JPS5879943U

JPS5879943U - Convergence correction device

Info

Publication number: JPS5879943U
Application number: JP17468881U
Authority: JP
Inventors: 中茎　敏雄
Original assignee: 株式会社東芝
Priority date: 1981-11-26
Filing date: 1981-11-26
Publication date: 1983-05-30

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図は従来のコンバーゼンス・マグネットによる補正
磁界及び電子ビーｌ、の補正方向を説明する説明図、第
２図は電子銃組立て時のマウント・ローテーションに基
づく電子ビーム位置の傾斜を示す説明図、第３図は画面
周辺部におけるＸ軸垂直方向の弓形ミス・コンバーゼン
スの説明図、第４図は従来の４極マグネツトに基づくコ
ンバーゼンス補正残りを説明するマグネット配置図及び
説明図、第５図は本考案のコンバーゼンス補正装置の配
置図及び補正説明図、第６図及び第７図は本考案に係る
４極マグネツトの他の配置例を示す配置図、第８図は本
考案に係る４極マグネツトに依る電子ビームの補正方法
の説明図である。４・・・・・・カラー陰極線管、５・・・・・・偏向ヨ
ーク、６゜７・・・・・・４極マグネツト、Ｍｌ・・・
・・・４極マグネツト６の位置、Ｍ２・・・・・・４極
マグネツト７の位置、■・・・・・・Ｍｌ及びＭ２の間
隔、Ｓ・・・・・・スクリーン面、Ｄ・・・・・・偏向
中心、ａ、　　ｃ、　ｇ・・・・・・電子ビーム軌道、
ｄ・・・・・・Ｄにおける補正残り、Ｒ，Ｇ、　Ｂ・・
・・・・赤、緑、青の各電子ビーム、Ｔ・・・・・・管
ネック部。FIG. 1 is an explanatory diagram illustrating the correction direction of the correction magnetic field and electron beam by a conventional convergence magnet, and FIG. 2 is an explanatory diagram illustrating the inclination of the electron beam position based on mount rotation when assembling an electron gun. Figure 3 is an explanatory diagram of arcuate misconvergence in the X-axis vertical direction at the periphery of the screen, Figure 4 is a magnet arrangement diagram and explanatory diagram illustrating the remaining convergence correction based on the conventional 4-pole magnet, and Figure 5 is the main A layout diagram and a correction explanatory diagram of the convergence correction device according to the invention, FIGS. 6 and 7 are layout diagrams showing other arrangement examples of the 4-pole magnet according to the invention, and FIG. 8 is a diagram showing the arrangement of the 4-pole magnet according to the invention. FIG. 3 is an explanatory diagram of the electron beam correction method according to the present invention. 4...Color cathode ray tube, 5...Deflection yoke, 6°7...4-pole magnet, Ml...
...Position of 4-pole magnet 6, M2...Position of 4-pole magnet 7, ■... Distance between Ml and M2, S...Screen surface, D... ...deflection center, a, c, g...electron beam trajectory,
d...Remaining correction in D, R, G, B...
...Red, green, and blue electron beams, T...Tube neck.

Claims

[Scope of utility model registration request]

In a convergence correction device equipped with a quadrupole magnet for adjusting the electron beam position in the neck of an in-line color cathode ray tube, another quadrupole magnet is assembled at a predetermined interval to the quadrupole magnet, and the electron beam is A convergence correction device that performs rotation correction.