发明名称 Encoder element.
摘要 An encoder element (1) with high spatial resolution comprising an information layer with optically readable information, wherein the information is in the form of successive pits (10) written in by a laser beam and wherein the pits possess a specific optical property that substantially differs from that of the surrounding surface of said information layer.
申请公布号 EP0638810(A1) 申请公布日期 1995.02.15
申请号 EP19940201941 申请日期 1994.07.06
申请人 AGFA-GEVAERT NAAMLOZE VENNOOTSCHAP 发明人 COSTROP, DIRK, C/O AGFA-GEVAERT N.V.;BRUYNDONCKX, JAN, C/O AGFA-GEVAERT N.V.;ULRIX KRISTOF, C/O ACE
分类号 G01D5/249;G01D5/347;G01P3/486 主分类号 G01D5/249
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