Global Patent Index - EP 0843333 A3

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

EP 0843333 A3 19990602 (EN)

Application

EP 97119888 A 19971113

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

H01J 29/70

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)

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