(19)
(11) EP 0 456 224 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
24.02.1993 Bulletin 1993/08

(43) Date of publication A2:
13.11.1991 Bulletin 1991/46

(21) Application number: 91107505.9

(22) Date of filing: 08.05.1991
(51) International Patent Classification (IPC)5: H01J 29/70, H01J 29/51
(84) Designated Contracting States:
DE FR GB

(30) Priority: 10.05.1990 JP 118683/90

(71) Applicant: KABUSHIKI KAISHA TOSHIBA
Kawasaki-shi, Kanagawa-ken 210 (JP)

(72) Inventors:
  • Inoue, Masatsugu, c/o Intellectual Property Div.
    Minato-ku, Tokyo 105 (JP)
  • Tokita, Kiyoshi, c/o Intellectual Property Div.
    Minato-ku, Tokyo 105 (JP)
  • Fujiwara, Takeshi, c/o Intellectual Property Div.
    Minato-ku, Tokyo 105 (JP)

(74) Representative: Henkel, Feiler, Hänzel & Partner 
Möhlstrasse 37
81675 München
81675 München (DE)


(56) References cited: : 
   
       


    (54) Color cathode ray tube apparatus


    (57) Disclosure is given for a novel color cathode ray tube apparatus incorporating an eight-pole permanent magnet means (70), and thereby deflective aberration of electron beams caused by deflected magnetic field can securely be minimized. Integral structure of a plurality of magnetic poles permits the concerned to easily form up the eight-pole permanent magnet ring.






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