Method of making high quality plastic lenses

Details Method of making high quality plastic lenses Method of making high quality plastic lenses

1978-02-13

1979-08-28

Lowe, James B.

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

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

250492R, 264 22, 425808, B29D 1100

Patent

active

041660889

ABSTRACT:
A method of making plastic lenses by casting a liquid monomer and a photosensitive catalyst between two transparent optical molds. One of the transparent molds having a convex lens on the outer surface to focus ultraviolet light toward the center of the monomer activating the photosensitive catalyst and initiating polymerization in the center of the plastic lens material. Polymerizing the monomer to form a solid lens having optical surfaces formed by the transparent molds.

REFERENCES:
patent: 2525664 (1950-10-01), Godsby et al.
patent: 3056166 (1962-10-01), Weinberg
patent: 3761208 (1973-09-01), Boudet
patent: 4011456 (1977-03-01), Bredewater et al.
patent: 4022855 (1977-05-01), Hamblen
patent: 4039827 (1977-08-01), Zdrok et al.
patent: 4073577 (1978-02-01), Hofer
patent: 4113224 (1978-09-01), Clark et al.

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