Zoom lens mount assembly

Details Zoom lens mount assembly Zoom lens mount assembly

1987-09-29

1989-05-30

Corbin, John K.

350255, 35419511, G02B 1500, G02B 704

Patent

active

048345148

ABSTRACT:
The present invention relates to a zoom lens mount assembly for use in optical apparatus such as photographic camera, video camera or the like. The zoom lens mount assembly of this type usually comprises a plurality of frames consisting of a stationary frame and movable frames assembled into a multilayered frame structure. The present invention provides a novel and improved zoom lens mount assembly in which the innermost layer is constructed from a plurality of frames into a single-layered structure and thereby an inner diameter of the lens mount assembly is dimensioned as largely as possible without making the lens mount assembly as a whole bulky. The present invention also permits the cam frame to be molded of synthetic resin material or the like and permits this cam frame to be mounted in a bayonet fashion.

REFERENCES:
patent: 3744884 (1973-07-01), Filipovich et al.
patent: 4255020 (1981-03-01), Yukio
patent: 4307951 (1981-12-01), Saito et al.
patent: 4466019 (1984-08-01), Sakashita
patent: 4506959 (1985-03-01), Hama

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