Phase retarder film

Details Phase retarder film Phase retarder film

1997-10-23

1999-07-20

Spyrou, Cassandra

Optical: systems and elements

Polarization without modulation

Polarization variation over surface of the medium

359492, 359494, G02B 530

Patent

active

059263130

ABSTRACT:
As a phase retarder film in which at least one oblique evaporation layer of an inorganic dielectric having positive refractive index anisotropy and having its principal optic axis tilted 20 degrees to 70 degrees from the direction of the normal to the film is formed on at least one surface of a transparent polymer film with an intermediate layer between, a large area film is easily and inexpensivly obtained.

REFERENCES:
patent: 4813768 (1989-03-01), Hamaguchi et al.
patent: 5430566 (1995-07-01), Sakaya et al.
patent: 5504603 (1996-04-01), Winker et al.
T. Motohiro et al., "Thin film retardation plate by oblique deposition", Applied Optics, vol. 28, No. 13, Jul. 1, 1989, pp. 2466-2482.

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