EP0218561A3 - Deflection unit with ferromagnetic supports to be magnetized in relation to the coupling with the kinescope, and use procedure thereof - Google Patents

Deflection unit with ferromagnetic supports to be magnetized in relation to the coupling with the kinescope, and use procedure thereof Download PDF

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Publication number
EP0218561A3
EP0218561A3 EP86830286A EP86830286A EP0218561A3 EP 0218561 A3 EP0218561 A3 EP 0218561A3 EP 86830286 A EP86830286 A EP 86830286A EP 86830286 A EP86830286 A EP 86830286A EP 0218561 A3 EP0218561 A3 EP 0218561A3
Authority
EP
European Patent Office
Prior art keywords
kinescope
yoke
magnetized
relation
coupling
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.)
Withdrawn
Application number
EP86830286A
Other languages
German (de)
French (fr)
Other versions
EP0218561A2 (en
Inventor
Alfredo Fazzini
Romano Bonifazi
Rocco Panico
Massimo Madiai
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.)
Plessey SpA Dite Ste
Original Assignee
Plessey SpA Dite Ste
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 Plessey SpA Dite Ste filed Critical Plessey SpA Dite Ste
Publication of EP0218561A2 publication Critical patent/EP0218561A2/en
Publication of EP0218561A3 publication Critical patent/EP0218561A3/en
Withdrawn legal-status Critical Current

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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
    • H01J29/701—Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least

Landscapes

  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

A deflection yoke for TV monitors and the like, with fer­ romagnetic supports intended to correct distortions in the images obtained from the kinescope (C) to be coupled or being coupled with the yoke, comprising a magnetizable support (18) disposed around the yoke past the deflection zone, in the broader part of the yoke, whose local magnetiza­ tions are provided for correcting the distortions, in particular for the geometry correction.
EP86830286A 1985-10-08 1986-10-07 Deflection unit with ferromagnetic supports to be magnetized in relation to the coupling with the kinescope, and use procedure thereof Withdrawn EP0218561A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT09497/85A IT1201361B (en) 1985-10-08 1985-10-08 DEFLECTION UNIT WITH FERROMAGNETIC SUPPORTS TO BE MAGNETIZED ACCORDING TO THE COUPLING WITH THE CINESCOPE, AND ITS PROCEDURE FOR USE
IT949785 1985-10-08

Publications (2)

Publication Number Publication Date
EP0218561A2 EP0218561A2 (en) 1987-04-15
EP0218561A3 true EP0218561A3 (en) 1987-12-02

Family

ID=11131005

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86830286A Withdrawn EP0218561A3 (en) 1985-10-08 1986-10-07 Deflection unit with ferromagnetic supports to be magnetized in relation to the coupling with the kinescope, and use procedure thereof

Country Status (3)

Country Link
EP (1) EP0218561A3 (en)
JP (1) JPS62115631A (en)
IT (1) IT1201361B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB823083A (en) * 1956-07-18 1959-11-04 Cole E K Ltd Improvements in or relating to the mounting of scanning coil assemblies on cathode ray tubes
DE3146441A1 (en) * 1980-12-05 1982-07-01 Naamloze Vennootschap Philips' Gloeilampenfabrieken, 5621 Eindhoven "CATHODE RADIATION TUBES WITH A DEFLECTION UNIT WITH A STRUCTURE OF PERMANENT MAGNETS THAT GENERATE A STATIC MULTIPOLARGE FOR SIMULATING A MODULATION OF THE DYNAMIC DEFLECTION FIELD"
US4398166A (en) * 1981-06-01 1983-08-09 Northern Telecom Inc. Compensator for CRT deflection yokes and the like
EP0123612A2 (en) * 1983-04-26 1984-10-31 THOMSON TUBES & DISPLAYS SA Apparatus for speedily adjusting the static convergence and the purity in a colour television tube by making use of a permanent magnet
GB2147143A (en) * 1983-09-21 1985-05-01 Philips Nv Electromagnetic deflection unit for a colour display tube

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB823083A (en) * 1956-07-18 1959-11-04 Cole E K Ltd Improvements in or relating to the mounting of scanning coil assemblies on cathode ray tubes
DE3146441A1 (en) * 1980-12-05 1982-07-01 Naamloze Vennootschap Philips' Gloeilampenfabrieken, 5621 Eindhoven "CATHODE RADIATION TUBES WITH A DEFLECTION UNIT WITH A STRUCTURE OF PERMANENT MAGNETS THAT GENERATE A STATIC MULTIPOLARGE FOR SIMULATING A MODULATION OF THE DYNAMIC DEFLECTION FIELD"
US4398166A (en) * 1981-06-01 1983-08-09 Northern Telecom Inc. Compensator for CRT deflection yokes and the like
EP0123612A2 (en) * 1983-04-26 1984-10-31 THOMSON TUBES & DISPLAYS SA Apparatus for speedily adjusting the static convergence and the purity in a colour television tube by making use of a permanent magnet
GB2147143A (en) * 1983-09-21 1985-05-01 Philips Nv Electromagnetic deflection unit for a colour display tube

Also Published As

Publication number Publication date
EP0218561A2 (en) 1987-04-15
IT8509497A0 (en) 1985-10-08
IT1201361B (en) 1989-01-27
JPS62115631A (en) 1987-05-27

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