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. 21, 1978
Filed:
Jun. 30, 1977
Other;
Abstract
An electron gun comprises a linear thermionic cathode having part of its emitting surface facing an accelerating anode, and the rest of the emitting surface separated by a gap from a cathode-adjacent focusing electrode. The cathode-adjacent focusing electrode is made of two portions spaced apart. On the opposite end surfaces of these portions, there is attached a pair of flat current-conducting springs whose other ends are connected to leads. The other end surfaces of these portions accommodate cathode holders and have a pair of flat springs attached thereto, the other ends of the pair of flat springs being connected to the insulator of the electron gun housing. The pairs of flat springs attached to different portions of the focusing electrode deflect towards each other. The proposed electron gun increases the stability of its electron-optical parameters.