专利名称：Absolute position detection type
photoelectric encoder
发明人：Kouhei Kusano,Kouji Morimoto申请号：US12385999申请日：20090427
公开号：US20090294637A1公开日：20091203
专利附图：
摘要：In an absolute position detection type photoelectric encoder devised so as todetect a pseudorandom pattern disposed on a main scale by means of a plurality ofimaging optical systems, assembling of the absolute position detection type
photoelectric encoder is facilitated and production cost thereof is reduced by providing:a single light-receiving array element disposed on the imaging surfaces of the imagingoptical systems, which incorporates a greater light-receiving array portion in the lengthmeasurement direction than the light-receiving range of the respective imaging opticalsystems; a window signal storing portion for storing a window signal showing a light-receiving range of the respective imaging optical systems; and a window signal
comparison portion for obtaining signals corresponding to individual imaging ranges bycomparing scanning signals of the light-receiving array element with window signals.
申请人：Kouhei Kusano,Kouji Morimoto
地址：Kawasaki-shi JP,Kawasaki-shi JP
国籍：JP,JP
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