发明名称 |
Detector array for optical encoders |
摘要 |
A photodiode detector array for optical encoders includes a plurality of photodiodes, each of the photodiodes providing a position signal when the detector array moves relative to the scale. A plurality of switching elements is provided for selectively combining each of the photodiodes with other photo diodes in a defined manner. The switching elements allow the photodiodes to be unambiguously combined for at least two different scale radii so that a defined number of position signals is generated in each case. The combination of the photodiodes differs between the at least two different scale radii.
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申请公布号 |
EP1630528(A2) |
申请公布日期 |
2006.03.01 |
申请号 |
EP20050015944 |
申请日期 |
2005.07.22 |
申请人 |
DR. JOHANNES HEIDENHAIN GMBH |
发明人 |
MAYER, ELMAR, DR.;FRANKLIN, RUTH E. |
分类号 |
G01D5/347 |
主分类号 |
G01D5/347 |
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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