Patent
1979-02-26
1980-09-09
Henry, Jon W.
G02B 2722
Patent
active
042214629
ABSTRACT:
A stereoscopic viewer adapted to view the images of a panoramic camera film in particular without having to cut and position the image frames side by side and while also readily compensating for the variation in physical separation between points at the center and at the edge of the images frames. In one embodiment, this stereoscopic viewer comprising a base, a viewing table mounted on the base and guiding a panoramic camera film in one direction, guide rods mounted on the base, a frame slidable on the guide rods transversely of the longitudinal direction of the film, and having a cam providing compensation for the variation in physical separation, a pair of optical viewing units including each an eyepiece and an objective, the optical viewing units being bodily displaceable longitudinally and transversely with respect to the film, a link interconnecting the optical viewing units at the objective end thereof, and one optical viewing unit being in cam following engagement with the cam whereby when one objective registers with a point or feature of one image frame, the other objective is caused to register with the corresponding point or feature of the other image frame. In another embodiment, a carriage replaces the base to support the viewing table, guide rods, and frame and the eyepieces remain fixed such that the user does not have to move his head.
REFERENCES:
patent: 2866382 (1958-12-01), Gruner et al.
Canadair Limited
Henry Jon W.
Lebrun A.
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