Laser light source and projection display device
US10048576B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 23, 2014 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Nov 12, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/0071
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a laser light source and a projection display device. The laser light source includes: N groups of laser devices, N convex lenses, a concave lens and at least one reflector component; each convex lens corresponds to a group of laser devices, and is configured to converge light beams emitted by the corresponding group of laser devices; each reflector component corresponds to at least one convex lens and is disposed in a emergent light direction of a corresponding convex lens, and the concave lens is disposed in a emergent light direction of the at least one reflector component; and an emergent light beam of the convex lens corresponding to each reflector component passes through the reflector component and then arrives at the concave lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.