GB1252201A - - Google Patents

Info

Publication number
GB1252201A
GB1252201A GB1252201DA GB1252201A GB 1252201 A GB1252201 A GB 1252201A GB 1252201D A GB1252201D A GB 1252201DA GB 1252201 A GB1252201 A GB 1252201A
Authority
GB
United Kingdom
Prior art keywords
coils
demagnetizing
tube
pair
grill
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
Other languages
English (en)
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 filed Critical
Publication of GB1252201A publication Critical patent/GB1252201A/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
    • H01J29/003—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
    • H01J2229/003—Preventing or cancelling fields entering the enclosure
    • 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)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
GB1252201D 1969-04-17 1969-04-17 Expired GB1252201A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1967669 1969-04-17

Publications (1)

Publication Number Publication Date
GB1252201A true GB1252201A (de) 1971-11-03

Family

ID=10133333

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1252201D Expired GB1252201A (de) 1969-04-17 1969-04-17

Country Status (1)

Country Link
GB (1) GB1252201A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177539A (en) * 1985-05-20 1987-01-21 Mitsubishi Electric Corp Magnetic shielding system in color television receiver

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177539A (en) * 1985-05-20 1987-01-21 Mitsubishi Electric Corp Magnetic shielding system in color television receiver
GB2177539B (en) * 1985-05-20 1989-07-05 Mitsubishi Electric Corp Magnetic shielding system in color television receiver
US4943755A (en) * 1985-05-20 1990-07-24 Mitsubishi Denki Kabushiki Kaisha Magnetic shielding with constant-current coils for CRT

Similar Documents

Publication Publication Date Title
US3322998A (en) Color purity correcting apparatus for colored television picture tubes
GB1480635A (en) Degaussing device for a colour television display tube
US3440483A (en) Color television display device
GB494839A (en) Improvements in and relating to cathode ray apparatus
US2962621A (en) Color television apparatus
US2498354A (en) Magnetic lens system
US2228821A (en) Magnetic sweep coil circuit
ES477438A1 (es) Una unidad deflectora para un tubo de presentacion de image-nes de television en color.
GB1069330A (en) Colour television degaussing apparatus
US2561586A (en) Deflection circuit for cathode-ray tubes
GB1252201A (de)
GB1171138A (en) Improvements in or relating to Ferromagnetic Screening Caps for Colour Picture Tubes having Rectangular Display Screens
US2447804A (en) Electron beam focusing circuit
ES414026A1 (es) Aparato de presentacion de television en colores.
GB451645A (en) Means and method for modulating high frequency currents
US2743381A (en) Raster centering control
GB1249798A (en) Color television picture tube
GB1511677A (en) Deflection unit for colour television
US2563525A (en) Image size control device for
US3324343A (en) Color tube degausser with coil on both sides of shield
US3611221A (en) Convergence yoke apparatus for color television receiver
US2185134A (en) Cathode ray tube apparatus
GB798363A (en) Improvements in or relating to colour-television receivers
US2835846A (en) Controlled beam centering deflection circuit
GB898460A (en) Improvements in and relating to magnetic systems

Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years