Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1997-05-09
1999-12-07
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349 18, 359497, 356361, 356365, 356368, G02F 1133
Patent
active
059992409
ABSTRACT:
A retarder stack for transforming at least partially polarized light includes a first retarder and a second retarder. The first retarder has a first retardance and a first orientation and the second retarder has a second retardance and a second orientation both orientations with respect to the partially polarized light. The first retardance, first orientation, second retardance, and second orientation can be arranged to yield the desired polarization transformed light which includes a first spectrum and a second spectrum. The polarization of the first spectrum and the polarization of the second spectrum can be made orthogonal to each other. The polarizations can be linear or elliptical. If the polarization transformed light is linear, the directions of polarizations are different and in one case can be made perpendicular. If the polarization of the polarization transformed light is elliptical, then the polarizations are different and in on case can be made orthogonal in the general sense of orthogonality of polarization states.
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Johnson Kristina M.
Sharp Gary D.
ColorLink, Inc.
Parker Kenneth
Sikes William L.
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