The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 02, 1976
Filed:
Oct. 21, 1974
Alvin M Marks, Whitestone, NY (US);
Mortimer Marks, Whitestone, NY (US);
Other;
Abstract
This invention relates to a reflex camera device having a single lens for the photography of right and left images from an object space transmitted as first and second light ray bundles from two positions separated by an interocular distance onto a single frame of a single film strip; a first set of mutually extinguishing filters such as polarizers, one filter of the set along each of the first and second light ray bundles; a single frame aperture; a second set of mutually extinguishing filters near the image plane to separate the first and second light ray bundles from each position respectively into right and left adjacent images onto the single frame; means to control convergence, focus and interocular distance; and a reflex viewer containing a third set of mutually extingusihing filters to enable the simultaneous viewing and photographing of right and left adjacent images. SU