Injection molding of optical lenses and optical molds

Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating

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Details

264 22, 264 25, 425808, B29D 1100

Patent

active

042845912

ABSTRACT:
A method of maintaining contact between the injected molded resinous optical surface and the mold by rapid filling of the mold through a restricted orifice and by mechanically moving the mold against the resin as it cools and shrinks.

REFERENCES:
patent: 2233057 (1941-02-01), Luce
patent: 4091057 (1975-08-01), Weber

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