JPS5763751A - Electron gun with a plurality of electron beam - Google Patents

Electron gun with a plurality of electron beam

Info

Publication number
JPS5763751A
JPS5763751A JP13802080A JP13802080A JPS5763751A JP S5763751 A JPS5763751 A JP S5763751A JP 13802080 A JP13802080 A JP 13802080A JP 13802080 A JP13802080 A JP 13802080A JP S5763751 A JPS5763751 A JP S5763751A
Authority
JP
Japan
Prior art keywords
pole pieces
electron
quality
electron beam
dynamic convergence
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
JP13802080A
Other languages
Japanese (ja)
Inventor
Masaya Takenobu
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP13802080A priority Critical patent/JPS5763751A/en
Publication of JPS5763751A publication Critical patent/JPS5763751A/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
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/701—Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least
    • H01J29/707—Arrangements intimately associated with parts of the gun and co-operating with external magnetic excitation devices

Landscapes

  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

PURPOSE:To improve the focus quality and picture quality easily by compensating both dynamic convergence and deflection defocusing with magnetic field between pole pieces. CONSTITUTION:A beam 5 is shielded with a cylindrical shielding member 14, beams 4, 6 are provided near pole pieces 15a, 15b, 16a, 16b, a core member is provided outisde a neck 17, the pole pieces 15a, 15b, and 16a, 16b are provided to form fanwise shapes which is widen outwardly, and thus a magnetic flux density distribution is compensated with dynamic convergence and simulatneously the shape of the electron beam is extended vertically. Thus, the focus quality and picture quality can be improved easily only by shaping pole pieces in a suitable form.
JP13802080A 1980-10-01 1980-10-01 Electron gun with a plurality of electron beam Pending JPS5763751A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13802080A JPS5763751A (en) 1980-10-01 1980-10-01 Electron gun with a plurality of electron beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13802080A JPS5763751A (en) 1980-10-01 1980-10-01 Electron gun with a plurality of electron beam

Publications (1)

Publication Number Publication Date
JPS5763751A true JPS5763751A (en) 1982-04-17

Family

ID=15212172

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13802080A Pending JPS5763751A (en) 1980-10-01 1980-10-01 Electron gun with a plurality of electron beam

Country Status (1)

Country Link
JP (1) JPS5763751A (en)

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