Zoom lens mount assembly

Details Zoom lens mount assembly Zoom lens mount assembly

1989-07-14

1991-08-06

Arnold, Bruce Y.

Optical: systems and elements

Lens

With variable magnification

35419512, 354400, 359705, G02B 1500

Patent

active

050371878

ABSTRACT:
A zoom lens mount assembly in which a zooming cam frame is moved along the optical axis while rotating therearound and respective movable frames supporting an optical system are driven by such rotation and movement of the cam frame to effect a desired zooming. In another aspect there is provided a focussing cam frame adapted to be moved along the optical axis and to drive a movable frame provided with a focussing optical system and a program lens shutter.

REFERENCES:
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
patent: 4548471 (1985-10-01), Schlapp et al.
patent: 4806000 (1989-02-01), Shiokama et al.
patent: 4834514 (1989-05-01), Atsuta et al.

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