Stereoscopic viewer for aerial photographs

Details Stereoscopic viewer for aerial photographs Stereoscopic viewer for aerial photographs

1983-12-08

1987-02-10

Corbin, John K.

G02B 2724

Patent

active

046419195

ABSTRACT:
The invention relates to a stereoscopic viewer for aerial photographs. In this viewer, optical means permit simultaneous examination, through two eyepieces, of corresponding points in two successive panoramic photographs in the film to be examined. The optical means comprise, for each optical path, on the one hand, a set of plane-mirrors and, on the other hand, a rotating system adapted to rotate the images about the corresponding viewing axis, the unit thus assuring an even number of reflections; the adjusting means comprise elements permitting at least one of the rotating systems to pivot about a fixed axis and/or the displacement of at least one of the plane-mirrors.

REFERENCES:
patent: 4221462 (1980-09-01), Huvers
patent: 4498735 (1985-02-01), Gresse et al.

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