Projection systems and methods for both color and monochromatic displays
US7188957B2 · kind B2 · utility
0Cited by
13References
40Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 20, 2004 |
| Grant date | Mar 13, 2007 |
| Priority date | — |
| Expiry date | May 10, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/14
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A projection system for both color and monochromatic displays includes a color wheel having filter portions of different colors and a clear portion; and a drive system configured to keep the color wheel moving while keeping a projection light beam shining through the clear portion of the color wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.