Patent
1985-11-05
1990-04-03
Sikes, William L.
350 9613, 350 9615, 350347R, 350347E, 350347V, G02B 628
Patent
active
049135090
ABSTRACT:
A fail-safe port apparatus includes a low loss liquid crystal optical switching device providing first and second light paths, the first path providing a failure, or default, mode path and the second path providing an operating mode.
REFERENCES:
patent: 4137523 (1979-01-01), Mukaiyama
patent: 4269511 (1981-05-01), Erwin
patent: 4278327 (1981-07-01), McMahon et al.
patent: 4478494 (1984-10-01), Soref
ITT Corporation
Ngo John
Sikes William L.
Twomey Thomas N.
Werner Mary C.
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