发明名称 |
Optical sensor and method for optical inspection of surfaces |
摘要 |
<p>The sensor has telecentric laser scanner (12) comprises a laser (1) for approximately perpendicular lighting of a flat surface area (5), a scanning reflector (2) and a telecentral optics (4) for guiding lighting and detection beams. A detecting unit (11) has a detector optics system (8) and a central slit (9), which is positioned concentrically near by the detector optics system in direction of the tele-central laser scanner. A detecting unit also has a super sensitive photo-multiplier for the collection of the scattered light, which runs from defects on plane surface area and a photo-multiplier (6) upstream slit diaphragm (7). An independent claim is also included for a method for collection of point shaped, linear shape or laminar defects at plane surface area.</p> |
申请公布号 |
EP1850119(A1) |
申请公布日期 |
2007.10.31 |
申请号 |
EP20070105607 |
申请日期 |
2007.04.04 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
STOCKMANN, MICHAEL;WEBER, MARTIN;HEINE, WOLFGANG;SPRIEGEL, DIETER |
分类号 |
G01N21/896;G01N33/38;G02B21/00 |
主分类号 |
G01N21/896 |
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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