Title (en)

COLOR CATHODE RAY TUBE APPARATUS

Publication

EP 0456224 A3 19930224 (EN)

Application

EP 91107505 A 19910508

Priority

JP 11868390 A 19900510

Abstract (en)

[origin: EP0456224A2] The invention provides 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. <IMAGE>

IPC 1-7

H01J 29/70; H01J 29/51

IPC 8 full level

H01J 29/48 (2006.01); H01J 29/56 (2006.01); H01J 29/70 (2006.01); H01J 29/76 (2006.01)

CPC (source: EP)

H01J 29/566 (2013.01); H01J 29/707 (2013.01)

Citation (search report)

• [X] EP 0059004 A1 19820901 - PHILIPS NV [NL]
• [X] DE 2548117 A1 19760513 - VIDEON SA
• [Y] EP 0053853 A1 19820616 - PHILIPS NV [NL]
• [YD] EP 0348912 A2 19900103 - TOSHIBA KK [JP]
• [Y] US 2866125 A 19581223 - JOHAN HAANTJES, et al
• [Y] US 4755714 A 19880705 - SLUYTERMAN ALBERTUS A S [NL]
• [A] GB 1534814 A 19781206 - TDK ELECTRONICS CO LTD

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0456224 A2 19911113; EP 0456224 A3 19930224; EP 0456224 B1 19960327; DE 69118235 D1 19960502; DE 69118235 T2 19960822; JP 3034906 B2 20000417; JP H0417238 A 19920122

DOCDB simple family (application)

EP 91107505 A 19910508; DE 69118235 T 19910508; JP 11868390 A 19900510