Laser projection display and illumination device with MEMS scanning mirror for indoor and outdoor applications
US7252394B1 · kind B1 · utility
51Cited by
16References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 10, 2004 |
| Grant date | Aug 7, 2007 |
| Priority date | — |
| Expiry date | Jun 6, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/812
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projection display system includes a light source emitting a light beam, and a reflecting mirror system for scanning the light beam over an image to illuminate the image. The light source can be solid state such as a laser diode. The reflecting mirror system can be one or more MEMS scanning mirrors that rotate to raster scan the light beam over the image. The image can be an advertisement located on a wall, a screen, a sign, or a billboard. The image can also be a semi-transparent image that is projected onto a medium to produce a larger image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.