Arthur P Kent

US Patent:

40171663, Apr 12, 1977

Filed:

Nov 18, 1974

Appl. No.:

5/524798

Inventors:

Arthur P. Kent - Forest Hills NY
Mortimer Marks - Beechhurst NY

Assignee:

Marks Polarized Corporation - Whitestone NY

International Classification:

G03B 3500

US Classification:

352 57

Abstract:

Stereo pairs which have printed on a single film strip are directed and focused upon a screen by an attachment for a standard motion picture projector. The images are overlapped and polarized at right angles to the other upon the screen by an optical device having abutting elements. The stereo pairs on the film are separated by an opaque band to define the edges of the projected image and mask element abutment. Indicia marks are provided on the film to enable the positioning of the right and left images on the film in the gate to avoid pseudo stereo projection. A film format for stereo pairs uses a dark bar centered at the aperture on the film or gate.