Compact, high-efficiency illumination system for video-imaging devices
US7220035B2 · kind B2 · utility
10Cited by
8References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2004 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Dec 17, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4298
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An illumination system for a video-imaging device has a light source and a collector of light from the light source. The collector is formed according to the principles of non-imaging optics and receives a portion of the light from the light source. The collector is configured to reduce the angular distribution of the collected light from the light source to match the requirements of a digital pixelation device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.