Embeddable 2-D projection nano engine for personal projector
US8079718B1 · kind B1 · utility
15Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2008 |
| Grant date | Dec 20, 2011 |
| Priority date | — |
| Expiry date | Jun 1, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133615
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projector has a transmissive spatial light modulator backlit by a collimated illuminator that includes a light source that outputs red, green, blue (RGB) light, and a combiner disposed in light-receiving relation to the light source for mixing or combining the RGB light. The combiner has cavity features associated therewith for outputting collimated light, where such light preferably has a divergent cone angle less than plus or minus fifteen degrees (+/−15°).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.