Lighting system and compact projection system
US7097309B2 · kind B2 · utility
2Cited by
7References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2003 |
| Grant date | Aug 29, 2006 |
| Priority date | — |
| Expiry date | Dec 5, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/315
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projection system including a lighting system, a screen, a color filter separating light emitted from the lighting system according to wavelengths of the light, a first reflecting mirror reflecting the light passing through the color filter to change a path of the light, a display device provided in a predetermined position in the first reflecting mirror, a second reflecting mirror reflecting light reflected from the first reflecting mirror toward the display device, and a projection lens unit enlarging and projecting a color image formed by the display device onto the screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.