Invention Grant
US08861059B2 Method and apparatus for controlling mirror motion in light scanning arrangements
有权
用于在光扫描装置中控制镜面运动的方法和装置
- Patent Title: Method and apparatus for controlling mirror motion in light scanning arrangements
- Patent Title (中): 用于在光扫描装置中控制镜面运动的方法和装置
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Application No.: US13418667Application Date: 2012-03-13
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Publication No.: US08861059B2Publication Date: 2014-10-14
- Inventor: James Giebel , Peter Fazekas
- Applicant: James Giebel , Peter Fazekas
- Applicant Address: US NY Holtsville
- Assignee: Symbol Technologies, Inc.
- Current Assignee: Symbol Technologies, Inc.
- Current Assignee Address: US NY Holtsville
- Agent Nong-Qiang Fan
- Main IPC: G02B26/08
- IPC: G02B26/08 ; H02P25/02 ; G06K7/10
Abstract:
A method and apparatus of driving a motor in a light scanning arrangement. The method includes the following steps: (1) driving a drive coil with a drive signal to oscillate a scan mirror and a light beam reflected from the scan mirror; (2) generating a feedback signal having zero crossings during oscillation of the scan mirror by a feedback coil in proximity to the drive coil; (3) integrating the feedback signal to generate an integrated feedback signal; and (4) processing the integrated feedback signal to generate a periodic drive signal that has the same time period as the feedback signal.
Public/Granted literature
- US20120170093A1 METHOD AND APPARATUS FOR CONTROLLING MIRROR MOTION IN LIGHT SCANNING ARRANGEMENTS Public/Granted day:2012-07-05
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