发明名称 |
Optical device and measuring method |
摘要 |
An optical device capable of measuring a condition such as deflection of a cylindrical body such as utility pole or cylindrical column precisely and rapidly is provided. The optical device has a telescope with a projection plate. The projection plate has a reference scale made of a plurality of full or substantially full circles arranged concentrically about a central axis of the telescope or a plurality of circular arcs arranged symmetrically about the central axis.
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申请公布号 |
US7996998(B2) |
申请公布日期 |
2011.08.16 |
申请号 |
US20080596294 |
申请日期 |
2008.10.02 |
申请人 |
KANSAI KOUJI SOKURYOU CO., LTD. |
发明人 |
NAKANIWA KAZUHIDE |
分类号 |
G01C5/00 |
主分类号 |
G01C5/00 |
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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