JPS53145561A - Electronic gun - Google Patents

Electronic gun

Info

Publication number
JPS53145561A
JPS53145561A JP5976577A JP5976577A JPS53145561A JP S53145561 A JPS53145561 A JP S53145561A JP 5976577 A JP5976577 A JP 5976577A JP 5976577 A JP5976577 A JP 5976577A JP S53145561 A JPS53145561 A JP S53145561A
Authority
JP
Japan
Prior art keywords
electronic gun
pieces
secured
electrode
electron beam
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.)
Pending
Application number
JP5976577A
Other languages
Japanese (ja)
Inventor
Soichi Sakurai
Kunio Ando
Kenichi Fukuzawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5976577A priority Critical patent/JPS53145561A/en
Publication of JPS53145561A publication Critical patent/JPS53145561A/en
Pending 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
    • H01J29/50—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

Abstract

PURPOSE:To obtain a color picture tube featuring good focus properties by setting the cylinder length of the electrode at the side of the fluorescent screen so that a vertically long electron beam may be secured for the center one among three pieces of the electronic gun aligned linearly.
JP5976577A 1977-05-25 1977-05-25 Electronic gun Pending JPS53145561A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5976577A JPS53145561A (en) 1977-05-25 1977-05-25 Electronic gun

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5976577A JPS53145561A (en) 1977-05-25 1977-05-25 Electronic gun

Publications (1)

Publication Number Publication Date
JPS53145561A true JPS53145561A (en) 1978-12-18

Family

ID=13122687

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5976577A Pending JPS53145561A (en) 1977-05-25 1977-05-25 Electronic gun

Country Status (1)

Country Link
JP (1) JPS53145561A (en)

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