发明名称 |
Optical measuring head |
摘要 |
An optical measuring head which includes a cylindrical portion having a circular cross section, a plurality of light projecting fibers axially disposed in the cylindrical portion through a predetermined distance, a light receiving fiber provided along an axis of the cylindrical portion, and a convex lens formed, at its outer peripheral portion, with a light receiving face for receiving the light from the light projecting fibers and directing the light through the lens so that the light will be incident upon a flat surface of the lens adjacent an object to be measured, through an angle smaller than a critical angle whereby the light will not be reflected by the flat surface, and disposed at a position coaxial with the light receiving fiber for focusing on a forward end face of the light receiving fiber.
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申请公布号 |
US4816670(A) |
申请公布日期 |
1989.03.28 |
申请号 |
US19870098332 |
申请日期 |
1987.09.18 |
申请人 |
GODAI EMBODY CO., LTD.;FUJI PHOTO FILM CO., LTD |
发明人 |
KITAMURA, SHIRO;KOIZUMI, JUNJI;YAMADA, KIYOSHI |
分类号 |
G01N21/47;(IPC1-7):G02B6/00 |
主分类号 |
G01N21/47 |
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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