Projector
US7712902B2 · kind B2 · utility
10Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2006 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Mar 11, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3167
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projector includes: a first light modulation device that modulates illumination light; a second light modulation device that further modulates the illumination light modulated by the first light modulation device; a projection unit that projects the modulated illumination light toward a screen; and an optical device moving unit that moves an optical device blocking at least part of the illumination light relatively to a light path of the illumination light to move the device off the light path in response to an external request.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.