Illumination unit and image projection apparatus employing the same
US7828448B2 · kind B2 · utility
9Cited by
3References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2006 |
| Grant date | Nov 9, 2010 |
| Priority date | — |
| Expiry date | Sep 9, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/904
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An illumination unit and an image projection apparatus employing the same. The illumination unit includes: a first reflective surface reflecting light incident thereon; a light-emitting device generating and emitting illuminating light; and a second reflective surface reflecting light emitted from the light-emitting device to a light source surface that includes the light-emitting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.