Fast Cholesteric Liquid Crystal Light Switch Based on Field-Controlled Total Internal Reflection
- 1 May 1996
- journal article
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals
- Vol. 282 (1) , 387-393
- https://doi.org/10.1080/10587259608037592
Abstract
A new fast cholesteric liquid crystal light switch with response times in the microseconds region is presented. Light is partially transmitted or totally reflected depending upon the field-controlled position of the optic axis in a uniformly aligned short-pitch cholesteric subjected on an electric field perpendicular to the helix. Its performance is temperature independent in a broad temperature range and a contrast ratio of 20:1 is achieved.Keywords
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