Structured light projector with solid optical spacer element
US11262644B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2019 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | May 10, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0185
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The disclosed structured light projector may include (1) a light source having a light-emitting side that emits light, (2) a solid optical spacer element having a first side securely coupled to the light-emitting side of the light source, and (3) a diffractive optical element (DOE) stack including one or more DOEs, where the DOE stack includes (a) a light-receiving side securely coupled to a second side of the solid optical spacer element opposite the first side, and (b) a light-emitting side opposite the light-receiving side that emits structured light in response to the light received from the light-emitting side of the light source via the solid optical spacer element. Various other devices and methods are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.