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:
Sep. 13, 1983
Filed:
May. 22, 1981
Lo I Yin, Silver Spring, MD (US);
Abstract
A multi-pinhole aperture lead screen (22) forms an equal plurality of invisible mini-images having dissimilar perspectives of an x-ray and gamma-ray emitting object (ABC) onto a rear-earth phosphor layer (24) which, in turn, provides visible light mini-images directly into a visbile light image intensifier (26). A viewing screen (34/48) having an equal plurality of dissimilar perspective apertures distributed across its face in a geometric pattern identical to the lead screen, provides a viewer with a real, pseudoscopic image (A'B'C') of the object with full horizontal and vertical parallax. Alternatively, a third screen (34) identical to the viewing screen (48) and spaced apart from a second visible light image intensifier (42), may be positioned between the first image intensifier (26) and the viewing screen (48), thereby providing the viewer with a virtual, orthoscopic image (A'B'C') of the object (ABC) with full horizontal and vertical parallax.