发明名称 |
Device determining surface element inclination angle for the optical detection of form errors of a low order |
摘要 |
PCT No. PCT/DE86/00037 Sec. 371 Date Dec. 3, 1986 Sec. 102(e) Date Dec. 3, 1986 PCT Filed Feb. 5, 1986 PCT Pub. No. WO86/04676 PCT Pub. Date Aug. 14, 1986.A device is provided for the optical detection of form errors of a low order, for example of roughness. The device possesses a light source whose light probes the body to be examined and a light-receiving device for the light reflected by the body. The device is characterized by the fact that the light-receiving device consists of a number of light-receiving elements arranged in linear array and that an evaluation unit determines the inclination angle of the probed surface element of the body from all output signals of the light-receiving elements. Shifts in the core of the reflected light beam can be measured which are substantially below the width of a light-receiving element. The measuring results remain practically unaffected by form deviations of a higher order such as roughness etc.
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申请公布号 |
US4763006(A) |
申请公布日期 |
1988.08.09 |
申请号 |
US19860925802 |
申请日期 |
1986.12.03 |
申请人 |
OPTISCHE WERKE G. RODENSTOCK |
发明人 |
RAU, NORBERT;HUEBNER, GERD;STAIGER, WOLFGANG;BRODMANN, RAINER;GERSTORFER, OSKAR |
分类号 |
G01B11/26;G01B11/30;G01N21/88;G01N21/89;G01N21/892;G01N21/952;(IPC1-7):G01N21/86;G01B11/24 |
主分类号 |
G01B11/26 |
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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