Flood projector with microlens array
US12123589B1 · kind B1 · utility
0Cited by
45References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 2023 |
| Grant date | Oct 22, 2024 |
| Priority date | — |
| Expiry date | May 22, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V5/004
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An optoelectronic apparatus includes a semiconductor substrate and an array of emitters disposed on the semiconductor substrate and configured to emit beams of optical radiation having respective chief rays. An optical diffuser is mounted over the semiconductor substrate and configured to diffuse the beams. Microlenses are disposed between the semiconductor substrate and the optical diffuser in respective alignment with the emitters and configured to steer the beams at different, respective angles, which are selected so that at least some of the chief rays cross one another before passing through the diffuser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.