Stereo viewing

Details Stereo viewing Stereo viewing

1975-07-07

1976-09-14

Sacher, Paul A.

350 75, 350 76, 350141, 350143, G02B 2722, G02B 706, G02B 712

Patent

active

039803945

ABSTRACT:
A stereoscopic camera having wide angle lenses separated by the normal interpupillary distance photographs a scene on separate 38 mm-square frames of 120-size film strip to provide a left slide and a right slide. The stereoscopic viewer for viewing these slides has separate left eye and right eye assemblies with wide angle lenses having the same focal length as the lenses in the camera and separate supports for the slides. Each of the lenses is individually focusable and provides a borderless, circular field of view. The respective assemblies are relatively displaceable to enable the observer to set the interpupillary distance that best suits him. The slides are illuminated with light reflected from a generally cylindrical opaque screen and originating from a light bulb substantially at the axis of the cylindrical screen.

REFERENCES:
patent: 1808176 (1931-06-01), Pieper et al.
patent: 2336288 (1943-12-01), Peterson
patent: 2787191 (1957-04-01), Horton et al.
patent: 2814966 (1957-12-01), Crossley
patent: 3376381 (1968-04-01), Ratliff

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