EP 0824758 B1 20010816 - GRID ELECTRON GUN
Title (en)
GRID ELECTRON GUN
Title (de)
ELETRONENKANONE MIT GITTER
Title (fr)
CANON A ELECTRONS A GRILLE
Publication
Application
Priority
- FR 9600644 W 19960426
- FR 9505408 A 19950505
Abstract (en)
[origin: WO9635219A1] The present invention relates to a grid electron tube whose cathode is comprised of an emissive part (12) which delimits a substantially central recess (11). Said cathode reduces considerably the emission of spurious electrons of the grid by contributing to its cooling. Application particularly to electronic tubes known as IOT.
IPC 1-7
IPC 8 full level
H01J 1/20 (2006.01); H01J 1/46 (2006.01); H01J 3/02 (2006.01); H01J 23/06 (2006.01); H01J 23/07 (2006.01)
CPC (source: EP US)
H01J 1/20 (2013.01 - EP US); H01J 3/027 (2013.01 - EP US); H01J 23/07 (2013.01 - EP US); H01J 25/04 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 9635219 A1 19961107; CN 1099689 C 20030122; CN 1183852 A 19980603; DE 69614520 D1 20010920; DE 69614520 T2 20020508; EP 0824758 A1 19980225; EP 0824758 B1 20010816; FR 2733856 A1 19961108; FR 2733856 B1 19970829; JP 4019431 B2 20071212; JP H11505059 A 19990511; US 5936335 A 19990810
DOCDB simple family (application)
FR 9600644 W 19960426; CN 96193728 A 19960426; DE 69614520 T 19960426; EP 96914252 A 19960426; FR 9505408 A 19950505; JP 53306796 A 19960426; US 94567597 A 19971105