JPS588850U

JPS588850U - electron gun

Info

Publication number: JPS588850U
Application number: JP10357381U
Authority: JP
Inventors: 大越　明男; 植野　喜一; 和正野村; 鞭　常雄; 阿部　昭彦; 民治政時
Original assignee: ソニー株式会社
Priority date: 1981-07-13
Filing date: 1981-07-13
Publication date: 1983-01-20

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 drawings]

笹１図は本考案に係る電子銃に用いられ得る陰極の一例
を示す断面図、第２図及び第３図は第１図に示される陰
極を用いて構成された陰極構体を示す平面図及び側面図
、第４図は第１図に示される陰極を用いた既に提案され
ている電子銃を示す部分断面図、第５図及び第６図は第
４図に示される電子銃の動作の説明に用いられる図、第
７図及び第８図は本考案に係る電子銃の一例を示す部分
断面図、第９図及び第１０図は本考案に係る電子銃の一
例の動作の説明に用いられる図である。図中、１は陰極、２はコイル状ヒータ線、３は熱電子放
射物質、７は陰極構体、８は制御格子電極、８ａは制御
格子電極８の、！極面部、１０゜１２及び１４は電子ビ
ーム通過用透孔、１１は加速格子電極、ｌｌａは加速格
子電極１１の電極面部である。第１図　　−“　　　　第８図一ヱ第４図−・第二２Figure 1 is a sectional view showing an example of a cathode that can be used in the electron gun according to the present invention, and Figures 2 and 3 are plan views showing a cathode structure constructed using the cathode shown in Figure 1. A side view, FIG. 4 is a partial sectional view showing an already proposed electron gun using the cathode shown in FIG. 1, and FIGS. 5 and 6 are explanations of the operation of the electron gun shown in FIG. 4. 7 and 8 are partial sectional views showing an example of the electron gun according to the present invention, and FIGS. 9 and 10 are used to explain the operation of an example of the electron gun according to the present invention. It is a diagram. In the figure, 1 is a cathode, 2 is a coiled heater wire, 3 is a thermionic emitting material, 7 is a cathode structure, 8 is a control grid electrode, 8a is a control grid electrode 8, ! In the polar face portions, 10° 12 and 14 are through holes for electron beam passage, 11 is an accelerating grid electrode, and lla is an electrode face portion of the accelerating grid electrode 11. Figure 1 - “Figure 8 1ヱFigure 4-・2 2

Claims

[Scope of utility model registration request]

A cathode formed into a cylindrical body by adhering a thermoelectron emitting substance to a coiled heater wire is disposed, and a control grid electrode is disposed with its electrode surface facing a side surface of the cylindrical body of the cathode, An electron gun comprising an elliptical or rectangular electron beam passage hole having a major axis in one direction substantially perpendicular to the longitudinal direction of the cathode, formed in the electrode surface portion of the control grid electrode.