Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1997-05-05
2000-10-31
Parker, Kenneth
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349198, 349 18, G02F 11335
Patent
active
061410691
ABSTRACT:
This invention provides a phase modulator comprising an electro-optically rotatable smectic liquid crystal half-wave retarder in combination with a cholesteric liquid crystal circular polarizer. Rotation of the half-wave retarder varies the phase delay of the modulator. A polarizing interferometer is provided utilizing the phase modulator of this invention in combination with a second cholesteric circular polarizer and a linear polarizer. A tunable Fabry-Perot resonator which does not require ordinary mirrors is provided utilizing the phase modulator of this invention in combination with a second cholesteric circular polarizer.
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Johnson Kristina M.
Sharp Gary D.
Stockley Jay E.
Parker Kenneth
University Technology Corporation
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