Speckle-suppressing lighting system
US12001028B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2022 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Sep 26, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/0278
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A speckle-suppressing lighting system includes an optical waveguide, a first solid-state light source, a second solid-state light source, and a diffuser. The optical waveguide has a proximal end and a distal end. At least part of the diffuser is between the proximal end and the distal end. The first solid-state light source is optically coupled to the optical waveguide near the proximal end, and emits a first light beam that propagates toward the distal end and has a first center wavelength. The second solid-state light source is optically coupled to the optical waveguide near the proximal end, and emits a second light beam that propagates toward the distal end and has a second center wavelength differing from the first center wavelength. The diffuser diffuses the first light beam and the second light beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.