Opto-photo-electric switch

Details Opto-photo-electric switch Opto-photo-electric switch

1991-03-01

1992-07-14

Howell, Janice A.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

359257, G02F 103

Patent

active

051305283

ABSTRACT:
A heterojunction optical switch is taught. Briefly stated, birefringence in the form of a Pockel Cell is utilized such that biasing of the Pockel Cell permits the passage of light therethrough. Preferably, a light detector and resistor are electrically in parallel with the Pockel Cell such that light impinging upon the light detector causes the Pockel Cell to be reverse biased with the result that a separate light source may pass through the Pockel Cell. In this fashion, the Pockel Cell operates as a true optical switch.

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