JPH0326040U - - Google Patents

Info

Publication number
JPH0326040U
JPH0326040U JP1989133023U JP13302389U JPH0326040U JP H0326040 U JPH0326040 U JP H0326040U JP 1989133023 U JP1989133023 U JP 1989133023U JP 13302389 U JP13302389 U JP 13302389U JP H0326040 U JPH0326040 U JP H0326040U
Authority
JP
Japan
Prior art keywords
electron gun
ray tube
cathode ray
beam passing
depressed part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1989133023U
Other languages
Japanese (ja)
Other versions
JPH0741083Y2 (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of JPH0326040U publication Critical patent/JPH0326040U/ja
Application granted granted Critical
Publication of JPH0741083Y2 publication Critical patent/JPH0741083Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • H01J29/488—Schematic arrangements of the electrodes for beam forming; Place and form of the elecrodes
    • 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
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/48—Electron guns
    • H01J2229/50—Plurality of guns or beams
    • H01J2229/502—Three beam guns, e.g. for colour CRTs

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図及び第２図は従来の電子銃の断面図、第
３図は本考案による電子銃の１実施例を示した図
面、第４図は第３図に図示された電子銃における
メインレンズ系の主レンズを形成する電極の正面
図、第５図は本考案の電子銃によつて制御される
電子ビームの集束及び集中状態を可視化して示し
た図面である。 ３Ｒ，３Ｇ，３Ｂ，４Ｒ，４Ｇ，４Ｂ……ビー
ム通過孔、ＲＲ，ＰＲ……陥没部、ＴＲ……傾斜
面、Ｌ……陥没部底面の境界線、ＢＲ……ビーム
通過孔のリツプ。 1 and 2 are cross-sectional views of a conventional electron gun, FIG. 3 is a drawing showing an embodiment of the electron gun according to the present invention, and FIG. 4 is a main lens in the electron gun shown in FIG. 3. FIG. 5, which is a front view of the electrode forming the main lens of the system, is a diagram visualizing the convergence and concentration state of the electron beam controlled by the electron gun of the present invention. 3R, 3G, 3B, 4R, 4G, 4B... Beam passing hole, RR, PR... Depression, TR... Inclined surface, L... Boundary line of bottom of depression, BR... Lip of beam passing hole.

Claims (1)

【実用新案登録請求の範囲】 １ カソード、制御グリツド、スクリーングリツ
ド、これらからの電子ビームを制御加速する多数
の電極を具備した陰極線管用電子銃において、 メインレンズ系の最終加速及び集束レンズを形
成するフオーカス電極のビームの通過平面とアノ
ード電極のビーム通過平面に斜面を持つ陥没部を
形成し、陥没部の底面には中央ビーム通過孔が位
置され、その両側の斜面には外郭ビーム通過孔が
位置されるようにしたことを特徴とする陰極線管
用電子銃。 ２ 前記斜面上に外郭ビーム通過孔が全体的に形
成されたことを特徴とする請求項１記載の陰極線
管用電子銃。 ３ 前記外郭のレンズ形成孔より中央のレンズ形
成孔が小さい直径を持つように形成されたことを
特徴とする請求項１記載の陰極線管用電子銃。[Claims for Utility Model Registration] 1. In a cathode ray tube electron gun equipped with a cathode, a control grid, a screen grid, and a number of electrodes for controlling and accelerating the electron beam from these, forming the final accelerating and focusing lens of the main lens system. The beam passing plane of the focus electrode and the beam passing plane of the anode electrode are formed with a depressed part having a slope, and a central beam passing hole is located at the bottom of the depressed part, and outer beam passing holes are located on the slopes on both sides of the depressed part. An electron gun for a cathode ray tube, characterized in that the electron gun is positioned so that the 2. The cathode ray tube electron gun according to claim 1, wherein an outer beam passage hole is formed entirely on the slope. 3. The electron gun for a cathode ray tube according to claim 1, wherein the center lens forming hole is formed to have a smaller diameter than the outer lens forming hole.
JP1989133023U 1988-12-23 1989-11-15 Electron gun for cathode ray tube Expired - Fee Related JPH0741083Y2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR2019880021340U KR910007658Y1 (en) 1988-12-23 1988-12-23 Electron gun of cathode ray tube
KR21340 1988-12-23

Publications (2)

Publication Number Publication Date
JPH0326040U true JPH0326040U (en) 1991-03-18
JPH0741083Y2 JPH0741083Y2 (en) 1995-09-20

Family

ID=19282438

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989133023U Expired - Fee Related JPH0741083Y2 (en) 1988-12-23 1989-11-15 Electron gun for cathode ray tube

Country Status (3)

Country Link
JP (1) JPH0741083Y2 (en)
KR (1) KR910007658Y1 (en)
MY (1) MY104697A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5174570A (en) * 1974-12-25 1976-06-28 Hitachi Ltd KARAAJUZOKAN
JPS53147459A (en) * 1977-05-27 1978-12-22 Mitsubishi Electric Corp Electron gun for color receiving tube
JPS59194333A (en) * 1983-04-20 1984-11-05 Nec Corp In-line type electron gun frame body

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5174570A (en) * 1974-12-25 1976-06-28 Hitachi Ltd KARAAJUZOKAN
JPS53147459A (en) * 1977-05-27 1978-12-22 Mitsubishi Electric Corp Electron gun for color receiving tube
JPS59194333A (en) * 1983-04-20 1984-11-05 Nec Corp In-line type electron gun frame body

Also Published As

Publication number Publication date
KR900013395U (en) 1990-07-05
JPH0741083Y2 (en) 1995-09-20
MY104697A (en) 1994-05-31
KR910007658Y1 (en) 1991-09-30

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees