发明授权
US07079232B2 Focus detecting unit, and refractive index measuring apparatus and non-contact thermometer using the same
失效
聚焦检测单元，折射率测量装置和使用其的非接触式温度计
- 专利标题： Focus detecting unit, and refractive index measuring apparatus and non-contact thermometer using the same
- 专利标题（中）： 聚焦检测单元，折射率测量装置和使用其的非接触式温度计
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申请号： US10945098申请日： 2004-09-21
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公开(公告)号： US07079232B2公开(公告)日： 2006-07-18
- 发明人: Mitsuru Namiki
- 申请人： Mitsuru Namiki
- 申请人地址： JP Tokyo
- 专利权人： Olympus Corporation
- 当前专利权人： Olympus Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Kenyon & Kenyon LLP
- 优先权： JP2003-330210 20030922
- 主分类号： G01N21/41
- IPC分类号： G01N21/41 ; G01N21/00
摘要：
The focus detecting unit includes, a light source unit emanating a collimated light, an optical unit to be inspected, which is equipped with a container having translucency, a lens and liquid, a deflection unit which irradiates a light to the unit to be inspected by diffracting a light from the light source, a spot position detecting means 4 arranged near a backside focus plane of the optical unit to be inspected, and an operating means which calculates the composite focal length of a lens and liquid in the optical unit to be inspected by using the spot position detected by the spot position detecting means.
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