Projection system with optical filter
US7273282B2 · kind B2 · utility
17Cited by
8References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2004 |
| Grant date | Sep 25, 2007 |
| Priority date | — |
| Expiry date | Mar 3, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projection system is disclosed that includes a light source, a spatial light modulator, and an optical filter. The light source is configured to generate a light beam having a spectral distribution spanning a set of primary colors. The spatial light modulator has an array of pixel elements. Each pixel element is configured to receive a portion of the light beam and to output a modulated light beam with a spectral peak defining one of the set of primary colors. The optical filter is configured to narrow the spectral peak.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.