Lens barrel comprised of a metal-encased plastic cylinder

Details Lens barrel comprised of a metal-encased plastic cylinder Lens barrel comprised of a metal-encased plastic cylinder

1996-04-02

1999-03-02

Lee, Eddie C.

Photography

Having variable focal length of camera objective

396529, G03B 1700

Patent

active

058782877

ABSTRACT:
In a lens mount system of a camera including a plurality of lens mounts relatively moving each other by a cam system, at least one of the lens mounts has a plastic cylinder formed cam grooves and a seamless aluminum cylinder provided around the plastic cylinder so as to wrap the plastic cylinder.

REFERENCES:
patent: 4297002 (1981-10-01), Meatabi
patent: 5289221 (1994-02-01), Yoon
patent: 5414213 (1995-05-01), Hillburn

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