JPS5782947A - Color cathode tube - Google Patents

Color cathode tube

Info

Publication number
JPS5782947A
JPS5782947A JP15921780A JP15921780A JPS5782947A JP S5782947 A JPS5782947 A JP S5782947A JP 15921780 A JP15921780 A JP 15921780A JP 15921780 A JP15921780 A JP 15921780A JP S5782947 A JPS5782947 A JP S5782947A
Authority
JP
Japan
Prior art keywords
neck section
born
funnel
crt1
regions
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
JP15921780A
Other languages
Japanese (ja)
Other versions
JPH0142463B2 (en
Inventor
Tetsuya Watanabe
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 JP15921780A priority Critical patent/JPS5782947A/en
Publication of JPS5782947A publication Critical patent/JPS5782947A/en
Publication of JPH0142463B2 publication Critical patent/JPH0142463B2/ja
Granted 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
    • H01J29/702—Convergence correction arrangements therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/56—Correction of beam optics
    • H01J2229/568—Correction of beam optics using supplementary correction devices
    • H01J2229/5681—Correction of beam optics using supplementary correction devices magnetic
    • H01J2229/5682—Permanently magnetised materials, e.g. permanent magnets

Abstract

PURPOSE:To perform the high magnetizing work accurately by mounting a plurality of magnetic ring stripes at the neck section of a color CRT to form the magnetized regions having different width. CONSTITUTION:A color CRT1 is comprising a panel 2 having the inner face applied with a phosphor film, a funnel 3 of conical shape, a neck section 4 composed of a glass tube to be connected to the funnel 3 and an electron gun 5 to be encapsulated in the neck section 4. CRT1 is operated while being fixed with a deflection yoke 8 and a magnetic ring 9. The magnetic member 9 has two stripe-shaped magnetized regions B1 and B2 shown by the slant line section when developed. here the regions B1, B2 have different width where the majority of the magnetization required for the correction is born by the wider region while the remainder is born by the narrow region.
JP15921780A 1980-11-11 1980-11-11 Color cathode tube Granted JPS5782947A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15921780A JPS5782947A (en) 1980-11-11 1980-11-11 Color cathode tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15921780A JPS5782947A (en) 1980-11-11 1980-11-11 Color cathode tube

Publications (2)

Publication Number Publication Date
JPS5782947A true JPS5782947A (en) 1982-05-24
JPH0142463B2 JPH0142463B2 (en) 1989-09-12

Family

ID=15688883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15921780A Granted JPS5782947A (en) 1980-11-11 1980-11-11 Color cathode tube

Country Status (1)

Country Link
JP (1) JPS5782947A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1187168A1 (en) * 2000-09-12 2002-03-13 Thomson Licensing, Inc. Apparatus for correcting static electron beam landing error

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5424536A (en) * 1977-07-26 1979-02-23 Rca Corp Method of and device for concentrating static beam

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5424536A (en) * 1977-07-26 1979-02-23 Rca Corp Method of and device for concentrating static beam

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1187168A1 (en) * 2000-09-12 2002-03-13 Thomson Licensing, Inc. Apparatus for correcting static electron beam landing error

Also Published As

Publication number Publication date
JPH0142463B2 (en) 1989-09-12

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