JPS5891848U

JPS5891848U - Electron gun for color picture tube

Info

Publication number: JPS5891848U
Application number: JP18634981U
Authority: JP
Inventors: 高野　洸; 山内　昌昭; 間島　和夫; 正司白井; 正和福島
Original assignee: 株式会社日立製作所
Priority date: 1981-12-16
Filing date: 1981-12-16
Publication date: 1983-06-21

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 drawings]

第１図は、従来のインライン型カラー受像管用電子銃の
概略構成を示す断面図、第２図は本考案の一実例の要部
断面、第３図は、本考案の他の実施例の要部を示す断面
図、第４図および第５図は、それぞれ本考案のさらに他
の実施例の要部を示す斜視図である。１・・・陰極、２・・・Ｇ１電極、３・・・Ｇ２電極、
４・・・Ｇ３入射口電極、５・・・隔板、６・・・Ｇ３
出射口電極、７・・心、入射口電極、８・・・カップ電
極、９・・・Ｇ３内円筒、１０・・・Ｇ４内円筒、６７
・７１・・・外周電極、６２・７２・・・極板、６３・
７３・・・外周電極末端部、６５・６６・６７・７５・
７６・７７・・・ビーム通過用開孔、６８・６９・・・
補正用短円筒。 −−Ｌ　　〜ｒ（’（＝４両→FIG. 1 is a cross-sectional view showing the schematic structure of a conventional in-line color picture tube electron gun, FIG. 2 is a cross-sectional view of a main part of an example of the present invention, and FIG. 3 is a main part of another embodiment of the present invention. FIGS. 4 and 5 are perspective views showing essential parts of still other embodiments of the present invention. 1... Cathode, 2... G1 electrode, 3... G2 electrode,
4... G3 entrance electrode, 5... Partition plate, 6... G3
Output electrode, 7... Core, entrance electrode, 8... Cup electrode, 9... G3 inner cylinder, 10... G4 inner cylinder, 67
・71...Outer circumferential electrode, 62.72...Electrode plate, 63.
73... Outer peripheral electrode end, 65, 66, 67, 75.
76, 77... Beam passage opening, 68, 69...
Short cylinder for correction. −−L ~r('( =4 cars →

Claims

[Claims for Utility Model Registration] 1. A collar comprising an electron beam generating means that generates three electron beams toward a fluorescent surface, and a main lens that focuses the three electron beams onto the fluorescent surface. In the electron gun for a picture tube, the electrodes constituting the main lens are provided at intervals from each other, and two electrodes surrounding the three electron beams are provided.
two electrode plates, each having a peripheral electrode and three openings arranged in one direction, arranged on opposing end faces of the peripheral electrode, and through which the three electron beams pass. and at least one of the two electrode plates is retracted in a direction away from the other electrode plate and disposed inside the outer peripheral electrode, and the retracted electrode plate is disposed inside the outer circumferential electrode, and A color picture tube electron gun characterized in that the distance to the edge of an aperture in an electrode plate changes along the periphery of the aperture. 2. The retracted electrode plate has a short cylinder protruding from the opening toward the electrode plate facing the electrode plate, and the height of the short cylinder changes along its circumferential direction. An electron gun for a color picture tube according to claim 1 of the utility model registration claim, characterized in that: 3. The collar according to claim 1, wherein the retracted electrode plate is a curved plate having one curved surface common to three openings formed in the electrode plate. Electron gun for picture tube. 4. The utility model according to claim 1, wherein the retracted electrode plate is composed of a curved plate having curved surfaces arranged side by side corresponding to the three openings formed in the electrode plate. Electron gun for color picture tube.