Scanning laser projector system utilizing photodiodes inside scan area but outside of projection area for feedback
US11982928B2 · kind B2 · utility
0Cited by
2References
17Claims
0Family size
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Inventors
Key dates
| Filing date | Nov 2, 2022 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Nov 2, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3194
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scanning laser projector includes an optical module with a housing defined by a top surface, a bottom surface, and sidewalls extending between the top surface and bottom surface to define an interior compartment within the housing. A given one of the sidewalls has an exit window defined therein. A first light detector is positioned at an interior surface of the given one of the sidewalls about a periphery of the exit window. A second light detector positioned at the interior surface of the given one of the sidewalls about the periphery of the exit window and on a different side thereof than the first light detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.