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OPTICAL UNIT FOR ENDOSCOPE AND ENDOSCOPE
专利权人:
OLYMPUS CORPORATION
发明人:
Shun OGI
申请号:
US16906522
公开号:
US20200319448A1
申请日:
2020.06.19
申请国别(地区):
US
年份:
2020
代理人:
摘要:
An optical unit for endoscope includes: a moving barrel which is a soft magnetic body, configured to hold a lens; a fixed barrel which is a non-magnetic body, configured to movably hold the moving barrel on an inner circumferential face; a pair of yokes arranged on an outer face of the fixed barrel; a coil wound around the outer face of the fixed barrel and a magnet arranged on a part in the circumferential direction, between the pair of yokes; and a magnetic body member with magnetism stronger than magnetism of the moving barrel, the magnetic body member being arranged on a part of the moving barrel in the circumferential direction, corresponding to the magnet.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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