Method of making a lens barrel assembly

Details Method of making a lens barrel assembly Method of making a lens barrel assembly

1981-06-17

1983-05-24

Lowe, James B.

Plastic and nonmetallic article shaping or treating: processes

With step of making mold or mold shaping, per se

Utilizing surface to be reproduced as an impression pattern

29423, 29424, 295271, 264161, 264242, 264317, B29C 114, B29D 100

Patent

active

043850235

ABSTRACT:
A lens barrel assembly consisting essentially of a first and second barrel member having helicoid screw threads therebetween which enable said barrel members to be moved axially upon relative rotation therebetween is formed in a molding process wherein one of said barrel members is utilized as a mold element in the formation of the other barrel member with the other barrel member being formed by injection molding of resin material injected into a cavity defined at least in part by the first barrel member. The lens barrel assembly is formed with the barrel members in operative juxtaposition when they are removed from the mold cavity.

REFERENCES:
patent: 1863209 (1932-06-01), Shank
patent: 2999276 (1961-09-01), Morin
patent: 3031722 (1962-05-01), Gito
patent: 3286010 (1966-11-01), Gromingen
patent: 4021524 (1977-05-01), Grimsley
patent: 4115505 (1978-09-01), Metabi

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