Liquid crystal cells – elements and systems – Particular structure – Interconnection of plural cells in series
Patent
1994-07-27
1997-05-06
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Interconnection of plural cells in series
349 98, 349171, G02F 11347, G02F 11335
Patent
active
056276664
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.
Board of Regents of the University of Colorado
Miller Charles
Sikes William L.
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