CN102573227A - Eye protection desk lamp with light-emitting diode (LED) light source - Google Patents
Eye protection desk lamp with light-emitting diode (LED) light source Download PDFInfo
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Abstract
The invention relates to an eye protection desk lamp with a light-emitting diode (LED) light source. The eye protection desk lamp with the LED light source comprises a base, a lamp shade, a connecting body of which the two ends are respectively connected with the base and the lamp shade, a light-emitting body which is arranged in the lamp shade, a driving power supply which is electrically connected with the light-emitting body, and a control device for controlling the driving power supply. The light-emitting body is an LED combined light source and at least comprises a first sub-light source and a second sub-light source, a circadian rhythm-photopic vision (C/P) value of first sub-light source emergent light is more than 2.5, the C/P value of second sub-light source emergent light is less than 2.5, and the control device controls the C/P value of light-emitting light source emergent light to be between the C/P value of the first sub-light source emergent light and the C/P value of the second sub-light source emergent light or to be equal to one of the C/P values. The eye protection desk lamp with the LED light source has the substantial characteristics that: by controlling the intensity of the light of all the sub-light sources of the combined light source, the final total C/P value of the combined light source and the intensity of the light are controlled to change along with the variation of time, the effect of simulating natural light is achieved, and the eye protection desk lamp with the LED light source adapts to the physiological cycle variation of human bodies.
Description
Technical field
The present invention relates to a kind of eye-protecting desk lamp that adopts led light source.
Background technology
In the life, being regardless of or the like round the clock in incompatibility in changing shifts of the time difference problem of passenger in circumnavigation, night shift workman, the astronaut's space, it is incompatible to have proved that all human body lacks the caused physiology of normal natural light irradiation.
Adopting led light source to be used for illumination exists plurality of advantages and enjoys favor; Have that energy-saving and environmental protection, life-span are long, fast, the anti-switching surge of response, be prone to advantages such as luminous intensity distribution such as it, quicken to be penetrated into the room lighting field owing to the lifting of led light source light efficiency and the rapid decline of price recently.Yet GaN is that the white LED light source of chip is little and bright, and contains stronger blue spectrum.Led light source also more and more is much accounted of the pros and cons of health of human body, and between the 380-500nm of spectrum, a large amount of high energy shortwave blue lights can penetrate our crystalline lens and vitreum, directes reach the most important macular region of retina.Blue light has increased it thereby amphiblestroid damage effect has been caused the retinal function degeneration, even causes the apoptosis of photaesthesia cell.The apoptosis of photaesthesia cell will cause eyesight to descend gradually even completely lose.And the spectral-transmission characteristics of the human lens of all ages and classes section is different, and children's shortwave (near ultraviolet and blue light) transmittance is high, so high-intensity short wavelength light need to learn the desk lamp of long-term usefulness especially to note to children.
Traditional desk lamp pays close attention to mainly whether enough illumination and illumination uniformity etc. are arranged on the working face.Wherein the LED desk lamp has adopted DC power supply, has solved the stroboscopic problem of traditional desk lamp, and emergent light adopts scatter plate to improve illumination uniformity etc.But led light source is because ray cast is too concentrated, and it is tired that the long-time use of human eye is felt easily.Also there is the LED eye-protecting desk lamp can regulate colour temperature and luminosity, such as through the multi-colored led adjustable illumination that replaces single white light such as red, green, blue is installed.But the light source luminescent regulative mode of these light fixtures is directly not corresponding with the variation of department's occasion effect ratios (C/P value), can not really reflect the health requirements of human body, and the emission wavelength of LED is not had strict regulations.
There is a office dynamic context illuminator in PHILIPS Co., can regulate the white light of multiple different-colour according to the variation naturally of indoor light, through the control to lamplight brightness and colour temperature, improves people's comfort.But, and do not have direct correspondence with department occasion effect curve because same colour temperature can be by multiple spectral composition.Then these illuminating lamps are not obvious to the healthy protective effect of human eye, do not consider the health of human body from the photobiology angle.And a kind of eye-protecting desk lamp that adopts led light source of inventor invention is the basis with mediator's physiological parameter department occasion effect ratio (C/P value), and the adjusting of combination light intensity, more meets the demand of human eye to surround lighting, the health of better protection human body.
Summary of the invention
The object of the present invention is to provide a kind of eye-protecting desk lamp that adopts led light source; Its luminous element is combined into a luminous element that spectrum is variable at least two kinds of branch light sources (each minute light source emission different spectrum); Can be with control signal variation department occasion effect ratio (C/P value); Adapt to the psychological need of human body, make people's physical efficiency reach best work or resting state illumination.Simultaneously, also increased the led light source of emission specific wavelength ruddiness,, improved the metabolic function of cytochrome oxidase, promoted the improvement of retinal function, the protection eye health through the irradiation of specific wavelength ruddiness.
The present invention solves the technical scheme that the prior art problem adopted: a kind of eye-protecting desk lamp that adopts led light source,
Comprise connector that base, lampshade, two ends are connected with lampshade with base respectively, be arranged on the luminous element in the lampshade, it is characterized in that: also comprise the driving power that is electrically connected with luminous element, the control device of controlling and driving power supply;
Said luminous element is the LED combined light source, and it comprises first fen light source and second fen light source at least, described first minute radiative C/P value of light source greater than 2.5, the second fens radiative C/P values of light source less than 2.5;
Said control device output corresponds respectively to first fen light source and second fen control signal for light source; Described driving power reception control signal first fen light source of driving and second fen light source are luminous; The radiative C/P value of illuminating source is between the C/P value of C/P value and second fen light source of first fen light source, perhaps equals wherein some values.
Described LED luminous element also comprises the 3rd fen light source, and said the 3rd minute light source is that emission peak wavelength is the red-light source of 660nm-690nm.
Described lampshade is a transparent surface at leading flank and bottom surface at least; Light source comprised a light emitting module at least in said the 3rd minute; Have at least a described light emitting module to be arranged on the leading flank bright dipping of lampshade, described first minute light source and second fen light source are all from the bottom surface bright dipping of said lampshade.Corresponding such luminous element arrangement; The 3rd fen light source by-pass cock can select the light emitting module of light emitting module and/or bottom surface of leading flank luminous according to actual needs; Satisfy the demand of general lighting and people face, eyes direct irradiation, can promote the microcirculation of human body skin, improve the metabolic function of cytochrome oxidase; Promote the improvement of retinal function, the protection eye health.
Be provided with microprocessor, memory and clock circuit in the described control device, described store memory has one group of C/P value and light intensity information, promptly simulates near natural daylight information; Described microprocessor divides control signal of light source light intensity to arrive driving power according to temporal information output corresponding to each, thereby controls each minute light source light intensity, makes illuminating source form the light source with corresponding C/P value and light intensity.
In order further to improve the present invention program; Described clock circuit can be a crystal oscillator; Or the independent clock module of tape handling circuit; Wherein be provided with year, the moon, day, the time, branch, second concrete time signal, region, season parameter is set on the described memory, described microprocessor time of reception signal also combines the latitude and longitude information of region and the control signal that calculates.The memory of said control device can be that microprocessor carries or extend out.In order to prevent losing of data, described control device also comprises power failure protection module.
A kind of eye-protecting desk lamp that adopts led light source of the present invention; Then be to be on the basis of sensitization spectral position research of human eye retina's photochemical damage, form in conjunction with the characteristics design of the third photosensory cell of human body at emission spectrum to the basic blue-ray LED of gallium nitride (GaN).
Wherein, the occasion effect value C/P of department refers to take charge of the ratio of occasion effect Circadian rhythm and photopic vision Photopic vision effect, is used for estimating the power of the non-visual biological effect of light source.Wherein, department's occasion effects ratio C/P value is meant the ratio of taking charge of occasion effect Circadian rhythm and photopic vision effect Photopic vision, is used for estimating the power of the non-visual biological effect of light source.Computing formula is following:
Wherein, P (λ) is the spectral power distribution of illuminating lamp, and C (λ) is the spectral luminous efficiency curve of department's occasion effect, and V (λ) is a photopic vision spectrum light efficiency function.
There is certain incidence relation between C/P value and the light intensity.Wherein, light intensity described in the present invention and luminous intensity are not notions, and luminous intensity is the base quantity of luminosity, and light intensity only is a kind of parameter of the size of light, and light intensity can be luminous flux, luminous intensity, illuminance or brightness etc. among the present invention.
As further improving and replenishing to technique scheme; A kind of eye-protecting desk lamp that adopts led light source; Also comprise the adjuster that is arranged on the base, said adjuster is mechanical switch amount signal conditioner and/or analog signals adjuster, can be switching value adjusters such as switch, code-disc; Or analog signal adjuster such as adjustable resistor, or both combinations.The switching value signal that said control device receiver regulator produces also sends corresponding control signal to driving power, and it is luminous to drive each minute light source, makes illuminating source formation have the light source of corresponding C/P value and light intensity.
The 3rd fen light source of the 3rd fen light source by-pass cock may command in the said adjuster is luminous with first fen light source, second fen light source, or luminous separately, uses flexibly.
Be provided with receiver of remote-control sytem in the said control device; Described receiver of remote-control sytem is connected with remote control through radio wave or infrared waves signal; Said control device receives the control signal of remote control generation and sends corresponding control signal to driving power through receiver of remote-control sytem, makes luminous element have corresponding C/P value and light intensity.
Described control device is through the light intensity of pulse width modulation mode control each minute light source, and pulse duration or duty ratio are corresponding with the light intensity of each minute light source, can control the C/P value and the light intensity of illuminating source respectively.Adopt pulse-width modulation (PWM) mode to control the light intensity of each minute light source, modulating frequency is more than the 200Hz, has avoided light source stroboscopic to occur, has also guaranteed the reliability that light source uses.Pulse width modulation mode has overcome the deficiency of conventional voltage or current-modulation, can realize the modulation respectively of light source C/P value and light intensity value.The duty cycle signals ratio of light source is certain like each minute, and then the C/P value of luminous element remains unchanged, but light intensity can become along with minute increase of light source duty ratio greatly, reduce and diminish; Keep the duty ratio sum of each minute light source constant, but change mutual ratio, then the light intensity of luminous element remains unchanged, but the C/P value can change.
Be provided with mode selection switch in the described adjuster; Said pattern comprises mode of operation, rest (loosening) pattern or three kinds of selectable lighting systems of sleep pattern at least; Said control device receiving mode signal also sends corresponding control signal to driving power, control corresponding C/P value and light intensity.Need suitable blue light illumination under the mode of operation; Under rest mode, should reduce the irradiation of blue light; When the sleep in night needs to use lamp, can select sleep pattern, only launch specific red-light spectrum by the red-light LED of the 3rd fen light source.
A kind of eye-protecting desk lamp that adopts led light source; Comprise the clock that is arranged on the base; This clock output time signal is to control device; The time signal of control device receive clock output is also sent corresponding control signal to driving power, and the control luminous element is luminous, produces time dependent C/P value and light intensity value.This clock can be mechanical type or electronic type clock.
A kind of eye-protecting desk lamp that adopts led light source also comprises scatter plate, and described scatter plate is arranged on light outgoing place of luminous element, and scatter plate is used to make emergent light evenly soft, reduces the stimulation to human eye.
The present invention has outstanding substantive distinguishing features:
1, through the control combination light source each minute light source light intensity, come control combination light source final total C/P value and light intensity to change over time, reach the effect of imitative natural daylight, the cycle that adapts to Human Physiology changes.
2, mode selection switch and the 3rd fen light source by-pass cock are set and regulate and select mode of operation, rest (loosening) pattern, sleep pattern etc., more meet the demand of particular case light.
3, avoided of the injury of shortwave blue light, and the infrared light irradiation helps human eye retina's health, can promote the metabolic function of cytochrome oxidase human eye.
4, the 3rd fen light source comprises one or more light emitting modules, has at least a light emitting module to be arranged on the desk lamp leading flank, and novel structure helps the direct irradiation to human face and eyes.
Description of drawings
Below in conjunction with accompanying drawing patent of the present invention is done further explanation:
Fig. 1 is the perspective view of one embodiment of the invention.
Fig. 2 is that system of the present invention forms structural representation.
Fig. 3 is the lampshade structure sketch map of another embodiment of the present invention.
Fig. 4 is a base panel structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Embodiment 1: a kind of eye-protecting desk lamp that adopts led light source; As depicted in figs. 1 and 2; It comprises base 8, lampshade 6, two ends respectively with connector 7, the adjuster 5 of base 8 and lampshade 6; Also comprise the luminous element 1 that is arranged in the lampshade 6, the driving power 2 that is electrically connected with luminous element 1, and the control device 3 of controlling and driving power supply.Wherein driving power 2 can be in base 8, connector 7 or lampshade 6 with control device 3, and adjuster 5 is installed on the base 8.
By each minute light source be combined into one group of illuminating module, consist of the luminous element 1 of desk lamp by single group or multi-group light-emitting module.
Concrete, control device 3 is confirmed corresponding C/P value and light intensity according to the time signal of input, and through pulse width modulation mode, C/P value and light intensity is converted into the signal of telecommunication dutyfactor value output that corresponds respectively to each minute light source; Driving power 2 is according to the light intensity of duty cycle signals control each minute light source of input, and then the total C/P value and the light intensity of control luminous element 1.
Be provided with in the clock circuit 4 year, the moon, day, the time, branch, second concrete time signal; Be provided with the latitude and longitude information of region in the control device 3, the control signal of control device 3 output is: control device 3 time of reception signals and the control signal that combines the latitude and longitude information of region to calculate.
Also independent clock 4 can be set on base 8; These clock 4 output time signals are to control device 3; Control device 3 is luminous according to this time signal control luminous element 1; Produce time dependent C/P value and light intensity value, this clock 4 can be mechanical type or electronic type clock, can be with digital display screen.The 220V electric main is adopted in this desk lamp power supply.
Embodiment 2: a kind of eye-protecting desk lamp that adopts led light source, described LED luminous element 1 also comprise the 3rd fen light source, and said the 3rd minute light source is that emission peak wavelength is the red-light source of 660nm-690nm.
Specifically, first fen light source and second fen light source are white light LEDs, and the C/P value of the 3rd fen light source is zero and emission wavelength is the more excellent of 670nm.The C/P value that requires in order to reach the imitative natural daylight effect of combined light source, then one of the C/P value certainty of first fen light source and second fen light source is than higher, and promptly the relative spectral power (intensity) in the interval of 400nm to 520nm is higher; Another relatively low (even being zero).
As shown in Figure 3; Lampshade 6 is a transparent surface at leading flank and bottom surface at least; Light source comprised two light emitting module 1-31 and 1-32 in said the 3rd minute; One of them light emitting module 1-32 is arranged on the leading flank bright dipping of lampshade 6, promptly the 3rd minute light source luminous mainly from the transparent surface outgoing of leading flank, and described first minute light source and second fen light source are all from the bottom surface bright dipping of lampshade 6.Corresponding such luminous element arrangement can select the light emitting module of light emitting module and/or bottom surface of leading flank luminous according to actual needs, satisfies the demand that illumination and face shine.The leading flank of mentioning in the present patent application, bottom surface are all with respect to accompanying drawing.All the other structures are with embodiment 1.
Embodiment 3: as shown in Figure 4, the adjuster 5 that is arranged on the base 8 comprises shift knob 5-1, mode selection switch 5-2 and/or the 3rd fen light source by-pass cock 5-3.Shift knob 5-1, mode selection switch 5-2 and the 3rd fen light source by-pass cock 5-3 are electrically connected with control device 3.
That is to say that control device 3 receives three kinds of signals at least: first kind is to mention the signal of receive clock circuit or independent clock 4 among the embodiment 1 and 2; The signal of second kind of signal and the third signal difference receiving mode selector switch 5-2 and light source by-pass cock 5-3 transmission in the 3rd fen.Then control device 3 is according to three kinds of control signals; Make luminous element form the light efficiency of three kinds of forms respectively: first kind for simulating near the natural daylight effect; Second kind of light efficiency of selecting mode of operation, rest mode or sleep pattern as required, the third then controls the 3rd fen light source separately.
Specifically for instance, after desk lamp plugs in, open total shift knob 5-1, trigger control device 3, be defaulted as automatic adjusting and use pattern (being that control device 3 is worked according to the information of clock circuit output).Control device 3 is controlled the light intensity of each minute light source according to the difference of time signal, thereby regulates the total C/P value and the light intensity of luminous element 1, arrives the variation radiation response of the imitative natural daylight of simulation.At this moment, the needs manual adjustments mode selection switch 5-2 according to environment for use comes the light of selection work, rest or sleep pattern.Also can open the 3rd fen light source by-pass cock 5-3, select to open bottom surface red-light LED module 1-31 or leading flank red-light LED module 1-32 down according to the special requirement of environment for use; Perhaps will be down red-light LED module 1-31 and leading flank red-light LED module 1-32 open together, when being used for human body and need loosening, can obtain an amount of red light irradiation, help promoting the metabolism and the beauty treatment of face's cell.
Mode of operation needs suitable blue light illumination, to keep the excited state of human body, increases work efficiency, and the C/P value of its luminous element 1 is controlled at 4.5, mainly is made up of the emission light of first fen light source and second fen light source; Seeing under the relaxation state such as TV, can select rest mode, reduce the irradiation of blue light, the C/P value of its luminous element 1 is controlled at 1.5, while the 3rd fen light source red-emitting; When the sleep in night needs to use lamp, can select sleep pattern, the C/P value of luminous element 1 is controlled at 0, only opens the 3rd fen light source, and turn on light night does not influence the secretion of human body epiphysin as far as possible, conduces to sleep.
Claims (10)
1. eye-protecting desk lamp that adopts led light source; Comprise connector (7) that base (8), lampshade (6), two ends are connected with lampshade (6) with base (8) respectively, be arranged on the luminous element (1) in the lampshade (6), it is characterized in that: also comprise the driving power (2) that is electrically connected with luminous element (1), the control device (3) of controlling and driving power supply (2);
Said luminous element (1) is the LED combined light source, and it comprises first fen light source and second fen light source at least, described first minute radiative C/P value of light source greater than 2.5, the second fens radiative C/P values of light source less than 2.5;
Said control device (3) output corresponds respectively to first fen light source and second fen control signal for light source; Described driving power (2) reception control signal first fen light source of driving and second fen light source are luminous; The radiative C/P value of luminous element (1) is between the C/P value of C/P value and second fen light source of first fen light source changes, perhaps equal wherein some values.
2. a kind of eye-protecting desk lamp that adopts led light source according to claim 1 is characterized in that described LED luminous element (1) also comprises the 3rd fen light source, and said the 3rd minute light source is that emission peak wavelength is the red-light source of 660nm-690nm.
3. a kind of eye-protecting desk lamp that adopts led light source according to claim 2; It is characterized in that described lampshade (6) is a transparent surface at leading flank and bottom surface at least; Light source comprised a light emitting module at least in said the 3rd minute; Have at least a described light emitting module to be arranged on the leading flank bright dipping of lampshade (6), described first minute light source and second fen light source are all from the bottom surface bright dipping of said lampshade (6).
4. a kind of eye-protecting desk lamp that adopts led light source according to claim 1; It is characterized in that being provided with microprocessor, memory and clock circuit in the described control device (3); Described store memory has one group of C/P value and light intensity information, promptly simulates near natural daylight information; Described microprocessor divides control signal of light source light intensity to arrive driving power (2) according to temporal information output corresponding to each.
5. a kind of eye-protecting desk lamp that adopts led light source according to claim 1; It is characterized in that also comprising the adjuster (5) that is arranged on the base (8); Said adjuster (5) is mechanical switch amount signal conditioner and/or analog signals adjuster, and the switching value signal that said control device (3) receiver regulator (5) produces also sends corresponding control signal to driving power (2).
6. according to claim 3 and 5 described a kind of eye-protecting desk lamps that adopt led light source; It is characterized in that said adjuster (5) is provided with the 3rd fen light source by-pass cock (5-3); The 3rd fen light source of light source by-pass cock (5-3) control in said the 3rd minute is luminous with first fen light source, second fen light source, or luminous separately.
7. according to claim 4 or 5 described a kind of eye-protecting desk lamps that adopt led light source; It is characterized in that being provided with receiver of remote-control sytem in the described control device (3); Said receiver of remote-control sytem is connected with the remote control signal through radio wave or infrared waves signal, and said control device (3) receives the control signal of remote control generation and sends corresponding control signal to driving power (2) through receiver of remote-control sytem.
8. according to claim 4 or 5 or 7 described a kind of eye-protecting desk lamps that adopt led light source; It is characterized in that the light intensity of described control device (3) through pulse width modulation mode control each minute light source; Modulating frequency is more than the 200Hz; Pulse duration or duty ratio are corresponding with the light intensity of each minute light source, can control the C/P value and the light intensity of illuminating source (1) respectively.
9. a kind of eye-protecting desk lamp that adopts led light source according to claim 5; It is characterized in that being provided with in the described adjuster (5) mode selection switch (5-2); Said pattern comprises mode of operation, rest/relaxed mode or sleep pattern at least, and said control device (3) receiving mode signal also sends corresponding control signal to driving power (2).
10. a kind of eye-protecting desk lamp that adopts led light source according to claim 1; It is characterized in that also comprising the clock (4) that is arranged on the base (8), the time signal of said control device (3) receive clock (4) output is also sent corresponding control signal to driving power (2).
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Inventor after: Wang Jianping Inventor after: Mou Tongsheng Inventor after: Mou Xi Inventor after: Alexander Rothman Inventor before: Wang Jianping Inventor before: Mou Tongsheng |
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Effective date of registration: 20170515 Address after: 310000, 3, 6 Ting Ting Street, Qingshan Lake Street, Zhejiang, Ling'an Patentee after: Zhejiang Smart Lighting Technology Co., Ltd. Address before: 310000, Zhejiang Province, Hangzhou hi tech Zone, Xixi Road, Zhejiang Province, 525 building, Zhejiang science and Technology Park, Zhejiang Province, G Patentee before: Hangzhou Zheda Three Color Instrument Co., Ltd. |