EP 0516229 A1 19921202 - Display tube including a convergence correction device.
Title (en)
Display tube including a convergence correction device.
Title (de)
Bildwiedergaberöhre mit Konvergenzkorrekturanordnung.
Title (fr)
Tube reproducteur d'image muni d'un dispositif de correction de convergence.
Publication
Application
Priority
- EP 92201467 A 19920522
- EP 91201315 A 19910531
Abstract (en)
Display tube including a convergence correction device which comprises a plurality of correction coils having coplanar axes and being arranged around the tube neck. The coils are of the planar type. More specifically, there are two sets of four coils for generating two differently oriented four-pole fields and two sets of six coils for generating two differently oriented six-pole fields, while all these coils are arranged on one flexible support which is wound around the tube neck a number of times, for example, one set of coils of each turn. <IMAGE>
IPC 1-7
IPC 8 full level
H01J 29/70 (2006.01)
CPC (source: EP)
H01J 29/703 (2013.01); H01J 2229/7037 (2013.01)
Citation (search report)
- [X] WO 8605318 A1 19860912 - THOMSON BRANDT GMBH [DE]
- [Y] EP 0135072 A1 19850327 - HITACHI LTD [JP]
- [X] GB 2223124 A 19900328 - RCA LICENSING CORP [US]
- [A] EP 0068420 A2 19830105 - HITACHI LTD [JP]
- [A] US 4107582 A 19780815 - CORPEW CHARLES ROBERT
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DOCDB simple family (application)
EP 92201467 A 19920522