JPS5667138A - Manufacturing method of color picture tube - Google Patents

Manufacturing method of color picture tube

Info

Publication number
JPS5667138A
JPS5667138A JP14280579A JP14280579A JPS5667138A JP S5667138 A JPS5667138 A JP S5667138A JP 14280579 A JP14280579 A JP 14280579A JP 14280579 A JP14280579 A JP 14280579A JP S5667138 A JPS5667138 A JP S5667138A
Authority
JP
Japan
Prior art keywords
magnetic
magnetization
magnetic body
pulse power
pulsative
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
JP14280579A
Other languages
Japanese (ja)
Other versions
JPH0132620B2 (en
Inventor
Katsue Morohashi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14280579A priority Critical patent/JPS5667138A/en
Publication of JPS5667138A publication Critical patent/JPS5667138A/en
Publication of JPH0132620B2 publication Critical patent/JPH0132620B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/44—Factory adjustment of completed discharge tubes or lamps to comply with desired tolerances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/0007—Elimination of unwanted or stray electromagnetic effects
    • H01J2229/0046—Preventing or cancelling fields within the enclosure
    • H01J2229/0053—Demagnetisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

PURPOSE:To more precisely magnetize a magnetic body and more accurately adjust its magnetization by using pulsative magnetic field for the magnetization or demagnetization of the magnetic body or a demagnetized and applying the simultaneous pulsative magnetic field of the limitted time difference to said magnatic body. CONSTITUTION:A magnetizing device 5 which can multielectrode-magnetize and -demagnetize a magnetic body 4 outside a neck 2 which is opposed to the magnetic body 4 and a pulse power supply 4 which supplies the pulse current with a preset wave height value is connected to this device 5. For example, eight magnetic pole forming magnetic cores 111 to 181 are provided on an annular support body consisting of high magnetic members at the position which is opposed to the magnetic body 4 mounted in the neck 2 and the current input and output sections 112 to 182 where coils are wound around these magnetic cores are connected to pulse power supplies 11 to 18. These pulse power supplies are simultaneously controlled by a controller. This can more precisely perform magnetization and more accurately do adjustment.
JP14280579A 1979-11-06 1979-11-06 Manufacturing method of color picture tube Granted JPS5667138A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14280579A JPS5667138A (en) 1979-11-06 1979-11-06 Manufacturing method of color picture tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14280579A JPS5667138A (en) 1979-11-06 1979-11-06 Manufacturing method of color picture tube

Publications (2)

Publication Number Publication Date
JPS5667138A true JPS5667138A (en) 1981-06-06
JPH0132620B2 JPH0132620B2 (en) 1989-07-07

Family

ID=15324042

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14280579A Granted JPS5667138A (en) 1979-11-06 1979-11-06 Manufacturing method of color picture tube

Country Status (1)

Country Link
JP (1) JPS5667138A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58175232A (en) * 1982-04-07 1983-10-14 Mitsubishi Electric Corp Automatic regulator for color picture tube
JPS6222351A (en) * 1985-07-19 1987-01-30 Mitsubishi Electric Corp Auxiliary adjusting device for convergence

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52117517A (en) * 1976-03-25 1977-10-03 Philips Nv Color television display tube

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52117517A (en) * 1976-03-25 1977-10-03 Philips Nv Color television display tube

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58175232A (en) * 1982-04-07 1983-10-14 Mitsubishi Electric Corp Automatic regulator for color picture tube
JPH0444376B2 (en) * 1982-04-07 1992-07-21 Mitsubishi Electric Corp
JPS6222351A (en) * 1985-07-19 1987-01-30 Mitsubishi Electric Corp Auxiliary adjusting device for convergence
JPH0527936B2 (en) * 1985-07-19 1993-04-22 Mitsubishi Electric Corp

Also Published As

Publication number Publication date
JPH0132620B2 (en) 1989-07-07

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