EP 1209718 A1 20020529 - Color picture tube
Title (en)
Color picture tube
Title (de)
Farbbildröhre
Title (fr)
Tube image couleur
Publication
Application
Priority
EP 00125213 A 20001122
Abstract (en)
A color picture tube having a panel (1) whose outer surface is approximately flat and a shadow mask (5) having a curvature, wherein to increase the curvature of the shadow mask, two electromagnetic quadruple lenses (14, 15) which change the effective dimension s to determine the curvature of the shadow mask are provided. Both of these two electromagnetic quadruple lenses are arranged at the cathode side of an electron gun (9) rather than at a horizontal deflection coil of a deflection yoke (10). <IMAGE>
IPC 1-7
IPC 8 full level
H01J 29/70 (2006.01); H01J 29/86 (2006.01)
CPC (source: EP)
H01J 29/705 (2013.01); H01J 29/861 (2013.01)
Citation (search report)
- [A] US 5536995 A 19960716 - SUGAWARA TSUNEHIKO [JP], et al
- [A] WO 9934392 A1 19990708 - KONINKL PHILIPS ELECTRONICS NV [NL], et al
- [A] WO 0033349 A1 20000608 - KONINKL PHILIPS ELECTRONICS NV [NL]
- [A] EP 0975003 A1 20000126 - MATSUSHITA ELECTRONICS EUROP G [DE]
- [AD] A.A.S. SLUYTERMAN, IDW '98, 7 December 1998 (1998-12-07), pages 413-416, XP002165512
Citation (examination)
EP 1117123 A1 20010718 - HITACHI LTD [JP]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 00125213 A 20001122