JPS59107464U

JPS59107464U - electron gun

Info

Publication number: JPS59107464U
Application number: JP155383U
Authority: JP
Inventors: 純一高田
Original assignee: 三菱電機株式会社
Priority date: 1983-01-08
Filing date: 1983-01-08
Publication date: 1984-07-19

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 the drawing]

第１図は従来の陰極線管用電子銃の概略図、第２図は第
１図のＡ−Ａ線拡大断面図、第３図は第２図のＢ−Ｂ線
断面図、第４図はこの考案の一実施例にかかる電子銃の
支持体をビードガラスに立ち込み固定させた状態の断面
図、第５図は従来およびこの考案かかる支持体の強度を
示す特性図であ机　− １・・・カソード、２・・・第１格子電極、３・・・第
２格子電極、４，５・・・第３格子電極、６・・・第４
イ゛３子電極、７・・・ビードガラス、８・・・支持体
、９・・・立ち込み固定部。なお、図中同一符号は同一
または相当部分を示す。Fig. 1 is a schematic diagram of a conventional cathode ray tube electron gun, Fig. 2 is an enlarged cross-sectional view taken along line A-A in Fig. 1, Fig. 3 is a cross-sectional view taken along line B-B in Fig. 2, and Fig. 4 is a cross-sectional view taken along line A-A in Fig. 1. FIG. 5 is a cross-sectional view of the electron gun support according to an embodiment of the invention in a state where it is fixed to the bead glass, and FIG. 5 is a characteristic diagram showing the strength of the conventional support and the support according to the present invention.・Cathode, 2...First grid electrode, 3...Second grid electrode, 4, 5...Third grid electrode, 6...Fourth grid electrode
I. Triple electrode, 7... Bead glass, 8... Support body, 9... Standing fixing part. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

In an electron gun in which at least a support for a cathode that generates an electron beam and a plurality of electrodes that control the electron beam are fixed to a bead glass, the thickness of the part of the support that is fixed to the heat glass is set at the tip. An electron gun characterized by having a tapered shape toward the top.