KR950015511A - Electron gun for colored cathode ray tube - Google Patents

Electron gun for colored cathode ray tube Download PDF

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Publication number
KR950015511A
KR950015511A KR1019930026168A KR930026168A KR950015511A KR 950015511 A KR950015511 A KR 950015511A KR 1019930026168 A KR1019930026168 A KR 1019930026168A KR 930026168 A KR930026168 A KR 930026168A KR 950015511 A KR950015511 A KR 950015511A
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KR
South Korea
Prior art keywords
focus
electron beam
electron
cathode ray
lens
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KR1019930026168A
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Korean (ko)
Inventor
권오소
제이. 켐벨 프란씨스
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엄길용
오리온전기 주식회사
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Application filed by 엄길용, 오리온전기 주식회사 filed Critical 엄길용
Priority to KR1019930026168A priority Critical patent/KR950015511A/en
Priority to EP94118716A priority patent/EP0655763A1/en
Priority to CN94113073A priority patent/CN1108798A/en
Priority to JP6295397A priority patent/JPH0817359A/en
Publication of KR950015511A publication Critical patent/KR950015511A/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns
    • H01J29/50—Electron guns two or more guns in a single vacuum space, e.g. for plural-ray tube
    • H01J29/503—Three or more guns, the axes of which lay in a common plane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns
    • H01J29/50—Electron guns two or more guns in a single vacuum space, e.g. for plural-ray tube
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/48—Electron guns
    • H01J2229/4834—Electrical arrangements coupled to electrodes, e.g. potentials
    • H01J2229/4837—Electrical arrangements coupled to electrodes, e.g. potentials characterised by the potentials applied
    • H01J2229/4841—Dynamic potentials

Landscapes

  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Cold Cathode And The Manufacture (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

본 발명은 칼라 음극선관용 전자총을 개시한다.The present invention discloses an electron gun for a color cathode ray tube.

본 발명은 전자빔의 방출원인 삼극부와, 이 삼극부와 등축상에 설치되어 삼극부로부터 방출된 전자빔을 집속및 가속시키는 프리포커스 렌즈부와 주렌즈부를 구비하여 된 칼라 음극선관용 전자총에 관한 것으로, 상기 프리포커스 렌즈부가 서로 다른 두개의 포커스전압이 선택적으로 인가되어 수평방향 전자렌즈의 세기가 수직방향 전자렌즈의 세기보다 약한 적어도 하나의 사중극렌즈를 형성하는 복수개의 포커스전극을 구비하여 된 것에 특징이 있으며 이에 주렌즈로 입사되는 전자빔의 구면수차 영향을 줄일수 있는 이점을 가진다.The present invention relates to an electron gun for a color cathode ray tube, comprising a three-pole portion that is an emission source of an electron beam, a prefocus lens portion and a main lens portion that are arranged on the same axis with the three-pole portion and focus and accelerate the electron beam emitted from the three-pole portion. The prefocus lens unit includes a plurality of focus electrodes that selectively apply two different focus voltages to form at least one quadrupole lens whose strength of the horizontal electron lens is weaker than that of the vertical electron lens. This has the advantage of reducing the effect of spherical aberration of the electron beam incident on the main lens.

Description

칼라 음극선관용 전자총Electron gun for colored cathode ray tube

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

제2도는 본 발명에 따른 칼라 음극선관용 전자총의 프리 포커스부를 발췌하여 도시한 입단면도로서, 전압인가방법을 나타내 보인 도면.FIG. 2 is a cross-sectional view illustrating the prefocus of an electron gun for a color cathode ray tube according to the present invention, showing a voltage application method. FIG.

제3도는 제2도에 도시된 프리포커스 렌즈부를 이루는 전극의 입사측면과 출사측면의 전자빔 통과공 형상을 나타내 보인 개략도,FIG. 3 is a schematic view showing an electron beam through hole shape of the incidence side and the outgoing side of the electrode constituting the prefocus lens unit shown in FIG. 2;

제4도는 본 발명에 따른 칼라 음극선관용 전자총의 프리 포커스 렌즈부에 의해 수평방향의 전자빔이 접속되는 궤적을 가시화시켜 나타내 보인 궤적도.FIG. 4 is a trajectory diagram visually showing a trajectory in which a horizontal electron beam is connected by a prefocus lens unit of a color cathode ray tube electron gun according to the present invention; FIG.

제5도는 본 발명에 따른 칼라 음극선관용 전자총의 프리 포커스 렌즈부에 의해 수직 방향의 전자빔이 집속되는 궤적을 가시화시켜 나타내 보인 궤적도이다.5 is a trajectory diagram visually showing a trajectory of focusing an electron beam in a vertical direction by a prefocus lens unit of a color cathode ray tube electron gun according to the present invention.

Claims (11)

전자빔의 방출원인 삼극부와, 이 삼극부와 동축상에 설치되어 삼극부로 부터 방출된 전자빔을 집속및 가속시키는 프리포커스 렌즈부와 주렌주부를 구비하여 된 칼라 음극선관용 전자총에 있어서, 상기 프리포커스 렌즈부가, 서로 다른 두개의 포커스전압이 선택적으로 인가되어 수평방향전자렌즈의 세기가 수직방향 전자렌즈의 세기보다 약한 적어도 하나의 사중극렌즈를 형성하는 복수개의 포커스전극을 구비하여 된 것을 특징으로 하는 칼라 음극선관용 전자총.An electron gun for a color cathode ray tube, comprising: a three-pole portion that is an emission source of an electron beam, and a pre-focus lens portion and a main-lens portion provided coaxially with the three-pole portion to focus and accelerate the electron beam emitted from the three-pole portion. In addition, two different focus voltages are selectively applied, and a plurality of focus electrodes are provided to form at least one quadrupole lens whose intensity of the horizontal electron lens is weaker than that of the vertical electron lens. Electron gun for cathode ray tube. 제1항에 있어서, 상기 사중극렌즈를 형성하는 프리포커스 렌즈부가, 삼극부로부터 수평방향 전자렌즈의 세기가 수직방향의 전자렌즈의 세기보다 약한 사중극렌즈를 형성하는 전자빔통과공이 형성된 제1,2,3,4 포커스 전극이 순차적으로 형성되며, 상기 제2,4포커스 전극간에 제1포커스 전압이 인가되고 상기 제1,3포커스전극에는 상기 제1포커스 전압보다 높은 제2포커스 전압이 인가되는 것을 특징으로 하는 칼라 음극선관용 전자총.The method of claim 1, wherein the prefocus lens unit forming the quadrupole lens comprises: a first beam having an electron beam through hole for forming a quadrupole lens from which the intensity of the horizontal electron lens is weaker than that of the vertical electron lens from the triode; 2, 3, and 4 focus electrodes are sequentially formed, and a first focus voltage is applied between the second and fourth focus electrodes, and a second focus voltage higher than the first focus voltage is applied to the first and third focus electrodes. Electron gun for color cathode ray tube, characterized in that. 제2항에 있어서, 상기 제1,2 포커스 전압이 주렌즈를 이루는 전극에 인가되는 애노우드 전압의 20% 내지 25%의 범위내에 있는 것을 특징으로 하는 칼라 음극선관용 전자총.The electron gun for a color cathode ray tube according to claim 2, wherein the first and second focus voltages are in a range of 20% to 25% of an anode voltage applied to an electrode forming a main lens. 제1항 또는 제2항중 어느 한 항에 있어서, 상기 사중극렌즈가, 상기 제2포커스 전극의 출사측면과 제4포커스전극의 입사측면의 중앙에 각각 형성된 종장형의 전자빔 통과공과, 상기 제3포커스 전극의 입사측면 및 출사측면과 상기 제4포커스 전극의 출사측면에의 양측에 각각 형성된 횡장형의 전자빔 통과공의 영향에 의해 형성되는 것을 특징으로 하는 칼라 음극선관용 전자총.The elongated electron beam through hole according to any one of claims 1 to 3, wherein the quadrupole lens is formed at the center of the emission side of the second focus electrode and the incident side of the fourth focus electrode, respectively, An electron gun for a color cathode ray tube, characterized in that it is formed by the influence of a transverse electron beam through-hole formed on both sides of an incident side and an exit side of a focus electrode and an exit side of the fourth focus electrode. 제4항에 있어서, 상기 제4포커스 전극의 출사측면에 형성된 황장형의 전자빔 통과공 중심이 그 입사측면에 형성된 전자빔통과공의 중심에 대해 내측으로 편심된 것을 특징으로 하는 칼라 음극선관용 전자총.5. The electron gun for color cathode ray tube according to claim 4, wherein the center of the elongated electron beam through hole formed on the exit side of the fourth focus electrode is eccentric inward with respect to the center of the electron beam through hole formed on the incidence side. 제2항 또는 제3항중 어느 한 항에 있어서, 상기 제1포커스 전압이 6000내지 7000볼트이고, 상기 제2포커스전압이 7000내지 9000볼트인 것을 특징으로 하는 칼라 음극선관용 전자총.The electron gun for color cathode ray tubes according to any one of claims 2 to 3, wherein the first focus voltage is 6000 to 7000 volts, and the second focus voltage is 7000 to 9000 volts. 제4항에 있어서, 상기 제1,2,3,4포커스 전극에 형성된 전자빔 통과공이 제1포커스 전극으로 부터 그 직경 또는 수직폭이 점차적으로 크거나 같게 형성되는 것을 특징으로 하는 칼라 음극선관용 전자총.The electron gun for a color cathode ray tube according to claim 4, wherein the electron beam passing holes formed in the first, second, third and fourth focus electrodes are gradually larger or equal in diameter or vertical width from the first focus electrode. 제4항에 있어서, 상기 제1,2,3,4포커스 전극에 형성된 전자빔 통과공중 상호 이접하는 포커스전극의 전자빔 통과공중 적어도 하나의 직경 또는 폭이 동일하게 형성된 것을 특징으로 하는 칼라 음극선관용 전자총.The electron gun for color cathode ray tubes according to claim 4, wherein at least one of the diameters or widths of the electron beam passing holes of the focus electrode which are in contact with each other among the electron beam passing holes formed in the first, second, third and fourth focus electrodes are formed to be the same. 제4항에 있어서, 제3포커스 전극의 입사측면과 출사측면에 형성된 양측에 형성된 횡장형의 전자빔 통과공의 중심이 제2포커스 전극의 양측전자빔 통과공의 중심보다 외측에 위치한 것을 특징으로 하는 칼라 음극선관용 전자총.5. The collar according to claim 4, wherein the centers of the transverse electron beam through holes formed on both sides of the incidence side and the outgoing side of the third focus electrode are located outside the centers of the two electron beam through holes of the second focus electrode. Electron gun for cathode ray tube. 제2항에 있어서, 상기 주렌즈부와 인접된 제4포커스 전극의 출사측면에 형성된 전자빔 세 전자빔 통과공중 양측의 전자빔 통과공은 횡장형이고 중앙의 전자빔 통과공은 원형인 것을 특징으로 하는 칼라 음극선관용 전자총.3. The color cathode ray beam according to claim 2, wherein the electron beam through holes on both sides of the electron beam through electron beam through holes formed on the emission side of the fourth focus electrode adjacent to the main lens unit are horizontal and the electron beam through holes in the center are circular. Tolerance gun. 제10항에 있어서, 상기 제4포커스전극의 출사측면에 형성된 횡장형의 전자빔 통과공 중심이 그 입사측면에 형성된 전자빔 통과공의 중심에 대해 내측으로 편심된 것을 특징으로 하는 칼라 음극선관용 전자총.The electron gun for color cathode ray tube according to claim 10, wherein the center of the horizontal electron beam through hole formed on the exit side of the fourth focus electrode is eccentric inward with respect to the center of the electron beam through hole formed on the incident side. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930026168A 1993-11-30 1993-11-30 Electron gun for colored cathode ray tube KR950015511A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1019930026168A KR950015511A (en) 1993-11-30 1993-11-30 Electron gun for colored cathode ray tube
EP94118716A EP0655763A1 (en) 1993-11-30 1994-11-28 Electron gun for a color picture tube
CN94113073A CN1108798A (en) 1993-11-30 1994-11-29 Electron gun for color picture tube
JP6295397A JPH0817359A (en) 1993-11-30 1994-11-29 Electron gun for color cathode ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930026168A KR950015511A (en) 1993-11-30 1993-11-30 Electron gun for colored cathode ray tube

Publications (1)

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KR950015511A true KR950015511A (en) 1995-06-17

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Application Number Title Priority Date Filing Date
KR1019930026168A KR950015511A (en) 1993-11-30 1993-11-30 Electron gun for colored cathode ray tube

Country Status (4)

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EP (1) EP0655763A1 (en)
JP (1) JPH0817359A (en)
KR (1) KR950015511A (en)
CN (1) CN1108798A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995030999A2 (en) * 1994-05-06 1995-11-16 Philips Electronics N.V. Display device and cathode ray tube
JPH1021847A (en) * 1996-07-03 1998-01-23 Sony Corp Electron gun for color cathod-ray tube

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS598246A (en) * 1982-07-05 1984-01-17 Toshiba Corp Electron gun
KR910007654Y1 (en) * 1988-11-02 1991-09-30 삼성전관 주식회사 Electron gun of multi-step focusing crt
KR940000601Y1 (en) * 1991-09-27 1994-02-02 삼성전관 주식회사 Electron gun
DE4233955A1 (en) * 1992-05-19 1993-11-25 Samsung Electronic Devices Electron gun for colour cathode ray tube - compensates focusing strength of electron beam due to change in strength of main focusing lens using first dynamic quadrupole pre-focussing lens.

Also Published As

Publication number Publication date
CN1108798A (en) 1995-09-20
EP0655763A1 (en) 1995-05-31
JPH0817359A (en) 1996-01-19

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