发明名称 |
CATHODE RAY TUBE COMPRISING A CATHODE OF A COMPOSITE MATERIAL |
摘要 |
A cathode ray tube provided with at least one oxide cathode comprising a cathode carrier with a cathode base of a cathode metal and a cathode coating of an electron-emitting material containing a particle-particle composite material of oxide particles of an alkaline earth oxide selected from the group formed by the oxides of calcium, strontium and barium, and oxide particles having a first grain size distribution of an oxide selected from the group formed by the oxides of scandium, yttrium and the lanthanoids, and oxide particles having a second grain size distribution of an oxide selected from the group formed by the oxides of scandium, yttrium and the lanthanoids. The invention also relates to an oxide cathode. |
申请公布号 |
WO0225682(A1) |
申请公布日期 |
2002.03.28 |
申请号 |
WO2001EP10333 |
申请日期 |
2001.09.06 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V.;PHILIPS CORPORATE INTELLECTUAL PROPERTY GMBH |
发明人 |
GAERTNER, GEORG, F.;VAN DER HEIDE, PETRUS, A., M.;JOHNSTONE, WYNDHAM, M. |
分类号 |
H01J1/20;H01J1/142;H01J29/04 |
主分类号 |
H01J1/20 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|