EP 0843333 A3 19990602 - Color cathode ray tube provided with a beam convergence adjustment device
Title (en)
Color cathode ray tube provided with a beam convergence adjustment device
Title (de)
Mit einer Justiervorrichtung, zur Konvergierung eines Strahlenbündels versehene Farbkathodenstrahlröhre
Title (fr)
Tube à rayons cathodiques couleur pourvu d'un dispositif d'ajustement pour la convergence d'un faisceau
Publication
Application
Priority
JP 30271496 A 19961114
Abstract (en)
[origin: EP0843333A2] A color cathode ray tube includes an evacuated envelope (1) formed of a panel portion (1A) carrying a phosphor screen (4) on an inner surface thereof, a neck portion (1B), a funnel portion (1C) connecting the panel portion and the neck portion, a three-beam, in-line type electron gun (2) housed in the neck portion for generating a center electron beam and two side electron beams, a deflection device (6), adjustable magnetic field producing device (7, 12) mounted on the neck portion for moving the two side electron beams in mutually opposing directions, and a magnetic structure mounted on the neck portion for producing such a fixed magnetic field as to move the two side electron beams in mutually opposing directions. <IMAGE>
IPC 1-7
IPC 8 full level
H01J 31/20 (2006.01); H01J 29/54 (2006.01); H01J 29/68 (2006.01)
CPC (source: EP)
H01J 29/68 (2013.01); H01J 2229/5682 (2013.01); H01J 2229/703 (2013.01)
Citation (search report)
- [XY] US 4091347 A 19780523 - BARBIN ROBERT LLOYD
- [Y] US 4670726 A 19870602 - OGATA MASAO [JP], et al
- [DA] US 3725831 A 19730403 - BARBIN R
- [DA] US 3808570 A 19740430 - THOMPSON I, et al
- [A] US 3898597 A 19750805 - VONK RENSO
- [A] US 4117433 A 19780926 - SMITH JOSEPH LELAND
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0843333 A2 19980520; EP 0843333 A3 19990602; JP H10144236 A 19980529; KR 19980042445 A 19980817; SG 74603 A1 20000822
DOCDB simple family (application)
EP 97119888 A 19971113; JP 30271496 A 19961114; KR 19970060107 A 19971114; SG 1997003983 A 19971107