Light-reflector type encoding method and the encoder

Details Light-reflector type encoding method and the encoder Light-reflector type encoding method and the encoder

G - Physics

08

C

340/136.3

G08C 21/00 (2006.01) G01D 5/347 (2006.01)

Patent

CA 1240757

TITLE LIGHT-REFLECTOR TYPE ENCODING METHOD AND THE ENCODER Abstract of the Disclosure: A light-reflector type encoding method which comprises emitting light from one end of an optical fiber to a mobile body which moves relatively to said end of the optical fiber, through an optical lattice disposed at a fixed position relatively to said fiber end, receiving the reflected light from at least plural light-reflective graduations provided in the light-emitted zone of said mobile body through the optical lattice, and detecting the received reflected light with a photoelectric conversion element connected to the other end of the optical fiber. The present invention also provides a light-reflective type encoder suitable for carrying out the encoding method.

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