EP0317999A3 - Ferrite sheet for correcting magnetic field produced by deflection yoke - Google Patents

Ferrite sheet for correcting magnetic field produced by deflection yoke Download PDF

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Publication number
EP0317999A3
EP0317999A3 EP88119584A EP88119584A EP0317999A3 EP 0317999 A3 EP0317999 A3 EP 0317999A3 EP 88119584 A EP88119584 A EP 88119584A EP 88119584 A EP88119584 A EP 88119584A EP 0317999 A3 EP0317999 A3 EP 0317999A3
Authority
EP
European Patent Office
Prior art keywords
magnetic field
deflection yoke
field produced
ferrite sheet
correcting magnetic
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.)
Granted
Application number
EP88119584A
Other versions
EP0317999B1 (en
EP0317999A2 (en
Inventor
Hiroka Yamasaki
Takashi Sakauchi
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.)
Kanegafuchi Chemical Industry Co Ltd
Original Assignee
Kanegafuchi Chemical Industry Co Ltd
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 Kanegafuchi Chemical Industry Co Ltd filed Critical Kanegafuchi Chemical Industry Co Ltd
Publication of EP0317999A2 publication Critical patent/EP0317999A2/en
Publication of EP0317999A3 publication Critical patent/EP0317999A3/en
Application granted granted Critical
Publication of EP0317999B1 publication Critical patent/EP0317999B1/en
Expired 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
    • H01J29/72—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
    • H01J29/46—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
EP19880119584 1987-11-25 1988-11-24 Ferrite sheet for correcting magnetic field produced by deflection yoke Expired EP0317999B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP179406/87 1987-11-25
JP1987179406U JPH0755810Y2 (en) 1987-11-25 1987-11-25 Ferrite sheet for magnetic field correction of deflection yoke

Publications (3)

Publication Number Publication Date
EP0317999A2 EP0317999A2 (en) 1989-05-31
EP0317999A3 true EP0317999A3 (en) 1989-10-18
EP0317999B1 EP0317999B1 (en) 1992-09-16

Family

ID=16065313

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880119584 Expired EP0317999B1 (en) 1987-11-25 1988-11-24 Ferrite sheet for correcting magnetic field produced by deflection yoke

Country Status (3)

Country Link
EP (1) EP0317999B1 (en)
JP (1) JPH0755810Y2 (en)
DE (1) DE3874686T2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1007166A3 (en) * 1993-05-13 1995-04-11 Philips Electronics Nv TUBE WITH deflection.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4246560A (en) * 1977-09-21 1981-01-20 Hitachi, Ltd. Self-converging deflection yoke
US4449109A (en) * 1982-11-08 1984-05-15 Ball Corporation Magnet support collar
EP0180947A2 (en) * 1984-11-08 1986-05-14 Sony Corporation Electron beam deflection yoke

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4246560A (en) * 1977-09-21 1981-01-20 Hitachi, Ltd. Self-converging deflection yoke
US4449109A (en) * 1982-11-08 1984-05-15 Ball Corporation Magnet support collar
EP0180947A2 (en) * 1984-11-08 1986-05-14 Sony Corporation Electron beam deflection yoke

Also Published As

Publication number Publication date
JPH0183252U (en) 1989-06-02
JPH0755810Y2 (en) 1995-12-20
DE3874686T2 (en) 1993-04-15
EP0317999B1 (en) 1992-09-16
EP0317999A2 (en) 1989-05-31
DE3874686D1 (en) 1992-10-22

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