Projection system and method
US7163293B2 · kind B2 · utility
2Cited by
11References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2003 |
| Grant date | Jan 16, 2007 |
| Priority date | — |
| Expiry date | Jan 16, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3117
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projection system including light emitting units, a scrolling unit, and a light valve. The light emitting units emitting light beams of different wavelengths. The scrolling unit has spirally arranged cylinder lens cells which separate the light beams into color beams and scroll the color beams when the scrolling unit is rotated. The light valve receives, at different positions, the color beams transmitted by the scrolling unit and forms a color image by turning pixels on or off according to an input image signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.