Method of manufacturing an optical compensator

Details Method of manufacturing an optical compensator Method of manufacturing an optical compensator

1991-08-19

1992-12-15

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Utilizing plasma, electric, electromagnetic, particulate, or...

264 26, 264102, 264345, 264346, B29C 7102, B29D 1100

Patent

active

051714884

ABSTRACT:
An optical compensator plate is prepared by applying heat and pressure to an ionomer resin in an autoclave to form a resin film having a birefringence, annealing the resin film at a temperature range not less than the softening temperature and not higher than the melting point of the resin, e.g. 60.degree.-100.degree. C. for at least about 30 minutes.

REFERENCES:
patent: 3632841 (1972-01-01), Fortin
patent: 4133775 (1979-01-01), Bloom
patent: 4360483 (1982-11-01), Ayres
patent: 4361527 (1982-11-01), Rau
patent: 4385806 (1983-05-01), Fergason
patent: 4614634 (1986-09-01), Weber et al.
patent: 4701028 (1987-10-01), Clerc et al.
patent: 4847033 (1989-07-01), Carroll, Jr.

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