发明名称 |
Method and apparatus for examining test pieces |
摘要 |
A measurement system is used in particular to detect defects in test objects. To that end, the test object is lighted from a lighting unit that includes a plurality of laser diodes. The beam cones of the individual laser diodes generate a common lighting spot on the test object. The object being measured is observed interferometrically, where the interferometer is part of a measurement head. An electronic pattern sensor detects interference patterns generated by the interferometer.
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申请公布号 |
US6417916(B1) |
申请公布日期 |
2002.07.09 |
申请号 |
US20000566727 |
申请日期 |
2000.05.09 |
申请人 |
DENGLER STEFAN;MAEHNER BERNWARD |
发明人 |
DENGLER STEFAN;MAEHNER BERNWARD |
分类号 |
G01B11/16;(IPC1-7):G01L1/24;G01R31/308 |
主分类号 |
G01B11/16 |
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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