EP 1232511 B1 20070815 - OXIDE CATHODE
Title (en)
OXIDE CATHODE
Title (de)
OXIDKATHODE
Title (fr)
CATHODE A OXYDE
Publication
Application
Priority
- EP 01980367 A 20010911
- EP 0110453 W 20010911
- EP 00308164 A 20000919
- EP 01201836 A 20010502
Abstract (en)
[origin: WO0225681A1] The invention relates to a cathode ray tube equipped with at least one oxide cathode, which contains a cathode support having a cathode base that is comprised of a first cathode metal and having a covering layer comprised of ultra-fine metal particles that contain nickel. Said oxide cathode also contains a cathode coating comprised of an electron-emitting material, which contains a particle-particle composite consisting of oxide particles and metal particles. The oxide particles comprise an oxide selected among the oxides of scandium, yttrium and of the lanthanides cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium, and comprise an alkaline earth oxide selected among the group consisting of the oxides of calcium, strontium and barium, and the metal particles contain a second cathode material selected among the group consisting of Ni, Co, Ir, Re, Pd, Rh and Pt. The invention also relates to an oxide cathode.
IPC 8 full level
H01J 1/14 (2006.01); H01J 29/04 (2006.01)
CPC (source: EP KR US)
H01J 1/14 (2013.01 - EP US); H01J 29/04 (2013.01 - KR)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0225681 A1 20020328; AT E370515 T1 20070915; CN 100336154 C 20070905; CN 1395737 A 20030205; DE 50112861 D1 20070927; EP 1232511 A1 20020821; EP 1232511 B1 20070815; JP 2004510291 A 20040402; JP 5048907 B2 20121017; KR 100867149 B1 20081106; KR 20020053863 A 20020705; US 2002163308 A1 20021107; US 7019450 B2 20060328
DOCDB simple family (application)
EP 0110453 W 20010911; AT 01980367 T 20010911; CN 01803899 A 20010911; DE 50112861 T 20010911; EP 01980367 A 20010911; JP 2002529794 A 20010911; KR 20027006342 A 20020517; US 13033802 A 20020516