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. 22, 1992
Filed:
Jul. 24, 1991
Rudolph M Snoeren, Eindhoven, NL;
Johannes W Scheuermann, Heerlen, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
The X-ray examination apparatus (1) comprises an X-ray image intensifier tube (19) having an entrance screen (21), an exit section (24) having an exit screen (25) and an exit window (27), an optical imaging system (32) and a photosensitive detection device (41). The exit section (24) comprises a fibre optical plate. Between the fibre optical plate and the optical imaging system (32) there is quartz birefringent crystal element (31) which selectively increases the optical spatial frequency of the image processed thereby in order to correct for image aberrations introduced by the fibre optical plate structure.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile