Light source response compensation for light projection system using a graphics processing unit
US11553164B2 · kind B2 · utility
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27Claims
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Key dates
| Filing date | Sep 4, 2020 |
| Grant date | Jan 10, 2023 |
| Priority date | — |
| Expiry date | Sep 4, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/017
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A light projection system includes a microelectromechanical (MEMS) mirror configured to operate in response to a mirror drive signal and to generate a mirror sense signal as a result of the operation. A mirror driver is configured to generate the mirror drive signal in response to a drive control signal. A zero cross detector is configured to detect zero crosses of the mirror sense signal. A controller is configured to generate the drive control signal as a function of the detected zero crosses of the mirror sense signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.