发明名称 Optical positioning device
摘要 <p>The optical position measuring device has a material measure (10) which is connected with one of the two objects and has an incremental line (12) extended in measuring direction (x) and a reference marking (11) at a reference position (x-REF). A scanning unit is connected with the other of the both objects and has a divergent radiated light source, one or multiple grids and a reference signal-detector arrangement. The reference signal-detector arrangement has four detector arrays with multiple detector elements.</p>
申请公布号 EP2525195(B1) 申请公布日期 2016.01.20
申请号 EP20120166338 申请日期 2012.05.02
申请人 DR. JOHANNES HEIDENHAIN GMBH 发明人 HERMANN,, MICHAEL
分类号 G01D5/36;G01D5/38 主分类号 G01D5/36
代理机构 代理人
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