JPS6033744U

JPS6033744U - electron gun structure

Info

Publication number: JPS6033744U
Application number: JP12558183U
Authority: JP
Inventors: 田中　徳四郎
Original assignee: 株式会社東芝
Priority date: 1983-08-15
Filing date: 1983-08-15
Publication date: 1985-03-07

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Ａ、　Ｂはインライン型電子銃を有するブラウン
管を示しＡ図は縦断面図、Ｂ図は正面図である。第２図
は第１図の主要部の拡大断面図、第３図はネック内壁の
電位分布図、第４図は従来のネック内壁電位の時間変化
図、第５図は本考案の一実施例の構成を示す縦断面図、
第６図は第５図の一部を示す斜視図、第７図は第４図に
対応して示す第５図構成のネック内壁電位の時間変化図
、第８図は本考案の他の実施例を示す側断面図である。１・・・・・・電子銃、３・・・・・・パネル面、１８
・・・・・・パネル面側電極部（コンバーカップ）、２
０・・・・・・間隙、２１・・・・・・ネック内壁、４
１，４５．４６・・・・・・金属線リング、４３・・・
・・・金属リボン。1A and 1B show a cathode ray tube having an in-line type electron gun, and FIG. 1A is a longitudinal sectional view, and FIG. 1B is a front view. Fig. 2 is an enlarged sectional view of the main part of Fig. 1, Fig. 3 is a potential distribution diagram on the inner wall of the neck, Fig. 4 is a diagram of the conventional neck inner wall potential over time, and Fig. 5 is an embodiment of the present invention. A vertical cross-sectional view showing the configuration of
FIG. 6 is a perspective view showing a part of FIG. 5, FIG. 7 is a time change diagram of the neck inner wall potential of the configuration shown in FIG. 5 corresponding to FIG. 4, and FIG. 8 is another embodiment of the present invention. It is a side sectional view showing an example. 1... Electron gun, 3... Panel surface, 18
・・・・・・Panel surface side electrode part (conver cup), 2
0...Gap, 21...Neck inner wall, 4
1,45.46...Metal wire ring, 43...
...Metal ribbon.

Claims

[Scope of utility model registration request]

(1) A plurality of flexibly deformable metal ribbons are attached to the electrodes in the gap between the electrodes on both sides of the panel in the electrodes of the main lens of the electron gun and the inner wall of the neck opposing the electrodes. An electron gun assembly characterized by having a metal wire ring that is elastically pressed into contact with the metal wire ring and shields the gap when viewed from the tube axis direction.

(2) Claims for registration of a utility model characterized by having a plurality of metal wire rings in which the ring with the largest diameter is elastically pressed against the inner wall of the net and the ring with the smallest diameter is elastically pressed against the outer wall of the electrode section on the panel surface side. The electron gun assembly according to item 1.