Optical micro-switch

Details Optical micro-switch Optical micro-switch

1975-01-20

1976-04-06

Stolwein, Walter

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250239, G01D 534

Patent

active

039492192

ABSTRACT:
Disclosed is a micro-switch employing a light source and a photo-responsive device disposed in optically interconnected cavities in a common housing. The optical path interconnecting the two cavities is controlled by an opaque reciprocal plunger having a plurality of apertures therethrough which may be placed in register with the optical path by movement of the plunger. The switch may be converted from a normally open to a normally closed switch, or vice versa, by rotation of the plunger to alternately select the aperture in the plunger which may be placed in register with the optical path.

REFERENCES:
patent: 3235741 (1966-02-01), Plaisance
patent: 3336482 (1967-08-01), Mierendorf et al.
patent: 3588512 (1971-06-01), Hollien
patent: 3796880 (1974-03-01), Dorey

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