Multicolor illuminator system
US7410261B2 · kind B2 · utility
7Cited by
12References
35Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 20, 2005 |
| Grant date | Aug 12, 2008 |
| Priority date | — |
| Expiry date | Jun 3, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3152
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In an image projection system, there are at least two light illumination units producing illumination light beams of respective first and second primary colors. A first beamsplitter is disposed to split at least a portion of the first illumination light beam into sub-beams, one of which is directed to a first image-forming panel. The other sub-beam is combined with at least some of the second illumination light beam to form a light beam of mixed light that illuminates the image-forming panel. In some embodiments, the first beamsplitter is a polarizing beamsplitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.