CN103116197A - Single-free-form-surface thick lens with short-distance uniform light effect and array thereof - Google Patents
Single-free-form-surface thick lens with short-distance uniform light effect and array thereof Download PDFInfo
- Publication number
- CN103116197A CN103116197A CN2013100389231A CN201310038923A CN103116197A CN 103116197 A CN103116197 A CN 103116197A CN 2013100389231 A CN2013100389231 A CN 2013100389231A CN 201310038923 A CN201310038923 A CN 201310038923A CN 103116197 A CN103116197 A CN 103116197A
- Authority
- CN
- China
- Prior art keywords
- array
- lens
- thick lens
- light
- free form
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Planar Illumination Modules (AREA)
Abstract
The invention provides a single-free-form-surface thick lens with short-distance uniform light effect and an array thereof, and relates to the technical field of secondary optical elements of light sources such as cold cathode fluorescence lamps and LEDs. One surface of the lens is an optionally set curved surface while the other surface of the lens is a free-form surface. In a second optical element, front surfaces and rear surfaces of the lens and the array thereof refract light to control a travelling direction of the light, and thicknesses of the lens and the array determine offset of the light in a radial direction of the lens, so that after emitted light of light sources such as a cold cathode fluorescence lamp and an LED passes the lens, energy on a test surface is specific in spatial distribution, and angle of divergence of reshaped light beams can be partially controlled. The lens and the array thereof can reshape the emitted light of the light sources such as the cold cathode fluorescence lamp and the LED to obtain the light beams excellent in directivity and uniformity. By applying the lens and the array to the fields of backlights of side-disturbance-free uniform lighting and liquid crystal display and the like, lighting effect can be improved remarkably, and uniform light distance is shortened.
Description
Technical field
The present invention relates to the technical field of the secondary optics element of the light sources such as LED, more specifically, relate to a kind of single free form surface thick lens and array thereof with the even light effect of short distance.
Background technology
In the fields such as general lighting and public demonstration, conventional light source (as cold-cathode fluorescence lamp etc.) and new type light source (as LED etc.) have very widely and use.Recent years, along with the development of lcd technology and the maturation of Related product, cold-cathode fluorescence lamp and LED are used as the backlight in liquid crystal display more and more.Especially LED, as light source of new generation, its volume is little, the life-span is long, colour rendering is good, power consumption is little, luminescence efficiency is high, the theory that more meets current environmental protection, thereby its range of application is from the status indicator lamp of initial electronic installation, be extended to gradually subsequently general lighting (as auto lamp, street lamp etc.) and public demonstration (as traffic lights, large LED display screen etc.), nowadays large-area flat-plate show and portable demonstration field in have extremely huge application potential.
Yet, comprising the various light sources of cold-cathode fluorescence lamp and LED, its radiant light all has certain angular distribution and space distribution, and therefore, during all used, corresponding optics light distribution element was essential above-mentioned.Wherein, can obtain lens and the most basic light distribution element of array conduct thereof of Uniform Illumination, also be widely used in various occasions by large quantity research.But these devices can only obtain Uniform Illumination mostly in long-distance large-range, and namely the beam divergence angle from this class device outgoing is large, and required even electrical distance is long.If these deficiencies have seriously limited its application in LCD backlight shows, its reason is: liquid crystal panel is not high to the transmitance of wide-angle incident light, therefore the too greatly significantly reduction of capacity usage ratio of beam divergence angle; The oversize miniaturization that is unfavorable for display module of required even electrical distance is difficult to obtain ultrathin products; In particular application (show as outdoor high brightness illumination, certain viewing angles shows, Uniform Illumination etc. in the solid space scope), the angular distribution of beam energy there is harsher requirement, these class lens also can't satisfy.
For the problems referred to above, the present invention proposes a kind of thick lens and array thereof with single free form surface.Utilize it to carry out shaping to the radiant light of the light sources such as cold-cathode fluorescence lamp and LED, at the even light effect of the interior acquisition of very short distance, and part controls the degree of divergence of light beam, thereby can be used on the field such as backlight of special lighting, liquid crystal display.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of secondary optics element, utilize this secondary optics element to carry out shaping to the radiant light of the light sources such as cold-cathode fluorescence lamp and LED, to obtain all satisfactory light beams of direction and energy distribution, improve illuminating effect, shorten simultaneously even electrical distance.
In order to reach above-mentioned purpose, the invention provides a kind of single free form surface thick lens and array thereof with the even light effect of short distance, one surface is for setting curved surface, and another surface is free form surface; The refraction that the front and rear surfaces of described thick lens and array thereof the is controlled light direction of namely advancing, its thickness determines the side-play amount that light makes progress in the lens footpaths, thereby make the radiant light of light source after these lens, be shaped as the light beam that energy has particular spatial distribution on test surface, the angular distribution of energy also can partly be controlled.
Wherein, the setting surface of described thick lens and array thereof is the curved surface of plane, sphere, parabola or other Set arbitrarilies.
Wherein, the free form surface surface of described thick lens and array thereof is according to Flux conservation law and refraction law, by the common free form surface that determines of various parameters of light beam after light source, described setting surface and required shaping.
Wherein, the front surface of described thick lens and array thereof can be all that plane of refraction or part partly are reflecting surface for plane of refraction.
Wherein, described thick lens and array thereof adopt Fresnel lens structure, and namely front and rear surfaces is stepped ramp type.
Wherein, the bore shape of described thick lens is a kind of in circle, rectangle, polygon and arbitrary curve, the distance between distance, thick lens thickness, thick lens rear surface and energy detection face between angular range, light source and the thick lens front surface of caliber size and the source light that will collect and the required relating to parameters such as spot size.
Wherein, when light source was point source of light as LED, the face type of described thick lens was Rotational Symmetry; When light source is during as cathode fluorescent tube thread, the face type of described thick lens is the translation symmetry.
Wherein, the lighting source of described thick lens and array thereof is a kind of in cathode fluorescent tube, LED light source.
Wherein, the lighting source of described thick lens and array thereof has lambert's type or other the luminous intensity distribution that can survey arbitrarily.
Wherein, the beam divergence angle after described thick lens and array shaping thereof is relevant with even electrical distance with the physical dimension of light source, minimum is controlled at ± 1 ° in.
Wherein, has specific space distribution in the test surface of beam energy in desired certain position after described thick lens and array shaping thereof, after this detection plane is placed in thick lens and array thereof, with thick lens and array rear surface thereof can reach 0.5mm apart from minimum value, maximal value is unrestricted.
Wherein, through the beam size after described thick lens and array shaping thereof and after the light spot shape on test surface is by described aperture of lens and described shaping the angular distribution of light beam jointly determine.
Wherein, described thick lens array adopt that rectangular arranged, hexagonal are arranged, a kind of in the triangle arrangement array mode.
Wherein, the material of described thick lens and array thereof is selected from: a kind of in crown glass, flint glass, silica glass material perhaps is selected from a kind of in methacrylate resin, acrylate resin, polystyrene resin, polycarbonate resin, copolymer of methyl methacrylatestyrene, acrylonitritrile-styrene resin and polyethylene terephthalate organic resin material.
According to such scheme, the shaping effect of secondary optics element provided by the present invention is significant.Described lens and array thereof can carry out shaping to the radiant light of the light sources such as cathode fluorescent tube and LED, make the light beam after shaping just can form required energy distribution on the test surface of distance lens rear surface very near (grade), namely even electrical distance is greatly shortened; Because the directivity of light beam also can partly be controlled, thus in the application of lens arra, significantly reduced crosstalking between each lens, thus realize large-area Uniform Illumination.In addition, the method for designing of these lens is simple, need not to find the solution partial differential equation, just can directly obtain the concrete face type of lens by separating binary biquadratic equation group, is fit to very much current injection moulding manufacturing technology.
Description of drawings
Fig. 1 is the principle schematic (being that the plane is as example take the lens front surface) that single free-form surface lens that the present invention proposes is realized beam shaping;
Fig. 2 is space distribution and the angular distribution of light beam energy on test surface after single free-form surface lens shaping;
Fig. 3 is single free-form surface lens and the shaping effect thereof with Fresnel structure that the present invention proposes;
Fig. 4 is the light path schematic diagram that single free-form surface lens array that the present invention proposes is realized beam shaping;
Fig. 5 is distribution space and the angular distribution of light beam energy on test surface after the shaping of lens arra described in Fig. 4;
Wherein, mark in figure: 1 is light source, and 2 is single free-form surface lens, and 3 is the energy detection face.
Embodiment
For making the present invention more clear, hereby coordinate drawings and Examples, be elaborated.
The single free-form surface lens of embodiment 1 is realized beam shaping
Fig. 1 is the principle schematic that single free-form surface lens proposed by the invention is realized beam shaping, comprises the single free-form surface lens 2 of the known light source of a characteristics of luminescence 1,, and its front surface is set as plane 21, and the rear surface is free form surface 22, and an energy detection face 3.The light that sends from light source 1 reflects through former and later two surfaces 21 and 22 of lens 2 successively, finally arrives test surface 3.Wherein the concrete face type of free form surface 22 is according to Flux conservation law and refraction law, determines by the various parameters of light beam after the characteristics of luminescence of light source 1, the face type of setting surface 21 and specified shaping etc. are common.Significant at this thickness that it needs to be noted lens 2, this parameter has determined the transversal displacement of generation when the light of front surface 21 refractions is propagated in lens 2, thereby make the energy of light beam be redistributed, finally have required energy distribution when 22 outgoing arrive test surface 3 from the rear surface.
In Fig. 1, lens front surface 21 for setting curved surface, be set as the plane for reducing difficulty of processing, but lens 2 structures is not limited to this: set curved surface and can adopt sphere, parabola or other arbitrary face types; Also can allow the rear surface be to set curved surface, and front surface is free form surface.
By regulating the distance between distance, lens center thickness, lens rear surface 22 and the test surface 3 between light source 1 and lens front surface 21, can optimize the dispersion angle of light beam after shaping, it is the angular distribution of energy, can also make simultaneously device parameters be fit to processing, meet concrete environment for use.
For the lens arrangement in Fig. 1, when light source 1 is that a light-emitting area is that square, the luminous intensity of 1mm * 1mm is when being distributed as the LED of lambert's type, having formed radius on the detection plane 3 at 2mm place, distance lens rear surface is the uniform light spots of 8mm, and concrete energy two-dimensional space distributes and the one dimension at the center of mistake distributes respectively as Fig. 2 (a) with (b); The energy two dimension angular distributes and the one dimension at the center of mistake distributes respectively as Fig. 2 (c) with (d).The homogeneity that represents with the energy contrast is about (I
max-I
min)/(I
max+ I
min)=0.09, the light beam angle of divergence after the lens shaping is ± 3.6 °.So the little angle of divergence make hot spot on all detection plane of distance lens rear surface 0.5mm to 3.5mm the energy contrast all below 0.1, thereby can increase significantly the tolerance of rigging error.
After the bore of lens and shaping, the shape of hot spot is not only limited to circle, can also be rectangle or other shapes.
The processing of these lens can be selected mechanical milling, compression moulding etc.
For reducing lens thickness, alleviate lens quality, reduce material consumption, shorten even electrical distance, lens can adopt Fresnel structure, as shown in Fig. 3 (a), (b) are the solid modelling figure of its circular bore.At this moment, the thickness of lens can be less than 3mm, when light source is that a light-emitting area is square, the luminous intensity of 1mm * 1mm when being distributed as the LED of lambert's type, on the test surface of distance light source 10.5mm, just can obtain the energy contrast and be about (I
max-I
min)/(I
max+ I
minThe hot spot of)=0.08, energy two-dimensional space distribute and the one dimension at the center of mistake distributes respectively as Fig. 3 (c) and (d).All adopt on any one or two surfaces that Fresnel structure can be in front and rear surfaces.
In the lens of pure refraction structure, the wide-angle incident ray can produce in the reflection of lens front surface the loss that is difficult to bear, if adopt the composite structured of plane of refraction and reflecting surface at the front surface of lens, can improve energy utilization efficiency.
The single free-form surface lens array of embodiment 3 is realized beam shaping
If a plurality of lens are combined the formation lens arra according to certain arrangement mode, the radiant light of array of source with aligned identical mode is carried out shaping, can obtain larger lighting area, perhaps improve brightness of illumination, dwindle even electrical distance.
Fig. 4 is the light path schematic diagram that 2 * 2 lens arras of rectangular arranged are realized beam shaping, and at this moment, the bore of each lens is no longer circular, but rectangle.This lens arra can be distributed as lambert's type to square, the luminous intensity that 2 * 2LED(light-emitting area is 1mm * 1mm) light that sends of array realizes shaping, Fig. 5 (a) and the two-dimensional space that (b) has provided respectively light spot energy on the detection plane distributes and the one dimension at the center of mistake distributes, its energy contrast is about (I
max-I
min)/(I
max+ I
min)=0.10; (c) and (d) being respectively that two dimension angular distributes and the one dimension at the center of mistake distributes, the angle of divergence is about ± and 6.4 °.Wherein, (a) there are a plurality of little hot spots at the edge of middle rectangular light spot, and this is to crosstalk to produce, and namely the wide-angle radiant light of each LED is collected by the shaping lens corresponding with it, but projection is converged after entering contiguous shaping lens.The crosstalk angle of light of this part is about 45 °, is far longer than the angle of divergence of main spot, therefore can disregard in a lot of its impacts of occasion; If necessary, can this is crosstalked reduces even to eliminate by applying diaphragm or changing front surface structure (front surface is concave curved surface or refraction reflection compound curved surface).
The arrangement mode of lens arra is not only limited to rectangular arranged, can also be that hexagonal (cellular) is arranged or other permutation and combination methods; Just, the bore of lens and the shape of hot spot also will correspondingly change hexagon or other shapes at this moment.
These embodiment scioptics and array thereof have been realized the shaping to the LED light source radiant light, adopt secondary optics element simple in structure, have obtained the splendid large area lighting effect of energy uniformity and directivity in very short even electrical distance.
Below by reference to the accompanying drawings the specific embodiment of the present invention is described; but these explanations can not be understood to limit scope of the present invention; protection scope of the present invention is limited by the claims of enclosing, and any change on claim of the present invention basis is all protection scope of the present invention.
Claims (14)
1. single free form surface thick lens and the array thereof with the even light effect of short distance, is characterized in that, one surface is for setting curved surface, and another surface is free form surface; The refraction that the front and rear surfaces of described thick lens and array thereof the is controlled light direction of namely advancing, its thickness determines the side-play amount that light makes progress in the lens footpaths, thereby make the radiant light of light source after these lens, be shaped as the light beam that energy has particular spatial distribution on test surface, the angular distribution of energy also can partly be controlled.
2. single free form surface thick lens and the array thereof with the even light effect of short distance according to claim 1, is characterized in that, the setting surface of described thick lens and array thereof is the curved surface of plane, sphere, parabola or other Set arbitrarilies.
3. single free form surface thick lens and the array thereof with the even light effect of short distance according to claim 2, it is characterized in that, the free form surface surface of described thick lens and array thereof is according to Flux conservation law and refraction law, by the common free form surface that determines of various parameters of light beam after light source, described setting surface and required shaping.
4. single free form surface thick lens and the array thereof with the even light effect of short distance according to claim 1, is characterized in that, the front surface of described thick lens and array thereof can be all that plane of refraction or part partly are reflecting surface for plane of refraction.
5. single free form surface thick lens and the array thereof with the even light effect of short distance according to claim 1, is characterized in that, described thick lens and array thereof adopt Fresnel lens structure, and namely front and rear surfaces is stepped ramp type.
6. single free form surface thick lens and the array thereof with the even light effect of short distance according to claim 1, it is characterized in that, the bore shape of described thick lens is a kind of in circle, rectangle, polygon and arbitrary curve, the various relating to parameters of light beam after the distance between distance, thick lens thickness, thick lens rear surface and energy detection face between angular range, light source and the thick lens front surface of caliber size and the source light that will collect and required shaping.
7. single free form surface thick lens and the array thereof with the even light effect of short distance according to claim 1, is characterized in that, when light source was point source of light as LED, the face type of described thick lens was Rotational Symmetry; When light source is during as cathode fluorescent tube thread, the face type of described thick lens is the translation symmetry.
8. single free form surface thick lens and the array thereof with the even light effect of short distance according to claim 1, is characterized in that, the lighting source of described thick lens and array thereof is a kind of in cathode fluorescent tube, LED light source.
9. single free form surface thick lens and the array thereof with the even light effect of short distance according to claim 1, is characterized in that, the lighting source of described thick lens and array thereof has lambert's type or other luminous intensity that can survey arbitrarily distributes.
10. single free form surface thick lens and the array thereof with the even light effect of short distance according to claim 1, it is characterized in that, beam divergence angle after described thick lens and array shaping thereof is relevant with even electrical distance with the physical dimension of light source, minimum is controlled at ± 1 ° in.
11. single free form surface thick lens and the array thereof with the even light effect of short distance according to claim 1, it is characterized in that, has specific space distribution in the test surface of beam energy in desired certain position after described thick lens and array shaping thereof, after this detection plane is placed in thick lens and array thereof, with thick lens and array rear surface thereof can reach 0.5mm apart from minimum value, maximal value is unrestricted.
12. single free form surface thick lens and the array thereof with the even light effect of short distance according to claim 1, it is characterized in that, through the beam size after described thick lens and array shaping thereof and the light spot shape on test surface by aperture of lens claimed in claim 6 with by shaping claimed in claim 10 after the angular distribution of light beam jointly determine.
13. single free form surface thick lens and the array thereof with the even light effect of short distance according to claim 1 is characterized in that, described thick lens array adopts that rectangular arranged, hexagonal are arranged, a kind of in the triangle arrangement array mode.
14. single free form surface thick lens and the array thereof with the even light effect of short distance according to claim 1, it is characterized in that, the material of described thick lens and array thereof is selected from: a kind of in crown glass, flint glass, silica glass material perhaps is selected from a kind of in methacrylate resin, acrylate resin, polystyrene resin, polycarbonate resin, methyl methacrylate-styrol copolymer, vinyl cyanide-styrol copolymer and polyethylene terephthalate organic resin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100389231A CN103116197A (en) | 2013-01-31 | 2013-01-31 | Single-free-form-surface thick lens with short-distance uniform light effect and array thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100389231A CN103116197A (en) | 2013-01-31 | 2013-01-31 | Single-free-form-surface thick lens with short-distance uniform light effect and array thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103116197A true CN103116197A (en) | 2013-05-22 |
Family
ID=48414623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100389231A Pending CN103116197A (en) | 2013-01-31 | 2013-01-31 | Single-free-form-surface thick lens with short-distance uniform light effect and array thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103116197A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104210362A (en) * | 2013-06-04 | 2014-12-17 | 株式会社电装 | Vehicular display apparatus |
| CN106443869A (en) * | 2016-12-09 | 2017-02-22 | 四川云盾光电科技有限公司 | Light equalizing plate based on micro-nano structure |
| WO2017092665A1 (en) * | 2015-11-30 | 2017-06-08 | 深圳市光峰光电技术有限公司 | Lighting device |
| CN112503434A (en) * | 2020-12-01 | 2021-03-16 | 浙江光锥科技有限公司 | Method for generating lens structure capable of freely distributing light within 48 degrees and lens structure |
| WO2021093669A1 (en) * | 2019-11-11 | 2021-05-20 | 苏州欧普照明有限公司 | Lighting device and lighting system |
| CN112882230A (en) * | 2019-11-29 | 2021-06-01 | 宁波舜宇车载光学技术有限公司 | Optical system and method for eliminating color fringes |
| CN114294611A (en) * | 2022-01-11 | 2022-04-08 | 荣仪尚科光电技术(哈尔滨)有限公司 | Natural light homogenization lighting device and method based on free-form surface and sawtooth grating |
| CN114321818A (en) * | 2022-01-11 | 2022-04-12 | 荣仪尚科光电技术(哈尔滨)有限公司 | Array type natural light homogenization lighting device and method based on free-form surface |
| CN114321817A (en) * | 2022-01-11 | 2022-04-12 | 荣仪尚科光电技术(哈尔滨)有限公司 | Single-chip natural light homogenization lighting device and method based on lens and free-form surface |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009046920A1 (en) * | 2007-10-05 | 2009-04-16 | Limo Patentverwaltung Gmbh & Co. Kg | Device for creating a multipole illumination in a working plane, particularly for lithographic applications |
| CN101639181A (en) * | 2009-08-07 | 2010-02-03 | 广东昭信光电科技有限公司 | Direct type backlighting system |
| CN101990614A (en) * | 2008-12-16 | 2011-03-23 | 香港应用科技研究院有限公司 | Led light shaping device and illumination system |
| WO2011098515A1 (en) * | 2010-02-11 | 2011-08-18 | Ewo Srl/Gmbh | Lighting module for illuminating traffic routes, and traffic route luminaire |
| CN102537843A (en) * | 2012-01-20 | 2012-07-04 | 中国科学院上海技术物理研究所 | Secondary optical lens module |
| JP2012199161A (en) * | 2011-03-23 | 2012-10-18 | Ichikoh Ind Ltd | Vehicular lamp |
| CN102798067A (en) * | 2011-03-23 | 2012-11-28 | 株式会社小糸制作所 | Vehicular illumination lamp |
| CN202675155U (en) * | 2012-06-18 | 2013-01-16 | 深圳市绎立锐光科技开发有限公司 | Dodging device and light source system |
| CN103175095A (en) * | 2011-12-20 | 2013-06-26 | 海洋王照明科技股份有限公司 | Lens, lens group and lamp |
-
2013
- 2013-01-31 CN CN2013100389231A patent/CN103116197A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009046920A1 (en) * | 2007-10-05 | 2009-04-16 | Limo Patentverwaltung Gmbh & Co. Kg | Device for creating a multipole illumination in a working plane, particularly for lithographic applications |
| CN101990614A (en) * | 2008-12-16 | 2011-03-23 | 香港应用科技研究院有限公司 | Led light shaping device and illumination system |
| CN101639181A (en) * | 2009-08-07 | 2010-02-03 | 广东昭信光电科技有限公司 | Direct type backlighting system |
| WO2011098515A1 (en) * | 2010-02-11 | 2011-08-18 | Ewo Srl/Gmbh | Lighting module for illuminating traffic routes, and traffic route luminaire |
| JP2012199161A (en) * | 2011-03-23 | 2012-10-18 | Ichikoh Ind Ltd | Vehicular lamp |
| CN102798067A (en) * | 2011-03-23 | 2012-11-28 | 株式会社小糸制作所 | Vehicular illumination lamp |
| CN103175095A (en) * | 2011-12-20 | 2013-06-26 | 海洋王照明科技股份有限公司 | Lens, lens group and lamp |
| CN102537843A (en) * | 2012-01-20 | 2012-07-04 | 中国科学院上海技术物理研究所 | Secondary optical lens module |
| CN202675155U (en) * | 2012-06-18 | 2013-01-16 | 深圳市绎立锐光科技开发有限公司 | Dodging device and light source system |
Non-Patent Citations (1)
| Title |
|---|
| 刘传芳: "大尺寸直下式LED液晶背光系统设计与优化", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104210362A (en) * | 2013-06-04 | 2014-12-17 | 株式会社电装 | Vehicular display apparatus |
| CN104210362B (en) * | 2013-06-04 | 2017-04-12 | 株式会社电装 | Vehicular display apparatus |
| WO2017092665A1 (en) * | 2015-11-30 | 2017-06-08 | 深圳市光峰光电技术有限公司 | Lighting device |
| US10746357B2 (en) | 2015-11-30 | 2020-08-18 | Ylx Incorporated | Lighting device having polychromatic light source and optical element with light filter having through hole |
| CN106443869A (en) * | 2016-12-09 | 2017-02-22 | 四川云盾光电科技有限公司 | Light equalizing plate based on micro-nano structure |
| WO2021093669A1 (en) * | 2019-11-11 | 2021-05-20 | 苏州欧普照明有限公司 | Lighting device and lighting system |
| CN112882230A (en) * | 2019-11-29 | 2021-06-01 | 宁波舜宇车载光学技术有限公司 | Optical system and method for eliminating color fringes |
| CN112503434A (en) * | 2020-12-01 | 2021-03-16 | 浙江光锥科技有限公司 | Method for generating lens structure capable of freely distributing light within 48 degrees and lens structure |
| CN112503434B (en) * | 2020-12-01 | 2022-11-01 | 浙江光锥科技有限公司 | Method for generating lens structure capable of freely distributing light within 48 degrees and lens structure |
| CN114294611A (en) * | 2022-01-11 | 2022-04-08 | 荣仪尚科光电技术(哈尔滨)有限公司 | Natural light homogenization lighting device and method based on free-form surface and sawtooth grating |
| CN114321818A (en) * | 2022-01-11 | 2022-04-12 | 荣仪尚科光电技术(哈尔滨)有限公司 | Array type natural light homogenization lighting device and method based on free-form surface |
| CN114321817A (en) * | 2022-01-11 | 2022-04-12 | 荣仪尚科光电技术(哈尔滨)有限公司 | Single-chip natural light homogenization lighting device and method based on lens and free-form surface |
| CN114294611B (en) * | 2022-01-11 | 2023-06-30 | 荣仪尚科光电技术(哈尔滨)有限公司 | Natural light homogenizing lighting device and method based on free-form surface and sawtooth grating |
| CN114321818B (en) * | 2022-01-11 | 2023-06-30 | 荣仪尚科光电技术(哈尔滨)有限公司 | Array type natural light homogenizing lighting device and method based on free curved surface |
| CN114321817B (en) * | 2022-01-11 | 2023-06-30 | 荣仪尚科光电技术(哈尔滨)有限公司 | Single-piece type natural light homogenizing lighting device and method based on lens and free-form surface |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103116197A (en) | Single-free-form-surface thick lens with short-distance uniform light effect and array thereof | |
| CN103148443B (en) | A kind of two free form surface thick lens in order to obtain uniform parallel light beam and array thereof | |
| CN103807806B (en) | The light distributing method of the COB module LED street lamp lens in 3,5 tracks can be irradiated to | |
| CN100590346C (en) | LED road lamp | |
| CN101660706B (en) | LED lens for realizing light beam control | |
| CN101852388A (en) | Wide-angle light-distribution lens for LEDs and application thereof | |
| CN101457901A (en) | Light field controlling means and illuminating apparatus employing the light field controlling means | |
| CN102767760A (en) | Straight-down type liquid crystal television backlight module | |
| CN202581120U (en) | Light emitting diode (LED) rectangular light spot lens | |
| CN104154494A (en) | Free-form surface optical lens for ultrathin straight down type LED backlight system | |
| CN103912820A (en) | Light-emitting device and relevant display system thereof | |
| CN101684920B (en) | Optical system for LED street lamp | |
| CN101576231A (en) | Center light-splitting reflective optical unit and system, and manufacturing method thereof | |
| CN103995311B (en) | Light guide plate, backlight module and display device | |
| CN101025447A (en) | Two-face fly-eye lens | |
| CN103017084B (en) | Secondary optical lens for light emitting diode (LED) wide-angle bulb lamp and LED wide-angle bulb lamp | |
| CN106500013A (en) | Projecting Lamp lens, light emitting module and Projecting Lamp | |
| CN101561087A (en) | LED flat light source structure | |
| CN204422930U (en) | A kind of down straight aphototropism mode set and display device | |
| CN103994396A (en) | LED secondary refraction and reflection lens for direct lighting type backlight source | |
| CN101684919A (en) | Led street lamp lens | |
| CN105180095A (en) | Uniform light intensity LED reflection light emitting method based on non-imagining optics | |
| CN101210657A (en) | Linear lighting device | |
| CN201462499U (en) | LED planar light source structure | |
| CN201344423Y (en) | Street lamp adopting LEDs as light sources |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130522 |