CN103075711B - Bidirectional reflection lens light transmitting device - Google Patents
Bidirectional reflection lens light transmitting device Download PDFInfo
- Publication number
- CN103075711B CN103075711B CN201210556667.0A CN201210556667A CN103075711B CN 103075711 B CN103075711 B CN 103075711B CN 201210556667 A CN201210556667 A CN 201210556667A CN 103075711 B CN103075711 B CN 103075711B
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- Prior art keywords
- optical lens
- optical
- light
- lens
- curved surface
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Links
- 230000002457 bidirectional effect Effects 0.000 title claims description 12
- 230000003287 optical effect Effects 0.000 claims abstract description 105
- 239000011521 glass Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 238000009827 uniform distribution Methods 0.000 claims 1
- 238000004020 luminiscence type Methods 0.000 description 5
- 238000000605 extraction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009740 moulding (composite fabrication) Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013041 optical simulation Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
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- Electroluminescent Light Sources (AREA)
- Lenses (AREA)
Abstract
本发明公开了一种高出光效率的双向反射透镜出光装置，包括第一光学透镜、第二光学透镜以及多个发光单元。第一光学透镜包括底面、围绕底面在竖直方向延伸的侧面以及顶面，第一光学透镜的顶面四周向中心下陷形成第一光学曲面，第一光学透镜的底面形成有入光面；第二光学透镜包括从第一光学透镜的顶面向竖直方向延伸的侧面以及顶面，第二光学透镜的顶面四周向中心下陷形成第二光学曲面，第一光学曲面的曲率半径大于第二光学曲面的曲率半径；多个发光单元沿第二光学透镜的侧面在第一光学透镜的底面的投影均匀分布，每个发光单元朝向外侧出射的光线投射于第一光学曲面后出射，朝向内侧出射的光线投射于第二光学曲面后出射。
The invention discloses a two-way reflective lens light-extracting device with high light-extracting efficiency, which comprises a first optical lens, a second optical lens and a plurality of light-emitting units. The first optical lens includes a bottom surface, a side surface extending vertically around the bottom surface, and a top surface, the top surface of the first optical lens is sunken to the center to form a first optical curved surface, and the bottom surface of the first optical lens is formed with a light incident surface; The two optical lenses include side surfaces extending vertically from the top surface of the first optical lens and a top surface. The top surface of the second optical lens is sunken to the center to form a second optical curved surface. The radius of curvature of the first optical curved surface is larger than that of the second optical lens. The radius of curvature of the curved surface; the projections of a plurality of light-emitting units along the side of the second optical lens on the bottom surface of the first optical lens are uniformly distributed, and the light emitted by each light-emitting unit toward the outside is projected on the first optical curved surface and then emitted, and the light emitted toward the inside The light is emitted after projecting on the second optical curved surface.
Description
Technical field
The present invention relates to a kind of electro-optical device that goes out that can improve luminous efficiency.
Background technology
In the optical design of prior art, the optical lens that goes out electro-optical device often can only be for the light towards a side outgoing, and mostly after lens inside repeatedly reflects, lose towards the light of opposite side outgoing, this has caused the low of light extraction efficiency, therefore this design is no longer suitable, and this is also the technical issues that need to address in prior art.
Summary of the invention
In order to overcome above-mentioned shortcoming, the object of the present invention is to provide a kind of can be by outgoing after the light reflection towards opposite side outgoing, thereby the bidirectional reflectance lens that effectively improve light extraction efficiency go out electro-optical device.
In order to reach above object, the invention provides a kind of bidirectional reflectance lens and go out electro-optical device, comprise the first optical lens, the second optical lens, and with the first described optical lens, multiple luminescence units that the second optical lens is coupled.Side and end face that the first described optical lens comprises bottom surface, extends at vertical direction around described bottom surface, the end face surrounding of the first described optical lens is sunk and is formed the first optical surface to center, and the bottom surface of the first described optical lens is formed with incidence surface; The second described optical lens comprises the side and the end face that extend to vertical direction from the end face of the first described optical lens, the end face surrounding of the second described optical lens is sunk to center and is formed the second optical surface, wherein, the radius of curvature of the first described optical surface is greater than the radius of curvature of the second described optical surface; Described multiple luminescence units are uniformly distributed in the projection of the bottom surface of the first described optical lens along the side of the second described optical lens, wherein, each described luminescence unit ray cast outgoing after the first described optical surface of outgoing toward the outer side, towards ray cast outgoing after the second described optical surface of inner side outgoing.
Further improve as the present invention, described the first optical lens, the second optical lens are concentric ladder cylindrical shape.
Further improve as the present invention, described multiple luminescence units are rounded spaced apart.
Further improve as the present invention, described multiple luminescence units are LED parts.
Further improve described the first optical lens, the second optical lens one-shot forming as the present invention.
Further improve as the present invention, described the first optical lens, the second optical lens are made up of glass or optical resin material.
Owing to having adopted technique scheme, make to adopt the light extraction efficiency that electro-optical device of design of the present invention higher, environmental protection, has saved the energy greatly.
Brief description of the drawings
Accompanying drawing 1 is the schematic perspective view that bidirectional reflectance lens according to the present invention go out electro-optical device;
Accompanying drawing 2 is the front view that bidirectional reflectance lens according to the present invention go out electro-optical device;
Accompanying drawing 3 is the cross-sectional schematic along A-A in accompanying drawing 2;
Accompanying drawing 4 is that the emergent light of general LED light fixture points to distribution collection of illustrative plates;
Accompanying drawing 5 is the emergent light sensing distribution collection of illustrative plates that bidirectional reflectance lens according to the present invention go out electro-optical device.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
Shown in accompanying drawing 1 and accompanying drawing 2, bidirectional reflectance lens in the present embodiment go out electro-optical device, comprise the first optical lens 1, second optical lens 2 of the ladder cylindrical shape distribution that is concentric, and the multiple emitting led parts 3 that are coupled with the first optical lens 1, the second optical lens 2, the first optical lens 1, the second optical lens 2 are made up of glass or optical resin material, the first optical lens 1, the second optical lens 2 one-shot formings.
Shown in accompanying drawing 3, side 12 and end face 13 that the first optical lens 1 comprises bottom surface 11, extends at vertical direction around bottom surface 11, to center, the sagging bottom surface 11 that forms the first optical surface 14, the first optical lenses is formed with incidence surface to end face 13 surroundings of the first optical lens; The second optical lens 2 comprises the side 21 and the end face 22 that extend to vertical direction from the end face 13 of the first optical lens, end face 22 surroundings of the second optical lens are sunk to center and are formed the second optical surface 23, wherein, the radius of curvature of the first optical surface 14 is greater than the radius of curvature of the second optical surface 23; Multiple LED parts 3 are rounded spaced apart in the projection of the bottom surface 11 of the first optical lens along the side 21 of the second optical lens.
Below in conjunction with accompanying drawing 3, operation principle of the present invention is described: taking the LED parts 3 that are positioned at right side in scheming as example, the light of its outgoing comprises towards inner side outgoing (left side in figure) and outgoing toward the outer side (right side in figure), choose an a in numerous light of inner side outgoing, its the incidence surface via being positioned at bottom surface 11 laggard enter optical lens inside, by after the reflection of the second optical surface 23 by side 21 outgoing of the second optical lens; And choose a b in numerous light of outgoing toward the outer side, its incidence surface via being positioned at bottom surface 11 laggard enter optical lens inside, by after the reflection of the first optical surface 14 by side 12 outgoing of the first optical lens; Can see because the diameter of the first optical lens 1 is greater than the second optical lens 2, thereby the radius of curvature of the first optical surface 14 is greater than the radius of curvature of the second optical surface 23, thereby be projeced into the light of the first optical surface 14 from side 12 outgoing of the first optical lens, be projeced into the light of the second described optical surface 23 from side 21 outgoing of the second optical lens, the bright dipping of whole optical lens is even, and light efficiency obtains and improves.Accompanying drawing 4 is that the emergent light of general LED light fixture points to distribution collection of illustrative plates, the half-angle of its luminous intensity is about 120 °, and chart in accompanying drawing 5 show bidirectional reflectance lens according to the present invention go out electro-optical device the emergent light directional property distribution situation that obtains of the optical simulation of embodiment, by using after bidirectional reflectance lens, the half-angle of luminous intensity can reach 270 ° to 315 °, thereby the luminous object of the full angle that reaches light fixture, demonstrate its superior even light distribution effect, in the today of advocating environmental protection, its outstanding energy saving effect should vigorously promote the use.
Above embodiment is only explanation technical conceive of the present invention and feature; its object is to allow person skilled in the art understand content of the present invention and implemented; can not limit the scope of the invention with this; all equivalences that Spirit Essence does according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210556667.0A CN103075711B (en) | 2012-12-20 | 2012-12-20 | Bidirectional reflection lens light transmitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210556667.0A CN103075711B (en) | 2012-12-20 | 2012-12-20 | Bidirectional reflection lens light transmitting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103075711A CN103075711A (en) | 2013-05-01 |
| CN103075711B true CN103075711B (en) | 2014-10-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210556667.0A Expired - Fee Related CN103075711B (en) | 2012-12-20 | 2012-12-20 | Bidirectional reflection lens light transmitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103075711B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749869A (en) * | 2015-04-01 | 2015-07-01 | 苏州佳世达光电有限公司 | Projector |
| CN107559617A (en) * | 2017-10-20 | 2018-01-09 | 中节能晶和照明有限公司 | A kind of light extracting LED panel light up and down |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1760700A (en) * | 2004-10-15 | 2006-04-19 | 三星电机株式会社 | Lens for LED light sources |
| CN101160670A (en) * | 2005-03-29 | 2008-04-09 | 飞利浦拉米尔德斯照明设备有限责任公司 | LED wide-angle emitting lens for backlighting |
| TW201122359A (en) * | 2009-12-21 | 2011-07-01 | Foxconn Tech Co Ltd | Lighting unit |
| CN202118806U (en) * | 2011-06-11 | 2012-01-18 | 特殊光电科技(中山)有限公司 | A kind of optical lens for LED |
| CN202140822U (en) * | 2011-04-27 | 2012-02-08 | 宏杰科技股份有限公司 | LED light source module |
| JP5380052B2 (en) * | 2008-11-25 | 2014-01-08 | パナソニック株式会社 | LED lighting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100661261B1 (en) * | 2005-05-23 | 2006-12-26 | 주식회사 세코닉스 | LED diffused lens |
-
2012
- 2012-12-20 CN CN201210556667.0A patent/CN103075711B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1760700A (en) * | 2004-10-15 | 2006-04-19 | 三星电机株式会社 | Lens for LED light sources |
| CN101160670A (en) * | 2005-03-29 | 2008-04-09 | 飞利浦拉米尔德斯照明设备有限责任公司 | LED wide-angle emitting lens for backlighting |
| JP5380052B2 (en) * | 2008-11-25 | 2014-01-08 | パナソニック株式会社 | LED lighting device |
| TW201122359A (en) * | 2009-12-21 | 2011-07-01 | Foxconn Tech Co Ltd | Lighting unit |
| CN202140822U (en) * | 2011-04-27 | 2012-02-08 | 宏杰科技股份有限公司 | LED light source module |
| CN202118806U (en) * | 2011-06-11 | 2012-01-18 | 特殊光电科技(中山)有限公司 | A kind of optical lens for LED |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103075711A (en) | 2013-05-01 |
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Granted publication date: 20141022 |