Reflection type optical rotary encoder

Details Reflection type optical rotary encoder Reflection type optical rotary encoder

1985-01-16

1987-03-17

LaRoche, Eugene R.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

324175, G01D 534

Patent

active

046509950

ABSTRACT:
In a reflecting type optical rotary encoder capable of detecting a number of rotation and rotating direction of a code wheel by projecting light emitted from a light emitting element onto reflecting portions provided on the code wheel through a first optical fiber, and by guiding light reflected from the reflecting portions into light receiving elements through second optical fibers, end portions adjacent to the code wheel of the first and second optical fibers are brought into abutment with each other, and an angle substantially equal to 90.degree. is formed between an end surface and a side surface of each of the second optical fibers.

REFERENCES:
patent: 4033698 (1977-07-01), Demsky et al.

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