Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1993-06-21
1995-12-19
Gross, Anita Pellman
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
G02F 11337
Patent
active
054773580
ABSTRACT:
A liquid crystal cell including chiral nematic liquid material with negative dielectric anisotropy. The cell is placed between two orthogonal polarizers. In the absence of an applied field, the liquid crystal molecules assume a homeotropic alignment. The liquid crystal molecules assume a twisted pattern in the field-on state.
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Crandall Karl A.
Fisch Michael R.
Petschek Rolfe
Rosenblatt Charles
Case Western Reserve University
Gross Anita Pellman
Miller Charles
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