Patent ID: 6713751
Filing Date: 2004-03-30
Classification: G10G,G10H

Abstract:
An optical sensor for converting a current position of a moving object to an electric signal, comprising:a converting unit generating a light, and converting an incident light to said electric signal; an optical guide member connected at one end thereof to said converting unit, and propagating said light and said incident light between said one end and the other end thereof; a sensor head unit connected to said other end of said optical guide member for radiating said light along an optical path and receiving said incident light, and having a first portion formed with a guide path which receives a part of said optical guide member and a second portion pinching said part of said optical guide member together with said first portion; and an optical element fixed to said moving object, and moved together with said moving object in such a manner as to cross said optical path for varying the amount of an optical property of said incident light depending upon said current position of said moving object.