JPS5624734A - Manufacturing method for color picture tube - Google Patents

Manufacturing method for color picture tube

Info

Publication number
JPS5624734A
JPS5624734A JP10023479A JP10023479A JPS5624734A JP S5624734 A JPS5624734 A JP S5624734A JP 10023479 A JP10023479 A JP 10023479A JP 10023479 A JP10023479 A JP 10023479A JP S5624734 A JPS5624734 A JP S5624734A
Authority
JP
Japan
Prior art keywords
magnetic
temperature
magnetization
magnetic field
pole
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
JP10023479A
Other languages
Japanese (ja)
Other versions
JPS637420B2 (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 JP10023479A priority Critical patent/JPS5624734A/en
Publication of JPS5624734A publication Critical patent/JPS5624734A/en
Publication of JPS637420B2 publication Critical patent/JPS637420B2/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

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 obtain hard magnetization which has a strong resistance to the disturbance from an external magnetic field by keeping a magnetic substance below its magnetic transformation temperature and/or at such a high temperature as to eliminate its self-magnetization, and subsequently subjecting it to an external magnetization field to form desired magnetic poles at predetermined positions. CONSTITUTION:An electron beam 28 is formed in such a way that it strikes on a fluorescent screen 21 on the inner surface of a panel 22 and a magnetic substance 31 is heated with a high frequency heating coil 35. When the magnetic substance 31 consists of deposition-hardened members, such as Spinodal and Bicalloy, the temperature is below its magnetic transformation temperature, while, when it consists of Sr ferrite, or the like the temperature is such that its self-magnetization is eliminated. Since this permits the magnetic substance 31 to reduce its retention force and to easily be magnetized, a preset magnetic pole can be formed even if an external magnetic field is smaller than the value at normal temperature. Subsequently, the magnetic pole is magnetized into a static or pulse magnetic field using a DC power supply 33 or a high frequency power supply 34 which is connected to a multi-pole magnetic field generator 32.
JP10023479A 1979-08-08 1979-08-08 Manufacturing method for color picture tube Granted JPS5624734A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10023479A JPS5624734A (en) 1979-08-08 1979-08-08 Manufacturing method for color picture tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10023479A JPS5624734A (en) 1979-08-08 1979-08-08 Manufacturing method for color picture tube

Publications (2)

Publication Number Publication Date
JPS5624734A true JPS5624734A (en) 1981-03-09
JPS637420B2 JPS637420B2 (en) 1988-02-16

Family

ID=14268571

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10023479A Granted JPS5624734A (en) 1979-08-08 1979-08-08 Manufacturing method for color picture tube

Country Status (1)

Country Link
JP (1) JPS5624734A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02156700A (en) * 1988-12-09 1990-06-15 Matsushita Electric Ind Co Ltd Inserting pitch switching device

Also Published As

Publication number Publication date
JPS637420B2 (en) 1988-02-16

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