CN203489035U - Lighting device for improving illumination uniformity - Google Patents
Lighting device for improving illumination uniformity Download PDFInfo
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- CN203489035U CN203489035U CN201320541728.6U CN201320541728U CN203489035U CN 203489035 U CN203489035 U CN 203489035U CN 201320541728 U CN201320541728 U CN 201320541728U CN 203489035 U CN203489035 U CN 203489035U
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Abstract
The utility model discloses a lighting device for improving illumination uniformity. The lighting device comprises at least two parallel LED (light-emitting diode) lamp tubes, each LED lamp tube comprises a bar lamp panel with LED particles on the surface of one side, the LED particles are symmetrically distributed on the bar lamp panels, and the intensity of the LED particles is changed from sparse to dense from the center of each bar lamp panel to two ends of the bar lamp panel. The illumination uniformity of an illumination receiving surface is improved by optimizing the arrangement density of the LED particles on the lamp tubes, and the lighting device for improving the illumination uniformity has the advantages of simple structure, convenience in machining and low cost.
Description
Technical field
The utility model relates to lighting field, is specifically related to a kind of lighting device that improves illuminance uniformity.
Background technology
Semiconductor light-emitting-diode (LED) is a kind of semiconductor that can be visible ray by electric energy conversion, it has changed the luminous principle luminous with electricity-saving lamp tricolor powder of incandescent lamp tungsten filament, and employing electroluminescence, the advantage of LED is very obvious, has that the life-span is long, light efficiency is high, an advantage such as radiationless and low-power consumption.LED has started to be widely used in the fields such as outdoor lighting, view brightening, agricultural illumination.
LED illumination is considered to one of 21 century field most with prospects, and it, also will be for promoting energy-saving and emission-reduction, set up conservation-minded society and make major contribution when causing illumination revolution.Semiconductor light-emitting-diode (LED) illumination just replaces traditional lighting industry with irresistible trend, in < < semiconductor lighting development in science and technology " 12 " ad hoc planning > >, propose, country is by the special product of supporting to have independent intellectual property right of emphasis.
In prior art, for fluorescent tube, realize the measure that Uniform Illumination takes and be generally improvement lamp tube structure, specifically comprise the improvement of the following aspects: one, the material with light diffusion property is set on lampshade, when light beam this lampshade of process (as: atomization lampshade), by scattering, mixed light, improves the uniformity; Two, improve after lampshade (reflector or lens) surface texture makes light beam without direction, different luminous powers by luminous intensity distribution and incide illumination receiving plane, the illumination iteration by illumination receiving plane evenly realizes uniform illumination; Three, optimize light source and there is the distance between scattering function lampshade, making light beam be incident to diffraction lamp shade first mixed light before, further improving the illumination uniformity.
The improvement of above-mentioned several aspects all relates to the improvement of lampshade structure, yet lampshade is generally draw piece or die casting, and the complexity that improves lampshade structure will directly cause the rising of cost of manufacture; And change lampshade surface texture (changing curvature or surface treatment) and will increase the loss of luminous energy through approach such as scattering or absorptions.
Granted publication number for CN202647278U(application number be 201220230987.2) Chinese utility model patent a kind of LED light fixture that can uniformly light-emitting is disclosed, it includes: a fluorescent tube and a circuit board, it is inner that this circuit board is located in this fluorescent tube, and on this circuit board, be laid with a plurality of LED bulbs, and this LED bulb and this circuit board are electrically connected, this LED bulb be shaped as rectangle and equidistantly oblique arrangement setting.For available technology adopting rectangle LED bulb, be arranged in parallel and have the problem that light is inhomogeneous, have dark space, this technical scheme is by arranging the equidistant oblique arrangement of rectangle LED bulb, make between light, to produce and mutually add and take advantage of when luminous, thereby make whole LED light fixture uniform illuminating, illumination effect is better and more attractive in appearance.Although by the equidistant oblique arrangement setting of rectangle LED bulb, can improve the uniformity of illumination to a certain extent,, its effect is still not ideal enough, need to further improve.
Utility model content
The utility model provides a kind of lighting device that improves illuminance uniformity for above-mentioned problems of the prior art, can improve the uniformity of illumination.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of lighting device that improves illuminance uniformity, comprise at least two LED fluorescent tubes that are set in parallel, every LED fluorescent tube comprises that a side surface is with the bar shaped lamp plate of LED light-emitting particles, described LED light-emitting particles is symmetrically distributed on described bar shaped lamp plate, and the dense degree of described LED light-emitting particles from bar shaped lamp plate center to bar shaped lamp plate two ends from sparse to dense.Adopt the form of gradual change, LED light-emitting particles is close, the middle thin formal distribution in two ends on bar shaped lamp plate.
In theory, each the LED light-emitting particles on bar shaped lamp plate forms and all has contribution the illumination of the upper any point of illumination receiving plane (being generally rectangle).If the LED light-emitting particles on bar shaped lamp plate is evenly arranged, the region in illumination receiving plane center will receive more luminous energy (illumination receiving plane center and each LED light-emitting particles nearest), reach higher illuminance; And the illumination of deep four corner areas in two ends of rectangular light photograph receiving plane will be less.In order to improve the illumination of illumination receiving plane, certainly will need to improve the illumination that rectangular light is shone the illumination of receiving plane two end regions or relatively reduced zone line, in the utility model, by the dense degree of LED light-emitting particles from bar shaped lamp plate center to bar shaped lamp plate two ends from sparse to dense, adopt close, the middle thin form in two ends, can improve rectangular light according to the illumination of receiving plane two end regions, and reduce the illumination of zone line, thereby improve this lighting device in rectangular light according to the illumination uniformity on receiving plane.The utility model, when improving the illumination uniformity, can also improve the utilization rate to luminous energy to a certain extent.
As preferably, described LED fluorescent tube is two.The occasion of two LED lighting tube combination uses is more, two fluorescent tubes, plant tissue culture chamber light filling (arranging two fluorescent tubes one deck) for illumination.
Further preferably, to be 1200 ± 10mm, spacing be that the distance of 290 ± 5mm, illumination receiving plane and described LED fluorescent tube is 300 ± 10mm to the length of two LED fluorescent tubes.The conventional length of LED fluorescent tube is generally 1200mm, and in group training light filling purposes, group training frame individual layer floor height (distance of LED fluorescent tube and illumination receiving plane) is generally 300mm.Under above-mentioned application scenario, the spacing of two LED fluorescent tubes can obtain the higher illumination uniformity when 290mm.
As preferably, described bar shaped lamp plate is evenly divided into 3 illumination work sections successively by length, and each illumination work section includes a plurality of LED light-emitting particles, and in each illumination work section, the ratio of the general power of LED light-emitting particles is 1.44 ± 10%:1:1.44 ± 10%.Described bar shaped lamp plate is evenly divided into the first illumination work section, the second illumination work section and the 3rd illumination work section successively by length, the first described illumination work section, the second illumination work section and the 3rd illumination work section include a plurality of LED light-emitting particles, and in the first described illumination work section, in the general power of LED light-emitting particles, the second illumination work section, in the general power of LED light-emitting particles, the 3rd illumination work section, the ratio of the general power of LED light-emitting particles is 1.44 ± 10%:1:1.44 ± 10%.Above-mentioned 3 illumination work sections arrange, and define the ratio of the general power of LED light-emitting particles in each illumination work section, can improve better the uniformity of illumination.
As preferably, described bar shaped lamp plate is evenly divided into 4 illumination work sections successively by length, and each illumination work section includes a plurality of LED light-emitting particles, and in each illumination work section, the ratio of the general power of LED light-emitting particles is 1.52 ± 10%:1:1:1.52 ± 10%.Described bar shaped lamp plate is evenly divided into the first illumination work section successively by length, the second illumination work section, the 3rd illumination work section and the 4th illumination work section, the first described illumination work section, the second illumination work section, the 3rd illumination work section and the 4th illumination work section include a plurality of LED light-emitting particles, the general power of LED light-emitting particles in the first described illumination work section, the general power of LED light-emitting particles in the second illumination work section, the general power of LED light-emitting particles in the 3rd illumination work section, in the 4th illumination work section, the ratio of the general power of LED light-emitting particles is 1.52 ± 10%:1:1:1.52 ± 10%.Above-mentioned 4 illumination work sections arrange, and define the ratio of the general power of LED light-emitting particles in each illumination work section, can improve better the uniformity of illumination.
As preferably, described bar shaped lamp plate is evenly divided into 5 illumination work sections successively by length, each illumination work section includes a plurality of LED light-emitting particles, and in each illumination work section, the ratio of the general power of LED light-emitting particles is 1.73 ± 10%:1.06 ± 10%:1:1.06 ± 10%:1.73 ± 10%.Described bar shaped lamp plate is evenly divided into the first illumination work section successively by length, the second illumination work section, the 3rd illumination work section, the 4th illumination work section and the 5th illumination work section, the first described illumination work section, the second illumination work section, the 3rd illumination work section, the 4th illumination work section and the 5th illumination work section include a plurality of LED light-emitting particles, the general power of LED light-emitting particles in the first described illumination work section, the general power of LED light-emitting particles in the second illumination work section, the general power of LED light-emitting particles in the 3rd illumination work section, the general power of LED light-emitting particles in the 4th illumination work section, in the 5th illumination work section, the ratio of the general power of LED light-emitting particles is 1.73 ± 10%:1.06 ± 10%:1:1.06 ± 10%:1.73 ± 10%.Above-mentioned 5 illumination work sections arrange, and define the ratio of the general power of LED light-emitting particles in each illumination work section, can improve better the uniformity of illumination.
As preferably, described bar shaped lamp plate is evenly divided into 6 illumination work sections successively by length, each illumination work section includes a plurality of LED light-emitting particles, and in each illumination work section, the ratio of the general power of LED light-emitting particles is 1.88 ± 10%:1.003 ± 10%:1:1:1.003 ± 10%:1.88 ± 10%.Described bar shaped lamp plate is evenly divided into the first illumination work section successively by length, the second illumination work section, the 3rd illumination work section, the 4th illumination work section, the 5th illumination work section and the 6th illumination work section, the first described illumination work section, the second illumination work section, the 3rd illumination work section, the 4th illumination work section, the 5th illumination work section and the 6th illumination work section include a plurality of LED light-emitting particles, the general power of LED light-emitting particles in the first described illumination work section, the general power of LED light-emitting particles in the second illumination work section, the general power of LED light-emitting particles in the 3rd illumination work section, the general power of LED light-emitting particles in the 4th illumination work section, the general power of LED light-emitting particles in the 5th illumination work section, in the 6th illumination work section, the ratio of the general power of LED light-emitting particles is 1.88 ± 10%:1.003 ± 10%:1:1:1.003 ± 10%:1.88 ± 10%.Above-mentioned 6 illumination work sections arrange, and define the ratio of the general power of LED light-emitting particles in each illumination work section, can improve better the uniformity of illumination.
Compared with prior art, the utlity model has following advantage:
The utility model improves the lighting device of illuminance uniformity, LED light-emitting particles is close, the middle thin formal distribution in two ends on bar shaped lamp plate, the density of arranging by the LED light-emitting particles on LED fluorescent tube realizes the raising to illumination receiving plane illuminance uniformity, have advantages of simple in structure, easy to process, with low costly, have broad application prospects.
Accompanying drawing explanation
Fig. 1 is a kind of general structure schematic diagram that improves the lighting device of illuminance uniformity of the utility model embodiment;
Fig. 2 is a kind of single fluorescent tube part-structure schematic diagram that improves the lighting device of illuminance uniformity of the utility model embodiment;
Fig. 3 is that the LED light-emitting particles power of the utility model embodiment a kind of lighting device of improving illuminance uniformity is by the distribution schematic diagram of LED fluorescent tube length direction;
Fig. 4 is a kind of evenly distributed Illumination Distribution comparison diagram of the relative LED light-emitting particles of lighting device that improves illuminance uniformity of the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 is a kind of general structure schematic diagram that improves the lighting device of illuminance uniformity of the utility model embodiment, the structural representation that Fig. 2 is single fluorescent tube.
A kind of lighting device that improves illuminance uniformity, comprise that two identical LED fluorescent tube 1(that are set in parallel partly omit), every LED fluorescent tube 1 comprises that a side surface is with the bar shaped lamp plate 3 of LED light-emitting particles 2, LED light-emitting particles 2 is symmetric on bar shaped lamp plate 3, and two ends are close, centre is thin, be that LED light-emitting particles 2 is symmetrically distributed on bar shaped lamp plate 3, mind-set strip light plate 3 two ends are from sparse to dense from bar shaped lamp plate 3 for the dense degree of LED light-emitting particles 2.The length of every LED fluorescent tube 1 is 1200mm, spacing between two LED fluorescent tubes 1 is 291.67mm, illumination receiving plane 4 is of a size of 1200mm * 500mm, after gridding, be divided into 12 * 100 grid cell, the distance of illumination receiving plane 4 and two LED fluorescent tube 1 place planes is 300mm, and being positioned at two illumination receiving planes 4 under LED fluorescent tube 1 is the rectangle of long 1200mm, wide 500mm.
When single LED fluorescent tube 1 is divided into three sections by length, LED light-emitting particles 2 luminous powers on every section are than being 1.44:1:1.44, and Fig. 3 is the LED light-emitting particles 2 power distribution schematic diagrams on single LED fluorescent tube 1 length direction.Fig. 4 is the Illumination Distribution contrast before and after optimizing in two fluorescent tube situations, and the LED light-emitting particles before optimizing in every fluorescent tube is uniformly distributed (between particle, being spaced apart 27.9mm), and before and after optimizing, the illumination uniformity rises to 0.78 from 0.48.
By above-described embodiment, the purpose of this utility model is by fully effective having reached.The personage who is familiar with this skill should be understood that the utility model includes but not limited to accompanying drawing and the content of describing in the specific embodiment above.Any modification that does not depart from function and structure principle of the present utility model all will be included in the scope of claims.
Claims (7)
1. a lighting device that improves illuminance uniformity, comprise at least two LED fluorescent tubes that are set in parallel, every LED fluorescent tube comprises that a side surface is with the bar shaped lamp plate of LED light-emitting particles, it is characterized in that, described LED light-emitting particles is symmetrically distributed on described bar shaped lamp plate, and the dense degree of described LED light-emitting particles from bar shaped lamp plate center to bar shaped lamp plate two ends from sparse to dense.
2. the lighting device of raising illuminance uniformity according to claim 1, is characterized in that, described LED fluorescent tube is two.
3. the lighting device of raising illuminance uniformity according to claim 2, is characterized in that, it is that the distance of 290 ± 5mm, illumination receiving plane and described LED fluorescent tube is 300 ± 10mm that the length of two LED fluorescent tubes is 1200 ± 10mm, spacing.
4. according to the lighting device of the raising illuminance uniformity described in claim 1～3 any one, it is characterized in that, described bar shaped lamp plate is evenly divided into 3 illumination work sections successively by length, each illumination work section includes a plurality of LED light-emitting particles, and in each illumination work section, the ratio of the general power of LED light-emitting particles is 1.44 ± 10%:1:1.44 ± 10%.
5. according to the lighting device of the raising illuminance uniformity described in claim 1～3 any one, it is characterized in that, described bar shaped lamp plate is evenly divided into 4 illumination work sections successively by length, each illumination work section includes a plurality of LED light-emitting particles, and in each illumination work section, the ratio of the general power of LED light-emitting particles is 1.52 ± 10%:1:1:1.52 ± 10%.
6. according to the lighting device of the raising illuminance uniformity described in claim 1～3 any one, it is characterized in that, described bar shaped lamp plate is evenly divided into 5 illumination work sections successively by length, each illumination work section includes a plurality of LED light-emitting particles, and in each illumination work section, the ratio of the general power of LED light-emitting particles is 1.73 ± 10%:1.06 ± 10%:1:1.06 ± 10%:1.73 ± 10%.
7. according to the lighting device of the raising illuminance uniformity described in claim 1～3 any one, it is characterized in that, described bar shaped lamp plate is evenly divided into 6 illumination work sections successively by length, each illumination work section includes a plurality of LED light-emitting particles, and in each illumination work section, the ratio of the general power of LED light-emitting particles is 1.88 ± 10%:1.003 ± 10%:1:1:1.003 ± 10%:1.88 ± 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320541728.6U CN203489035U (en) | 2013-08-31 | 2013-08-31 | Lighting device for improving illumination uniformity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320541728.6U CN203489035U (en) | 2013-08-31 | 2013-08-31 | Lighting device for improving illumination uniformity |
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| Publication Number | Publication Date |
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| CN203489035U true CN203489035U (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320541728.6U Expired - Fee Related CN203489035U (en) | 2013-08-31 | 2013-08-31 | Lighting device for improving illumination uniformity |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470973A (en) * | 2013-08-31 | 2013-12-25 | 普天智能照明研究院有限公司 | Illuminating apparatus and method for improving illumination uniformity |
| CN103925558A (en) * | 2014-04-30 | 2014-07-16 | 广东恒润光电有限公司 | Strip-shaped lens for LED daylight lamp and large-angle LED daylight lamp |
| CN103982859A (en) * | 2014-04-30 | 2014-08-13 | 广东恒润光电有限公司 | Lens for LED (light-emitting diode) fluorescent lamp and wide-angle LED fluorescent lamp |
| CN110314857A (en) * | 2019-05-08 | 2019-10-11 | 合肥泰禾光电科技股份有限公司 | Color sorting lamp and color selector |
-
2013
- 2013-08-31 CN CN201320541728.6U patent/CN203489035U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470973A (en) * | 2013-08-31 | 2013-12-25 | 普天智能照明研究院有限公司 | Illuminating apparatus and method for improving illumination uniformity |
| CN103470973B (en) * | 2013-08-31 | 2015-07-29 | 普天智能照明研究院有限公司 | A kind of lighting device and method improving illuminance uniformity |
| CN103925558A (en) * | 2014-04-30 | 2014-07-16 | 广东恒润光电有限公司 | Strip-shaped lens for LED daylight lamp and large-angle LED daylight lamp |
| CN103982859A (en) * | 2014-04-30 | 2014-08-13 | 广东恒润光电有限公司 | Lens for LED (light-emitting diode) fluorescent lamp and wide-angle LED fluorescent lamp |
| CN110314857A (en) * | 2019-05-08 | 2019-10-11 | 合肥泰禾光电科技股份有限公司 | Color sorting lamp and color selector |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20180831 |
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| CF01 | Termination of patent right due to non-payment of annual fee |