JPS5967846U

JPS5967846U - electron gun

Info

Publication number: JPS5967846U
Application number: JP16528082U
Authority: JP
Inventors: 岩塚　正俊
Original assignee: 日本電気ホームエレクトロニクス株式会社
Priority date: 1982-10-29
Filing date: 1982-10-29
Publication date: 1984-05-08

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は電子銃の一例を示す側断面図、第２図は第１図
Ａ−Ａ面図、第３図は第１グリツド電極の変形を示す第
１図Ａ−Ａ面図、第４図は本考案の一実施例を示す要部
拡大側断面図を示す。１′・・・第１グリツド電極、１’　ａ・・・底面、１
′ｂ・・・電子ビーム透過孔、２’−・・第２グリ′ツ
ド電極、２’　ａ・・・底面、２’　ｂ・・・電子ビー
ム透過孔、１５・・・凹部、１６・・・凸部。Fig. 1 is a side sectional view showing an example of an electron gun, Fig. 2 is a view taken along line A-A in Fig. 1, Fig. 3 is a view taken along line A-A in Fig. 1 showing a modification of the first grid electrode, and Fig. 4 The figure shows an enlarged side sectional view of essential parts showing an embodiment of the present invention. 1'...First grid electrode, 1'a...Bottom surface, 1
'b...Electron beam transmission hole, 2'-...Second grid electrode, 2'a...Bottom surface, 2'b...Electron beam transmission hole, 15...Concave portion, 16...・Protrusion.

Claims

[Scope of utility model registration request]

It includes first and second grid electrodes in the shape of a cylinder with an electron beam perforated in the bottom surface, the bottom surfaces of the first and second grid electrodes face each other, and a plurality of electrodes are arranged in a straight line at a predetermined interval. In the first grid electrode, a recess that becomes stepwise thinner toward the electron beam transmission hole is formed on the outer surface of the bottom surface of the first grid electrode, and a recess that becomes thinner in steps toward the electron beam transmission hole is formed on the outer surface of the bottom surface of the second grid electrode. An electron gun characterized by forming convex portions that protrude into concave portions.