EP 1292963 A1 20030319 - CATHODE WITH OPTIMISED THERMAL EFFICIENCY
Title (en)
CATHODE WITH OPTIMISED THERMAL EFFICIENCY
Title (de)
KATHODE MIT OPTIMIERTEM THERMISCHEN WIRKUNGSGRAD
Title (fr)
CATHODE A RENDEMENT THERMIQUE OPTIMISE
Publication
Application
Priority
- FR 0101763 W 20010607
- FR 0007911 A 20000621
Abstract (en)
[origin: WO0199140A1] The invention concerns a cathode structure for cathode ray tube electron gun for quick ignition of the cathode and excellent thermal efficiency. The cathode comprises a closed chamber consisting of a cap (11) supporting the emitting part of the cathode and a cup-shaped skirt (14); the skirt has a concave inner surface so as to reflect by radiation the thermal energy accumulated by the skirt walls towards the cap zone supporting the emitting part.
IPC 1-7
IPC 8 full level
H01J 1/20 (2006.01); H01J 1/28 (2006.01); H01J 29/04 (2006.01)
CPC (source: EP KR US)
H01J 1/20 (2013.01 - EP KR US); H01J 29/04 (2013.01 - EP US)
Citation (search report)
See references of WO 0199140A1
Designated contracting state (EPC)
AT BE CH DE FR GB LI
DOCDB simple family (publication)
WO 0199140 A1 20011227; AU 6612601 A 20020102; CN 1224997 C 20051026; CN 1446369 A 20031001; EP 1292963 A1 20030319; FR 2810789 A1 20011228; JP 2004514241 A 20040513; KR 20030011917 A 20030211; MX PA02012357 A 20040630; US 2003164667 A1 20030904; US 6946781 B2 20050920
DOCDB simple family (application)
FR 0101763 W 20010607; AU 6612601 A 20010607; CN 01811574 A 20010607; EP 01943582 A 20010607; FR 0007911 A 20000621; JP 2002503898 A 20010607; KR 20027017418 A 20021220; MX PA02012357 A 20010607; US 29765702 A 20021209