发明名称 |
Operation ring rotational state detecting device, lens device, and optical apparatus |
摘要 |
A rotational state detecting device including operation rings provided so as to be rotatable about a first axis, the operation rings each being rotated by external operation; support shafts each provided so as to be rotatable about a second axis different from the first axis; disk-shaped scales each supported by a respective one of the support shafts; sensors each detecting the rotation of a respective one of the scales; and rotation transmitting mechanisms for respectively transmitting the rotation of each of the operation rings to a respective one of the support shafts.
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申请公布号 |
US6819501(B2) |
申请公布日期 |
2004.11.16 |
申请号 |
US20020302847 |
申请日期 |
2002.11.25 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
NAKAMURA HIDEKAZU |
分类号 |
G01B7/30;G01B7/00;G01D5/245;G02B7/08;(IPC1-7):G02B15/14 |
主分类号 |
G01B7/30 |
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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