JPS54144819A - Color receiving tube unit - Google Patents

Color receiving tube unit

Info

Publication number
JPS54144819A
JPS54144819A JP5315478A JP5315478A JPS54144819A JP S54144819 A JPS54144819 A JP S54144819A JP 5315478 A JP5315478 A JP 5315478A JP 5315478 A JP5315478 A JP 5315478A JP S54144819 A JPS54144819 A JP S54144819A
Authority
JP
Japan
Prior art keywords
magnetic shield
funnel
center axis
receiving tube
tube unit
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
JP5315478A
Other languages
Japanese (ja)
Inventor
Yoshifumi Oshima
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electronics 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 Matsushita Electronics Corp filed Critical Matsushita Electronics Corp
Priority to JP5315478A priority Critical patent/JPS54144819A/en
Publication of JPS54144819A publication Critical patent/JPS54144819A/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
    • H01J29/003—Arrangements for eliminating unwanted electromagnetic effects, e.g. demagnetisation arrangements, shielding coils
    • 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

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

PURPOSE:To obtain the demagnetizing effect with good efficiency, by winding the demagnetizing coil on the external circumference plane of the funnel of glass package so that the center axis can be tilted to the center axis of the magnetic shield. CONSTITUTION:In the funnel of the glass package 10, the magnetic shield 11 made of the ferromagnetic material is sealed, and the shadow mask 12 is arranged to the external package 10 so that the magnetic shield 11 and the mask 12 are magnetically coupled. The demagnetizing coil 13 is wound at the external circumference of the funnel of the external package 10 so that the center axis of it can be tilted to that of the magnetic shield 11. Thus, the demagnetizing effect with good efficiency can be obtained.
JP5315478A 1978-05-02 1978-05-02 Color receiving tube unit Pending JPS54144819A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5315478A JPS54144819A (en) 1978-05-02 1978-05-02 Color receiving tube unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5315478A JPS54144819A (en) 1978-05-02 1978-05-02 Color receiving tube unit

Publications (1)

Publication Number Publication Date
JPS54144819A true JPS54144819A (en) 1979-11-12

Family

ID=12934914

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5315478A Pending JPS54144819A (en) 1978-05-02 1978-05-02 Color receiving tube unit

Country Status (1)

Country Link
JP (1) JPS54144819A (en)

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