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:
Oct. 27, 2020
Filed:
Dec. 27, 2019
Nuctech Company Limited, Beijing, CN;
Tsinghua University, Beijing, CN;
Wenhui Huang, Beijing, CN;
Qingxiu Jin, Beijing, CN;
Cong Xu, Beijing, CN;
Luming Zhang, Beijing, CN;
Donghai Liu, Beijing, CN;
Cheng Song, Beijing, CN;
Peidong Wu, Beijing, CN;
Qun Luo, Beijing, CN;
Chengjun Tan, Beijing, CN;
Shuo Wang, Beijing, CN;
Nuctech Company Limited, Beijing, CN;
Tsinghua University, Beijing, CN;
Abstract
An external grid-controlled hot cathode array electron gun, including an insulated cathode base, a filament, a plurality of hot cathode emission elements, and a grid-controlled structure is disclosed. In one aspect, the grid-controlled structure includes an insulated grid-controlled structure body and a plurality of through holes. One side of the grid-controlled structure body abuts against the cathode base to clamp the filament between the grid-controlled structure body and the cathode base and the plurality of hot cathode emission elements are inserted into the plurality of through holes respectively.