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. 23, 2010
Filed:
Oct. 08, 2007
Stefan Hauttmann, Eindhoven, DE;
Wolfram Maring, Eindhoven, DE;
Steffen Holzapfel, Eindhoven, DE;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
It is described an electron optical arrangement, a X-ray emitting device and a method of creating an electron beam. An electron optical apparatus () comprises the following components along an optical axis (): a cathode with an emitter () having a substantially planar surface () for emitting electrons; an anode () for accelerating the emitted electrons in a direction essentially along the optical axis (); a first magnetic quadrupole lens () for deflecting the accelerated electrons and having a first yoke (); a second magnetic quadrupole lens () for further deflecting the accelerated electrons and having a second yoke (); and a magnetic dipole lens () for further deflecting the accelerated electrons.