1985-11-05
1988-11-15
Corbin, John K.
350 9614, 350337, 350347V, G02F 1133
Patent
active
047844701
ABSTRACT:
An optical switching device includes first and second polarization changing cells, the polarization changing cells utilize twisted nematic liquid crystal material to effect the change of polarization. The resultant device exhibits reduced cross talk between the output ports thereof and requires less voltage to effect the switching of the output beam therebetween.
REFERENCES:
patent: 3980395 (1976-09-01), Giallorenzi et al.
patent: 4201442 (1980-05-01), McMahon et al.
patent: 4478494 (1984-10-01), Soref
Corbin John K.
ITT Defense Communications a Division of ITT Corporation
Lerner Martin
Twomey Thomas N.
Walsh Robert A.
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