Assembled uniform area light source |
Title： |
| Assembled uniform area light source |
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Application Number： |
200610002143 |
Application Date： |
2006/01/19 |
Announcement Date： |
2006/10/11 |
Pub. Date： |
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Publication Number： |
1844988 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G02F 1/13357, H01L 33/00, G02B 27/00 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
Luo Yi, Qian Keyuan, Yang Yi, Han Yanjun |
Key Words： |
Assembled, uniform area, light source |
Abstract： |
The invention discloses an assembled uniform surface light source, belonging to the packing technique of light-emitting diode. It is characterized in that: it is a surface light source formed by assembling several surface light source modules that based on light-emitting diode. Wherein, each surface light source module comprises light-emitting diode light source, and a light-average collimate optical device which can make the light of light-emitting diode light source, via reflect and/or refract to generate uniform luminance on the emit plane while the emit direction is parallel with the middle axis of light. The invention can attain better light uniformity with high efficiency, while it can be used as a back light source in the personal computer, vehicle navigation system, etc. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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