Patent
1988-08-11
1990-05-22
Sikes, William L.
350 9622, G02B 604
Patent
active
049272306
ABSTRACT:
An optical switch array includes N (N being 2 or greater integer) light-emitting elements arranged in a predetermined direction and each emitting a light independently modulated in accordance with an input signal, a mask having N.times.M (M being 2 or greater integer) segments arranged in the form of a matrix in the predetermined direction and a direction perpendicular thereto, some of the segments transmitting therethrough or reflecting the lights emitted from the light-emitting elements, the mask having repetitively formed thereon a predetermined light transmitting or reflecting pattern including two or more of the segments as a unit, M light-receiving elements arranged in a direction perpendicular to the predetermined direction, receiving the lights transmitted through or reflected by the mask and independently outputting signals, and shutters disposed in the optical path from the light-emitting elements to the light-receiving elements and arbitrarily openable-closable at each segment unit constituting the pattern of the mask.
REFERENCES:
patent: 4601537 (1986-07-01), Saccocio
patent: 4688891 (1987-08-01), Carratt et al.
patent: 4730895 (1988-03-01), Siedband et al.
patent: 4859012 (1989-08-01), Cohn
Canon Kabushiki Kaisha
Sikes William L.
Wise Robert E.
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