Invention Grant
- Patent Title: Amplitude control during start-up of resonating mirror
-
Application No.: US15617032Application Date: 2017-06-08
-
Publication No.: US10401616B2Publication Date: 2019-09-03
- Inventor: Elik Haran
- Applicant: STMicroelectronics Ltd
- Applicant Address: IL Netanya
- Assignee: STMicroelectronics Ltd.
- Current Assignee: STMicroelectronics Ltd.
- Current Assignee Address: IL Netanya
- Agency: Crowe & Dunlevy
- Main IPC: G02B26/08
- IPC: G02B26/08 ; G02B26/10

Abstract:
Disclosed herein is a control circuit for a movable mirror. The control circuit includes driving circuitry configured to drive the movable mirror with a drive signal to effectuate oscillating of the movable mirror, opening angle determination circuitry configured to determine an opening angle of the movable mirror, and amplitude control circuitry. The amplitude control circuitry is configured to a) first cause the driving circuitry to generate the drive signal as having an upper threshold drive amplitude, and b) then later cause the driving circuitry to generate the drive signal as having a nominal drive amplitude, as a function of the opening angle of the movable mirror being equal to a desired opening angle.
Public/Granted literature
- US20180356627A1 AMPLITUDE CONTROL DURING START-UP OF RESONATING MIRROR Public/Granted day:2018-12-13
Information query