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:
Apr. 01, 1997
Filed:
Dec. 08, 1995
Hans R Bucher, Boulder, CO (US);
Xedar Corporation, Boulder, CO (US);
Abstract
A scan-type X-ray imaging system and method are disclosed. Image detection is effected by use of a fixed phosphor converter screen covering the entire field of view so that X-rays passed through an object, or a body portion, positioned at a scan area, are received at the converter screen and light signals, proportional to the received X-rays, are coupled through a movable coupler, having an input portion movably engaging the converter screen, to a movable sensor that converts received light signals to electrical output signals indicative of the object, or body portion, then at the scan area. The input face of the coupler, preferably a fiber optic coupler, is held in positive engagement with the converter screen throughout movement of the coupler relative to the converter screen by a force, such as by an air cushion between the object, or body portion, positioner and the converter screen, by establishing a vacuum between the input face of the coupler and the converter screen, and/or by springs biasing the coupler face plate toward engagement with the converter screen.