LED homogenizer
US8632216B2 · kind B2 · utility
4Cited by
14References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2011 |
| Grant date | Jan 21, 2014 |
| Priority date | — |
| Expiry date | Feb 3, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/855
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
One embodiment of an optical system described herein comprises a source including light emitting diode chip and a homogenizer. One embodiment of the homogenizer comprises an entrance face positioned to receive light from the source, the entrance face having a first shape, a body configured to homogenize the received light and an exit face, the exit face parallel to the primary emitting face of the source. The homogenizer can emit light with a half angle that is at least 80% of the half angle of light entering the homogenizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.