Patent
1987-04-01
1989-02-28
LaRoche, Eugene R.
350342, G02F 1135, G02F 101
Patent
active
048079766
ABSTRACT:
A pulsed readout technique is described for liquid crystal light valves which eliminates the problem of readout beam leakage through the light valve mirror. The readout beam is pulsed on only when the light valve's semiconductor layer is out of a depletion state. This can occur during an accumulation state or, in certain applications, during a specially inserted quiescent period in the light valve voltage cycle. The invention is applicable to light valves with various types of modulating inputs, and can be used with either dielectric or metal matrix mirrors.
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Braatz Paul O.
Efron Uzi
Little Michael J.
Owechko Yuri
Schwartz Robert N.
Duraiswamy V. D.
Hughes Aircraft Company
Karambelas A. W.
LaRoche Eugene R.
McCutheon Nathan W.
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