FR1444710A - Device for eliminating remanent magnetism in the ferromagnetic core of deflection coils of a cathode-ray tube - Google Patents

Device for eliminating remanent magnetism in the ferromagnetic core of deflection coils of a cathode-ray tube

Info

Publication number
FR1444710A
FR1444710A FR4046A FR4046A FR1444710A FR 1444710 A FR1444710 A FR 1444710A FR 4046 A FR4046 A FR 4046A FR 4046 A FR4046 A FR 4046A FR 1444710 A FR1444710 A FR 1444710A
Authority
FR
France
Prior art keywords
cathode
ray tube
ferromagnetic core
deflection coils
remanent magnetism
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.)
Expired
Application number
FR4046A
Other languages
French (fr)
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.)
Heraus Clevios De GmbH
Original Assignee
Thales Nederland BV
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
Priority claimed from NL646401167A external-priority patent/NL140650B/en
Application filed by Thales Nederland BV filed Critical Thales Nederland BV
Priority to FR4046A priority Critical patent/FR1444710A/en
Application granted granted Critical
Publication of FR1444710A publication Critical patent/FR1444710A/en
Expired 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
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/76—Deflecting by magnetic fields only
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/96—Circuit elements other than coils, reactors or the like, associated with the tube
    • H01J2229/964—Circuit elements other than coils, reactors or the like, associated with the tube associated with the deflection system

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
FR4046A 1964-02-12 1965-02-02 Device for eliminating remanent magnetism in the ferromagnetic core of deflection coils of a cathode-ray tube Expired FR1444710A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR4046A FR1444710A (en) 1964-02-12 1965-02-02 Device for eliminating remanent magnetism in the ferromagnetic core of deflection coils of a cathode-ray tube

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL646401167A NL140650B (en) 1964-02-12 1964-02-12 DEFLECTION SYSTEM FOR A CATHOD RADIUS TUBE WHICH SYSTEM EQUIPPES EACH DEFLECTION COIL WITH RESISTANT MEANS FOR CANCELLATION OF REMANENT MAGNETISM IN THE FERROMAGNETIC CORE OF THE NORMALITER CRITICALLY MUFFLED.
FR4046A FR1444710A (en) 1964-02-12 1965-02-02 Device for eliminating remanent magnetism in the ferromagnetic core of deflection coils of a cathode-ray tube

Publications (1)

Publication Number Publication Date
FR1444710A true FR1444710A (en) 1966-07-08

Family

ID=26161843

Family Applications (1)

Application Number Title Priority Date Filing Date
FR4046A Expired FR1444710A (en) 1964-02-12 1965-02-02 Device for eliminating remanent magnetism in the ferromagnetic core of deflection coils of a cathode-ray tube

Country Status (1)

Country Link
FR (1) FR1444710A (en)

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Legal Events

Date Code Title Description
TP Transmission of property

Owner name: HERAUS CLEVIOS GMBH, DE

Effective date: 20110824