JPS5912252U

JPS5912252U - Image tube

Info

Publication number: JPS5912252U
Application number: JP10646682U
Authority: JP
Inventors: 吉野　常一; 松村　邦夫
Original assignee: 株式会社東芝
Priority date: 1982-07-14
Filing date: 1982-07-14
Publication date: 1984-01-25
Also published as: JPH0145080Y2

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は、面板に電極取出し棒を設けた従来の電極集束
、静電偏向型撮像管を示す断面図、第２図は、この考案
を電磁集束、静電偏向型撮像管に適用した場合の一実施
例を示す断面図、第３図は、第２図の要部を拡大して示
す断面図、第４図は第゛２図におけるメツシュ電極組立
部品の寸法関係を　　　。示す断面図、第５図ａ、　　ｂはこの考案の変形例を示
す断面図である。１７・・・ガラス外囲器、１８・・・封着材、１９・・
・面板、２０・・・ガイドリング、２１・・・透明信号
電極、２２・・・ターゲット、２３・・・信号取出し棒
、２４・・・メツシュ電極、２５・・・メツシュ電極リ
ング、２６・・・メツシュ保持リング、２６ａ・・・フ
ランジ部、２７・Ｊ・電子銃、２８・・・偏向電極。第２図第４図Figure 1 is a sectional view showing a conventional electrode focusing and electrostatic deflection type image pickup tube with an electrode extraction rod on the face plate, and Figure 2 is a diagram showing the case where this idea is applied to an electromagnetic focusing and electrostatic deflection type image pickup tube. 3 is a sectional view showing an enlarged main part of FIG. 2, and FIG. 4 shows the dimensional relationship of the mesh electrode assembly in FIG. 2. The sectional views shown in FIGS. 5a and 5b are sectional views showing a modification of this invention. 17...Glass envelope, 18...Sealing material, 19...
- Face plate, 20... Guide ring, 21... Transparent signal electrode, 22... Target, 23... Signal extraction rod, 24... Mesh electrode, 25... Mesh electrode ring, 26... - Mesh holding ring, 26a...flange part, 27.J.electron gun, 28...deflection electrode. Figure 2 Figure 4

Claims

[Scope of utility model registration request]

(1) A face plate is sealed with a sealing material to the open end of a glass envelope which has an electron gun inside and a deflection electrode formed on the inner surface, and a guide ring is fitted around it, and the inner surface of the face plate is sealed. In an imaging tube in which a mesh electrode facing the target is attached to a mesh electrode ring, the mesh electrode ring is fixed to one end of the mesh retaining ring, and the mesh electrode ring is attached to the other end of the mesh retaining ring from the inner diameter of the glass envelope. An image pickup tube characterized in that a slightly larger flange portion is formed, the flange portion is brought into contact with the open end surface of the glass envelope, and the flange portion is clamped and fixed between the open end surface and the sealing material.

(2) The imaging tube according to claim 1, wherein the inner periphery of the open end of the glass envelope is cut into a stepped or arcuate shape.

(3) The imaging tube according to claim 1, wherein the guide ring is made of a partially plated insulator.