Optical path switching mechanism

Details Optical path switching mechanism Optical path switching mechanism

1986-06-03

1988-04-26

Punter, William H.

350401, G02F 129

Patent

active

047400617

ABSTRACT:
An optical path switching mechanism includes a plurality of light deflecting elements adapted to transmit an optical beam in a direct-advance direction or a perpendicular direction depending on polarizing ingredients, and a plurality of polarizing ingredient converting elements adapted to convert one ingredient of a passing optical beam into the other polarizing ingredient. The light deflecting elements are arranged such that the direct-advance optical beam forms a communication optical path commonly used by the respective light deflecting elements and at the same time the perpendicular light deflecting optical beam forms branched optical paths each for the exclusive use of the individual light deflecting element. The light polarizing ingredient converting elements are arranged on the communication optical path of the light deflecting elements such that the light polarizing ingredient converting elements are alternately disposed with the respective light deflecting elements. The light polarizing ingredient converting elements are selectively actuatably.

REFERENCES:
patent: 2182142 (1939-12-01), Ball et al.
patent: 2745316 (1956-05-01), Sziklai
patent: 3501220 (1970-03-01), Bernal et al.
patent: 4335939 (1982-06-01), Stovell et al.
Denton, R. T. "The Laser and PCM" Bell Lab. Record, 6-1968, pp. 175-179.

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