Multiple channel illumination system
US7390097B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 23, 2004 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Feb 17, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V19/001
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An illumination system, used for illuminating a target area, includes a plurality of light generating elements and a plurality of light collection units disposed to collect light from respective light generating elements. Imaging lens units are disposed to relay images of respective light collection units to the target area, light from different light generating elements overlapping at the target area. In some embodiments, the illumination system also includes color combining elements to combine light from differently colored light generating elements. The illumination system may be used in a projection system, with the light from the illumination system incident on an image-forming device placed at the target area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.