CN105156925A - Device for improving uniformity of light source - Google Patents
Device for improving uniformity of light source Download PDFInfo
- Publication number
- CN105156925A CN105156925A CN201510565885.4A CN201510565885A CN105156925A CN 105156925 A CN105156925 A CN 105156925A CN 201510565885 A CN201510565885 A CN 201510565885A CN 105156925 A CN105156925 A CN 105156925A
- Authority
- CN
- China
- Prior art keywords
- light source
- lens
- uniformity
- particle
- aluminium base
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
- F21V19/005—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by permanent fixing means, e.g. gluing, riveting or embedding in a potting compound
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/08—Refractors for light sources producing an asymmetric light distribution
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a device for improving uniformity of a light source. The device comprises multiple light source particles constituting the light source, wherein the multiple light source particles are arranged in the same plane at intervals, multiple lenses which are located in the same plane and have the convergence function are arranged on one side of the light source at intervals, the light source particles and the lenses are in one-to-one correspondence in position, and the diameter or the side length of each lens is smaller than or equal to the distance between every two adjacent lenses. On the basis that the size of the light source is not changed, the device for improving the uniformity of the light source can improve the effective area and the uniformity of the light source, and increases the energy utilization rate of the light source.
Description
Technical field
The present invention relates to lighting technical field, be specifically related to a kind of device promoting light source uniformity.
Background technology
In Machine Vision Detection, particularly to large format detection thing, there are two kinds of imaging schemes, one is line-scan digital camera collocation strip source, one is area array cameras collocation area source, for these light sources (mainly referring to LED light source), general uniformity is good all not, uniformity refers to that light source irradiation is to detecting on thing or the uniformity of the light-emitting area diverse location illuminance of light source, general strip source, uniformity reach more than 80% effective length (namely light source luminescent face can be actually utilized on length) generally only have less than 70% of its contour length, what have only has 50%, and area source is also same, the uniformity of area source is characterized by effective area, effective area refers to the area that the light-emitting area of light source can be actually utilized, the centre of area source and the illuminance difference at edge very large, middle illumination is generally more than the twice of edge illumination, the above-mentioned lack of homogeneity due to strip source or area source, directly causes the capacity usage ratio of this two classes light source to reduce.
And above-mentioned condition can bring a lot of problem, if want to carry out even imaging to long or more large-sized detection thing, it is larger that the length of strip source or the profile of area source will be done, and so just make the volume of light source, weight increases all thereupon, cost up.Installation and debugging aspect is also very inconvenient, especially some equipment, and practical application, user have more harsh requirement to contour size of the unit(s), placement space, and large-sized light source can introduce a lot of practical difficulty to the design of these equipment.Also have some to improve the uniformity of light source with light guide plate or the very low acrylic board of transmitance in the market, but the brightness of this light source is all very low, the scope of application is limited.
Summary of the invention
The object of the present invention is to provide a kind of device promoting light source uniformity, it can improve the effective area of light source, uniformity and capacity usage ratio on the basis not changing dimension of light source.
In order to achieve the above object, the invention provides a kind of device promoting light source uniformity, comprising multiple light source particles of composition light source, multiple described light source particle is located at same plane and is set in distance, the side of described light source is interval with and is positioned at conplane multiple lens playing convergence effect, each described light source particle and each lens position one_to_one corresponding, the diameter of described lens or the length of side are less than or equal to the distance between adjacent two lens.
Further, the spacing B between adjacent described light source particle meets: B=D+2X*tgA, and wherein D is diameter or the length of side of the hot spot of light source particle after lens, and X is light source particle and the distance detecting thing, and A is partly the decline angle of light source particle after lens.
Further, described lens and the spacing of corresponding light source particle are 0.5-2 times of the described focal length of lens.
Further, the multiple light source particles forming described light source are installed on aluminium base, and the opposite end of described aluminium base is welded with positive and negative electrode solder joint, and multiple described light source particle is interconnected by wire and is connected with positive and negative electrode solder joint.
Further, the multiple light source particles forming described light source are set at least one row.
Further, described aluminium base is connected to form by multiple aluminium base plate, and multiple described light source particle is fixed on multiple aluminium base plate.
Further, multiple described lens are installed on the level board of support body, and described aluminium base is arranged at one end of support body and parallel with level board.
Further, also comprise even tabula rasa, the opposite side of multiple lens is located at by described even tabula rasa, and described even tabula rasa is less than the distance of detection thing to light source to the distance of light source, and described even tabula rasa surface is densely covered with multiple micro-recesses or micro-protrusions.
Further, also comprised the optical element of convergence effect, described optical element interval is located between multiple lens and even tabula rasa.
Further, described optical element is for converging rod or linear Fresnel lens, and described optical element length, width are greater than length, the width of light source respectively.
After adopting such scheme, the device that the present invention promotes light source uniformity has following beneficial effect:
1, multiple light source particles of composition light source to be arranged in same plane and to be set in distance, and place multiple lens playing convergence effect in the side of light source, and each light source particle and each lens position one_to_one corresponding, such design makes the light of each light source particle emission carry out beam-expanding collimation, the light of the granuloplastic light source overall emission of multiple light source just achieves the effect of expanded light beam, and make most of light all keep substantially parallel with the light source particle direction of illumination of center, improve effective area and the uniformity of light source, and improve brightness and the capacity usage ratio of light source,
2, by setting up even tabula rasa, the material of these even tabula rasas is made primarily of materials such as lucite, PMMA (polymethyl methacrylate), the even tabula rasa transmitance that these materials are made is general all between 70% ~ 95%, the transmission direction of most of light can not be changed, especially the transmission direction of low-angle light, by arranging the multiple micro-recesses or micro-protrusions that cross section is sawtooth pattern or undaform on its surface, can by the light refraction of wide-angle, further some light is carried out homogenising, improve brightness and the capacity usage ratio of light source further;
3, by having set up the optical element of convergence effect, the light that light source is launched converges further, further increases the brightness of light source and the capacity usage ratio of light source;
4, optical element adopts and converges rod or linear Fresnel lens, and length, width are set to the length, the width that are greater than light source respectively, such design can make light converge at width, and length direction remains unchanged, be applicable to strip source use, and the brightness of strip source and the capacity usage ratio of light source can be improved.
Accompanying drawing explanation
Fig. 1 is device embodiment one structural representation that the present invention promotes light source uniformity;
Figure 1A is the light path schematic diagram of single source particle after lens in Fig. 1;
Fig. 2 is device embodiment two structural representation that the present invention promotes light source uniformity;
Fig. 3 is the perspective view that the present invention promotes the device embodiment three of light source uniformity;
Fig. 4 is the perspective view that the present invention promotes the device embodiment four of light source uniformity;
Fig. 5 is the perspective view that the present invention promotes the device embodiment five of light source uniformity;
Fig. 6 is the perspective view that the present invention promotes the device embodiment six of light source uniformity;
Fig. 7 is the perspective view that the present invention promotes the device embodiment seven of light source uniformity;
Fig. 8 is the schematic front view that the present invention promotes the device embodiment seven of light source uniformity;
Fig. 9 is that schematic diagram is looked on the left side that the present invention promotes the device embodiment seven of light source uniformity;
Figure 10 is device embodiment eight structural representation that the present invention promotes light source uniformity;
Figure 11 is device embodiment nine structural representation that the present invention promotes light source uniformity.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention will be further described.
The present invention promotes device embodiment one structural representation of light source uniformity as shown in Figure 1, and it comprises multiple light source particles 1 of composition light source, and this light source can be area source or strip source.This embodiment illustrates for area source.Multiple light source particle 1 is located at same level and is set in distance.Shown in Fig. 1, the upside of multiple light source particle 1 is interval with the multiple lens 2 playing convergence effect being positioned at same level, and lens 2 can select convex lens herein.Lower one-to-one relationship presented by light source particle 1 and lens 2, and lens 2 are generally circular or square.Therefore the diameter of lens 2 or the length of side must be less than or equal to the distance between adjacent two lens 2.
During work, the light that each light source particle 1 sends is respectively after lens 2 converge, the light that each light source particle 1 is launched carries out beam-expanding collimation, with reference to the light path schematic diagram of single source particle after lens shown in Figure 1A, the diameter of the light-emitting area of light source particle 1 is D1, D1=8mm in this embodiment, the incident angle that the light that light source particle 1 is launched enters lens 2 is α, α=18 ° in this embodiment, the shooting angle of light after lens 2 reflect is β, β=2 ° herein, now the spot diameter of the emergent ray of light source particle 1 is D2, these embodiment lens 2 select circle, also square lens can be selected, so just characterize by the length of side.D2=23.4mm in this embodiment.As can be seen from Figure, after lens 2, the light that light source particle 1 is launched achieves beam-expanding collimation, the light that the light source that so multiple light source particle 1 forms is launched just achieves the effect of expanded light beam, major part light can keep substantially parallel with the light direction of illumination of center, so just substantially increase effective area and the uniformity of light source, improve the capacity usage ratio of light source simultaneously.
The present invention promotes device embodiment two structural representation of light source uniformity as shown in Figure 2, its most of structure is identical with example structure described in Fig. 1, difference is: the spacing B between adjacent two light source particles 1 meets: B=D+2X*tgA, wherein D is diameter or the length of side of the hot spot of light source particle 1 after lens 2, X is light source particle 1 and the distance detecting thing, and A is partly the decline angle of light source particle 1 after lens 2.After such design, can make can be overlapping between multiple light source particle 1, improves the illumination in the effective area of light source further, further increase the uniformity of light source irradiation simultaneously, and improve the capacity usage ratio of light source.
The course of work that the present embodiment promotes the device of light source uniformity is identical with embodiment described in Fig. 1, repeats no more herein.
In addition, in efficient working range, lens 2 and the spacing of corresponding light source particle 1 should ensure 0.5-2 times into lens 2 focal distance f, and lens 2 can be conventional lenses or toroidal lens herein, and conventional lenses comprises common spherical lens and Fresnel Lenses.General preferred conventional lenses, spacing elects the 0.7-0.8 of lens 2 focal distance f as doubly.
The present invention promotes the perspective view of the device embodiment three of light source uniformity as shown in Figure 3, its most of structure is identical with example structure described in Fig. 2, difference is: also comprise aluminium base 3, multiple light source particles 1 of composition light source are fixedly installed on aluminium base 3, two opposite ends of aluminium base 3 are welded with positive and negative electrode solder joint, multiple light source particle 1 is interconnected by wire, and be connected with positive and negative electrode solder joint, can as required multiple light source particle 1 be connected in series or be connected in parallel herein.Such design can as required, and multiple light source particle 1 can carry out arrangement splicing on aluminium base 3, is combined into the length, the width that need arbitrarily, applied widely.Easy for installation for the ease of processing, multiple light source particle 1 is set to many rows.
During work, multiple light source particle 1 is owing to mutually connecting by wire, then after accessing power supply, multiple light source particle 1 gets final product emission of light, and the course of work is shown in that Fig. 1 describes, and repeats no more herein.
The present invention promotes the perspective view of the device embodiment four of light source uniformity as shown in Figure 4; its most of structure is identical with example structure described in Fig. 3; difference is: aluminium base 3 is connected to form by multiple aluminium base plate 4; multiple light source particle 1 is fixedly installed on multiple aluminium base plate 4; can for each aluminium base plate 4 being installed a light source particle 1 or installing multiple light source particle 1; all belong to the scope of protection of the invention; such design according to product needed flexible assembling, can meet the demand of different product.
The present invention promotes the perspective view of the device embodiment five of light source uniformity as shown in Figure 5, its most of structure is identical with example structure described in Fig. 3, difference is: multiple lens 2 are installed on support body 5, the level board 7 that support body 5 comprises longitudinal riser 6 and is vertically connected on riser, multiple lens 2 are installed on the level board 7 of support body 5, level board 7 is provided with multiple through hole, and each lens 2 are installed in each through hole respectively.Aluminium base 3 is fixed on the lower end of support body 5, and parallel with level board 7, the upper and lower one_to_one corresponding in position of each light source particle 1 and each lens 2.Such project organization is simple, is easy to install fix.The effective area of optical effect and light, uniformity are easy to realize.
The present invention promotes the perspective view of the device embodiment six of light source uniformity as shown in Figure 6, its most of structure is identical with example structure described in Fig. 1 or Fig. 2, difference is: also comprise even tabula rasa 8, the opposite side of multiple lens 2 is located at even tabula rasa 8 interval, and this embodiment is the top position of multiple lens 2.Even tabula rasa 8 is less than the distance of detection thing to light source to the distance of light source, and the surface of even tabula rasa 8 is densely covered with multiple micro-recesses 9, or micro-protrusions.The cross section of multiple micro-recesses 9 is zigzag or corrugated elongated slot, and the spacing between adjacent two sawtooth or wave is less than or equal to 0.5mm.Even tabula rasa 8 is made primarily of materials such as lucite or PMMA (polymethyl methacrylate), the light transmittance of the even tabula rasa 8 that this kind of material is made is general all between 70% ~ 95%, the transmission direction of most of light can not be changed, especially the transmission direction of low-angle light.
During work, multiple light source particle 1 is after the collimator and extender through multiple lens 2, the more multiple micro-recesses 9 on even tabula rasa 8, by the light refraction of wide-angle, further some light can be carried out the capacity usage ratio of homogenising and raising light source.
As shown in Fig. 7, Fig. 8, Fig. 9, the present invention promotes the perspective view of the device embodiment seven of light source uniformity, schematic front view and a left side and looks schematic diagram, its most of structure is identical with example structure described in Fig. 5, difference is: conveniently overall construction design, and even tabula rasa 8 is vertically connected at riser 6 upper end of support body 5 by this embodiment.
The present invention promotes device embodiment eight structural representation of light source uniformity as shown in Figure 10, its most of structure can be identical with the structure of the arbitrary described embodiment of Fig. 1-Fig. 9, this embodiment is selected identical with example structure described in Fig. 7, difference is: the optical element 10 also having comprised convergence effect, and on this optical element, 10 can be convergence rod or linear Fresnel lens.This optical element 10 interval is located between multiple lens 2 and even tabula rasa 8.The light collection that such design can make light source launch further, improves the brightness that graph region inner light source adopted by camera further, makes more light enter surveyed area, improve the utilization rate of light source.
During work, multiple light source particle 1 is after the collimator and extender through multiple lens 2, again through optical element 10 further by beams converge, the brightness of graph region inner light source adopted by further raising camera, more light is made to enter surveyed area, improve the utilization rate of light source, and improve the uniformity of light further.
What embodiment described in Fig. 1-Figure 10 was mainly introduced above is the situation that area source uses, and mainly introduces the situation of the present invention for strip source below.
The present invention promotes device embodiment nine structural representation of light source uniformity as shown in figure 11, its most of structure is identical with the structure of embodiment described in Figure 10, difference is: multiple light source particle 1 is set to a row, multiple lens 2 are also set to a row, each light source particle 1 and each lens 2 upper-lower position one_to_one corresponding.In the present embodiment, optical element 10 selects and converges rod or linear Fresnel lens.The length of this optical element 10 and width are greater than length and the width of light source respectively, and design can make light realize converging at width like this, and length direction remains unchanged, and it can improve the brightness of strip source, namely improves the capacity usage ratio of light source.
Above-mentioned Fig. 1 to Figure 10 any embodiment may be used to strip source and uses, as long as multiple light source particle 1 is set to a row, multiple lens 2 are also set to a row, each light source particle 1 and each lens 2 upper-lower position one_to_one corresponding.When using optical element 10, namely select with converging rod or linear Fresnel lens.
Those skilled in the art, at consideration description and after putting into practice invention disclosed herein, will easily expect other embodiment of the present invention.The application is intended to contain any modification of the present invention, purposes or adaptations, and these modification, purposes or adaptations are followed general principle of the present invention and comprised undocumented common practise in the art or conventional techniques means.Description and embodiment are only regarded as exemplary, and true scope of the present invention and spirit are pointed out by claim below.
Should be understood that, the present invention is not limited to precision architecture described above and illustrated in the accompanying drawings, and can carry out various amendment and change not departing from its scope.Scope of the present invention is only limited by appended claim.
Claims (10)
1. one kind promotes the device of light source uniformity, it is characterized in that, comprise multiple light source particles of composition light source, multiple described light source particle is located at same plane and is set in distance, the side of described light source is interval with and is positioned at conplane multiple lens playing convergence effect, each described light source particle and each lens position one_to_one corresponding, the diameter of described lens or the length of side are less than or equal to the distance between adjacent two lens.
2. the device promoting light source uniformity as claimed in claim 1, it is characterized in that, spacing B between adjacent described light source particle meets: B=D+2X*tgA, wherein D is diameter or the length of side of the hot spot of light source particle after lens, X is light source particle and the distance detecting thing, and A is partly the decline angle of light source particle after lens.
3. the device promoting light source uniformity as claimed in claim 2, is characterized in that, described lens and the spacing of corresponding light source particle are 0.5-2 times of the described focal length of lens.
4. the device promoting light source uniformity as claimed in claim 1, it is characterized in that, the multiple light source particles forming described light source are installed on aluminium base, the opposite end of described aluminium base is welded with positive and negative electrode solder joint, and multiple described light source particle is interconnected by wire and is connected with positive and negative electrode solder joint.
5. the device promoting light source uniformity as claimed in claim 4, it is characterized in that, the multiple light source particles forming described light source are set at least one row.
6. the device promoting light source uniformity as claimed in claim 5, it is characterized in that, described aluminium base is connected to form by multiple aluminium base plate, and multiple described light source particle is fixed on multiple aluminium base plate.
7. the device of the lifting light source uniformity as described in one of claim 4-6, is characterized in that, multiple described lens are installed on the level board of support body, and described aluminium base is arranged at one end of support body and parallel with level board.
8. the device promoting light source uniformity as claimed in claim 1, it is characterized in that, also comprise even tabula rasa, the opposite side of multiple lens is located at by described even tabula rasa, described even tabula rasa is less than the distance of detection thing to light source to the distance of light source, and described even tabula rasa surface is densely covered with multiple micro-recesses or micro-protrusions.
9. the device promoting light source uniformity as claimed in claim 8, it is characterized in that, also comprised the optical element of convergence effect, described optical element interval is located between multiple lens and even tabula rasa.
10. the device promoting light source uniformity as claimed in claim 9, is characterized in that, described optical element is for converging rod or linear Fresnel lens, and described optical element length, width are greater than length, the width of light source respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510565885.4A CN105156925A (en) | 2015-09-08 | 2015-09-08 | Device for improving uniformity of light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510565885.4A CN105156925A (en) | 2015-09-08 | 2015-09-08 | Device for improving uniformity of light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105156925A true CN105156925A (en) | 2015-12-16 |
Family
ID=54797890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510565885.4A Pending CN105156925A (en) | 2015-09-08 | 2015-09-08 | Device for improving uniformity of light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105156925A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501267A (en) * | 2016-10-18 | 2017-03-15 | 凌云光技术集团有限责任公司 | Linear light source device and system for surface defects detection |
| CN106657708A (en) * | 2016-11-23 | 2017-05-10 | 北京恒通安泰科技有限公司 | Lighting device acting as line light source and image collecting system |
| CN109483876A (en) * | 2018-12-28 | 2019-03-19 | 精唯信诚（北京）科技有限公司 | A kind of light source module group and 3D printer |
| CN110888286A (en) * | 2019-12-12 | 2020-03-17 | 中科微至智能制造科技江苏有限公司 | Line scanning camera light source system |
| CN113655487A (en) * | 2021-09-16 | 2021-11-16 | 中国电子科技集团公司第四十四研究所 | Front-end device for continuous field-of-view laser short-range detection |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003280094A (en) * | 2002-03-22 | 2003-10-02 | Ricoh Co Ltd | Lighting device |
| CN1627126A (en) * | 2003-12-04 | 2005-06-15 | 夏普株式会社 | Projector optical system configuration, optical module and projector, and equipment using same |
| CN101545995A (en) * | 2008-03-24 | 2009-09-30 | 帝人化成株式会社 | Complex diffuser |
| CN102364223A (en) * | 2011-10-26 | 2012-02-29 | 华侨大学 | Window type illumination white-light LED (Light-Emitting Diode) flat lamp |
| CN202203701U (en) * | 2011-07-29 | 2012-04-25 | 宁波市鄞州皓升半导体照明有限公司 | White-light LED (Light Emitting Diode) flat lamp |
| CN102668696A (en) * | 2009-06-25 | 2012-09-12 | 皇家飞利浦电子股份有限公司 | Multi-beam illumination system and method of illumination |
| CN203036355U (en) * | 2013-02-18 | 2013-07-03 | 光明半导体（天津）有限公司 | Light-emitting diode (LED) lamp bar with heat dissipation device |
| CN103307492A (en) * | 2013-06-28 | 2013-09-18 | 合肥美亚光电技术股份有限公司 | LED condensation light source and material sorting device based on same |
| JP5473966B2 (en) * | 2011-03-04 | 2014-04-16 | 三菱電機株式会社 | Light source unit and lighting device |
| JP2014229476A (en) * | 2013-05-22 | 2014-12-08 | 北明電気工業株式会社 | Luminaire |
| CN204554404U (en) * | 2015-01-22 | 2015-08-12 | 深圳市斯迈得光电子有限公司 | A kind of 600x600mm mixed light is apart from the direct-illumination type panel lamp of 25mm |
-
2015
- 2015-09-08 CN CN201510565885.4A patent/CN105156925A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003280094A (en) * | 2002-03-22 | 2003-10-02 | Ricoh Co Ltd | Lighting device |
| CN1627126A (en) * | 2003-12-04 | 2005-06-15 | 夏普株式会社 | Projector optical system configuration, optical module and projector, and equipment using same |
| CN101545995A (en) * | 2008-03-24 | 2009-09-30 | 帝人化成株式会社 | Complex diffuser |
| CN102668696A (en) * | 2009-06-25 | 2012-09-12 | 皇家飞利浦电子股份有限公司 | Multi-beam illumination system and method of illumination |
| JP5473966B2 (en) * | 2011-03-04 | 2014-04-16 | 三菱電機株式会社 | Light source unit and lighting device |
| CN202203701U (en) * | 2011-07-29 | 2012-04-25 | 宁波市鄞州皓升半导体照明有限公司 | White-light LED (Light Emitting Diode) flat lamp |
| CN102364223A (en) * | 2011-10-26 | 2012-02-29 | 华侨大学 | Window type illumination white-light LED (Light-Emitting Diode) flat lamp |
| CN203036355U (en) * | 2013-02-18 | 2013-07-03 | 光明半导体（天津）有限公司 | Light-emitting diode (LED) lamp bar with heat dissipation device |
| JP2014229476A (en) * | 2013-05-22 | 2014-12-08 | 北明電気工業株式会社 | Luminaire |
| CN103307492A (en) * | 2013-06-28 | 2013-09-18 | 合肥美亚光电技术股份有限公司 | LED condensation light source and material sorting device based on same |
| CN204554404U (en) * | 2015-01-22 | 2015-08-12 | 深圳市斯迈得光电子有限公司 | A kind of 600x600mm mixed light is apart from the direct-illumination type panel lamp of 25mm |
Non-Patent Citations (1)
| Title |
|---|
| 陈红等: "柱面菲涅尔透镜出光特性研究", 《企业技术开发》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501267A (en) * | 2016-10-18 | 2017-03-15 | 凌云光技术集团有限责任公司 | Linear light source device and system for surface defects detection |
| CN106657708A (en) * | 2016-11-23 | 2017-05-10 | 北京恒通安泰科技有限公司 | Lighting device acting as line light source and image collecting system |
| CN106657708B (en) * | 2016-11-23 | 2018-06-08 | 北京恒通安泰科技有限公司 | Lighting device and image capturing system as line source |
| CN109483876A (en) * | 2018-12-28 | 2019-03-19 | 精唯信诚（北京）科技有限公司 | A kind of light source module group and 3D printer |
| CN110888286A (en) * | 2019-12-12 | 2020-03-17 | 中科微至智能制造科技江苏有限公司 | Line scanning camera light source system |
| CN113655487A (en) * | 2021-09-16 | 2021-11-16 | 中国电子科技集团公司第四十四研究所 | Front-end device for continuous field-of-view laser short-range detection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105156925A (en) | Device for improving uniformity of light source | |
| CN1021603C (en) | Liquid crystal display illumination system | |
| CN101922632B (en) | LED lighting device | |
| CN103032794A (en) | Lighting device | |
| CN105090790A (en) | Long-breadth high-power line light source device and system | |
| CN101424384A (en) | Light shield and illuminating apparatus employing the light shield | |
| CN103912822A (en) | Side light type backlight module | |
| JP2015518175A (en) | Multi-polygon tiling for microlens arrays | |
| CN104471306A (en) | Illumination device and display device | |
| CN102537843A (en) | Secondary optical lens module | |
| CN103148443A (en) | Dual-free-curve thick lens for obtaining uniform parallel light beams and array thereof | |
| US20080115830A1 (en) | Test device for solar concentrator module | |
| KR20140050500A (en) | Backlight module | |
| CN202691900U (en) | Lens and illuminating device including same | |
| CN202757009U (en) | Direct type backlight module and display device | |
| US10295151B2 (en) | Optical member for spot flood lights | |
| WO2018025993A1 (en) | Lighting device | |
| CN202256751U (en) | Edge-type light guide plate | |
| CN111609356A (en) | Lighting device | |
| CN102889517A (en) | Backlight module capable of reducing backlight shadow | |
| JP5529576B2 (en) | Light emitting device | |
| CN207661709U (en) | Lampshade structure in a kind of wide-angle polarisation | |
| CN102705723A (en) | Surface light source device | |
| CN102954437B (en) | LED light distribution lens curved surface construction method and LED light distribution lens | |
| CN201652176U (en) | Improved structure of light-passing board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151216 |
|
| RJ01 | Rejection of invention patent application after publication |