Optical encoder with alignment of source, detector, and modulato

Details Optical encoder with alignment of source, detector, and modulato Optical encoder with alignment of source, detector, and modulato

1996-11-25

1997-12-16

Allen, Stephone

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

25023116, G01D 534

Patent

active

056988494

ABSTRACT:
An optical encoder for a rotating shaft having a radiation source, a radiation detector and a radiation modulator interposed therebetween. The radiation source, the radiation modulator and the radiation detector are positionally configured and mechanically connected to one another and to the shaft in a manner to be in axial and radial alignment with one another relative to the rotating shaft.

REFERENCES:
patent: 3098152 (1963-07-01), Von Mathes
patent: 4132890 (1979-01-01), Garcia et al.
patent: 4184071 (1980-01-01), Fryer et al.
patent: 4218615 (1980-08-01), Zinn, Jr.
patent: 4319134 (1982-03-01), Weber
patent: 4343992 (1982-08-01), Blaser
patent: 4345149 (1982-08-01), Blaser

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