Optical transducer

Details Optical transducer Optical transducer

1981-01-14

1983-06-07

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Housings

250237G, H01J 314

Patent

active

043873006

ABSTRACT:
An improved optical transducer includes optical transmitter and receiver heads and an encoder plate movable therebetween on channel-shaped tracks integral in part with an inner housing. The encoder plate, and optical heads are disposed in an optical fluid which minimizes light refraction between those optical components, cushions against shock and vibratory loading, and lubricates the encoder plate tracks. The transducer includes an input shaft connected to the encoder plate by means of a coupling which isolates the encoder plate from misalignments of the input shaft and eliminates free-play in the connection between the encoder plate and input shaft, thereby eliminating backlash in the reciprocation of the encoder plate for improved transducer accuracy.

REFERENCES:
patent: 3046542 (1962-07-01), Hager
patent: 3360635 (1967-12-01), Wolf
patent: 3432676 (1969-03-01), Lindberg
patent: 3590261 (1971-06-01), Snook
patent: 3742233 (1973-06-01), Gorgens
patent: 3786238 (1974-01-01), Heisner
patent: 3815125 (1974-06-01), May et al.
patent: 3818224 (1974-06-01), Schmidt
patent: 3831024 (1974-08-01), Gill
patent: 3975633 (1976-08-01), Larkin
patent: 4011448 (1977-03-01), Hordeski
patent: 4110611 (1978-08-01), Tann et al.
patent: 4143267 (1979-03-01), Johnson et al.

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