Motion picture system for single strip 3-D filming

Details Motion picture system for single strip 3-D filming Motion picture system for single strip 3-D filming

1981-11-17

1984-08-07

Hayes, Monroe H.

Optics: motion pictures

Stereoscopic cameras and/or projectors

Sequential recording or reproducing left-right images

350130, G03B 3502

Patent

active

044640285

ABSTRACT:
Lens system for 3-D filming comprises a pair of negative achromatic lenses horizontally spaced substantially on the interpupillary distance. Behind these front lenses, a pair of tilted rhomboid prisms fold the optical paths to be closely positioned one above the other. On these paths, rear lens systems focus the images onto the film plane in upper and lower frame halves. The forward negative achromatic lenses are adjustable fore and aft for focus adjustment, and the rear lens systems are laterally adjustable for convergence control.

REFERENCES:
patent: 1512785 (1924-10-01), Mittasch
patent: 2015261 (1935-09-01), Eckler
patent: 2380216 (1945-07-01), Carter
patent: 2463311 (1949-03-01), Ramsdell
patent: 3189915 (1965-06-01), Tondreau
patent: 3363966 (1968-01-01), Hoch
patent: 3631786 (1972-01-01), Crapsey
patent: 3825328 (1974-07-01), Hoch
The British Journal of Photography, Dec. 12, 1952, p. 615.

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