FR845527A - - Google Patents

Info

Publication number
FR845527A
FR845527A FR845527DA FR845527A FR 845527 A FR845527 A FR 845527A FR 845527D A FR845527D A FR 845527DA FR 845527 A FR845527 A FR 845527A
Authority
FR
France
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
Other languages
French (fr)
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.)
Publication date
Application granted granted Critical
Publication of FR845527A publication Critical patent/FR845527A/fr
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
    • H01J29/003—Arrangements for eliminating unwanted electromagnetic effects, e.g. demagnetisation arrangements, shielding coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • 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
    • H01J29/703—Static convergence systems
    • 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
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/867—Means associated with the outside of the vessel for shielding, e.g. magnetic shields
    • 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
    • H01J2229/003—Preventing or cancelling fields entering the enclosure

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
FR845527D 1937-11-03 Expired FR845527A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF83894D DE745611C (en) 1937-11-03 1937-11-03 Device for reducing or suppressing the disturbance effect caused by the magnetic earth field when storing image catcher tubes

Publications (1)

Publication Number Publication Date
FR845527A true FR845527A (en) 1939-08-25

Family

ID=7114180

Family Applications (1)

Application Number Title Priority Date Filing Date
FR845527D Expired FR845527A (en) 1937-11-03

Country Status (2)

Country Link
DE (1) DE745611C (en)
FR (1) FR845527A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL274303A (en) * 1961-02-03

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB393651A (en) * 1930-12-13 1933-06-12 Ulrich Wolfgang Doering Improvements in or relating to cathode ray tubes
CH177048A (en) * 1932-09-10 1935-05-15 Tobis Tonbild Syndikat Aktieng Method and device for displaying electrical modulations with the aid of cathode ray tubes.
US2224933A (en) * 1934-02-09 1940-12-17 Loewe Radio Inc Magnetic distortion correcting means for cathode ray tubes
GB454486A (en) * 1935-02-01 1936-10-01 William Stewart Brown Improvements in and relating to television transmitting apparatus embodying cathode ray tubes
GB449822A (en) * 1935-03-18 1936-07-06 Gen Electric Co Ltd Improvements in or relating to cathode ray tubes for use, for example, in television

Also Published As

Publication number Publication date
DE745611C (en) 1944-05-15

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