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LIGHT-REFLECTOR TYPE ENCODING METHOD AND THE ENCODER

机译:反射镜型编码方法和编码器

摘要

A light reflector type encoder includes a rotatable disc (20) coupled to the subject under detection, by shaft (22). The disc has on its surface a large number of light transmittable graduations (24) provided at a uniform, highly accurate, pitch and radius. Graduations (24) are slits which allow light to pass through and thereby present a much different degree of reflectivity than the remaining surface of the disc (20). A fixed optical lattice (26) of the same diameter as disc (20), is positioned relative to end face (30A) of optical fibre (30). Within optical lattice (26) the number of graduations (slits) (28) is determined in relation to the light emitting area of optical fibre (30) which not only emits the light from a source within the processing unit (32).
机译:光反射器型编码器包括通过轴(22)耦合到被检测对象的可旋转盘(20)。盘在其表面上具有以均匀,高精度,螺距和半径设置的大量可透光的刻度(24)。刻度(24)是允许光通过的狭缝,从而呈现出与盘(20)的其余表面非常不同的反射率。相对于光纤(30)的端面(30A)定位与圆盘(20)相同直径的固定光学格子(26)。在光学格子(26)内,相对于光纤(30)的发光区域确定刻度(狭缝)(28)的数量,其不仅从处理单元(32)内的光源发射光。

著录项

  • 公开/公告号KR900004781B1

    专利类型

  • 公开/公告日1990-07-05

    原文格式PDF

  • 申请/专利权人 DU PONT;

    申请/专利号KR19840007637

  • 发明设计人 TANAKA TOSHIYASU;ARIGA SADAKAZU;

    申请日1984-12-04

  • 分类号G01D5/34;

  • 国家 KR

  • 入库时间 2022-08-22 06:12:43

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