A kind of anti-blue light desk lamp
Technical field
The present invention relates to the desk lamp field, particularly a kind of have an anti-blue light desk lamp that reduces the blue light outgoing.
Background technology
Now eye-protecting desk lamp on the market generally is conceived to the following aspects and reaches the eyeshield effect:
1, eliminates the light fixture stroboscopic; 2, avoid high light direct projection eye; 3, eliminate the shade that hand, head etc. cause; 4, correct faulty sitting posture by the sensor warning; 5, provide background illumination, create the long sight condition.The scheme of being taked in the above-mentioned prior art is easing eyes fatigue to a certain degree all, reaches the eyeshield effect.
Yet the WHO of the World Health Organization likes that eye association announces: cause global blind above 30000 people every year because of blue ray radiation in 2006 to 2008.Show according to ophthalmology branch of Chinese Medical Association data: in China 4.2 hundred million netizens, 63.5% netizen has eyesight decline, cataract, eye illness in various degree such as blind because of blue light, radiation.Existing studies show that is exposed in one day in the high strength blue light light for a long time, will increase the weight of macula retinae district disease, cause the eyeground damage of postcataract, cause the dimness of vision and dazzle, and suppress epiphysin secretion, bother sleep, increased the incidence of human body self major disease.
In recent years, the LED technical development is rapid, and the New LED lighting source replaces conventional lighting source just gradually with its energy-saving and environmental protection, advantage such as durable, with the LED lighting source as the desk lamp light source.And illumination white LED light source commonly used, produce white light after exciting yellow fluorescent powder by blue-ray LED, its curve of spectrum is unsmooth, and particularly the peak value of blue wave band is apparently higher than natural daylight or incandescent lamp, the white-light spectrum medium blue light ratio that obtains is heavy more, and strong excessively blue light has harm to human eye.
Publication number is the LED desk lamp that the Chinese invention patent application of CN101235945A discloses a kind of light color adjustable, comprises: a pedestal comprises a switching device and a tunable arrangement; One linkage unit is located on this pedestal; One cover body is connected in this linkage unit; And the led module of at least one light color adjustable, be located at this cover body, the led module of each light color adjustable comprises: a packaging body and be located at a blue-light LED chip and a red LED chip in this packaging body, and this packaging body comprises a packing colloid, and this packing colloid has yellow fluorescent material.Though this technical scheme is by adding a red LED chip to the led module of being located on the desk lamp that emits white light, the white light that utilizes the tunable arrangement driving red LED chip on the desk lamp to make desk lamp project originally again switches to warm white, reaches photochromic adjustable effect.But, the warm white that the LED desk lamp of this light color adjustable sends, blue light does not reduce, and still can't reduce the harm of blue light to human eye.
Desk lamp eyeshield scheme of the prior art all reckons without the harm that blue light causes human eye, the Lights section is not made obvious improvement, so can't avoid the harm of blue light to human eye.
Summary of the invention
The present invention is directed to the problem that exists in the technical scheme that eye-protecting desk lamp is taked in the prior art, a kind of anti-blue light desk lamp is provided, can reduce the blue light ingredient in the light beam of the outside outgoing of desk lamp, thereby reach the purpose of eyeshield.
A kind of anti-blue light desk lamp comprises pedestal, linkage unit, is installed in the led light source that has the lampshade of opening and be positioned at described lampshade on the described pedestal by described linkage unit, and the inner surface of described lampshade is provided with the blue light absorption layer.
In the anti-blue light desk lamp of the present invention, the blue light absorption layer is set on the inner surface of lampshade, the projected area that mainly is led light source on the inner surface of lampshade is provided with the blue light absorption layer, the blue light absorption layer can absorb the blue light ingredient in the led light source outgoing beam, blue light ingredient in the light beam of the outside outgoing of whole desk lamp is reduced greatly, thereby reduce to enter the blue light of eye, avoid eye is worked the mischief, reach the eyeshield purpose.
As preferably, described lampshade is a concave shaped, is hollow form, and the inner surface of described lampshade is a reflecting curved surface, by the reflecting curved surface of lampshade inner surface the led light source uniform irradiation is gone out, and simultaneously, is convenient to control the direction of emergent ray.
As preferably, described led light source comprises blue-light LED chip and is coated in yellow fluorescent powder on the described blue-light LED chip.Absorb the material of blue light in the described blue light absorption layer, be lower than 30%, visible light is higher than 90% greater than the reflectivity of the above wave band of 600nm for the beam reflection rate of 440nm in the visible light~480nm scope.Absorb the material of blue light in the described blue light absorption layer, can select yellow uitramarine for use, specifically can select the Nanoptek YellowTM yellow uitramarine of Nanoptek company development for use.Blue-light LED chip+yellow fluorescent powder is the main implementation that realizes white light LEDs in the prior art, and the blue-light excited yellow fluorescent powder that sends by blue-light LED chip obtains white light, technology maturation, with low cost and effect is better.But owing to obtain in the mode of white light by blue-light excited yellow fluorescent powder, the white-light spectrum medium blue light ratio that obtains is heavy more, and strong excessively blue light has harm to human eye, therefore, the blue light absorption layer is set also specifically selects the material of suitable absorption blue light for use, this material that absorbs blue light is lower for the reflectivity of blue wave band, and it is higher for the reflectivity of its all band of visible light, guarantee when absorbing blue light, not influence reflection, the luminous energy of all the other wave bands is utilized effectively other wave band light beams.
As preferably, be fixed with lamp plate in the described lampshade, described led light source is installed on the described lamp plate, led light source is fixed on the lamp plate, and after the inner surface reflection of the light beam of led light source outgoing through lampshade, outgoing is to light fixture, blue light absorption layer on the inner surface of lampshade absorbs the blue light ingredient in the led light source outgoing beam, blue light ingredient in the light beam of the outside outgoing of whole desk lamp is reduced greatly, thereby reduce to enter the blue light of eye, avoid eye is worked the mischief.
Led light source is installed on the lamp plate, can be further preferred according to the beam direction of the outgoing of led light source:
One, described led light source is provided with the cambered surface reflector that described led light source outgoing beam is reflexed to lampshade inner surface towards the opening setting of described lampshade in the described lampshade.This led light source is towards the opening setting of lampshade; by the cambered surface reflector beam reflection is arrived lampshade inner surface; make the light source outgoing beam directly not penetrate from the lampshade opening part; blue light absorption layer on the lampshade inner surface absorbs the blue light ingredient in the led light source outgoing beam, thereby can play the effect of protection eyes well.
Two, described led light source is a LED light-emitting particles and a side that is positioned at described lamp plate, and the side that described lamp plate has a LED light-emitting particles is the opening of described lampshade dorsad.Have directionality (single face is luminous) because of led light source is luminous, adopt led light source luminous towards the inner surface of lampshade, light beam is incident upon the lampshade inner surface that is provided with the blue light absorption layer, again after the lampshade inner surface reflection from the outgoing of lampshade opening part; Promptly earlier the led light source outgoing beam is carried out blue light absorption, make the light beam outgoing after the filtration again, thereby reduce to enter the blue light of eye, can play the effect of protection eyes well.
Further preferred, described lamp plate is strip and the inside that is erected at described lampshade, and this reflective structure is convenient to control the direction of emergent ray, and can illumination even.The strip light grillage is located at the inside of lampshade, can be used in logical light, and this structure can be taken into account the fixing of lamp plate simultaneously and reduce stopping emergent ray as far as possible.Further preferred again, described lamp plate is Y font or cross.The strip lamp plate of Y font and decussate texture all can steady rest be located at the inside of lampshade, has taken into account to reduce the stopping of emergent ray improved the percent of pass of emergent ray in fixed L ED light-emitting particles.
Further preferred, described lamp plate is annular and the inner surface that abuts against described lampshade, and this reflective structure is convenient to control the direction of emergent ray, and can illumination even.Have through hole in the middle of the annular lamp plate, be used for logical light, this structure can be taken into account the fixing of lamp plate simultaneously and reduce stopping emergent ray as far as possible.
Compared with prior art, the present invention has following advantage:
Anti-blue light desk lamp of the present invention; the inner surface of lampshade is provided with the blue light absorption layer; the led light source outgoing beam is carried out blue light filter, reduce the blue light outgoing; the blue light absorption layer can absorb the blue light ingredient in the led light source outgoing beam; blue light ingredient in the light beam of the outside outgoing of whole desk lamp is reduced greatly; help protecting human eye to avoid blue light harm, play the effect of protection eyes.Anti-blue light desk lamp of the present invention has simple in structure, energy-conservation, low cost and other advantages simultaneously, helps market-oriented promotion and application, has broad application prospects.
Anti-blue light desk lamp of the present invention; in the optimized technical scheme; led light source is towards the opening setting of lampshade; by the cambered surface reflector beam reflection is arrived lampshade inner surface; blue light absorption layer on the lampshade inner surface absorbs the blue light ingredient in the led light source outgoing beam, can play the effect of protection eyes well.Led light source is a LED light-emitting particles and a side that is positioned at lamp plate, the side that lamp plate has a LED light-emitting particles is the opening of lampshade dorsad, lamp plate is Y font, cross or annular, can take into account the fixing of lamp plate simultaneously and reduce as far as possible the stopping of emergent ray improved the percent of pass of emergent ray.
Description of drawings
Fig. 1 is the structural representation of the anti-blue light desk lamp of the embodiment of the invention one;
Fig. 2 is for selecting for use Nanoptek Yellow weld as the reflectivity schematic diagram of the material that absorbs blue light to sunshine in the anti-blue light desk lamp of the embodiment of the invention one;
Fig. 3 is the lampshade internal structure schematic diagram of the anti-blue light desk lamp of the embodiment of the invention two;
Fig. 4 is the lampshade internal structure schematic diagram of the anti-blue light desk lamp of the embodiment of the invention three.
The specific embodiment
Below in conjunction with accompanying drawing anti-blue light desk lamp of the present invention is described in further detail.
Embodiment one
As shown in Figure 1, be a kind of anti-blue light desk lamp, the led light source 3 that comprises pedestal 8, linkage unit 9, has the lampshade 2 of opening 1 and be positioned at lampshade 2, lampshade 2 is installed on the pedestal 8 by linkage unit 9, and promptly an end of linkage unit 9 is installed on the pedestal 8, and the other end of linkage unit 9 is equipped with lampshade 2, lampshade 2 is a concave shaped, be hollow form, the inner surface 6 of lampshade 2 is a reflecting curved surface, and the inner surface 6 of lampshade 2 is provided with the blue light absorption layer.
Led light source 3 comprises blue-light LED chip and is coated in yellow fluorescent powder on the blue-light LED chip; Absorb the material of blue light in the blue light absorption layer, be lower than 30%, visible light is higher than 90% greater than the reflectivity of the above wave band of 600nm for the beam reflection rate of 440nm in the visible light~480nm scope.The material that absorbs blue light in the blue light absorption layer specifically can be selected the Nanoptek Yellow of Nanoptek company development for use
TMYellow uitramarine, Fig. 2 are the reflectivity schematic diagram of this yellow uitramarine to sunshine, and as shown in Figure 2, this yellow uitramarine is attached most importance to except that dark blue zone the absorption region, all the other more than 90% the zone be non-absorption region, the efficiency of light energy utilization is higher.
Be fixed with lamp plate 7 in the lampshade 2, led light source 3 is installed on the lamp plate 7, led light source 3 is provided with towards the opening 1 of lampshade 2, is provided with the cambered surface reflector 4 that led light source 3 outgoing beams is reflexed to lampshade 2 inner surfaces 6 in the lampshade 2, the reflecting surface 5 of the light emission direction of led light source 3 on cambered surface reflector 4.
Anti-blue light desk lamp of the present invention, the light beam of led light source 3 outgoing shines earlier on the cambered surface reflector 4, reflex on lampshade 2 inner surfaces 6 through the reflecting surface 5 on the cambered surface reflector 4, after 6 reflections of lampshade 2 inner surfaces, outgoing is to light fixture, blue light absorption layer on the inner surface 6 of lampshade 2 absorbs the blue light ingredient in led light source 3 outgoing beams, blue light ingredient in the light beam of the outside outgoing of whole desk lamp is reduced greatly, thereby reduce to enter the blue light of eye, avoid eye is worked the mischief, reach the eyeshield purpose.This anti-blue light desk lamp outgoing beam is less to human eye harm, is applicable to the application scenario that needs the long-time light-illuminating and the operation of bending over the desk.
After the present invention is provided with the blue light absorption layer, the emergent ray medium blue light ratio of anti-blue light desk lamp of the present invention is heavy obviously to descend, the standard that meets " the photoproduction thing security of GBT20145-2006 lamp and lamp system " fully, after tested, under the situation of exposure time 5h, it still is lower than the retina blue light and endangers the spoke limit value that exposes to the sun, and can very well prevent the retina fire damage, thereby reach the purpose of eyeshield.
Embodiment two
As shown in Figure 3, be another kind of anti-blue light desk lamp, be that with the different of embodiment 1 led light source 3 is installed in the structure on the lamp plate 7, other are all identical with embodiment one.
Led light source 3 is for the LED light-emitting particles and be positioned at a side of lamp plate 7, and the side that lamp plate 7 has a LED light-emitting particles is the opening 1 of lampshade 2 dorsad.Lamp plate 7 is strip and the inside that is erected at lampshade 2, and lamp plate 7 is Y font or cross, is the Y font among Fig. 3.
Anti-blue light desk lamp of the present invention, the light beam of led light source 3 outgoing shines earlier on lampshade 2 inner surfaces 6, after 6 reflections of lampshade 2 inner surfaces, outgoing is to light fixture, the strip lamp plate 7 of Y font structure has been taken into account in fixed L ED light-emitting particles and has been reduced stopping emergent ray, improved the percent of pass of emergent ray, blue light absorption layer on the inner surface 6 of lampshade 2 absorbs the blue light ingredient in led light source 3 outgoing beams, blue light ingredient in the light beam of the outside outgoing of whole desk lamp is reduced greatly, thereby reduce to enter the blue light of eye, avoid eye is worked the mischief, reach the eyeshield purpose.
After the present invention is provided with the blue light absorption layer, the emergent ray medium blue light ratio of anti-blue light desk lamp of the present invention is heavy obviously to descend, the standard that meets " the photoproduction thing security of GBT20145-2006 lamp and lamp system " fully, after tested, under the situation of exposure time 5h, it still is lower than the retina blue light and endangers the spoke limit value that exposes to the sun, and can very well prevent the retina fire damage, thereby reach the purpose of eyeshield.
Embodiment three
As shown in Figure 4, be another kind of anti-blue light desk lamp, be that with the different of embodiment 1 led light source 3 is installed in the structure on the lamp plate 7, other are all identical with embodiment one.
Led light source 3 is for the LED light-emitting particles and be positioned at a side of lamp plate 7, and the side that lamp plate 7 has a LED light-emitting particles is the opening 1 of lampshade 2 dorsad.Lamp plate 7 is for annular and near on the inner surface 6 that is fixed on lampshade 2.
Anti-blue light desk lamp of the present invention, the light beam of led light source 3 outgoing shines earlier on lampshade 2 inner surfaces 6, after 6 reflections of lampshade 2 inner surfaces, outgoing is to light fixture, annular lamp plate 7 can be taken into account the fixing of lamp plate 7 simultaneously and reduce stopping emergent ray as far as possible, blue light absorption layer on the inner surface 6 of lampshade 2 absorbs the blue light ingredient in led light source 3 outgoing beams, blue light ingredient in the light beam of the outside outgoing of whole desk lamp is reduced greatly, thereby reduce to enter the blue light of eye, avoid eye is worked the mischief, reach the eyeshield purpose.
After the present invention is provided with the blue light absorption layer, the emergent ray medium blue light ratio of anti-blue light desk lamp of the present invention is heavy obviously to descend, the standard that meets " the photoproduction thing security of GBT20145-2006 lamp and lamp system " fully, after tested, under the situation of exposure time 5h, it still is lower than the retina blue light and endangers the spoke limit value that exposes to the sun, and can very well prevent the retina fire damage, thereby reach the purpose of eyeshield.
The above-described specific embodiment has been described in detail technical scheme of the present invention and beneficial effect; be understood that the above only is most preferred embodiment of the present invention; be not limited to the present invention; all any modifications of in principle scope of the present invention, being made, replenish and be equal to replacement etc., all should be included within protection scope of the present invention.