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:
May. 19, 2026
Filed:
Jun. 14, 2024
Siemens Healthineers Ag, Forchheim, DE;
SIEMENS HEALTHINEERS AG, Forchheim, DE;
Abstract
An electron emitter according to one or more example embodiments for a rotary piston X-ray tube has a segmented emitter surface including at least two emitter elements which can be activated independently of each other and is set up to activate at least one subset of the segments of the segmented emitter surface as an activated emission surface for emitting electrons from the activated emission surface, wherein the at least two emitter elements are arranged in such a way that the segmented emitter surface is axially symmetrical in an emitter surface place, at least one emitter element of the at least two emitter elements is embodied for the thermionic emission of electrons, and the at least two emitter elements are arranged such that a distance between the respective emitter surfaces is minimal.