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:
Jul. 14, 2026
Filed:
Feb. 22, 2022
Tohoku University, Miyagi, JP;
TOHOKU UNIVERSITY, Sendai, JP;
Abstract
An electron beam modulation device according to the present disclosure includes a light source configured to emit laser light, a polarization conversion part including a modulation plane configured to modulate a direction of polarization and an intensity of the laser light emitted from the light source, and a condensing element configured to condense the laser light passing through the modulation plane. In a focal plane of the condensing element, a round light is generated that includes a trapping potential region in which electrons included in an electron beam incident on the focal plane are attracted and a repulsive potential region in which the electrons are repelled. The round light has rotational symmetry about an optical axis of the laser light when viewed along the optical axis.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile