Closed loop driving of a highlighter type projector
US11463665B2 · kind B2 · utility
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1References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 2019 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | May 7, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3194
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for driving a projection system and a projection system including a phase modulator and at least one amplitude modulator. The phase modulator is configured to generate a highlight image incident on the amplitude modulator, the projector system further includes at least one image sensor configured to receive at least a portion of an illumination pattern substantially equivalent to the illumination pattern incident on the amplitude modulator, and the image sensor is being used to provide feedback to the controller of the projection system to improve the highlights projected by the projection system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.