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. 16, 2010
Filed:
Oct. 09, 2007
Stefan Hauttmann, Buchholz In der Nordheide, DE;
Rainer Pietig, Herzogenrath, DE;
Jeroen Jan Lambertus Horikx, Weert, NL;
Stefan Hauttmann, Buchholz In der Nordheide, DE;
Rainer Pietig, Herzogenrath, DE;
Jeroen Jan Lambertus Horikx, Weert, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
According to an exemplary embodiment an x-ray tube comprises a cathode, rotable disc anode, and a focal spot modulating unit, wherein the cathode is adapted to emit an electron beam, and wherein the focal spot modulating unit is adapted to modulate the electron beam in such a way that an intensity distribution of the electron beam on a focal spot on the anode is asymmetric such that the intensity of the electron beam on the focal spot is higher at the front of the focal spot with respect to the rotation direction.