Non-collinear light engine for color imaging systems
US6779893B2 · kind B2 · utility
7Cited by
9References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2003 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | Jan 24, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3167
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
For use with a color imaging system, a projection light engine may be configured in a way such that an output axis of the projection light engine may be in a non-collinear relationship with an input axis of an imaging kernel that provides image data processing to project a display. Undesired polarizations and colors may be dumped out of a critical optical path, using at least two or more ports. As a result, filters and other optical components may be optimized, significantly improving contrast ratios in a projection display system including a color imaging system with at least two panels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.