High contrast light shutter system
A light shutter system (10) incorporates a liquid crystal cell (12) operating as a variable optical retarder to selectively produce opaque and transmissive optical states corresponding to the respective first and second amounts of system optical retardation. The cell switches between a residual amou...
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Main Author | |
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Format | Patent |
Language | English French German |
Published |
02.01.1992
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Subjects | |
Online Access | Get full text |
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