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, 2015
Filed:
Jun. 10, 2010
Volker Onken, Aachen, DE;
Volker Onken, Aachen, DE;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
An X-ray tube for generating two focal spots displaced with respect to each other and a medical device using such X-ray tube are proposed. The X-ray tube () comprises a cathode () and an anode () wherein the cathode () comprises a first electron emitter () adapted for emitting a first electron beam () for generating a first focal spot () on the anode () and a second electron emitter () for emitting a second electron beam () for generating a second focal spot () on the anode (). Therein, each electron emitter () comprises an associated switchable grid () for blocking the respective emitted electron beam (). In order to realize a desired displacement of the first and second focal spots () in a y-direction, the first and second electron emitters () may be displaced in the z-direction. Due to the focal spots () being displaced in y-direction, an overall resolution of for example a high quality CT scanner may be significantly enhanced.