Camera having focal length adjusting lens

Details Camera having focal length adjusting lens Camera having focal length adjusting lens

1988-12-16

1990-01-16

Gellner, Michael L.

G03B 310

Patent

active

048946729

ABSTRACT:
A camera having a focus adjusting lens assembly, including a camera body, a lens barrel movable in the optical axis direction with respect to the camera body, a first variable power lens group which is supported to move in the optical axis direction with respect to the lens barrel, a second variable power lens group integrally connected to the lens barrel so as to move therewith, pantograph linkages which contractibly connect the camera body and the lens barrel to vary the distance therebetween, and an actuator for moving the first power lens group to a predetermined position in the lens barrel in accordance with the deformation of the pantograph.

REFERENCES:
patent: 4277158 (1981-07-01), Zawodny
patent: 4792822 (1988-12-01), Akuyama et al.

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