Device and method for emitting a light beam intended to form an image, projection system, and display using said device
US10156761B2 · kind B2 · utility
2Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2013 |
| Grant date | Dec 18, 2018 |
| Priority date | — |
| Expiry date | Mar 21, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/15
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device for emitting a light beam intended to form an image including one or more sources, each emitting a beam of the laser type, and an attenuation means situated downstream of the source or sources that allows the varying of the optical power of the light beam by transmitting or reflecting the beam or beams as a function of a supply current of the attenuation means. The device forms the light beam from the one laser beam or from the bringing together of the laser beams by combination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.