JPS61749U

JPS61749U - Image tube

Info

Publication number: JPS61749U
Application number: JP8501184U
Authority: JP
Inventors: 武男中村
Original assignee: 株式会社東芝
Priority date: 1984-06-08
Filing date: 1984-06-08
Publication date: 1986-01-07

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図はこの考案の一実施例に襟る撮像管の要部を示す
断面図、第２図は従来の撮像管を示す断面図、第３図は
第２図の要部を拡大して示す断面図である。１・・・真空外囲器、１ａ・・・面取り部、２・・・イ
ンジウム（封着材）、３・・・面板、５・・・ターゲッ
ト、６・・・メッシュ電極、７・・・メッシュ、７ａ・
・・メッシュ延長部、８・・・メッシュリング、９・・
・押え板、１０・・・管壁電極。Fig. 1 is a sectional view showing the main parts of an image pickup tube according to an embodiment of this invention, Fig. 2 is a sectional view showing a conventional image pickup tube, and Fig. 3 is an enlarged view of the main parts of Fig. 2. FIG. DESCRIPTION OF SYMBOLS 1... Vacuum envelope, 1a... Chamfered part, 2... Indium (sealing material), 3... Face plate, 5... Target, 6... Mesh electrode, 7... Mesh, 7a・
...Mesh extension, 8...Mesh ring, 9...
- Holding plate, 10...tube wall electrode.

Claims

[Scope of utility model registration request]

A face plate is sealed to the open end of the bottomed cylindrical vacuum envelope via a conductive airtight sealing material, and a mesh is electrically connected to the sealing material, facing the target formed on the inner surface of the face plate. In an image pickup tube, a mesh electrode is disposed between a short-circuited cylindrical mesh ring and a ring-shaped holding plate, and a tube wall electrode is formed on the inner surface near the open end of the vacuum external device, An imaging tube characterized in that the mesh is extended and the mesh extension is brought into contact with the tube wall electrode.