Optical projector with off-axis diffractive element
US10310281B1 · kind B1 · utility
2Cited by
2References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 5, 2017 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | Dec 5, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V2201/121
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatus for projecting a pattern includes a laser source, a collimating lens and a diffractive optical element (DOE) to diffract the collimated laser beam into a specific dot pattern for sensing the depth of a three dimensional (3D) surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.