Collapsible mounting type camera with zoom lens

Details Collapsible mounting type camera with zoom lens Collapsible mounting type camera with zoom lens

1988-11-16

1990-09-18

Brown, Brian W.

G03B 118

Patent

active

049581783

ABSTRACT:
A camera with a zoom lens system having at least front and rear lens groups each comprising at least one lens, comprises a movable lens barrel holding the front lens group and being axially movable rearwardly and forwardly relative to a camera body and a moving mechanism for causing the axial movement of the movable lens barrel. The moving mechanism comprises a first cam member provided in the movable lens barrel and a rotatable lever coacting with the first cam member for causing the axial movement of the movable lens barrel, the first cam member having first and second straight cam sections for causing the axial movement of the movable lens barrel between front and rear axial positions and beyond the rear positions, respectively, and further comprises a second cam member provided in the camera body and a bell crank lever rotatably mounted on the movable lens barrel and coacting with the second cam member and the second lens group for shifting the rear lens group relative to the front lens group when the movable lens group is moved between the front and rear axial positions so as to change the zoom lens system between the longest and the shortest focal length and for moving the front and rear lens groups conjointly as a unit when the movable lens barrel is moved beyond the rear axial position, thereby collapsing the movable lens barrel at least almost fully within the camera body.

REFERENCES:
patent: 4779964 (1988-10-01), Ozawa et al.
patent: 4789875 (1988-12-01), Wakabayashi et al.

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