Compact, low cost VCSEL projector for high performance stereodepth camera
US10924638B2 · kind B2 · utility
4Cited by
1References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2016 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Oct 16, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/02255
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A VCSEL projector and method for using the same are disclosed. In one embodiment, the apparatus comprises a vertical cavity surface emitting laser (VCSEL) array comprising a plurality of VCSELs; a micro-lens array coupled to the VCSEL array and having a plurality of lenses, and each of the plurality of lenses is positioned over a VCSEL in the VCSEL array; and a projection lens coupled to the micro-lens array (MLA), where light emitted by the VCSEL array is projected as a sequence of patterns onto an object by the projection lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.