公开(公告)号：US20070241943A1

公开(公告)日：2007-10-18

申请号：US11404110

申请日：2006-04-14

申请人： Teong Tan ,  Premkumar Ramachandr ,  Yee Chin ,  Cheng Tan ,  Weng Wong

发明人： Teong Tan ,  Premkumar Ramachandr ,  Yee Chin ,  Cheng Tan ,  Weng Wong

IPC分类号： H03M7/00

CPC分类号： G01D5/34715

摘要： A reflection-based optical encoding apparatus for the detection of position and/or motion of a mechanical device includes an encoding medium having at least a first reflective portion, and an encoder housing having a light-emitting source and a light-detecting sensor embedded within, the encoder housing being placed in proximity to the encoding medium such that a functional light path can be established from the light-emitting source to the light-detecting sensor via the first reflective portion of the encoding medium. The encoder housing includes a first flat facet positioned between the light-emitting source and the encoding medium, the first flat facet having a first angle relative to a common geometric plane such that light passing from the light-emitting source to the encoding medium is refracted along a first angled path in a manner that the refracted light strikes a desired location of the encoding medium.

摘要翻译： 用于检测机械装置的位置和/或运动的基于反射的光编码装置包括具有至少第一反射部分的编码介质和具有嵌入在其中的发光源和光检测传感器的编码器壳体 编码器壳体被放置在编码介质附近，使得可以通过编码介质的第一反射部分从发光源到光检测传感器建立功能光路。 编码器壳体包括位于发光源和编码介质之间的第一平面，第一平面相对于共同的几何平面具有第一角度，使得从发光源通向编码介质的光被折射 沿着第一有角度的路径以折射光照射到编码介质的期望位置的方式。