WO2012090589A1 - Lighting device - Google Patents

Lighting device Download PDF

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Publication number
WO2012090589A1
WO2012090589A1 PCT/JP2011/075594 JP2011075594W WO2012090589A1 WO 2012090589 A1 WO2012090589 A1 WO 2012090589A1 JP 2011075594 W JP2011075594 W JP 2011075594W WO 2012090589 A1 WO2012090589 A1 WO 2012090589A1
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WO
WIPO (PCT)
Prior art keywords
light
wavelength
visible light
lighting device
red
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Application number
PCT/JP2011/075594
Other languages
French (fr)
Japanese (ja)
Inventor
規央 小高
Original Assignee
株式会社Ｊｖｃケンウッド
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Application filed by 株式会社Ｊｖｃケンウッド filed Critical 株式会社Ｊｖｃケンウッド
Publication of WO2012090589A1 publication Critical patent/WO2012090589A1/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/12—Signs, boards or panels, illuminated from behind the insignia using a transparent mirror or other light reflecting surface transparent to transmitted light whereby a sign, symbol, picture or other is visible only when illuminated
    • 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

Definitions

  • the present invention relates to a lighting device.
  • Patent Document 1 discloses an operation display unit of a navigation device with an AV function.
  • the operation display unit described in Patent Document 1 includes a light-shielding panel having a transmission window, a long pass filter and a short pass filter, a red light emitting diode and a blue light emitting diode.
  • the transparent window is in the shape of “AV” and “NAVI”.
  • a short pass filter is superimposed on the “AV” portion of the transmission window, and a long pass filter is superimposed on the “NAVI” portion.
  • the red light emitting diode when the red light emitting diode emits red light (for example, a wavelength of 700 nm), the red light is shielded by a short pass filter (shields visible light having a wavelength of 500 nm or more), but a long pass filter ( Visible light with a wavelength of less than 500 nm is transmitted. As a result, the “NAVI” portion of the transmission window becomes brighter.
  • the blue light emitting diode emits blue light (for example, wavelength 435.8 nm)
  • it is shielded by the long pass filter, but is transmitted through the short pass filter.
  • the “AV” portion of the transmission window becomes brighter.
  • Patent Document 1 it is difficult to selectively shield two visible lights having relatively close wavelengths in the entire visible light region with a light shielding filter.
  • An object of the present invention is to provide a technique for selectively shielding two visible lights having relatively close wavelengths in visible light.
  • the illumination device includes a first light source that emits first visible light having a dominant wavelength of the first wavelength, and second visible light having a second wavelength that is different from the first wavelength.
  • a second light source that emits light, a light-shielding part that shields the first visible light and the second visible light, a first transmission part that transmits the first visible light, and a light that transmits the second visible light.
  • a lighting control means for selectively lighting the first light source and the second light source.
  • the center-of-gravity wavelength of the spectral transmittance of the second transmission part is set so as to be opposite to the peak wavelength of the first visible light across the peak wavelength of the second visible light.
  • the centroid wavelength of the spectral transmittance of the first transmission part is set to be opposite to the peak wavelength of the second visible light across the peak wavelength of the first visible light.
  • the spectral distribution of the first visible light and the spectral distribution of the second visible light partially overlap.
  • the illumination device includes a first light source that emits first visible light whose dominant wavelength is the first wavelength, and a second light source whose second wavelength is different from the first wavelength.
  • a second light source that emits visible light; a light-shielding portion that shields the first visible light and the second visible light; a first transmission portion that transmits the first visible light; and the second visible light.
  • a light shielding layer having a second transmissive portion for transmitting light, and lighting control means for selectively lighting the first light source and the second light source.
  • the spectral distribution of the first visible light and the spectral distribution of the second visible light partially overlap.
  • the transmission wavelength region of the second transmission part is set so as not to overlap with the spectral wavelength region of the first visible light.
  • the transmission wavelength range of the first transmission unit is set so as not to overlap with the spectral wavelength range of the second visible light.
  • the light shielding layer is covered with a smoke filter.
  • the light shielding layer is formed in a sheet shape.
  • the first wavelength is in the red band of 600 to 750 nm.
  • the second wavelength is in the green band of 500 to 575 nm.
  • the centroid wavelength of the spectral transmittance of the second transmission part is in a blue band of 450 to 510 nm.
  • a component having a wavelength close to the peak wavelength of the second visible light among the first visible light emitted from the first light source is prevented from being transmitted through the second transmission part. be able to. Accordingly, even two visible lights having relatively close wavelengths (dominant wavelengths) in visible light can be selectively shielded.
  • the user interface 1 includes a panel unit 2, a cover 3, a liquid crystal panel 4, a diffusion sheet 5, a light guide plate 6, a holder 7, a wiring board 8, and a back cover 9 in order from the passenger compartment side. Yes.
  • the user interface 1 further includes a control unit 50 shown in FIG.
  • the panel part 2 is a part exposed to the passenger compartment side.
  • the panel unit 2 includes a liquid crystal display window 10, a key top 12 (smoke filter) of the call button 11 shown in FIG. 2, a volume adjustment knob 13, and the like.
  • the cover 3 fixes the liquid crystal panel 4, the diffusion sheet 5 and the light guide plate 6 accommodated in the holder 7 to the holder 7.
  • the liquid crystal panel 4 is a transmissive liquid crystal panel.
  • the diffusion sheet 5 is a translucent sheet that scatters or diffuses light.
  • the light guide plate 6 is made of a translucent material such as a resin such as transparent plastic or glass, and is formed in a substantially rectangular plate shape.
  • the holder 7 accommodates the liquid crystal panel 4, the diffusion sheet 5, and the light guide plate 6.
  • the wiring board 8 includes a plurality of LEDs 14 that are light sources of the liquid crystal panel 4, a volume adjusting volume 15, and a two-color LED 16 that is a light source of the call button 11 (first light source, second light source). Light source) and a momentary switch 17 (automatic return type switch).
  • the holder 7 is fixed to the wiring board 8 with double-sided tape.
  • the cover 3 is fixed to the holder 7 with a hook.
  • the panel part 2 is fixed with a screw with respect to the back cover 9, pinching
  • the call button 11 includes a key top 12, a pattern sheet 18 (light shielding layer, light shielding sheet), a sheet holder 19, a two-color LED 16, and a momentary switch 17.
  • the key top 12 is exposed from the panel portion 2 in FIG. 1 so as to be movable back and forth in a direction orthogonal to the wiring board 8.
  • the key top 12 is made of a black transparent resin having a low visible light transmittance.
  • the visible light transmittance of the key top 12 is set to 40 to 60%, for example.
  • the pattern sheet 18 is a colored resin sheet and is covered with the key top 12. Specifically, the pattern sheet 18 is disposed between the key top 12 and the sheet holder 19. As shown in FIG. 3, the pattern sheet 18 is formed with a light shielding part 20, a red color filter 21 (first transmission part), and a blue color filter 22 (second transmission part).
  • the light shielding part 20 is a part that completely shields visible light.
  • the light shielding unit 20 is formed by applying black ink to the resin sheet of the pattern sheet 18.
  • the red color filter 21 is an image that looks like an on-hook receiver, and is formed by applying red ink to the resin sheet of the pattern sheet 18.
  • the transmission characteristics of the red color filter 21 are indicated by a solid line 21a in FIG.
  • the center-of-gravity wavelength of the spectral transmittance 21a of the red color filter 21 is in the red band of 600 to 750 nm, specifically 660 nm.
  • the spectral transmittance 21a of the red color filter 21 is symmetrical with respect to the wavelength as shown in FIG. 4, and therefore the peak wavelength of the spectral transmittance 21a of the red color filter 21 is the centroid wavelength. It matches.
  • the blue color filter 22 is an image of a receiver in an off-hook state, and is formed by applying blue ink to the resin sheet of the pattern sheet 18.
  • the transmission characteristics of the blue color filter 22 are indicated by a solid line 22a in FIG.
  • the centroid wavelength of the spectral transmittance 22a of the blue color filter 22 is in the blue band of 450 to 510 nm, specifically 480 nm.
  • the spectral transmittance 22a of the blue color filter 22 is symmetrical with respect to the wavelength as shown in FIG. 4, and therefore the peak wavelength of the spectral transmittance 22a of the blue color filter 22 is the center wavelength. It matches.
  • the sheet holder 19 is a substantially cylindrical body as shown in FIG. 2 and holds the pattern sheet 18 against the back surface of the key top 12.
  • the sheet holder 19 is attached to the back surface of the key top 12.
  • the two-color LED 16 is a two-color LED capable of selectively emitting red light (first visible light) and green light (second visible light), and is connected to the control unit 50 shown in FIG. .
  • the light emission characteristics of the two-color LED 16 in this embodiment are shown in FIG. In FIG. 4, the emission characteristic of red light emitted from the two-color LED 16 is indicated by a two-dot chain line 16a. On the other hand, the emission characteristic of the green light emitted from the two-color LED 16 is indicated by a two-dot chain line 16b.
  • the dominant wavelength of red light emitted from the two-color LED 16 is in the red band of 600 to 750 nm, specifically 640 nm (first wavelength). Therefore, the peak wavelength of red light emitted from the two-color LED 16 is 640 nm.
  • the dominant wavelength of the green light emitted from the two-color LED 16 is in the green band of 500 to 575 nm, specifically 520 nm (second wavelength). Therefore, the peak wavelength of the green light emitted from the two-color LED 16 is 520 nm.
  • the spectral distribution of the red light emitted from the two-color LED 16 and the spectral distribution of the green light emitted from the two-color LED 16 partially overlap with each other as shown in FIG.
  • the momentary switch 17 is a momentary switch that is operated in accordance with the advance / retreat operation of the key top 12, and is connected to the control unit 50 shown in FIG.
  • control unit 50 includes a CPU 51 (Central Processing Unit), a RAM 52 (Random Access Memory), and a ROM 53 (Read Only Memory).
  • the CPU 51 is a central arithmetic unit.
  • the RAM 52 is a readable / writable storage means.
  • the ROM 53 is a read-only storage unit.
  • the ROM 53 stores a control program. The control program is read by the CPU 51 and executed on the CPU 51, thereby causing the hardware such as the CPU 51 to function as the call control unit 54 and the lighting control unit 55 (lighting control means).
  • a mobile phone 56 possessed by the driver is connected to the control unit 50 in advance.
  • the call control unit 54 controls incoming calls to the mobile phone 56, outgoing calls from the mobile phone 56, and the like.
  • the lighting control unit 55 causes the two-color LED 16 to selectively emit red light or green light.
  • the lighting device includes at least a two-color LED 16 (first light source, second light source), a pattern sheet 18 (light-shielding layer), and a lighting control unit 55 (lighting control means).
  • the lighting control unit 55 causes the two-color LED 16 to emit green light (S301). Then, as shown in the left part of hatching in FIG. 4, a component of the green light spectral distribution 16 b that overlaps with the spectral transmittance 22 a of the blue color filter 22 with respect to the wavelength passes through the blue color filter 22. Accordingly, at this time, the black-colored and translucent key top 12 is illuminated with a slightly bluish green pattern of the handset that looks like an off-hook state. On the other hand, as shown in the right part of hatching in FIG.
  • the lighting control unit 55 When talking back, if there is no incoming call to the mobile phone 56 (S302: NO) and no outgoing call from the mobile phone 56 (S303: NO), the lighting control unit 55 emits green light to the two-color LED 16 Continue (S301).
  • the lighting control unit 55 causes the two-color LED 16 to emit green light intermittently (S304).
  • the key top 12 of the call button 11 is intermittently illuminated with the pattern of the handset in the image of the off-hook state.
  • the call control unit 54 waits for the driver to press the call button 11 (S305: NO).
  • the lighting control unit 55 causes the two-color LED 16 to emit red light (S306).
  • operator starts a telephone call via the microphone and speaker which are not shown in figure (S307). At this time, as indicated by hatching in FIG.
  • a component overlapping the spectral transmittance 21 a of the red color filter 21 with respect to the wavelength in the spectral distribution 16 a of the red light passes through the red color filter 21. Therefore, at this time, the black-colored and translucent key top 12 is illuminated in red with the pattern of the handset that is in the image of the on-hook state.
  • a component that overlaps with the spectral transmittance 22 a of the blue color filter 22 with respect to the wavelength passes through the blue color filter 22.
  • the overlapping components are very small, and the driver cannot visually recognize the pattern of the handset that looks like an off-hook state via the black-colored and translucent key top 12.
  • the call control unit 54 waits for the driver to press the call button 11 during the driver's call (S308: NO).
  • the lighting control unit 55 causes the two-color LED 16 to emit green light again (S301).
  • the black and semi-transparent key top 12 is illuminated with a slightly bluish green again in the pattern of the handset that looks like an off-hook state.
  • the lighting control unit 55 causes the two-color LED 16 to emit green light again (S301).
  • the black and semi-transparent key top 12 is illuminated with a slightly bluish green again in the pattern of the handset that looks like an off-hook state.
  • Patent Document 1 As common technical knowledge in the field of color filters, when it is intended to produce different images when two visible lights having different dominant wavelengths are selectively emitted, as pointed out in paragraph No. 0033 of Patent Document 1, The dominant wavelengths of the two visible lights are separated as much as possible.
  • a red light emitting diode and a blue light emitting diode are employed, and a long pass filter and a short pass filter that draw visible light emitted by these at a predetermined wavelength (500 nm) are used.
  • the illuminating device includes a two-color LED 16 (first light source, second light source), a pattern sheet 18 (light shielding layer), and a lighting control unit 55 (lighting control means).
  • the two-color LED 16 emits red light and green light.
  • the pattern sheet 18 includes a light shielding unit 20, a red color filter 21, and a blue color filter 22.
  • the light shielding unit 20 shields red light and green light.
  • the red color filter 21 is for transmitting red light.
  • the blue color filter 22 is for transmitting green light.
  • the lighting control unit 55 is for selectively emitting red light or green light to the two-color LED 16.
  • the centroid wavelength of the spectral transmittance 22a of the blue color filter 22 is opposite to the peak wavelength of the red light across the peak wavelength of the green light (that is, the peak of the green light). The wavelength is set to be shorter than the wavelength.
  • the center wavelength of the spectral transmittance 21a of the red color filter 21 is opposite to the peak wavelength of green light across the peak wavelength of red light (that is, the peak of red light).
  • the wavelength is set to be longer than the wavelength. According to the above configuration, as shown in FIG. 4, it is possible to suppress a component of green light whose wavelength is close to the peak wavelength of red light from being transmitted through the red color filter 21. Therefore, it becomes possible to more selectively and selectively shield two visible lights having relatively close wavelengths among visible lights.
  • the above-described technique for selectively blocking two visible lights having wavelengths that are relatively close to each other in the visible light is more useful.
  • the pattern sheet 18 is covered with a key top 12 as a smoke filter. According to the above configuration, it is difficult to visually recognize the presence of the red color filter 21 and the blue color filter 22 from the outside when the two-color LED 16 is completely turned off.
  • the two-color LED 16 capable of selectively emitting two visible lights having different dominant wavelengths is employed.
  • a red LED that emits red light and a green LED that emits green light which are provided separately, can be employed.
  • the center wavelength of the spectral transmittance 22a of the blue color filter 22 is opposite to the peak wavelength of the red light (that is, the peak wavelength of the green light).
  • the wavelength is set to be shorter than the peak wavelength of green light.
  • the transmission wavelength range of the blue color filter 22 may be set so as not to overlap with the spectral wavelength range of red light.
  • the “transmission wavelength region” is defined as a wavelength band in which the transmittance is 5% or more.
  • the “spectral wavelength region” is defined as a wavelength band in which the specific energy is 5% or more.
  • the center wavelength of the spectral transmittance 21 a of the red color filter 21 is opposite to the peak wavelength of green light (that is, the peak wavelength of red light is sandwiched) (that is, The wavelength is set to be longer than the peak wavelength of red light.
  • the transmission wavelength range of the red color filter 21 may be set so as not to overlap the spectral wavelength range of green light.
  • each process listed as the operation of the user interface 1 in this specification does not necessarily have to be processed in time series in the order described in the flowchart, and may include processes in parallel or by a subroutine.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Push-Button Switches (AREA)
  • Optical Filters (AREA)

Abstract

Disclosed is a lighting device provided with a two color LED (16) (first light source, second light source), a pattern sheet (18) (light shielding layer), and a lighting control unit (55) (lighting control means). The two color LED (16) emits red light and green light. The pattern sheet (18) has a light shielding portion (20), a red color filter (21), and a blue color filter (22). The light shielding portion (20) shields the red light and the green light. The red color filter (21) is a filter for transmitting the red light. The blue color filter (22) is a filter for transmitting the green light. The lighting control unit (55) is a unit for making the two color LED (16) selectively emit the red light or the green light. The centroid wavelength of a spectral transmittance (22a) of the blue color filter (22) is set so as to be on the side opposite to the peak wavelength of the red light with the peak wavelength of the green light therebetween. The lighting device can selectively shield two kinds of visible light having the relatively similar wavelengths in visible light.

Description

照明装置Lighting equipment
　本発明は、照明装置に関する。 The present invention relates to a lighting device.
　この種の技術として、特許文献１は、AV機能付きのナビゲーション装置の操作表示部を開示している。特許文献１に記載された操作表示部は、透過窓を有する遮光パネルと、ロングパスフィルタ及びショートパスフィルタと、赤色発光ダイオード及び青色発光ダイオードとを備えている。 As this type of technology, Patent Document 1 discloses an operation display unit of a navigation device with an AV function. The operation display unit described in Patent Document 1 includes a light-shielding panel having a transmission window, a long pass filter and a short pass filter, a red light emitting diode and a blue light emitting diode.
　透過窓は、「AV」と「NAVI」という文字を象っている。透過窓の「AV」の部分にはショートパスフィルタが重畳されており、「NAVI」の部分にはロングパスフィルタが重畳されている。 The transparent window is in the shape of “AV” and “NAVI”. A short pass filter is superimposed on the “AV” portion of the transmission window, and a long pass filter is superimposed on the “NAVI” portion.
　この構成で、赤色発光ダイオードが赤色光（例えば、波長７００ｎｍ）を出射すると、赤色光は、ショートパスフィルタ（波長が５００ｎｍ以上の可視光を遮光する。）によっては遮光されるが、ロングパスフィルタ（波長が５００ｎｍ未満の可視光を遮光する。）は透過する。この結果、透過窓の「NAVI」の部分が明るくなる。一方、青色発光ダイオードが青色光（例えば、波長４３５．８ｎｍ）を出射すると、ロングパスフィルタによっては遮光されるが、ショートパスフィルタは透過する。この結果、透過窓の「AV」の部分が明るくなる。 In this configuration, when the red light emitting diode emits red light (for example, a wavelength of 700 nm), the red light is shielded by a short pass filter (shields visible light having a wavelength of 500 nm or more), but a long pass filter ( Visible light with a wavelength of less than 500 nm is transmitted. As a result, the “NAVI” portion of the transmission window becomes brighter. On the other hand, when the blue light emitting diode emits blue light (for example, wavelength 435.8 nm), it is shielded by the long pass filter, but is transmitted through the short pass filter. As a result, the “AV” portion of the transmission window becomes brighter.
特開２０１０－２１７７１６号公報JP 2010-217716 A
　しかしながら、上記特許文献１の構成では、可視光全域の中で波長が比較的近い２つの可視光を遮光フィルタで選択的に遮光することは難しい。 However, in the configuration of Patent Document 1, it is difficult to selectively shield two visible lights having relatively close wavelengths in the entire visible light region with a light shielding filter.
　本願発明の目的は、可視光の中で波長が比較的近い２つの可視光を選択的に遮光するための技術を提供することにある。 An object of the present invention is to provide a technique for selectively shielding two visible lights having relatively close wavelengths in visible light.
　本願発明の観点によれば、照明装置は、ドミナント波長が第１波長である第１可視光を出射する第１光源と、ドミナント波長が前記第１波長と異なる第２波長である第２可視光を出射する第２光源と、前記第１可視光及び前記第２可視光を遮光する遮光部と、前記第１可視光を透過させるための第１透過部と、前記第２可視光を透過させるための第２透過部とを有する遮光層と、前記第１光源と前記第２光源を選択的に点灯させる点灯制御手段と、を備える。前記第２透過部の分光透過率の重心波長は、前記第２可視光のピーク波長を挟んで前記第１可視光のピーク波長と反対側となるように設定される。
　好ましくは、前記第１透過部の分光透過率の重心波長は、前記第１可視光のピーク波長を挟んで前記第２可視光のピーク波長と反対側となるように設定される。
　好ましくは、前記第１可視光の分光分布と、前記第２可視光の分光分布は、一部重複している。
　本願発明の他の観点によれば、照明装置は、ドミナント波長が第１波長である第１可視光を出射する第１光源と、ドミナント波長が前記第１波長と異なる第２波長である第２可視光を出射する第２光源と、前記第１可視光及び前記第２可視光を遮光する遮光部と、前記第１可視光を透過させるための第１透過部と、前記第２可視光を透過させるための第２透過部とを有する遮光層と、前記第１光源と前記第２光源を選択的に点灯させる点灯制御手段と、を備える。前記第１可視光の分光分布と、前記第２可視光の分光分布は、一部重複している。前記第２透過部の透過波長域は、前記第１可視光の分光波長域に対して重複しないように設定される。
　好ましくは、前記第１透過部の透過波長域は、前記第２可視光の分光波長域に対して重複しないように設定される。
　好ましくは、前記遮光層は、スモークフィルタで覆われている。
　好ましくは、前記遮光層は、シート状に形成されている。
　好ましくは、前記第１波長は、６００～７５０ｎｍの赤色帯域内である。
　好ましくは、前記第２波長は、５００～５７５ｎｍの緑色帯域内である。
　好ましくは、前記第２透過部の分光透過率の重心波長は、４５０～５１０ｎｍの青色帯域内である。 According to an aspect of the present invention, the illumination device includes a first light source that emits first visible light having a dominant wavelength of the first wavelength, and second visible light having a second wavelength that is different from the first wavelength. A second light source that emits light, a light-shielding part that shields the first visible light and the second visible light, a first transmission part that transmits the first visible light, and a light that transmits the second visible light. And a lighting control means for selectively lighting the first light source and the second light source. The center-of-gravity wavelength of the spectral transmittance of the second transmission part is set so as to be opposite to the peak wavelength of the first visible light across the peak wavelength of the second visible light.
Preferably, the centroid wavelength of the spectral transmittance of the first transmission part is set to be opposite to the peak wavelength of the second visible light across the peak wavelength of the first visible light.
Preferably, the spectral distribution of the first visible light and the spectral distribution of the second visible light partially overlap.
According to another aspect of the present invention, the illumination device includes a first light source that emits first visible light whose dominant wavelength is the first wavelength, and a second light source whose second wavelength is different from the first wavelength. A second light source that emits visible light; a light-shielding portion that shields the first visible light and the second visible light; a first transmission portion that transmits the first visible light; and the second visible light. A light shielding layer having a second transmissive portion for transmitting light, and lighting control means for selectively lighting the first light source and the second light source. The spectral distribution of the first visible light and the spectral distribution of the second visible light partially overlap. The transmission wavelength region of the second transmission part is set so as not to overlap with the spectral wavelength region of the first visible light.
Preferably, the transmission wavelength range of the first transmission unit is set so as not to overlap with the spectral wavelength range of the second visible light.
Preferably, the light shielding layer is covered with a smoke filter.
Preferably, the light shielding layer is formed in a sheet shape.
Preferably, the first wavelength is in the red band of 600 to 750 nm.
Preferably, the second wavelength is in the green band of 500 to 575 nm.
Preferably, the centroid wavelength of the spectral transmittance of the second transmission part is in a blue band of 450 to 510 nm.
　本願発明によれば、前記第１光源から出射される前記第１可視光のうち波長が前記第２可視光のピーク波長に近い成分が、前記第２透過部を透過してしまうのを抑制することができる。従って、可視光の中で波長（ドミナント波長）が比較的近い２つの可視光であっても選択的に遮光できるようになる。 According to the present invention, a component having a wavelength close to the peak wavelength of the second visible light among the first visible light emitted from the first light source is prevented from being transmitted through the second transmission part. be able to. Accordingly, even two visible lights having relatively close wavelengths (dominant wavelengths) in visible light can be selectively shielded.
車載用AV機器のユーザーインターフェースの分解斜視図である。It is a disassembled perspective view of the user interface of in-vehicle AV equipment. 通話ボタンの分解斜視図である。It is a disassembled perspective view of a call button. 遮光シートの正面図である。It is a front view of a light shielding sheet. 各LEDの発光特性と各カラーフィルタの透過特性を示すグラフであって、緑色光出射時をイメージしたものである。It is a graph which shows the light emission characteristic of each LED, and the transmission characteristic of each color filter, Comprising: The time of green light emission is imaged. 各LEDの発光特性と各カラーフィルタの透過特性を示すグラフであって、赤色光出射時をイメージしたものである。It is a graph which shows the light emission characteristic of each LED, and the transmission characteristic of each color filter, Comprising: The time of red light emission is imaged. ユーザーインターフェースの制御部のブロック図である。It is a block diagram of the control part of a user interface. ユーザーインターフェースの制御部の制御フローである。It is a control flow of the control part of a user interface. 各LEDの発光特性と各カラーフィルタの透過特性を示すグラフであって、赤色光出射時をイメージしたものである（比較例）。It is a graph which shows the light emission characteristic of each LED, and the transmission characteristic of each color filter, Comprising: The time of a red light emission is imaged (comparative example).
　以下に添付図面を参照しながら、本発明の好適な実施形態について詳細に説明する。かかる実施形態に示す寸法、材料、その他具体的な数値などは、発明の理解を容易とするための例示にすぎず、特に断る場合を除き、本発明を限定するものではない。尚、本明細書及び図面において、実質的に同一の機能、構成を有する要素については、同一の符号を付することにより重複説明を省略し、また本発明に直接関係のない要素は図示を省略する。 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiment are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.
　以下、図１～図６を参照して、車載用AV機器のユーザーインターフェース１の構成を説明する。 Hereinafter, the configuration of the user interface 1 of the in-vehicle AV equipment will be described with reference to FIGS.
（ユーザーインターフェース１）
　図１に示すようにユーザーインターフェース１は、車室側から順に、パネル部２、カバー３、液晶パネル４、拡散シート５、導光板６、ホルダー７、配線基板８、裏蓋９によって構成されている。ユーザーインターフェース１は、更に、図６に示す制御部５０を備えている。 (User interface 1)
As shown in FIG. 1, the user interface 1 includes a panel unit 2, a cover 3, a liquid crystal panel 4, a diffusion sheet 5, a light guide plate 6, a holder 7, a wiring board 8, and a back cover 9 in order from the passenger compartment side. Yes. The user interface 1 further includes a control unit 50 shown in FIG.
　パネル部２は、車室側に露出する部分である。パネル部２は、液晶表示用窓１０や、図２に示す通話ボタン１１のキートップ１２（スモークフィルタ）、音量調整用ツマミ１３等を備えている。 The panel part 2 is a part exposed to the passenger compartment side. The panel unit 2 includes a liquid crystal display window 10, a key top 12 (smoke filter) of the call button 11 shown in FIG. 2, a volume adjustment knob 13, and the like.
　カバー３は、ホルダー７に収容された液晶パネル４や拡散シート５、導光板６をホルダー７に対して固定する。 The cover 3 fixes the liquid crystal panel 4, the diffusion sheet 5 and the light guide plate 6 accommodated in the holder 7 to the holder 7.
　液晶パネル４は、透過型液晶パネルである。 The liquid crystal panel 4 is a transmissive liquid crystal panel.
　拡散シート５は、光を散乱又は拡散させる半透明なシートである。 The diffusion sheet 5 is a translucent sheet that scatters or diffuses light.
　導光板６は、透明のプラスチック等の樹脂やガラスなどの透光材料からなり、略四角形板状に形成されている。 The light guide plate 6 is made of a translucent material such as a resin such as transparent plastic or glass, and is formed in a substantially rectangular plate shape.
　ホルダー７は、液晶パネル４と拡散シート５と導光板６を収容する。 The holder 7 accommodates the liquid crystal panel 4, the diffusion sheet 5, and the light guide plate 6.
　配線基板８には、図１及び図２に示すように、液晶パネル４の光源である複数のLED１４や音量調整用ボリューム１５、通話ボタン１１の光源である２色LED１６（第１光源、第２光源）及びモーメンタリスイッチ１７（自動復帰型スイッチ）が設けられている。 As shown in FIGS. 1 and 2, the wiring board 8 includes a plurality of LEDs 14 that are light sources of the liquid crystal panel 4, a volume adjusting volume 15, and a two-color LED 16 that is a light source of the call button 11 (first light source, second light source). Light source) and a momentary switch 17 (automatic return type switch).
　ホルダー７は、配線基板８に対して両面テープで固定される。カバー３は、ホルダー７に対してフックで固定される。そして、パネル部２は、配線基板８等を挟みつつ裏蓋９に対してネジで固定される。 The holder 7 is fixed to the wiring board 8 with double-sided tape. The cover 3 is fixed to the holder 7 with a hook. And the panel part 2 is fixed with a screw with respect to the back cover 9, pinching | interposing the wiring board 8 grade | etc.,.
（通話ボタン１１）
　図２に示すように通話ボタン１１は、キートップ１２、模様シート１８（遮光層、遮光シート）、シートホルダ１９、２色LED１６、モーメンタリスイッチ１７によって構成されている。 (Call button 11)
As shown in FIG. 2, the call button 11 includes a key top 12, a pattern sheet 18 (light shielding layer, light shielding sheet), a sheet holder 19, a two-color LED 16, and a momentary switch 17.
　キートップ１２は、配線基板８に対して直交する方向に進退自在となるように図１のパネル部２から露出している。キートップ１２は、可視光透過率が低い黒色系の透明樹脂によって構成されている。キートップ１２の可視光透過率は、例えば４０～６０％に設定される。 The key top 12 is exposed from the panel portion 2 in FIG. 1 so as to be movable back and forth in a direction orthogonal to the wiring board 8. The key top 12 is made of a black transparent resin having a low visible light transmittance. The visible light transmittance of the key top 12 is set to 40 to 60%, for example.
　模様シート１８は、着色された樹脂シートであって、キートップ１２によって覆われている。詳しくは、模様シート１８は、キートップ１２とシートホルダ１９の間に配置されている。図３に示すように、模様シート１８には、遮光部２０と、赤色系カラーフィルタ２１（第１透過部）と、青色系カラーフィルタ２２（第２透過部）とが形成されている。 The pattern sheet 18 is a colored resin sheet and is covered with the key top 12. Specifically, the pattern sheet 18 is disposed between the key top 12 and the sheet holder 19. As shown in FIG. 3, the pattern sheet 18 is formed with a light shielding part 20, a red color filter 21 (first transmission part), and a blue color filter 22 (second transmission part).
　遮光部２０は、可視光を完全に遮光する部分である。遮光部２０は、模様シート１８の樹脂シートに黒色系のインクを塗布することによって形成されている。 The light shielding part 20 is a part that completely shields visible light. The light shielding unit 20 is formed by applying black ink to the resin sheet of the pattern sheet 18.
　赤色系カラーフィルタ２１は、オンフック状態の受話器をイメージしたフィルタであって、模様シート１８の樹脂シートに赤色系のインクを塗布することによって形成されている。赤色系カラーフィルタ２１の透過特性を図４において符号２１ａの実線で示している。本実施形態において赤色系カラーフィルタ２１の分光透過率２１ａの重心波長は、６００～７５０ｎｍの赤色帯域内であり、具体的には６６０ｎｍである。また、本実施形態において赤色系カラーフィルタ２１の分光透過率２１ａは、図４に示すように波長に関して左右対称であるから、赤色系カラーフィルタ２１の分光透過率２１ａのピーク波長は、その重心波長に一致している。 The red color filter 21 is an image that looks like an on-hook receiver, and is formed by applying red ink to the resin sheet of the pattern sheet 18. The transmission characteristics of the red color filter 21 are indicated by a solid line 21a in FIG. In this embodiment, the center-of-gravity wavelength of the spectral transmittance 21a of the red color filter 21 is in the red band of 600 to 750 nm, specifically 660 nm. In addition, in the present embodiment, the spectral transmittance 21a of the red color filter 21 is symmetrical with respect to the wavelength as shown in FIG. 4, and therefore the peak wavelength of the spectral transmittance 21a of the red color filter 21 is the centroid wavelength. It matches.
　青色系カラーフィルタ２２は、オフフック状態の受話器をイメージしたフィルタであって、模様シート１８の樹脂シートに青色系のインクを塗布することによって形成されている。青色系カラーフィルタ２２の透過特性を図４において符号２２ａの実線で示している。本実施形態において青色系カラーフィルタ２２の分光透過率２２ａの重心波長は、４５０～５１０ｎｍの青色帯域内であり、具体的には４８０ｎｍである。また、本実施形態において青色系カラーフィルタ２２の分光透過率２２ａは、図４に示すように波長に関して左右対称であるから、青色系カラーフィルタ２２の分光透過率２２ａのピーク波長は、その重心波長に一致している。 The blue color filter 22 is an image of a receiver in an off-hook state, and is formed by applying blue ink to the resin sheet of the pattern sheet 18. The transmission characteristics of the blue color filter 22 are indicated by a solid line 22a in FIG. In the present embodiment, the centroid wavelength of the spectral transmittance 22a of the blue color filter 22 is in the blue band of 450 to 510 nm, specifically 480 nm. Further, in the present embodiment, the spectral transmittance 22a of the blue color filter 22 is symmetrical with respect to the wavelength as shown in FIG. 4, and therefore the peak wavelength of the spectral transmittance 22a of the blue color filter 22 is the center wavelength. It matches.
　シートホルダ１９は、図２に示すように略筒体であって、模様シート１８をキートップ１２の背面に押し付けて保持するものである。シートホルダ１９は、キートップ１２の背面に取り付けられる。 The sheet holder 19 is a substantially cylindrical body as shown in FIG. 2 and holds the pattern sheet 18 against the back surface of the key top 12. The sheet holder 19 is attached to the back surface of the key top 12.
　２色LED１６は、赤色光（第１可視光）と緑色光（第２可視光）を選択的に出射可能な２色タイプのLEDであって、図６に示す制御部５０に接続されている。本実施形態における２色LED１６の発光特性を図４に示している。図４において、２色LED１６が出射した赤色光の発光特性は、符号１６ａの二点鎖線で示している。一方、２色LED１６が出射した緑色光の発光特性は、符号１６ｂの二点鎖線で示している。 The two-color LED 16 is a two-color LED capable of selectively emitting red light (first visible light) and green light (second visible light), and is connected to the control unit 50 shown in FIG. . The light emission characteristics of the two-color LED 16 in this embodiment are shown in FIG. In FIG. 4, the emission characteristic of red light emitted from the two-color LED 16 is indicated by a two-dot chain line 16a. On the other hand, the emission characteristic of the green light emitted from the two-color LED 16 is indicated by a two-dot chain line 16b.
　本実施形態において、２色LED１６が出射する赤色光のドミナント波長は、６００～７５０ｎｍの赤色帯域内であり、具体的には６４０ｎｍ（第１波長）である。したがって、２色LED１６が出射する赤色光のピーク波長は６４０ｎｍである。同様に、本実施形態において、２色LED１６が出射する緑色光のドミナント波長は、５００～５７５ｎｍの緑色帯域内であり、具体的には５２０ｎｍ（第２波長）である。したがって、２色LED１６が出射する緑色光のピーク波長は５２０ｎｍである。そして、本実施形態において、２色LED１６が出射する赤色光の分光分布と、２色LED１６が出射する緑色光の分光分布は、図４に示すように波長に関して一部重複している。 In this embodiment, the dominant wavelength of red light emitted from the two-color LED 16 is in the red band of 600 to 750 nm, specifically 640 nm (first wavelength). Therefore, the peak wavelength of red light emitted from the two-color LED 16 is 640 nm. Similarly, in the present embodiment, the dominant wavelength of the green light emitted from the two-color LED 16 is in the green band of 500 to 575 nm, specifically 520 nm (second wavelength). Therefore, the peak wavelength of the green light emitted from the two-color LED 16 is 520 nm. In the present embodiment, the spectral distribution of the red light emitted from the two-color LED 16 and the spectral distribution of the green light emitted from the two-color LED 16 partially overlap with each other as shown in FIG.
　モーメンタリスイッチ１７は、キートップ１２の進退動作に応じて操作されるモーメンタリ型のスイッチであって、図６に示す制御部５０に接続されている。 The momentary switch 17 is a momentary switch that is operated in accordance with the advance / retreat operation of the key top 12, and is connected to the control unit 50 shown in FIG.
（制御部５０）
　図６に示すように、制御部５０は、CPU５１（Central Processing Unit）、RAM５２（Random Access Memory）、ROM５３（Read Only Memory）とを備えている。CPU５１は、中央演算器である。RAM５２は、読み書き自由の記憶手段である。ROM５３は、読み込み専用の記憶手段である。ROM５３には、制御プログラムが記憶されている。この制御プログラムは、CPU５１によって読み込まれ、CPU５１上で実行されることで、CPU５１等のハードウェアを、通話制御部５４、点灯制御部５５（点灯制御手段）として機能させる。また、制御部５０には、運転者が所持する携帯電話機５６が予め接続されている。 (Control unit 50)
As shown in FIG. 6, the control unit 50 includes a CPU 51 (Central Processing Unit), a RAM 52 (Random Access Memory), and a ROM 53 (Read Only Memory). The CPU 51 is a central arithmetic unit. The RAM 52 is a readable / writable storage means. The ROM 53 is a read-only storage unit. The ROM 53 stores a control program. The control program is read by the CPU 51 and executed on the CPU 51, thereby causing the hardware such as the CPU 51 to function as the call control unit 54 and the lighting control unit 55 (lighting control means). In addition, a mobile phone 56 possessed by the driver is connected to the control unit 50 in advance.
　通話制御部５４は、携帯電話機５６への着呼や、携帯電話機５６からの発呼等を制御する。 The call control unit 54 controls incoming calls to the mobile phone 56, outgoing calls from the mobile phone 56, and the like.
　点灯制御部５５は、２色LED１６に赤色光又は緑色光を選択的に出射させる。 The lighting control unit 55 causes the two-color LED 16 to selectively emit red light or green light.
　本実施形態において、照明装置は、２色LED１６（第１光源、第２光源）と、模様シート１８（遮光層）、点灯制御部５５（点灯制御手段）を少なくとも備えて構成されている。 In the present embodiment, the lighting device includes at least a two-color LED 16 (first light source, second light source), a pattern sheet 18 (light-shielding layer), and a lighting control unit 55 (lighting control means).
（作動）
　次に、図７を参照しつつ、ユーザーインターフェース１の作動を説明する。 (Operation)
Next, the operation of the user interface 1 will be described with reference to FIG.
　先ず、運転者がイグニッションキーをACC（Accessories）の位置まで回すと（S300）、点灯制御部５５は２色LED１６に緑色光を出射させる（S301）。すると、図４においてハッチングの左側部分で示すように、緑色光の分光分布１６ｂのうち、波長に関して青色系カラーフィルタ２２の分光透過率２２ａと重複する成分が青色系カラーフィルタ２２を通過する。従って、このとき、黒色系で半透明のキートップ１２には、オフフック状態をイメージした受話器の模様が若干青みがかった緑色で照らし出される。一方で、図４におけるハッチングの右側部分で示すように、緑色光の分光分布１６ｂのうち、波長に関して赤色系カラーフィルタ２１の分光透過率２１ａと重複する成分が赤色系カラーフィルタ２１を通過する。しかしながら、その重複する成分は僅かであり、運転者は、黒色系で半透明のキートップ１２を介してオンフック状態をイメージした受話器の模様を視認することはできない。 First, when the driver turns the ignition key to the position of ACC (Accessories) (S300), the lighting control unit 55 causes the two-color LED 16 to emit green light (S301). Then, as shown in the left part of hatching in FIG. 4, a component of the green light spectral distribution 16 b that overlaps with the spectral transmittance 22 a of the blue color filter 22 with respect to the wavelength passes through the blue color filter 22. Accordingly, at this time, the black-colored and translucent key top 12 is illuminated with a slightly bluish green pattern of the handset that looks like an off-hook state. On the other hand, as shown in the right part of hatching in FIG. 4, a component overlapping the spectral transmittance 21 a of the red color filter 21 with respect to the wavelength in the spectral distribution 16 b of green light passes through the red color filter 21. However, there are few overlapping components, and the driver cannot visually recognize the pattern of the handset that looks like an on-hook state through the black and translucent key top 12.
　話を戻すと、携帯電話機５６への着呼もなく（S302:NO）、携帯電話機５６からの発呼もない（S303:NO）場合は、点灯制御部５５は２色LED１６に緑色光を出射させ続ける（S301）。 When talking back, if there is no incoming call to the mobile phone 56 (S302: NO) and no outgoing call from the mobile phone 56 (S303: NO), the lighting control unit 55 emits green light to the two-color LED 16 Continue (S301).
（着信時）
　携帯電話機５６への着信があったら（S302:YES）、点灯制御部５５は、２色LED１６に緑色光を断続的に出射させる（S304）。すると、通話ボタン１１のキートップ１２には、オフフック状態をイメージした受話器の模様が断続的に照らし出される。そして、通話制御部５４は、運転者によって通話ボタン１１が押されるのを待機する（S305:NO）。運転者が通話ボタン１１を押したら（S305:YES）、点灯制御部５５は２色LED１６に赤色光を出射させる（S306）。そして、運転者は図示しないマイクロフォンやスピーカを介して通話を開始する（S307）。なお、このとき、図５においてハッチングで示すように、赤色光の分光分布１６ａのうち、波長に関して赤色系カラーフィルタ２１の分光透過率２１ａと重複する成分が赤色系カラーフィルタ２１を通過する。従って、このとき、黒色系で半透明のキートップ１２には、オンフック状態をイメージした受話器の模様が赤色で照らし出される。一方で、赤色光の分光分布１６ａのうち、波長に関して青色系カラーフィルタ２２の分光透過率２２ａと重複する成分が青色系カラーフィルタ２２を通過する。しかしながら、その重複する成分は極めて僅かであり、運転者は、黒色系で半透明のキートップ１２を介してオフフック状態をイメージした受話器の模様を視認することはできない。 (When receiving a call)
When there is an incoming call to the mobile phone 56 (S302: YES), the lighting control unit 55 causes the two-color LED 16 to emit green light intermittently (S304). As a result, the key top 12 of the call button 11 is intermittently illuminated with the pattern of the handset in the image of the off-hook state. Then, the call control unit 54 waits for the driver to press the call button 11 (S305: NO). When the driver presses the call button 11 (S305: YES), the lighting control unit 55 causes the two-color LED 16 to emit red light (S306). And a driver | operator starts a telephone call via the microphone and speaker which are not shown in figure (S307). At this time, as indicated by hatching in FIG. 5, a component overlapping the spectral transmittance 21 a of the red color filter 21 with respect to the wavelength in the spectral distribution 16 a of the red light passes through the red color filter 21. Therefore, at this time, the black-colored and translucent key top 12 is illuminated in red with the pattern of the handset that is in the image of the on-hook state. On the other hand, of the spectral distribution 16 a of red light, a component that overlaps with the spectral transmittance 22 a of the blue color filter 22 with respect to the wavelength passes through the blue color filter 22. However, the overlapping components are very small, and the driver cannot visually recognize the pattern of the handset that looks like an off-hook state via the black-colored and translucent key top 12.
　話を戻すと、通話制御部５４は、運転者の通話中、運転者によって通話ボタン１１が押されるのを待機する（S308:NO）。そして、通話終了に伴い運転者が通話ボタン１１を押したら（S308:YES）、点灯制御部５５は、再び、２色LED１６に緑色光を出射させる（S301）。これにより、黒色系で半透明のキートップ１２には、オフフック状態をイメージした受話器の模様が再び、若干青みがかった緑色で照らし出される。 When the speech is returned, the call control unit 54 waits for the driver to press the call button 11 during the driver's call (S308: NO). When the driver presses the call button 11 at the end of the call (S308: YES), the lighting control unit 55 causes the two-color LED 16 to emit green light again (S301). As a result, the black and semi-transparent key top 12 is illuminated with a slightly bluish green again in the pattern of the handset that looks like an off-hook state.
（発呼時）
　携帯電話機５６への着信がなくても（S302:NO）、運転者が通話ボタン１１を押したら（S303:YES）、点灯制御部５５は、２色LED１６に赤色光を出射させる（S309）。これにより、黒色系で半透明のキートップ１２には、オンフック状態をイメージした受話器の模様が赤色で照らし出される。そして、運転者は通話を開始する（S310）。通話制御部５４は、運転者の通話中、運転者によって通話ボタン１１が押されるのを待機する（S311:NO）。 (When calling)
Even if there is no incoming call to the cellular phone 56 (S302: NO), when the driver presses the call button 11 (S303: YES), the lighting control unit 55 causes the two-color LED 16 to emit red light (S309). As a result, the black-colored and translucent key top 12 is illuminated in red with the pattern of the handset that looks like an on-hook state. Then, the driver starts a call (S310). The call control unit 54 waits for the driver to press the call button 11 during the driver's call (S311: NO).
　通話終了に伴い運転者が通話ボタン１１を押したら（S311:YES）、点灯制御部５５は、再び、２色LED１６に緑色光を出射させる（S301）。これにより、黒色系で半透明のキートップ１２には、オフフック状態をイメージした受話器の模様が再び、若干青みがかった緑色で照らし出される。 When the driver presses the call button 11 at the end of the call (S311: YES), the lighting control unit 55 causes the two-color LED 16 to emit green light again (S301). As a result, the black and semi-transparent key top 12 is illuminated with a slightly bluish green again in the pattern of the handset that looks like an off-hook state.
　以上に本願発明の好適な実施形態を説明したが、上記実施形態の技術的意義を以下に詳しく説明する。 Although the preferred embodiments of the present invention have been described above, the technical significance of the above embodiments will be described in detail below.
（技術背景）
　カラーフィルタの分野における技術常識としては、ドミナント波長が異なる２つの可視光を選択的に出射したときに異なるイメージを演出しようとする場合、特許文献１の段落番号００３３で指摘されているように、２つの可視光のドミナント波長を極力離すようにしている。例えば特許文献１では、赤色発光ダイオードと青色発光ダイオードが採用されており、これらが出射する可視光を所定の波長（５００ｎｍ）で線引きするロングパスフィルタとショートパスフィルタが用いられている。 (Technical background)
As common technical knowledge in the field of color filters, when it is intended to produce different images when two visible lights having different dominant wavelengths are selectively emitted, as pointed out in paragraph No. 0033 of Patent Document 1, The dominant wavelengths of the two visible lights are separated as much as possible. For example, in Patent Document 1, a red light emitting diode and a blue light emitting diode are employed, and a long pass filter and a short pass filter that draw visible light emitted by these at a predetermined wavelength (500 nm) are used.
（課題）
　しかしながら、上記実施形態のように可視光の中でドミナント波長が比較的近い２つの可視光を使用することとした場合、これらの可視光をある波長で線引きすることは難しい。なぜなら、安価に入手可能なLED光源は、レーザ発振器と異なり、特定の波長のみで構成される可視光を出射することができず、分光分布の帯域幅が広がり、どうしても２つの可視光の分光分布が波長に関し重複してしまうからである。従って、例えば図８に示すように赤色光を透過させる赤色系カラーフィルタと、緑色光を透過させる緑色系カラーフィルタを用意した場合、以下のような問題が生じる。即ち、赤色光を出射した際、本来であれば、赤色光は緑色系カラーフィルタによって遮光されるべきであるものの、赤色光のうち図８においてハッチングで示す成分が緑色系カラーフィルタを透過してしまう。そしてこの結果、図３に示す模様シート１８について言えば、オンフック状態の受話器の模様（赤色系カラーフィルタ２１）のみを照らし出そうとしても、意に反して、オフフック状態の受話器の模様（青色系カラーフィルタ２２）も照らし出されてしまう。同様に、オフフック状態の受話器の模様（青色系カラーフィルタ２２）のみを照らし出そうとしても、意に反して、オンフック状態の受話器の模様（赤色系カラーフィルタ２１）も照らし出されてしまう。このように、可視光の中でドミナント波長が比較的近い２つの可視光を遮光フィルタで選択的に遮光することは従来、非常に難しかった。 (Task)
However, when two visible lights having relatively close dominant wavelengths are used in the visible light as in the above embodiment, it is difficult to draw these visible lights at a certain wavelength. This is because, unlike a laser oscillator, an LED light source that can be obtained at low cost cannot emit visible light consisting of only a specific wavelength, and the bandwidth of the spectral distribution is widened. This is because there is an overlap in wavelength. Therefore, for example, as shown in FIG. 8, when a red color filter that transmits red light and a green color filter that transmits green light are prepared, the following problems occur. That is, when the red light is emitted, the red light should be shielded by the green color filter, but the component indicated by hatching in FIG. 8 of the red light is transmitted through the green color filter. End up. As a result, in the case of the pattern sheet 18 shown in FIG. 3, when trying to illuminate only the pattern of the handset in the on-hook state (red color filter 21), the pattern of the handset in the off-hook state (blue-colored) The color filter 22) is also illuminated. Similarly, trying to illuminate only the pattern of the handset in the off-hook state (blue color filter 22) unintentionally illuminates the pattern of the handset in the on-hook state (red color filter 21). Thus, it has been very difficult in the past to selectively shield two visible lights having relatively close dominant wavelengths in the visible light with the light shielding filter.
（上記実施形態の構成）
　これに対し、照明装置は、２色LED１６（第１光源、第２光源）と、模様シート１８（遮光層）と、点灯制御部５５（点灯制御手段）とを備えている。２色LED１６は、赤色光と緑色光を出射する。模様シート１８は、遮光部２０と、赤色系カラーフィルタ２１と、青色系カラーフィルタ２２とを有する。遮光部２０は、赤色光と緑色光を遮光する。赤色系カラーフィルタ２１は、赤色光を透過させるためのものである。青色系カラーフィルタ２２は、緑色光を透過させるためのものである。点灯制御部５５は、２色LED１６に赤色光又は緑色光を選択的に出射させるためのものである。そして、図４及び図５に示すように、青色系カラーフィルタ２２の分光透過率２２ａの重心波長は、緑色光のピーク波長を挟んで赤色光のピーク波長と反対側（即ち、緑色光のピーク波長よりも短波長側）となるように設定されている。 (Configuration of the above embodiment)
On the other hand, the illuminating device includes a two-color LED 16 (first light source, second light source), a pattern sheet 18 (light shielding layer), and a lighting control unit 55 (lighting control means). The two-color LED 16 emits red light and green light. The pattern sheet 18 includes a light shielding unit 20, a red color filter 21, and a blue color filter 22. The light shielding unit 20 shields red light and green light. The red color filter 21 is for transmitting red light. The blue color filter 22 is for transmitting green light. The lighting control unit 55 is for selectively emitting red light or green light to the two-color LED 16. As shown in FIGS. 4 and 5, the centroid wavelength of the spectral transmittance 22a of the blue color filter 22 is opposite to the peak wavelength of the red light across the peak wavelength of the green light (that is, the peak of the green light). The wavelength is set to be shorter than the wavelength.
　以上の構成によれば、図５に示すように、赤色光のうち波長が緑色光のピーク波長に近い成分が、青色系カラーフィルタ２２を透過してしまうのを抑制することができる。従って、可視光の中で波長（ドミナント波長）が比較的近い２つの可視光（赤色光、緑色光）であっても選択的に一方を遮光できるようになる。 According to the above configuration, as shown in FIG. 5, it is possible to suppress a component of red light having a wavelength close to the peak wavelength of green light from being transmitted through the blue color filter 22. Therefore, even two visible lights (red light and green light) having relatively close wavelengths (dominant wavelengths) in visible light can be selectively shielded.
　また、図４及び図５に示すように、赤色系カラーフィルタ２１の分光透過率２１ａの重心波長は、赤色光のピーク波長を挟んで緑色光のピーク波長と反対側（即ち、赤色光のピーク波長よりも長波長側）となるように設定されている。以上の構成によれば、図４に示すように、緑色光のうち波長が赤色光のピーク波長に近い成分が、赤色系カラーフィルタ２１を透過してしまうのを抑制することができる。従って、可視光の中で波長が比較的近い２つの可視光を、一層確実に選択的に遮光できるようになる。 As shown in FIGS. 4 and 5, the center wavelength of the spectral transmittance 21a of the red color filter 21 is opposite to the peak wavelength of green light across the peak wavelength of red light (that is, the peak of red light). The wavelength is set to be longer than the wavelength. According to the above configuration, as shown in FIG. 4, it is possible to suppress a component of green light whose wavelength is close to the peak wavelength of red light from being transmitted through the red color filter 21. Therefore, it becomes possible to more selectively and selectively shield two visible lights having relatively close wavelengths among visible lights.
　また、上記実施形態のように赤色光の分光分布１６ａと、緑色光の分光分布１６ｂが波長に関して一部重複していると、赤色光と緑色光を選択的に遮光することが一層困難となることから、可視光の中で波長が比較的近い２つの可視光を選択的に遮光する上記の技術が一層重宝されることになる。 Further, if the spectral distribution 16a of red light and the spectral distribution 16b of green light partially overlap with respect to the wavelength as in the above embodiment, it becomes more difficult to selectively block red light and green light. For this reason, the above-described technique for selectively blocking two visible lights having wavelengths that are relatively close to each other in the visible light is more useful.
　また、模様シート１８は、スモークフィルタとしてのキートップ１２で覆われている。以上の構成によれば、２色LED１６が完全に消灯しているときに、赤色系カラーフィルタ２１及び青色系カラーフィルタ２２の存在が外部から視認し難くなる。 The pattern sheet 18 is covered with a key top 12 as a smoke filter. According to the above configuration, it is difficult to visually recognize the presence of the red color filter 21 and the blue color filter 22 from the outside when the two-color LED 16 is completely turned off.
　以上に本願発明の好適な実施形態を説明したが、上記実施形態は、例えば以下のように変更することができる。 The preferred embodiment of the present invention has been described above, but the above embodiment can be modified as follows, for example.
　上記実施形態では、ドミナント波長が異なる２つの可視光を選択的に出射可能な２色LED１６を採用している。しかし、２色LED１６に代えて、別体に設けられた赤色光を出射する赤色LEDと緑色光を出射する緑色LEDを採用することができる。 In the above embodiment, the two-color LED 16 capable of selectively emitting two visible lights having different dominant wavelengths is employed. However, instead of the two-color LED 16, a red LED that emits red light and a green LED that emits green light, which are provided separately, can be employed.
　また、上記実施形態では、図４及び図５に示すように、青色系カラーフィルタ２２の分光透過率２２ａの重心波長を、緑色光のピーク波長を挟んで赤色光のピーク波長と反対側（即ち、緑色光のピーク波長よりも短波長側）となるように設定している。しかし、これに代えて、青色系カラーフィルタ２２の透過波長域を、赤色光の分光波長域に対して重複しないように設定することとしてもよい。ただし、「透過波長域」とは、透過率が５％以上となる波長帯域と定義する。また、「分光波長域」とは、比エネルギーが５％以上となる波長帯域と定義する。 In the above embodiment, as shown in FIGS. 4 and 5, the center wavelength of the spectral transmittance 22a of the blue color filter 22 is opposite to the peak wavelength of the red light (that is, the peak wavelength of the green light). The wavelength is set to be shorter than the peak wavelength of green light. However, instead of this, the transmission wavelength range of the blue color filter 22 may be set so as not to overlap with the spectral wavelength range of red light. However, the “transmission wavelength region” is defined as a wavelength band in which the transmittance is 5% or more. The “spectral wavelength region” is defined as a wavelength band in which the specific energy is 5% or more.
　また、上記実施形態では、図４及び図５に示すように、赤色系カラーフィルタ２１の分光透過率２１ａの重心波長を、赤色光のピーク波長を挟んで緑色光のピーク波長と反対側（即ち、赤色光のピーク波長よりも長波長側）となるように設定している。しかし、これに代えて、赤色系カラーフィルタ２１の透過波長域を、緑色光の分光波長域に対して重複しないように設定することとしてもよい。 In the above embodiment, as shown in FIGS. 4 and 5, the center wavelength of the spectral transmittance 21 a of the red color filter 21 is opposite to the peak wavelength of green light (that is, the peak wavelength of red light is sandwiched) (that is, The wavelength is set to be longer than the peak wavelength of red light. However, instead of this, the transmission wavelength range of the red color filter 21 may be set so as not to overlap the spectral wavelength range of green light.
　以上、添付図面を参照しながら本発明の好適な実施形態について説明したが、本発明はかかる実施形態に限定されないことは言うまでもない。当業者であれば、特許請求の範囲に記載された範疇において、各種の変更例または修正例に想到し得ることは明らかであり、それらについても当然に本発明の技術的範囲に属するものと了解される。 The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to such embodiments. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Is done.
　なお、本明細書のユーザーインターフェース１の作動として挙げた各処理は、必ずしもフローチャートとして記載された順序に沿って時系列に処理する必要はなく、並列的あるいはサブルーチンによる処理を含んでもよい。 It should be noted that each process listed as the operation of the user interface 1 in this specification does not necessarily have to be processed in time series in the order described in the flowchart, and may include processes in parallel or by a subroutine.
１　ユーザーインターフェース
２　パネル部
１１　通話ボタン
１２　キートップ
１６　２色LED
１８　模様シート
１９　シートホルダ
２１　赤色系カラーフィルタ
２２　青色系カラーフィルタ 1 User Interface 2 Panel 11 Call Button 12 Key Top 16 2 Color LED
18 Pattern sheet 19 Sheet holder 21 Red color filter 22 Blue color filter

Claims (10)

  1. ドミナント波長が第１波長である第１可視光を出射する第１光源と、
    ドミナント波長が前記第１波長と異なる第２波長である第２可視光を出射する第２光源と、
    前記第１可視光及び前記第２可視光を遮光する遮光部と、前記第１可視光を透過させるための第１透過部と、前記第２可視光を透過させるための第２透過部とを有する遮光層と、
    前記第１光源と前記第２光源を選択的に点灯させる点灯制御手段と、
    を備え、
    前記第２透過部の分光透過率の重心波長は、前記第２可視光のピーク波長を挟んで前記第１可視光のピーク波長と反対側となるように設定される、
    照明装置。     A first light source that emits first visible light having a dominant wavelength of the first wavelength;
    A second light source that emits second visible light having a dominant wavelength that is a second wavelength different from the first wavelength;
    A light shielding portion for shielding the first visible light and the second visible light, a first transmission portion for transmitting the first visible light, and a second transmission portion for transmitting the second visible light. A light shielding layer having,
    Lighting control means for selectively lighting the first light source and the second light source;
    With
    The center-of-gravity wavelength of the spectral transmittance of the second transmission part is set to be opposite to the peak wavelength of the first visible light across the peak wavelength of the second visible light.
    Lighting device.
  2. 請求項１に記載の照明装置であって、
    前記第１透過部の分光透過率の重心波長は、前記第１可視光のピーク波長を挟んで前記第２可視光のピーク波長と反対側となるように設定される、
    照明装置。     The lighting device according to claim 1,
    The center-of-gravity wavelength of the spectral transmittance of the first transmission part is set to be opposite to the peak wavelength of the second visible light across the peak wavelength of the first visible light.
    Lighting device.
  3. 請求項１又は２に記載の照明装置であって、
    前記第１可視光の分光分布と、前記第２可視光の分光分布は、一部重複している、
    照明装置。     The lighting device according to claim 1 or 2,
    The spectral distribution of the first visible light and the spectral distribution of the second visible light partially overlap.
    Lighting device.
  4. ドミナント波長が第１波長である第１可視光を出射する第１光源と、
    ドミナント波長が前記第１波長と異なる第２波長である第２可視光を出射する第２光源と、
    前記第１可視光及び前記第２可視光を遮光する遮光部と、前記第１可視光を透過させるための第１透過部と、前記第２可視光を透過させるための第２透過部とを有する遮光層と、
    前記第１光源と前記第２光源を選択的に点灯させる点灯制御手段と、
    を備え、
    前記第１可視光の分光分布と、前記第２可視光の分光分布は、一部重複しており、
    前記第２透過部の透過波長域は、前記第１可視光の分光波長域に対して重複しないように設定される、
    照明装置。     A first light source that emits first visible light having a dominant wavelength of the first wavelength;
    A second light source that emits second visible light having a dominant wavelength that is a second wavelength different from the first wavelength;
    A light shielding portion for shielding the first visible light and the second visible light, a first transmission portion for transmitting the first visible light, and a second transmission portion for transmitting the second visible light. A light shielding layer having,
    Lighting control means for selectively lighting the first light source and the second light source;
    With
    The spectral distribution of the first visible light and the spectral distribution of the second visible light partially overlap,
    The transmission wavelength region of the second transmission part is set so as not to overlap with the spectral wavelength region of the first visible light.
    Lighting device.
  5. 請求項４に記載の照明装置であって、
    前記第１透過部の透過波長域は、前記第２可視光の分光波長域に対して重複しないように設定される、
    照明装置。     The lighting device according to claim 4,
    The transmission wavelength region of the first transmission part is set so as not to overlap with the spectral wavelength region of the second visible light.
    Lighting device.
  6. 請求項１～５の何れかに記載の照明装置であって、
    前記遮光層は、スモークフィルタで覆われている、
    照明装置。     The lighting device according to any one of claims 1 to 5,
    The light shielding layer is covered with a smoke filter,
    Lighting device.
  7. 請求項１～６の何れかに記載の照明装置であって、
    前記遮光層は、シート状に形成されている、
    照明装置。     The lighting device according to any one of claims 1 to 6,
    The light shielding layer is formed in a sheet shape,
    Lighting device.
  8. 請求項１～７の何れかに記載の照明装置であって、
    前記第１波長は、６００～７５０ｎｍの赤色帯域内である、
    照明装置。     The lighting device according to any one of claims 1 to 7,
    The first wavelength is in a red band of 600 to 750 nm.
    Lighting device.
  9. 請求項８に記載の照明装置であって、
    前記第２波長は、５００～５７５ｎｍの緑色帯域内である、
    照明装置。     The lighting device according to claim 8,
    The second wavelength is in a green band of 500 to 575 nm.
    Lighting device.
  10. 請求項９に記載の照明装置であって、
    前記第２透過部の分光透過率の重心波長は、４５０～５１０ｎｍの青色帯域内である、
    照明装置。     The lighting device according to claim 9,
    The center-of-gravity wavelength of the spectral transmittance of the second transmission part is within a blue band of 450 to 510 nm.
    Lighting device.
PCT/JP2011/075594 2010-12-28 2011-11-07 Lighting device WO2012090589A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-291445 2010-12-28
JP2010291445A JP2012137700A (en) 2010-12-28 2010-12-28 Lighting system

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WO2012090589A1 true WO2012090589A1 (en) 2012-07-05

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08129350A (en) * 1994-11-02 1996-05-21 Yazaki Corp Multiple display device
JP2008276004A (en) * 2007-05-01 2008-11-13 Calsonic Kansei Corp Variable display structure
JP2008304669A (en) * 2007-06-07 2008-12-18 Calsonic Kansei Corp Variable display structure
JP2009092993A (en) * 2007-10-10 2009-04-30 Omron Corp Display filter and display module having display filter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010217716A (en) * 2009-03-18 2010-09-30 Victor Co Of Japan Ltd Electronic equipment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08129350A (en) * 1994-11-02 1996-05-21 Yazaki Corp Multiple display device
JP2008276004A (en) * 2007-05-01 2008-11-13 Calsonic Kansei Corp Variable display structure
JP2008304669A (en) * 2007-06-07 2008-12-18 Calsonic Kansei Corp Variable display structure
JP2009092993A (en) * 2007-10-10 2009-04-30 Omron Corp Display filter and display module having display filter

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