Stereoscopic motion picture-circular to linear scan translator-m

Optics: motion pictures – Stereoscopic cameras and/or projectors – Interlineated

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Details

352 43, 352 81, 353 10, G03B 3500

Patent

active

042316421

ABSTRACT:
My invention relates to photographing scenes with a standard motion picture camera in which there is a relative motion between the scene and camera with the purpose of stereoscopic viewing of the motion picture without the need for viewing aids at the eye. The system is compatible with scenes photographed without this relative motion but the reproduction is flat. The film (or other appropriate media) is arrayed in a vertical plane and constrained to move horizontally around a segment of a circle of radius 2R. At the center of the film circle is a film motion compensator which can be a multi-faceted mirror drum of radius R. The film is rapidly scanned about the center of this circle by a scan projector. Projection optics on the projector, project the sequential film frames onto a relatively large circular cylindrical screen having its vertical axis coincident with the projector axis. The screen is constructed of small vertical segments which are corrugated to cause the incident projection rays to vertically scatter and horizontally reflect such that all rays for a given projection location on the projection circle, will converge to a vertical aerial exit slit. The exit slit moves linearly while the projector moves in a circular arc about a fixed lamp. If the film and motion compensator are in locked motion, stereoscopic motion pictures can be observed by a number of people at the same time without any form of visual aid at their eyes.

REFERENCES:
patent: 3482913 (1969-12-01), Glenn
patent: 3815979 (1974-06-01), Collender
patent: 4089597 (1978-05-01), Collender
patent: 4158487 (1979-06-01), Collender
patent: 4176923 (1979-12-01), Collender

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