Distributed light projection device
US12181702B2 · kind B2 · utility
0Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2021 |
| Grant date | Dec 31, 2024 |
| Priority date | — |
| Expiry date | Jan 20, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/34
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A Distributed light projection device, including: one or a plurality of waveguides; and above each waveguide, a plurality of extraction cells coupled to distinct portions of the guide, each extraction cell including first and second stacked diffraction gratings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.