Protecting mirrors in a laser beam scanning display device
US10721445B1 · kind B1 · utility
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20Claims
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Assignee
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Key dates
| Filing date | Sep 30, 2019 |
| Grant date | Jul 21, 2020 |
| Priority date | — |
| Expiry date | Sep 30, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0172
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A laser beam scanning (“LBS”) display device is configured with an optical system that includes a laser beam emitter configured to emit a laser beam. The optical system also includes a driver configured to generate a driving signal for controlling a mirror, such as a microelectromechanical systems (“MEMS”) mirror. The optical system also includes an output limiter configured to limit an amplitude of the driving signal provided to the mirror to a bounded range. The output limiter might be implemented as hardware, software, or a combination of hardware and software.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.