined by the following and the radiation angle region is different from the first region. The second light emitted to some of the second regions is included in any of the white region and the high saturation green region defined by the following:
    Condition (3J) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation blue-green region defined by the following, and is different from the first region in the radiation angle region The second light irradiated to a part of the second region is defined as follows: white region, low chroma blue region, low chroma green region, low chroma yellow region, low chroma orange region, low chroma It is included in each of the red region, low saturation purple region, high saturation blue region, high saturation green region and high saturation yellow region,
    The condition (3K) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation green region defined by the following, and the radiation angle region is different from the first region. The second light emitted to some of the second regions is included in any of the low saturation blue region and the high saturation blue region defined by the following:
    Condition (3L) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation yellow region defined by the following, and the radiation angle region is different from the first region. The second light emitted to some of the second regions is included in any of the low saturation blue region, the low saturation blue-green region, the high saturation blue region, and the high saturation orange region defined by the following: Yes,
    Condition (3M) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation orange region defined by the following, and the radiation angle region is different from the first region. The second light irradiated to a part of the second region is included in the low saturation blue region defined by the following.
  4. 　前記制御部は、前記放射角度領域の一部の第１領域に照射される第１光、および、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射される第２光が、ＣＩＥ１９７６ｕ’ｖ’色度図において、前記第１色度領域に含まれる下記（４Ａ）ないし（４Ｊ）のいずれかの条件を満たすように、前記第１および第２ＬＥＤ光源を制御すること
    　を特徴とする請求項２に記載の照明装置。
    　条件（４Ａ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された白色領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青領域、高彩度青領域、高彩度青緑領域、高彩度緑領域および高彩度紫領域の各領域のいずれかに含まれることであり、
    　条件（４Ｂ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青緑領域、高彩度青領域、高彩度青緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、
    　条件（４Ｃ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、低彩度緑領域、低彩度黄領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、
    　条件（４Ｄ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、高彩度青領域、高彩度青緑領域および高彩度紫領域の各領域のいずれかに含まれることであり、
    　条件（４Ｅ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度紫領域、高彩度青領域、高彩度青緑領域および高彩度緑領域の各領域のいずれかに含まれることであり、
    　条件（４Ｆ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度紫領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青領域、および低彩度青緑領域の各領域のいずれかに含まれることであり、
    　条件（４Ｇ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度緑領域および高彩度緑領域の各領域のいずれかに含まれることであり、
    　条件（４Ｈ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度緑領域、高彩度橙領域および高彩度赤領域の各領域のいずれかに含まれることであり、
    　条件（４Ｉ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青領域、高彩度青領域、高彩度青緑領域および高彩度紫領域の各領域のいずれかに含まれることであり、
    　条件（４Ｊ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、高彩度青領域、高彩度青緑領域および高彩度橙領域の各領域のいずれかに含まれることである。     The control unit is configured to irradiate a first light that irradiates a part of a first region of the radiation angle region, and a second light that irradiates a second region of a part of the radiation angle region different from the first region. In the CIE 1976 u′v ′ chromaticity diagram, the first and second LED light sources are controlled so as to satisfy any of the following conditions (4A) to (4J) included in the first chromaticity region: The lighting device according to claim 2, wherein
    The condition (4A) is that a part of the radiation angle region different from the first region is included in the defined white region where the first light irradiated to a part of the first region of the radiation angle region is included. The second light emitted to the second region is included in any one of the defined low-saturation blue region, high-saturation blue region, high-saturation blue-green region, high-saturation green region, and high-saturation purple region. ,
    Condition (4B) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low saturation blue region, and is different from the first region in the radiation angle region The second light emitted to a part of the second region is included in any one of the defined low-saturation blue-green region, high-saturation blue region, high-saturation blue-green region, and high-saturation yellow region. ,
    Condition (4C) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation blue-green region and is different from the first region in the radiation angle The second light emitted to the second region that is a part of the region is defined as the white region, the low saturation blue region, the low saturation green region, the low saturation yellow region, the low saturation purple region, and the high saturation blue region. , The high saturation blue / green region, the high saturation green region and the high saturation yellow region.
    The condition (4D) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation green region and is different from the first region in the radiation angle region The second light emitted to a part of the second region is included in any of the defined white region, low saturation blue region, high saturation blue region, high saturation blue-green region, and high saturation purple region. And
    The condition (4E) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low saturation yellow region, and the radiation angle region is different from the first region. The second light irradiated to a part of the second region is defined as the low saturation blue region, the low saturation blue-green region, the low saturation green region, the low saturation purple region, the high saturation blue region, and the high saturation blue. Included in one of the green and high-saturation green areas,
    Condition (4F) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation purple region, and is different from the first region in the radiation angle region The second light emitted to a part of the second region is included in any one of the defined low saturation blue region and low saturation blue-green region,
    Condition (4G) is that the first light applied to a part of the first region of the radiation angle region is included in the defined high saturation blue region and is different from the first region in the radiation angle region. The second light emitted to the second region of the portion is included in any one of the defined low-saturation green region and high-saturation green region,
    Condition (4H) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high-saturation blue-green region, and the radiation angle region is different from the first region. The second light emitted to some of the second areas is the defined white area, low chroma blue area, low chroma blue green area, low chroma green area, low chroma yellow area, and low chroma orange. Area, low saturation red area, low saturation purple area, high saturation green area, high saturation orange area, and high saturation red area.
    Condition (4I) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high-saturation green region, and one of the radiation angle regions different from the first region. The second light emitted to the second region of the part is included in any one of the defined low saturation blue region, high saturation blue region, high saturation blue-green region, and high saturation purple region,
    Condition (4J) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high saturation yellow region, and one of the radiation angle regions different from the first region. The second light emitted to the second region of the section is defined as the white region, the low saturation blue region, the low saturation blue-green region, the low saturation green region, the high saturation blue region, the high saturation blue-green region, and the high saturation orange. It is included in any one of the areas.
  5. 　前記制御部は、前記放射角度領域の一部の第１領域に照射される第１光、および、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射される第２光が、ＣＩＥ１９７６ｕ’ｖ’色度図において、前記第１色度領域に含まれる下記（５Ａ）ないし（５Ｌ）のいずれかの条件を満たすように、前記第１および第２ＬＥＤ光源を制御すること
    　を特徴とする請求項２に記載の照明装置。
    　条件（５Ａ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された白色領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、高彩度青領域、高彩度青緑領域、高彩度緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、
    　条件（５Ｂ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、高彩度青領域、高彩度青緑領域、高彩度緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、
    　条件（５Ｃ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、低彩度緑領域、低彩度黄領域、低彩度紫領域、高彩度青領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域および高彩度紫領域の各領域のいずれかに含まれることであり、
    　条件（５Ｄ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、高彩度青領域および高彩度青緑領域の各領域のいずれかに含まれることであり、
    　条件（５Ｅ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、低彩度青緑領域、低彩度赤領域、高彩度青領域、高彩度青緑領域、高彩度緑領域および高彩度赤領域の各領域のいずれかに含まれることであり、
    　条件（５Ｆ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度橙領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青領域、高彩度青領域、高彩度青緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、
    　条件（５Ｇ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度赤領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域および高彩度黄領域の各領域のいずれかに含まれることであり、
    　条件（５Ｈ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された低彩度紫領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された高彩度青領域に含まれることであり、
    　条件（５Ｉ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度緑領域、低彩度黄領域、低彩度橙領域および高彩度黄領域の各領域のいずれかに含まれることであり、
    　条件（５Ｊ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された白色領域、低彩度青領域、低彩度緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度紫領域、高彩度青領域および高彩度黄領域の各領域のいずれかに含まれることであり、
    　条件（５Ｋ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された高彩度青領域に含まれることであり、
    　条件（５Ｌ）は、前記放射角度領域の一部の第１領域に照射された第１光が前記定義された高彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が前記定義された低彩度青領域、高彩度青領域および高彩度青緑領域の各領域のいずれかに含まれることである。     The control unit is configured to irradiate a first light that irradiates a part of a first region of the radiation angle region, and a second light that irradiates a second region of a part of the radiation angle region different from the first region. In the CIE 1976 u′v ′ chromaticity diagram, the first and second LED light sources are controlled so as to satisfy any of the following conditions (5A) to (5L) included in the first chromaticity region: The lighting device according to claim 2, wherein
    The condition (5A) is that a part of the radiation angle region that is different from the first region in which the first light irradiated to a part of the first region of the radiation angle region is included in the defined white region. The second light emitted to the second region of the low-saturation blue region, low-saturation blue-green region, low-saturation green region, low-saturation yellow region, high-saturation blue region, high-saturation blue-green region, It is included in each of the high saturation green region and the high saturation yellow region,
    The condition (5B) is that the first light emitted to a part of the first region of the radiation angle region is included in the defined low-saturation blue region and is different from the first region in the radiation angle region The second light irradiated to a part of the second region is defined as the white region, the low saturation blue-green region, the low saturation green region, the low saturation yellow region, the low saturation orange region, and the low saturation. It is included in any of the red region, high saturation blue region, high saturation blue-green region, high saturation green region and high saturation yellow region,
    Condition (5C) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low saturation blue-green region and is different from the first region in the radiation angle The second light emitted to the second region that is a part of the region is defined as the white region, the low saturation blue region, the low saturation green region, the low saturation yellow region, the low saturation purple region, and the high saturation blue region. , A high saturation blue-green region, a high saturation green region, a high saturation yellow region, and a high saturation purple region,
    The condition (5D) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation green region and is different from the first region in the radiation angle region The second light irradiated to a part of the second region is included in any of the defined white region, low saturation blue region, high saturation blue region and high saturation blue-green region,
    Condition (5E) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low saturation yellow region, and is different from the first region in the radiation angle region The second light irradiated to a part of the second region is defined as a white region, a low saturation blue region, a low saturation blue-green region, a low saturation red region, a high saturation blue region, a high saturation blue-green region, Included in either the high saturation green region or the high saturation red region,
    The condition (5F) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined low-saturation orange region and is different from the first region in the radiation angle region The second light irradiated to a part of the second region is included in any of the defined low saturation blue region, high saturation blue region, high saturation blue-green region and high saturation yellow region,
    The condition (5G) is that the first light irradiated on a part of the first region of the radiation angle region is included in the defined low saturation red region and is different from the first region in the radiation angle region The second light emitted to a part of the second region is included in any one of the defined white region and high saturation yellow region,
    The condition (5H) is that the first light irradiated on a part of the first region of the radiation angle region is included in the defined low-saturation purple region and is different from the first region in the radiation angle region The second light irradiated to a part of the second region is included in the defined high saturation blue region,
    Condition (5I) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high-saturation blue region, and one of the radiation angle regions different from the first region. The second light emitted to the second region of the portion is included in any of the defined white region, low saturation green region, low saturation yellow region, low saturation orange region, and high saturation yellow region That is,
    Condition (5J) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high-saturation blue-green region and the radiation angle region is different from the first region. The second light emitted to some of the second areas is the defined white area, low saturation blue area, low saturation green area, low saturation green area, low saturation yellow area, and low saturation orange area. , A low saturation purple region, a high saturation blue region, and a high saturation yellow region.
    The condition (5K) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high-saturation green region, and one of the radiation angle regions different from the first region. The second light emitted to the second region of the part is included in the defined high saturation blue region,
    The condition (5L) is that the first light irradiated to a part of the first region of the radiation angle region is included in the defined high saturation yellow region, and is one of the radiation angle regions different from the first region. 2nd light irradiated to the 2nd area | region of a part is contained in either of each area | region of the said low chroma blue area | region, a high chroma blue area | region, and a high chroma blue green area | region.
  6. 　前記制御部は、前記放射角度領域の一部の第１領域に照射される第１光、および、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射される第２光が、ＣＩＥ１９７６ｕ’ｖ’色度図において、前記第１色度領域に含まれる下記（６Ａ）ないし（６Ｎ）のいずれかの条件を満たすように、前記第１および第２ＬＥＤ光源を制御すること
    　を特徴とする請求項１に記載の照明装置。
    　条件（６Ａ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される白色領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、低彩度紫領域、高彩度青緑領域および高彩度黄領域の各領域のいずれかに含まれることであり、
    　条件（６Ｂ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度赤領域、低彩度紫領域、高彩度青緑領域、高彩度緑領域、高彩度黄領域、高彩度橙領域および高彩度赤領域の各領域のいずれかに含まれることであり、
    　条件（６Ｃ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度黄領域、低彩度橙領域、低彩度紫領域、高彩度橙領域、高彩度赤領域および高彩度紫領域の各領域のいずれかに含まれることであり、
    　条件（６Ｄ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青緑領域、低彩度橙領域、高彩度青緑領域および高彩度赤領域の各領域のいずれかに含まれることであり、
    　条件（６Ｅ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度緑領域、低彩度橙領域、低彩度赤領域、高彩度青領域、高彩度黄領域および高彩度橙領域の各領域のいずれかに含まれることであり、
    　条件（６Ｆ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度橙領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度赤領域、低彩度紫領域、高彩度青領域および高彩度黄領域の各領域のいずれかに含まれることであり、
    　条件（６Ｇ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度赤領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度青領域、低彩度青緑領域、低彩度緑領域、低彩度黄領域、低彩度橙領域および高彩度青緑領域の各領域のいずれかに含まれることであり、
    　条件（６Ｈ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度紫領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青緑領域、低彩度黄領域、低彩度橙領域、低彩度赤領域、高彩度青領域、高彩度黄領域および高彩度赤領域の各領域のいずれかに含まれることであり、
    　条件（６Ｉ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度青領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度緑領域、低彩度橙領域および高彩度橙領域の各領域のいずれかに含まれることであり、
    　条件（６Ｊ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度緑域に含まれることであり、
    　条件（６Ｋ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される高彩度赤領域に含まれることであり、
    　条件（６Ｌ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される白色領域、低彩度紫領域および高彩度橙領域の各領域のいずれかに含まれることであり、
    　条件（６Ｍ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度橙領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域、低彩度青緑領域、低彩度黄領域および高彩度青領域の各領域のいずれかに含まれることであり、
    　条件（６Ｎ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度紫領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度緑領域に含まれることであり、
    　白色領域は、（ｕ’，ｖ’）の座標点Ｒ＿１（０．２６８、０．４８２）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）、ＯＲ＿１（０．２５７、０．４８９）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）、Ｙ＿１（０．２１７、０．４９４）、Ｙ－Ｇ＿１（０．２０９、０．４９５）、Ｇ＿１（０．１７９、０．４９７）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）、ＢＧ＿１（０．１８６、０．４５５）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）、Ｂ＿１（０．２０１、０．３９７）、Ｂ－Ｐ＿１（０．２１９、０．４１３）、Ｐ＿１（０．２３７、０．４２８）、Ｐ－Ｒ＿１（０．２５２、０．４５５）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　低彩度赤領域は、（ｕ’，ｖ’）の座標点Ｒ－ＯＲ＿３（０．３６７、０．５０９）、Ｒ＿３（０．３８２、０．４９８）、Ｐ－Ｒ＿３（０．３３６、０．４１７）、Ｐ－Ｒ＿１（０．２５２、０．４５５）、Ｒ＿１（０．２６８、０．４８２）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　低彩度橙領域は、（ｕ’，ｖ’）の座標点ＯＲ－Ｙ＿３（０．２７９、０．５３０）、ＯＲ＿３（０．３５１、０．５２１）、Ｒ－ＯＲ＿３（０．３６７、０．５０９）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）、ＯＲ＿１（０．２５７、０．４８９）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　低彩度黄領域は、（ｕ’，ｖ’）の座標点Ｙ－Ｇ＿３（０．２０６、０．５３８）、Ｙ＿３（０．２３１、０．５３６）、ＯＲ－Ｙ＿３（０．２７９、０．５３０）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）、Ｙ＿１（０．２１７、０．４９４）、Ｙ－Ｇ＿１（０．２０９、０．４９５）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　低彩度緑領域は、（ｕ’，ｖ’）の座標点Ｇ－ＢＧ＿３（０．１２６、０．４８１）、Ｇ＿３（０．１１６、０．５４４）、Ｙ－Ｇ＿３（０．２０６、０．５３８）、Ｙ－Ｇ＿１（０．２０９、０．４９５）、Ｇ＿１（０．１７９、０．４９７）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　低彩度青緑領域は、（ｕ’，ｖ’）の座標点ＢＧ－Ｂ＿３（０．１４４、０．３８９）、ＢＧ＿３（０．１３６、０．４１７）、Ｇ－ＢＧ＿３（０．１２６、０．４８１）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）、ＢＧ＿１（０．１８６、０．４５５）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　低彩度青領域は、（ｕ’，ｖ’）の座標点Ｂ－Ｐ＿３（０．２３６、０．２９１）、Ｂ＿３（０．１８２、０．２４５）、ＢＧ－Ｂ＿３（０．１４４、０．３８９）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）、Ｂ＿１（０．２０１、０．３９７）、Ｂ－Ｐ＿１（０．２１９、０．４１３）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　低彩度紫領域は、（ｕ’，ｖ’）の座標点Ｐ－Ｒ＿３（０．３３６、０．４１７）、Ｐ＿３（０．２９１、０．３３６）、Ｂ－Ｐ＿３（０．２３６、０．２９１）、Ｂ－Ｐ＿１（０．２１９、０．４１３）、Ｐ＿１（０．２３７、０．４２８）、Ｐ－Ｒ＿１（０．２５２、０．４５５）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　高彩度赤領域は、（ｕ’，ｖ’）の座標点Ｒ－ＯＲ＿４（０．４１９、０．５２１）、Ｒ＿４（０．４４０、０．５０６）、Ｐ－Ｒ＿４（０．３７９、０．３９８）、Ｐ－Ｒ＿３（０．３３６、０．４１７）、Ｒ＿３（０．３８２、０．４９８）、Ｒ－ＯＲ＿３（０．３６７、０．５０９）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　高彩度橙領域は、（ｕ’，ｖ’）の座標点ＯＲ－Ｙ＿４（０．３０２、０．５４９）、ＯＲ＿４（０．３９８、０．５３７）、Ｒ－ＯＲ＿４（０．４１９、０．５２１）、Ｒ－ＯＲ＿３（０．３６７、０．５０９）、ＯＲ＿３（０．３５１、０．５２１）、ＯＲ－Ｙ＿３（０．２７９、０．５３０）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　高彩度黄領域は、（ｕ’，ｖ’）の座標点Ｙ－Ｇ＿４（０．２０４、０．５５９）、Ｙ＿４（０．２３７、０．５５７）、ＯＲ－Ｙ＿４（０．３０２、０．５４９）、ＯＲ－Ｙ＿３（０．２７９、０．５３０）、Ｙ＿３（０．２３１、０．５３６）、Ｙ－Ｇ＿３（０．２０６、０．５３８）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　高彩度緑領域は、（ｕ’，ｖ’）の座標点Ｇ－ＢＧ＿４（０．０９８、０．４８３）、Ｇ＿４（０．０８５、０．５６８）、Ｙ－Ｇ＿４（０．２０４、０．５５９）、Ｙ－Ｇ＿３（０．２０６、０．５３８）、Ｇ＿３（０．１１６、０．５４４）、Ｇ－ＢＧ＿３（０．１２６、０．４８１）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　高彩度青緑領域は、（ｕ’，ｖ’）の座標点ＢＧ－Ｂ＿４（０．１２２、０．３６１）、ＢＧ＿４（０．１１２、０．３９８）、Ｇ－ＢＧ＿４（０．０９８、０．４８３）、Ｇ－ＢＧ＿３（０．１２６、０．４８１）、ＢＧ＿３（０．１３６、０．４１７）、ＢＧ－Ｂ＿３（０．１４４、０．３８９）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　高彩度青領域は、（ｕ’，ｖ’）の座標点Ｂ－Ｐ＿４（０．２４５、０．２３０）、Ｂ＿４（０．１７３、０．１６９）、ＢＧ－Ｂ＿４（０．１２２、０．３６１）、ＢＧ－Ｂ＿３（０．１４４、０．３８９）、Ｂ＿３（０．１８２、０．２４５）、Ｂ－Ｐ＿３（０．２３６、０．２９１）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　高彩度紫領域は、（ｕ’，ｖ’）の座標点Ｐ－Ｒ＿４（０．３７９、０．３９８）、Ｐ＿４（０．３１７、０．２９１）、Ｂ－Ｐ＿４（０．２４５、０．２３０）、Ｂ－Ｐ＿３（０．２３６、０．２９１）、Ｐ＿３（０．２９１、０．３３６）、Ｐ－Ｒ＿３（０．３３６、０．４１７）の各点を結ぶ閉ループ線によって囲まれる内側領域である。     The control unit is configured to irradiate a first light that irradiates a part of a first region of the radiation angle region, and a second light that irradiates a second region of a part of the radiation angle region different from the first region. In the CIE 1976 u′v ′ chromaticity diagram, the first and second LED light sources are controlled so as to satisfy any of the following conditions (6A) to (6N) included in the first chromaticity region: The lighting device according to claim 1, wherein
    The condition (6A) is that the first light irradiated to a part of the first region of the radiation angle region is included in a white region defined by the following, and is one of the radiation angle regions different from the first region. The second light emitted to the second region of the area is defined by the following: low saturation green region, low saturation yellow region, low saturation orange region, low saturation red region, low saturation purple region, high saturation blue It is included in each of the green region and the high saturation yellow region,
    Condition (6B) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation blue region defined by the following and the radiation angle is different from the first region The second light emitted to the second region that is part of the region is defined by the following: a white region, a low saturation blue-green region, a low saturation green region, a low saturation yellow region, a low saturation red region, a low It is included in each of the saturation purple region, high saturation blue-green region, high saturation green region, high saturation yellow region, high saturation orange region and high saturation red region,
    Condition (6C) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation blue-green region defined by the following and is different from the first region. The second light applied to the second region of the angular region is defined by the following low saturation yellow region, low saturation orange region, low saturation purple region, high saturation orange region, high saturation red region, and high saturation purple. Is included in any of the regions,
    Condition (6D) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation green region defined by the following, and the radiation angle is different from the first region The second light irradiated to a part of the second region is included in any of the low saturation blue-green region, the low saturation orange region, the high saturation blue-green region, and the high saturation red region defined by the following: And
    Condition (6E) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation yellow region defined by the following, and the radiation angle is different from the first region The low light green region, the low chroma orange region, the low chroma red region, the high chroma blue region, the high chroma yellow region, and the high chroma orange region defined by Are included in any of the areas
    Condition (6F) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation orange region defined by the following, and the radiation angle is different from the first region The low light blue area, the low chroma blue-green area, the low chroma green area, the low chroma yellow area, and the low chroma red defined by Area, low-saturation purple area, high-saturation blue area, and high-saturation yellow area.
    Condition (6G) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation red region defined by the following, and the radiation angle is different from the first region The second light emitted to the second region that is a part of the region is defined as follows: white region, low saturation blue region, low saturation blue-green region, low saturation green region, low saturation yellow region, low It is included in each of the saturation orange region and the high saturation blue-green region,
    Condition (6H) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation purple region defined by the following, and the radiation angle is different from the first region The second light emitted to the second region of a part of the region is defined by the low saturation blue-green region, the low saturation yellow region, the low saturation orange region, the low saturation red region, the high saturation blue region, It is included in each of the high saturation yellow region and the high saturation red region,
    Condition (6I) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation blue region defined by the following, and the radiation angle region different from the first region is The second light emitted to some of the second regions is included in any of the white region, the low saturation green region, the low saturation orange region, and the high saturation orange region defined by the following:
    Condition (6J) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high saturation blue-green region defined by the following, and the radiation angle region different from the first region The second light emitted to a part of the second region is included in a low-saturation green region defined by:
    The condition (6K) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation green region defined by the following, and the radiation angle region is different from the first region. The second light emitted to some second region is included in the high saturation red region defined by:
    The condition (6L) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation yellow region defined by the following, and the radiation angle region different from the first region is The second light emitted to some of the second regions is included in any of the white region, the low saturation purple region, and the high saturation orange region defined by the following:
    The condition (6M) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation orange region defined by the following, and the radiation angle region is different from the first region. The second light emitted to some of the second areas is included in any one of the low saturation blue area, the low saturation blue green area, the low saturation yellow area, and the high saturation blue area defined by the following: That is,
    Condition (6N) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation purple region defined by the following, and the radiation angle region is different from the first region. The second light emitted to some of the second regions is included in a low-saturation green region defined by:
    White areas are coordinate points R_1 (0.268, 0.482), R-OR_1 (0.262, 0.485), OR_1 (0.257, 0.489), OR of (u ′, v ′). -Y_1 (0.233, 0.492), Y_1 (0.217, 0.494), Y-G_1 (0.209, 0.495), G_1 (0.179, 0.497), G-BG_1 (0.182, 0.476), BG_1 (0.186, 0.455), BG-B_1 (0.188, 0.445), B_1 (0.201, 0.397), BP_1 (0 .219, 0.413), P_1 (0.237, 0.428), PR_1 (0.252, 0.455), and an inner region surrounded by a closed loop line connecting the points,
    The low-saturation red areas are represented by coordinate points R-OR_3 (0.367, 0.509), R_3 (0.382, 0.498), and PR_3 (0.336, 0) of (u ′, v ′). .417), P-R_1 (0.252, 0.455), R_1 (0.268, 0.482), and R-OR_1 (0.262, 0.485) are surrounded by a closed loop line. The inner area,
    The low-saturation orange region includes coordinate points OR-Y_3 (0.279, 0.530), OR_3 (0.351, 0.521), R-OR_3 (0.367, 0) of (u ′, v ′). .509), R-OR_1 (0.262, 0.485), OR_1 (0.257, 0.489), and OR-Y_1 (0.233, 0.492) are surrounded by a closed loop line. The inner area,
    The low saturation yellow area is represented by the coordinate points YG_3 (0.206, 0.538), Y_3 (0.231, 0.536), OR-Y_3 (0.279, 0) of (u ′, v ′). .530), OR-Y_1 (0.233, 0.492), Y_1 (0.217, 0.494), and YG_1 (0.209, 0.495) are surrounded by a closed loop line. The inner area,
    The low-saturation green areas are coordinate points G-BG_3 (0.126, 0.481), G_3 (0.116, 0.544), Y-G_3 (0.206, 0) of (u ′, v ′). .538), YG_1 (0.209, 0.495), G_1 (0.179, 0.497), and G-BG_1 (0.182, 0.476) are surrounded by a closed loop line. The inner area,
    The low-saturation blue-green regions are coordinate points BG-B_3 (0.144, 0.389), BG_3 (0.136, 0.417), G-BG_3 (0.126, 0.481), G-BG_1 (0.182, 0.476), BG_1 (0.186, 0.455), and BG-B_1 (0.188, 0.445). The inner area
    The low-saturation blue region is represented by coordinate points BP_3 (0.236, 0.291), B_3 (0.182, 0.245), BG-B_3 (0.144, 0) of (u ′, v ′). 389), BG-B_1 (0.188, 0.445), B_1 (0.201, 0.397), and BP_1 (0.219, 0.413) are surrounded by a closed loop line. The inner area,
    The low-saturation purple areas are coordinate points PR_3 (0.336, 0.417), P_3 (0.291, 0.336), BP_3 (0.236, 0) of (u ′, v ′). .291), BP_1 (0.219, 0.413), P_1 (0.237, 0.428), and PR_1 (0.252, 0.455) are surrounded by a closed loop line. The inner area,
    The high-saturation red region includes coordinate points R-OR_4 (0.419, 0.521), R_4 (0.440, 0.506), and PR-4 (0.379, 0.398) of (u ′, v ′). ), P—R — 3 (0.336, 0.417), R — 3 (0.382, 0.498), R—OR — 3 (0.367, 0.509) And
    The high-saturation orange areas are represented by coordinate points OR-Y_4 (0.302, 0.549), OR_4 (0.398, 0.537), R-OR_4 (0.419, 0.521) of (u ′, v ′). ), R-OR — 3 (0.367, 0.509), OR — 3 (0.351, 0.521), OR-Y — 3 (0.279, 0.530) And
    The high saturation yellow area is represented by the coordinate points YG_4 (0.204, 0.559), Y_4 (0.237, 0.557), OR-Y_4 (0.302, 0.549) of (u ′, v ′). ), OR-Y — 3 (0.279, 0.530), Y — 3 (0.231, 0.536), YG — 3 (0.206, 0.538) And
    The high-saturation green region includes coordinate points G-BG_4 (0.098, 0.483), G_4 (0.085, 0.568), Y-G_4 (0.204, 0.559) of (u ′, v ′). ), YG_3 (0.206, 0.538), G_3 (0.116, 0.544), G-BG_3 (0.126, 0.481) and the inner region surrounded by the closed loop line connecting the points And
    The high-saturation blue-green region includes coordinate points BG-B_4 (0.122, 0.361), BG_4 (0.112, 0.398), G-BG_4 (0.098, 0. 483), G-BG_3 (0.126, 0.481), BG_3 (0.136, 0.417), and BG-B_3 (0.144, 0.389). Area,
    The high-saturation blue areas are coordinate points BP_4 (0.245, 0.230), B_4 (0.173, 0.169), BG-B_4 (0.122, 0.361) of (u ′, v ′). ), BG-B_3 (0.144, 0.389), B_3 (0.182, 0.245), BP_3 (0.236, 0.291), the inner region surrounded by the closed loop line connecting the points And
    The high-saturation purple region is represented by coordinate points PR_4 (0.379, 0.398), P_4 (0.317, 0.291), and BP_4 (0.245, 0.230) of (u ′, v ′). ), BP_3 (0.236, 0.291), P_3 (0.291, 0.336), PR_3 (0.336, 0.417), and the inner region surrounded by the closed loop line connecting the points It is.
  7. 　前記制御部は、前記放射角度領域の一部の第１領域に照射される第１光、および、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射される第２光が、ＣＩＥ１９７６ｕ’ｖ’色度図において、前記第１色度領域に含まれる下記（７Ａ）ないし（７Ｉ）のいずれかの条件を満たすように、前記第１および第２ＬＥＤ光源を制御すること
    　を特徴とする請求項１に記載の照明装置。
    　条件（７Ａ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される白色領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される高彩度紫領域に含まれることであり、
    　条件（７Ｂ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度青緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される高彩度黄領域に含まれることであり、
    　条件（７Ｃ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度赤領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される高彩度橙領域に含まれることであり、
    　条件（７Ｄ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される低彩度紫領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される高彩度紫領域に含まれることであり、
    　条件（７Ｅ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度緑領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度黄領域、低彩度赤領域、高彩度黄領域および高彩度橙領域の各領域のいずれかに含まれることであり、
    　条件（７Ｆ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度黄領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される高彩度緑領域および高彩度赤領域の各領域のいずれかに含まれることであり、
    　条件（７Ｇ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度橙領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度紫領域、高彩度赤および高彩度紫領域の各領域のいずれかに含まれることであり、
    　条件（７Ｈ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度赤領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度橙領域、高彩度青領域、高彩度緑領域、高彩度黄領域および高彩度橙領域の各領域のいずれかに含まれることであり、
    　条件（７Ｉ）は、前記放射角度領域の一部の第１領域に照射された第１光が下記によって定義される高彩度紫領域に含まれ、かつ、前記第１領域と異なる前記放射角度領域の一部の第２領域に照射された第２光が下記によって定義される低彩度青領域、低彩度青緑領域、低彩度黄領域、低彩度紫領域、高彩度青領域、高彩度黄領域、高彩度橙領域および高彩度赤領域の各領域のいずれかに含まれることであり、
    　白色領域は、（ｕ’，ｖ’）の座標点Ｒ＿１（０．２６８、０．４８２）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）、ＯＲ＿１（０．２５７、０．４８９）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）、Ｙ＿１（０．２１７、０．４９４）、Ｙ－Ｇ＿１（０．２０９、０．４９５）、Ｇ＿１（０．１７９、０．４９７）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）、ＢＧ＿１（０．１８６、０．４５５）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）、Ｂ＿１（０．２０１、０．３９７）、Ｂ－Ｐ＿１（０．２１９、０．４１３）、Ｐ＿１（０．２３７、０．４２８）、Ｐ－Ｒ＿１（０．２５２、０．４５５）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　低彩度赤領域は、（ｕ’，ｖ’）の座標点Ｒ－ＯＲ＿３（０．３６７、０．５０９）、Ｒ＿３（０．３８２、０．４９８）、Ｐ－Ｒ＿３（０．３３６、０．４１７）、Ｐ－Ｒ＿１（０．２５２、０．４５５）、Ｒ＿１（０．２６８、０．４８２）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　低彩度橙領域は、（ｕ’，ｖ’）の座標点ＯＲ－Ｙ＿３（０．２７９、０．５３０）、ＯＲ＿３（０．３５１、０．５２１）、Ｒ－ＯＲ＿３（０．３６７、０．５０９）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）、ＯＲ＿１（０．２５７、０．４８９）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　低彩度黄領域は、（ｕ’，ｖ’）の座標点Ｙ－Ｇ＿３（０．２０６、０．５３８）、Ｙ＿３（０．２３１、０．５３６）、ＯＲ－Ｙ＿３（０．２７９、０．５３０）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）、Ｙ＿１（０．２１７、０．４９４）、Ｙ－Ｇ＿１（０．２０９、０．４９５）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　低彩度緑領域は、（ｕ’，ｖ’）の座標点Ｇ－ＢＧ＿３（０．１２６、０．４８１）、Ｇ＿３（０．１１６、０．５４４）、Ｙ－Ｇ＿３（０．２０６、０．５３８）、Ｙ－Ｇ＿１（０．２０９、０．４９５）、Ｇ＿１（０．１７９、０．４９７）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　低彩度青緑領域は、（ｕ’，ｖ’）の座標点ＢＧ－Ｂ＿３（０．１４４、０．３８９）、ＢＧ＿３（０．１３６、０．４１７）、Ｇ－ＢＧ＿３（０．１２６、０．４８１）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）、ＢＧ＿１（０．１８６、０．４５５）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　低彩度青領域は、（ｕ’，ｖ’）の座標点Ｂ－Ｐ＿３（０．２３６、０．２９１）、Ｂ＿３（０．１８２、０．２４５）、ＢＧ－Ｂ＿３（０．１４４、０．３８９）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）、Ｂ＿１（０．２０１、０．３９７）、Ｂ－Ｐ＿１（０．２１９、０．４１３）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　低彩度紫領域は、（ｕ’，ｖ’）の座標点Ｐ－Ｒ＿３（０．３３６、０．４１７）、Ｐ＿３（０．２９１、０．３３６）、Ｂ－Ｐ＿３（０．２３６、０．２９１）、Ｂ－Ｐ＿１（０．２１９、０．４１３）、Ｐ＿１（０．２３７、０．４２８）、Ｐ－Ｒ＿１（０．２５２、０．４５５）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　高彩度赤領域は、（ｕ’，ｖ’）の座標点Ｒ－ＯＲ＿４（０．４１９、０．５２１）、Ｒ＿４（０．４４０、０．５０６）、Ｐ－Ｒ＿４（０．３７９、０．３９８）、Ｐ－Ｒ＿３（０．３３６、０．４１７）、Ｒ＿３（０．３８２、０．４９８）、Ｒ－ＯＲ＿３（０．３６７、０．５０９）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　高彩度橙領域は、（ｕ’，ｖ’）の座標点ＯＲ－Ｙ＿４（０．３０２、０．５４９）、ＯＲ＿４（０．３９８、０．５３７）、Ｒ－ＯＲ＿４（０．４１９、０．５２１）、Ｒ－ＯＲ＿３（０．３６７、０．５０９）、ＯＲ＿３（０．３５１、０．５２１）、ＯＲ－Ｙ＿３（０．２７９、０．５３０）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　高彩度黄領域は、（ｕ’，ｖ’）の座標点Ｙ－Ｇ＿４（０．２０４、０．５５９）、Ｙ＿４（０．２３７、０．５５７）、ＯＲ－Ｙ＿４（０．３０２、０．５４９）、ＯＲ－Ｙ＿３（０．２７９、０．５３０）、Ｙ＿３（０．２３１、０．５３６）、Ｙ－Ｇ＿３（０．２０６、０．５３８）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　高彩度緑領域は、（ｕ’，ｖ’）の座標点Ｇ－ＢＧ＿４（０．０９８、０．４８３）、Ｇ＿４（０．０８５、０．５６８）、Ｙ－Ｇ＿４（０．２０４、０．５５９）、Ｙ－Ｇ＿３（０．２０６、０．５３８）、Ｇ＿３（０．１１６、０．５４４）、Ｇ－ＢＧ＿３（０．１２６、０．４８１）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　高彩度青緑領域は、（ｕ’，ｖ’）の座標点ＢＧ－Ｂ＿４（０．１２２、０．３６１）、ＢＧ＿４（０．１１２、０．３９８）、Ｇ－ＢＧ＿４（０．０９８、０．４８３）、Ｇ－ＢＧ＿３（０．１２６、０．４８１）、ＢＧ＿３（０．１３６、０．４１７）、ＢＧ－Ｂ＿３（０．１４４、０．３８９）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　高彩度青領域は、（ｕ’，ｖ’）の座標点Ｂ－Ｐ＿４（０．２４５、０．２３０）、Ｂ＿４（０．１７３、０．１６９）、ＢＧ－Ｂ＿４（０．１２２、０．３６１）、ＢＧ－Ｂ＿３（０．１４４、０．３８９）、Ｂ＿３（０．１８２、０．２４５）、Ｂ－Ｐ＿３（０．２３６、０．２９１）の各点を結ぶ閉ループ線によって囲まれる内側領域であり、
    　高彩度紫領域は、（ｕ’，ｖ’）の座標点Ｐ－Ｒ＿４（０．３７９、０．３９８）、Ｐ＿４（０．３１７、０．２９１）、Ｂ－Ｐ＿４（０．２４５、０．２３０）、Ｂ－Ｐ＿３（０．２３６、０．２９１）、Ｐ＿３（０．２９１、０．３３６）、Ｐ－Ｒ＿３（０．３３６、０．４１７）の各点を結ぶ閉ループ線によって囲まれる内側領域である。     The control unit is configured to irradiate a first light that irradiates a part of a first region of the radiation angle region, and a second light that irradiates a second region of a part of the radiation angle region different from the first region. In the CIE 1976 u′v ′ chromaticity diagram, the first and second LED light sources are controlled so as to satisfy any one of the following (7A) to (7I) included in the first chromaticity region. The lighting device according to claim 1, wherein
    The condition (7A) is that the first light irradiated to a part of the first region of the radiation angle region is included in a white region defined by the following, and is one of the radiation angle regions different from the first region. The second light emitted to the second region of the part is included in a high-saturation purple region defined by:
    The condition (7B) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation blue-green region defined by the following and is different from the first region. The second light applied to the second region of the angular region is included in the high saturation yellow region defined by:
    Condition (7C) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low saturation red region defined by the following, and the radiation angle is different from the first region The second light applied to the second region of the region is included in the high saturation orange region defined by:
    Condition (7D) is that the first light irradiated to a part of the first region of the radiation angle region is included in a low-saturation purple region defined by the following, and the radiation angle is different from the first region The second light emitted to a second region of a portion of the region is included in a high-saturation purple region defined by:
    The condition (7E) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation green region defined by the following, and the radiation angle region is different from the first region. The second light emitted to some of the second regions is included in any of the low saturation yellow region, the low saturation red region, the high saturation yellow region, and the high saturation orange region defined by the following: ,
    The condition (7F) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation yellow region defined by the following, and the radiation angle region different from the first region The second light emitted to some of the second regions is included in any of the high saturation green region and the high saturation red region defined by the following:
    Condition (7G) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation orange region defined by the following, and the radiation angle region is different from the first region. The second light emitted to some of the second regions is included in any one of the low saturation purple region, the high saturation red region, and the high saturation purple region defined by the following:
    The condition (7H) is that the first light irradiated to a part of the first region of the radiation angle region is included in the high saturation red region defined by the following, and the radiation angle region is different from the first region. The second light emitted to some of the second regions is included in any of the low saturation orange region, the high saturation blue region, the high saturation green region, the high saturation yellow region, and the high saturation orange region defined by the following. And
    Condition (7I) is that the first light irradiated to a part of the first region of the radiation angle region is included in a high-saturation purple region defined by the following, and the radiation angle region is different from the first region. The second light emitted to some of the second areas is defined by the following: low saturation blue area, low saturation blue-green area, low saturation yellow area, low saturation purple area, high saturation blue area, high saturation yellow Area, high saturation orange area, and high saturation red area.
    White areas are coordinate points R_1 (0.268, 0.482), R-OR_1 (0.262, 0.485), OR_1 (0.257, 0.489), OR of (u ′, v ′). -Y_1 (0.233, 0.492), Y_1 (0.217, 0.494), Y-G_1 (0.209, 0.495), G_1 (0.179, 0.497), G-BG_1 (0.182, 0.476), BG_1 (0.186, 0.455), BG-B_1 (0.188, 0.445), B_1 (0.201, 0.397), BP_1 (0 .219, 0.413), P_1 (0.237, 0.428), PR_1 (0.252, 0.455), and an inner region surrounded by a closed loop line connecting the points,
    The low-saturation red areas are represented by coordinate points R-OR_3 (0.367, 0.509), R_3 (0.382, 0.498), and PR_3 (0.336, 0) of (u ′, v ′). .417), P-R_1 (0.252, 0.455), R_1 (0.268, 0.482), and R-OR_1 (0.262, 0.485) are surrounded by a closed loop line. The inner area,
    The low-saturation orange region includes coordinate points OR-Y_3 (0.279, 0.530), OR_3 (0.351, 0.521), R-OR_3 (0.367, 0) of (u ′, v ′). .509), R-OR_1 (0.262, 0.485), OR_1 (0.257, 0.489), and OR-Y_1 (0.233, 0.492) are surrounded by a closed loop line. The inner area,
    The low saturation yellow area is represented by the coordinate points YG_3 (0.206, 0.538), Y_3 (0.231, 0.536), OR-Y_3 (0.279, 0) of (u ′, v ′). .530), OR-Y_1 (0.233, 0.492), Y_1 (0.217, 0.494), and YG_1 (0.209, 0.495) are surrounded by a closed loop line. The inner area,
    The low-saturation green areas are coordinate points G-BG_3 (0.126, 0.481), G_3 (0.116, 0.544), Y-G_3 (0.206, 0) of (u ′, v ′). .538), YG_1 (0.209, 0.495), G_1 (0.179, 0.497), and G-BG_1 (0.182, 0.476) are surrounded by a closed loop line. The inner area,
    The low-saturation blue-green regions are coordinate points BG-B_3 (0.144, 0.389), BG_3 (0.136, 0.417), G-BG_3 (0.126, 0.481), G-BG_1 (0.182, 0.476), BG_1 (0.186, 0.455), and BG-B_1 (0.188, 0.445). The inner area
    The low-saturation blue region is represented by coordinate points BP_3 (0.236, 0.291), B_3 (0.182, 0.245), BG-B_3 (0.144, 0) of (u ′, v ′). 389), BG-B_1 (0.188, 0.445), B_1 (0.201, 0.397), and BP_1 (0.219, 0.413) are surrounded by a closed loop line. The inner area,
    The low-saturation purple areas are coordinate points PR_3 (0.336, 0.417), P_3 (0.291, 0.336), BP_3 (0.236, 0) of (u ′, v ′). .291), BP_1 (0.219, 0.413), P_1 (0.237, 0.428), and PR_1 (0.252, 0.455) are surrounded by a closed loop line. The inner area,
    The high-saturation red region includes coordinate points R-OR_4 (0.419, 0.521), R_4 (0.440, 0.506), and PR-4 (0.379, 0.398) of (u ′, v ′). ), P—R — 3 (0.336, 0.417), R — 3 (0.382, 0.498), R—OR — 3 (0.367, 0.509) And
    The high-saturation orange areas are represented by coordinate points OR-Y_4 (0.302, 0.549), OR_4 (0.398, 0.537), R-OR_4 (0.419, 0.521) of (u ′, v ′). ), R-OR — 3 (0.367, 0.509), OR — 3 (0.351, 0.521), OR-Y — 3 (0.279, 0.530) And
    The high saturation yellow area is represented by the coordinate points YG_4 (0.204, 0.559), Y_4 (0.237, 0.557), OR-Y_4 (0.302, 0.549) of (u ′, v ′). ), OR-Y — 3 (0.279, 0.530), Y — 3 (0.231, 0.536), YG — 3 (0.206, 0.538) And
    The high-saturation green region includes coordinate points G-BG_4 (0.098, 0.483), G_4 (0.085, 0.568), Y-G_4 (0.204, 0.559) of (u ′, v ′). ), YG_3 (0.206, 0.538), G_3 (0.116, 0.544), G-BG_3 (0.126, 0.481) and the inner region surrounded by the closed loop line connecting the points And
    The high-saturation blue-green region includes coordinate points BG-B_4 (0.122, 0.361), BG_4 (0.112, 0.398), G-BG_4 (0.098, 0. 483), G-BG_3 (0.126, 0.481), BG_3 (0.136, 0.417), and BG-B_3 (0.144, 0.389). Area,
    The high-saturation blue areas are coordinate points BP_4 (0.245, 0.230), B_4 (0.173, 0.169), BG-B_4 (0.122, 0.361) of (u ′, v ′). ), BG-B_3 (0.144, 0.389), B_3 (0.182, 0.245), BP_3 (0.236, 0.291), the inner region surrounded by the closed loop line connecting the points And
    The high-saturation purple region is represented by coordinate points PR_4 (0.379, 0.398), P_4 (0.317, 0.291), and BP_4 (0.245, 0.230) of (u ′, v ′). ), BP_3 (0.236, 0.291), P_3 (0.291, 0.336), PR_3 (0.336, 0.417), and the inner region surrounded by the closed loop line connecting the points It is.
  8. 　複数の色の光を放射可能な第１および第２ＬＥＤ光源それぞれを、互いに異なる色の第１および第２光であって前記第１光の一部と前記第２項の一部とを放射角度領域で互いに重なるように放射させる照明方法であって、
    　前記放射角度領域に照射された第１および第２光が、ＣＩＥ１９７６ｕ’ｖ’色度図において、（ｕ’，ｖ’）の座標点Ｒ＿４（０．４４０、０．５０６）、Ｒ－ＯＲ＿４（０．４１９、０．５２１）、ＯＲ＿４（０．３９８、０．５３７）、ＯＲ－Ｙ＿４（０．３０２、０．５４９）、Ｙ＿４（０．２３７，０．５５７）、Ｙ－Ｇ＿４（０．２０４、０．５５９）、Ｇ＿４（０．０８５、０．５６８）、Ｇ－ＢＧ＿４（０．０９８、０．４８３）、ＢＧ＿４（０．１１２、０．３９８）、ＢＧ－Ｂ＿４（０．１２２、０．３６１）、Ｂ＿４（０．１７３、０．１６９）、Ｂ－Ｐ＿４（０．２４５、０．２３０）、Ｐ＿４（０．３１７、０．２９１）、Ｐ－Ｒ＿４（０．３７９、０．３９８）の各点を結ぶことによって得られる上限境界閉ループ線と、（ｕ’，ｖ’）の座標点Ｒ＿１（０．２６８、０．４８２）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）、ＯＲ＿１（０．２５７、０．４８９）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）、Ｙ＿１（０．２１７、０．４９４）、Ｙ－Ｇ＿１（０．２０９、０．４９５）、Ｇ＿１（０．１７９、０．４９７）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）、ＢＧ＿１（０．１８６、０．４５５）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）、Ｂ＿１（０．２０１、０．３９７）、Ｂ－Ｐ＿１（０．２１９、０．４１３）、Ｐ＿１（０．２３７、０．４２８）、Ｐ－Ｒ＿１（０．２５２、０．４５５）の各点を結ぶことによって得られる下限境界閉ループ線との間の第１色度領域に含まれるように、前記第１および第２ＬＥＤ光源を放射させること
    　を特徴とする照明方法。     Each of the first and second LED light sources capable of emitting a plurality of colors of light has a radiation angle between a part of the first light and a part of the second term. An illumination method for emitting radiation so as to overlap each other in an area,
    In the CIE 1976 u′v ′ chromaticity diagram, the first and second lights irradiated on the radiation angle region are represented by coordinate points R_4 (0.440, 0.506), R-OR_4 ( 0.419, 0.521), OR_4 (0.398, 0.537), OR-Y_4 (0.302, 0.549), Y_4 (0.237, 0.557), Y-G_4 (0. 204, 0.559), G_4 (0.085, 0.568), G-BG_4 (0.098, 0.483), BG_4 (0.112, 0.398), BG-B_4 (0.122, 0.361), B_4 (0.173, 0.169), BP_4 (0.245, 0.230), P_4 (0.317, 0.291), P-R_4 (0.379, 0. 398) Upper bound boundary closed loop line obtained by connecting each point And (u ′, v ′) coordinate points R_1 (0.268, 0.482), R-OR_1 (0.262, 0.485), OR_1 (0.257, 0.489), OR-Y_1. (0.233, 0.492), Y_1 (0.217, 0.494), Y-G_1 (0.209, 0.495), G_1 (0.179, 0.497), G-BG_1 (0 182, 0.476), BG_1 (0.186, 0.455), BG-B_1 (0.188, 0.445), B_1 (0.201, 0.397), BP_1 (0.219) , 0.413), P_1 (0.237, 0.428), PR_1 (0.252, 0.455), and the first chromaticity between the lower limit boundary closed loop line obtained by connecting the points Radiating the first and second LED light sources to be included in a region Lighting wherein the door.
  9. 　複数の色の光を放射可能な第１および第２ＬＥＤ光源それぞれを、互いに異なる色の第１および第２光を放射するように制御する制御工程と、
    　前記第１ＬＥＤ光源から放射された第１光の一部と前記第２ＬＥＤ光源から放射された第２光の一部とを放射角度領域で互いに重ねるオーバラップ工程とを備え、
    　前記制御工程は、前記放射角度領域に照射される第１および第２光の最大彩度となる光の色度領域が、ＣＩＥ１９７６ｕ’ｖ’色度図において、（ｕ’，ｖ’）の座標点Ｒ＿４（０．４４０、０．５０６）、Ｒ－ＯＲ＿４（０．４１９、０．５２１）、ＯＲ＿４（０．３９８、０．５３７）、ＯＲ－Ｙ＿４（０．３０２、０．５４９）、Ｙ＿４（０．２３７，０．５５７）、Ｙ－Ｇ＿４（０．２０４、０．５５９）、Ｇ＿４（０．０８５、０．５６８）、Ｇ－ＢＧ＿４（０．０９８、０．４８３）、ＢＧ＿４（０．１１２、０．３９８）、ＢＧ－Ｂ＿４（０．１２２、０．３６１）、Ｂ＿４（０．１７３、０．１６９）、Ｂ－Ｐ＿４（０．２４５、０．２３０）、Ｐ＿４（０．３１７、０．２９１）、Ｐ－Ｒ＿４（０．３７９、０．３９８）の各点を結ぶことによって得られる上限境界閉ループ線と、（ｕ’，ｖ’）の座標点Ｒ＿１（０．２６８、０．４８２）、Ｒ－ＯＲ＿１（０．２６２、０．４８５）、ＯＲ＿１（０．２５７、０．４８９）、ＯＲ－Ｙ＿１（０．２３３、０．４９２）、Ｙ＿１（０．２１７、０．４９４）、Ｙ－Ｇ＿１（０．２０９、０．４９５）、Ｇ＿１（０．１７９、０．４９７）、Ｇ－ＢＧ＿１（０．１８２、０．４７６）、ＢＧ＿１（０．１８６、０．４５５）、ＢＧ－Ｂ＿１（０．１８８、０．４４５）、Ｂ＿１（０．２０１、０．３９７）、Ｂ－Ｐ＿１（０．２１９、０．４１３）、Ｐ＿１（０．２３７、０．４２８）、Ｐ－Ｒ＿１（０．２５２、０．４５５）の各点を結ぶことによって得られる下限境界閉ループ線との間の第１色度領域に含まれるように、前記第１および第２ＬＥＤ光源を制御すること
    　を特徴とする照明方法。     A control step of controlling each of the first and second LED light sources capable of emitting light of a plurality of colors to emit first and second lights of different colors;
    An overlapping step of overlapping a part of the first light emitted from the first LED light source and a part of the second light emitted from the second LED light source in a radiation angle region;
    In the control step, the chromaticity region of light that is the maximum saturation of the first and second lights irradiated on the radiation angle region is represented by coordinates (u ′, v ′) in the CIE 1976 u′v ′ chromaticity diagram. Point R_4 (0.440, 0.506), R-OR_4 (0.419, 0.521), OR_4 (0.398, 0.537), OR-Y_4 (0.302, 0.549), Y_4 (0.237, 0.557), YG_4 (0.204, 0.559), G_4 (0.085, 0.568), G-BG_4 (0.098, 0.483), BG_4 (0 112, 0.398), BG-B_4 (0.122, 0.361), B_4 (0.173, 0.169), BP_4 (0.245, 0.230), P_4 (0.317) , 0.291), PR_4 (0.379, 0.398) , And the coordinate points R_1 (0.268, 0.482), R-OR_1 (0.262, 0.485), OR_1 (0. 257, 0.489), OR-Y_1 (0.233, 0.492), Y_1 (0.217, 0.494), Y-G_1 (0.209, 0.495), G_1 (0.179, 0.497), G-BG_1 (0.182, 0.476), BG_1 (0.186, 0.455), BG-B_1 (0.188, 0.445), B_1 (0.201, 0. 397), BP_1 (0.219, 0.413), P_1 (0.237, 0.428), and PR_1 (0.252, 0.455) are connected to the lower limit boundary. To be included in the first chromaticity region between the closed loop line Illumination method characterized by controlling said first and second 2LED light source.
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