Device and method for emitting a light beam intended to form an image, projection system, and display using said device
US10215979B2 · kind B2 · utility
1Cited by
8References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 16, 2013 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | Jul 16, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0154
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A device for emitting a light beam intended to form an image includes a plurality of sources, each emitting a beam of the laser type. The device is configured to form the light beam by combining the laser beams, and includes attenuation means, situated downstream of the plurality of sources, making it possible to vary the optical power of the light beam. The attenuation means includes one or more retractable filters, and is able to be interposed in the laser beams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.