Invention Grant
US08841821B2 Driver for optical deflector using two modified syncronous saw-tooth drive voltages and method for setting the same
有权
使用两个改进的同步锯齿驱动电压的光学偏转器的驱动器及其设置方法
- Patent Title: Driver for optical deflector using two modified syncronous saw-tooth drive voltages and method for setting the same
- Patent Title (中): 使用两个改进的同步锯齿驱动电压的光学偏转器的驱动器及其设置方法
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Application No.: US13426276Application Date: 2012-03-21
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Publication No.: US08841821B2Publication Date: 2014-09-23
- Inventor: Takanori Aimono
- Applicant: Takanori Aimono
- Applicant Address: JP Tokyo
- Assignee: Stanley Electric Co., Ltd.
- Current Assignee: Stanley Electric Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Holtz Holtz Goodman & Chick PC
- Priority: JP2011-062919 20110322
- Main IPC: H02N2/00
- IPC: H02N2/00 ; G02B26/08
Abstract:
In an optical deflector including a mirror, a movable frame supporting the mirror, a support body surrounding the movable frame, and a first group of piezoelectric actuators and a second group of piezoelectric actuators alternating with the first group of piezoelectric actuators, a driver combines first and second original saw-tooth waves having the same waveform into first saw-tooth waves, and applies a first drive voltage having the first saw-tooth waves to the first group of piezoelectric actuators. The driver applies a second drive voltage having second saw-tooth waves opposite in phase with the first saw-tooth waves to the second group of piezoelectric actuators.
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