EP 0217473 A2 19870408 - Color cathode ray tube having improved internal magnetic shield.
Title (en)
Color cathode ray tube having improved internal magnetic shield.
Title (de)
Farbbildröhre mit innerer magnetischer Abschirmung.
Title (fr)
Tube image couleur muni d'un écran magnétique interne.
Publication
Application
Priority
US 78388585 A 19851003
Abstract (en)
Internal magnetic shield for color television picture tube has a pair of slot-shaped openings, facing each other above and below the Z axis, and an oblong-shaped aperture surrounding the Z axis, having a length-to-width ratio of about 1.7 to 2.1.
IPC 1-7
IPC 8 full level
H01J 29/02 (2006.01); H01J 9/14 (2006.01); H01J 29/06 (2006.01)
CPC (source: EP KR)
H01J 29/06 (2013.01 - EP KR)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0217473 A2 19870408; EP 0217473 A3 19880107; EP 0217473 B1 19910130; CA 1270888 A 19900626; DE 3677310 D1 19910307; JP 2588513 B2 19970305; JP S6288245 A 19870422; KR 870004484 A 19870509
DOCDB simple family (application)
EP 86201680 A 19860930; CA 520562 A 19861015; DE 3677310 T 19860930; JP 23339186 A 19861002; KR 860008268 A 19861002