Patent
1975-03-20
1977-08-02
Griffin, Donald A.
G03B 3508
Patent
active
040400719
ABSTRACT:
The invention relates generally to stereo photography and particularly to a simple method and apparatus which enables an unskilled individual to produce three-dimensional stereoscopic pictures through the use of inexpensive, readily available cameras and viewing devices. In the practice of the invention, two cameras are mounted in an adjacent vertical orientation in a novel housing or holder, interaxial spacing between the cameras being either fixed or adjustable within defined limits to produce slide transparencies croppable according to the invention and mountable on available reel mounts for viewing with standard viewing devices.
REFERENCES:
patent: 1991924 (1935-02-01), Dolan
patent: 2458466 (1949-01-01), Campbell
patent: 2609738 (1952-09-01), Staehlin
patent: 2807990 (1957-10-01), Perlin
patent: 2891458 (1959-06-01), Grimal
patent: 3608458 (1971-09-01), Ratliff
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