Auto-focus travelling lens camera for three-dimensional photogra

Details Auto-focus travelling lens camera for three-dimensional photogra Auto-focus travelling lens camera for three-dimensional photogra

1988-02-16

1989-04-18

Mathews, A. A.

354294, G03B 3508

Patent

active

048231568

ABSTRACT:
An improved camera apparatus for three-dimensional photography conventionally includes a stationary frame, a camera body with a film holder for holding photographic film in a film plane and a controllable shutter for exposing film held in the film holder, and a focusable lens assembly attached to the body e.g. by bellows. The improved camera apparatus further includes a camera body carriage moveably mounted to the frame along a first range of movement transverse to the field of view of the camera lens, a vertical optical grating within the camera body immediately in front of the film holder and moveable over a second limited range of transverse movement relative to position of the camera body carriage with respect to the base, a lens assembly carriage moveably mounted to the frame for moving the lens assembly over a third limited range of transverse movement relative to the frame, and a lens assembly carriage position control responsive to focus position of the lens relative to the film plane and to the relative position of the camera body carriage with respect to the frame for moving the lens assembly carriage relative to the film holder over the third limited range of movement.

REFERENCES:
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patent: 3800307 (1974-03-01), Wechsler
patent: 4481050 (1984-11-01), Gundlach et al.
patent: 4488795 (1984-12-01), Winnek

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