Electronically-controllable polarization independent liquid crystal optical medium and devices using same
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United States of America Patent
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Oct 29, 2013
Grant Date -
Jun 21, 2007
app pub date -
Dec 19, 2006
filing date -
Dec 19, 2005
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Abstract
A liquid crystalline optical medium includes polymer stabilized liquid crystal material. The polymer stabilized liquid crystal material includes a short pitch cholesteric liquid crystal material stabilized by a polymer material. The effective phase retardation of the polarization independent liquid crystal optical medium can be controlled by external (for example, electric and magnetic) fields.
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