KR940022648A

KR940022648A - Electron gun for colored cathode ray tube

Info

Publication number: KR940022648A
Application number: KR1019930003302A
Authority: KR
Inventors: 손광균; 송용석; 김일태
Original assignee: 박경팔; 삼성전관 주식회사
Priority date: 1993-03-05
Filing date: 1993-03-05
Publication date: 1994-10-21
Also published as: KR100255667B1

Abstract

본 발명은 칼라 음극선관용 전자총을 개시한다. 본 발명은 전치 삼극부를 이루는 캐소오드, 제어전극 및 스크린 전극과, 유니 포텐셜형 전자렌즈와 사중극 렌즈를 이루는 복수개의 포커스 전극과 포커스 렌즈와 콘버어젼스 렌즈를 형성하는 주 렌즈를 이루는 복수개의 전극을 구비하여 된 칼라 음극선관용 전자총에 관한 것으로, 상기 사중극 렌즈를 이루는 전극중 캐소오드 측에 위치하는 전극의 외측 전자빔 통과공의 외측 가장자리에 주렌즈를 형성하는 전극측 또는 반대측으로 소정길이 연장되는 림을 형성하여 된 것에 특징이 있으며, 이는 전자빔의 콘버어젼스 특성을 향상시킬수 있는 이점이 있다.The present invention discloses an electron gun for a color cathode ray tube. The present invention provides a plurality of electrodes comprising a cathode, a control electrode and a screen electrode constituting the transposition triode, a plurality of focus electrodes forming a unipotential type electron lens and a quadrupole lens, and a main lens forming a focus lens and a convergence lens. The present invention relates to an electron gun for a color cathode ray tube, wherein the predetermined length is extended to an electrode side or an opposite side forming a main lens at an outer edge of an outer electron beam through hole of an electrode positioned on a cathode side of the electrodes forming the quadrupole lens. It is characterized by the formation of a rim, which has the advantage of improving the convergence characteristics of the electron beam.

Description

Electron gun for colored cathode ray tube

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 제1도에 도시된 제5,6포커스 전극에 의해 형성되는 사중극 렌즈의 수평렌즈를 가시화시켜 나타내보인 도면,3 is a view showing the horizontal lens of the quadrupole lens formed by the fifth and sixth focus electrodes shown in FIG.

제4도는 제1도에 도시된 전자총에 의해 전자빔이 컨버어젼스되는 상태를 도시한 입단면도,4 is a sectional view showing a state in which an electron beam is converged by the electron gun shown in FIG.

제5도는 본 발명에 따른 칼라 음극선관을 도시한 입단면도,5 is a sectional view showing a color cathode ray tube according to the present invention;

제6도는 제5도에 도시된 전극중 사중극 렌즈를 형성하는 전극을 도시한 것으로, (가)는 제5포커스 전극의 출사측면을 도시한 정면도이고, (나)는 제6포커스 전극의 입사측면을 도시한 정면도이다.FIG. 6 is a view showing electrodes forming a quadrupole lens among the electrodes shown in FIG. 5, (a) is a front view showing an emission side of the fifth focus electrode, and (b) is an incident of the sixth focus electrode. A front view showing the side.

Claims

And a plurality of electrodes comprising a cathode, a control electrode, and a screen electrode forming an anterior triode, a plurality of focus electrodes forming a unipotential type electron lens and a quadrupole lens, and a main lens forming a focus lens and a convergence lens. An electron gun for a colored cathode ray tube, wherein a rim extending a predetermined length to an electrode side forming a main lens is formed at an outer edge of an outer electron beam through hole of an electrode located on a cathode side of the electrodes constituting the quadrupole lens. Electron gun for colored cathode ray tubes.

The electron gun for a color cathode ray tube according to claim 1, wherein the rims are formed at both sides of the outer electron beam passing hole and the rims located at the outer side are elongated.

The electron gun for a color cathode ray tube according to claim 1, wherein the electron beam through hole of the electrode forming the quadrupole lens is a longitudinal electron beam through hole and a horizontal electron beam through hole.

※ Note: The disclosure is based on the initial application.