发明名称 OPTICAL ELEMENT
摘要 <p>An optical element for generating diffraction orders for an encoder apparatus, in which the optical element comprises an array of diffraction features (30) arranged such that the spacing ((s1), (s2), (s3), (s4)) between the centres of adjacent diffraction features varies irregularly from one pair of adjacent features to the next.</p>
申请公布号 WO2014096764(A1) 申请公布日期 2014.06.26
申请号 WO2013GB52684 申请日期 2013.10.15
申请人 RENISHAW PLC 发明人 SLACK, JASON, KEMPTON
分类号 G01D5/36 主分类号 G01D5/36
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