Invention Application
- Patent Title: METHOD FOR OPERATING A LASER PROJECTOR TO HAVE A UNIFORM SCAN PATTERN
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Application No.: US15643164Application Date: 2017-07-06
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Publication No.: US20190011695A1Publication Date: 2019-01-10
- Inventor: Guy Amor , Offir Duvdevany
- Applicant: STMicroelectronics Ltd
- Applicant Address: IL Netanya
- Assignee: STMicroelectronics Ltd
- Current Assignee: STMicroelectronics Ltd
- Current Assignee Address: IL Netanya
- Main IPC: G02B26/10
- IPC: G02B26/10

Abstract:
Mirror control circuitry described herein is for controlling a first micro-mirror of a micro-mirror apparatus that scans across a target area in a scan pattern. The mirror control circuitry includes a processor that determines a mechanical angle of the first micro-mirror for a given instant in time during scanning of the first micro-mirror between upper and lower rotational limits, the mechanical angle being such to maintain the scan pattern as being uniform while the micro-mirror apparatus scans across the target area between the upper and lower rotational limits. The processor also generates a driving signal for the first micro-mirror as a function of the determined mechanical angle for the first micro-mirror at the given instant in time.
Public/Granted literature
- US10365476B2 Method for operating a laser projector to have a uniform scan pattern Public/Granted day:2019-07-30
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