发明名称 |
Rotation detecting system for galvano mirror |
摘要 |
A galvano mirror system includes (1) a galvano mirror, (2) a mirror holder having a front portion to which the galvano mirror is mounted and a rear portion opposing to the front portion, (3) a stator which rotatably supports the mirror holder, (4) first and second reflecting surfaces provided to the rear portion of the mirror holder, and (5) first and second photo sensors provided to the stator. Each photo sensor includes a light-emitting device and a light-receiving device. A controller of the galvano mirror system detects the rotational position of the mirror holder according to on a difference in outputs of the light-receiving devices of the first and second photo sensors.
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申请公布号 |
US2001010588(A1) |
申请公布日期 |
2001.08.02 |
申请号 |
US20010809097 |
申请日期 |
2001.03.16 |
申请人 |
ASAHI KOGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
TAKISHIMA SUGURU;NAKAGISHI TOSHIO |
分类号 |
G11B7/085;(IPC1-7):G02B26/08 |
主分类号 |
G11B7/085 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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