Stereoscopic viewer and replaceable cartridge therefor

Details Stereoscopic viewer and replaceable cartridge therefor Stereoscopic viewer and replaceable cartridge therefor

1977-02-28

1979-03-06

Corbin, John K.

G02B 2702

Patent

active

041427785

ABSTRACT:
A stereoscopic viewer and film cartridge combination is provided in which a viewer body having opposite sides, a front provided with a pair of viewing lenses spaced eye distance apart, and an open rear is removably combined with a cartridge for holding a film strip having stereoscopic pairs of pictures arranged along the length thereof. The cartridge is smaller than the open rear of the viewer so as to be receivable therein and withdrawable therefrom, and the viewer includes support means movable in the viewing direction and removably engageable with the cartridge so that the cartridge can be supported by the support means and moved to bring the film strip contained within the cartridge into the focal plane of the pair of lenses. The film strip preferably contains pairs of pictures separated by a distance which is greater than eye distance, and the cartridge includes means for forcing the film to traverse an undulating path between spaced apart viewing positions separated by eye distance.

REFERENCES:
patent: 2573543 (1951-10-01), Childs
patent: 2709401 (1955-05-01), Jaros
patent: 2814966 (1957-12-01), Crossley
patent: 3722983 (1973-03-01), Brassington

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