EP 1068629 A1 20010117 - ELECTRON GUN OF THE "ELECTRON TORCH" TYPE
Title (en)
ELECTRON GUN OF THE "ELECTRON TORCH" TYPE
Title (de)
ELEKTRONENKANONE VOM ELEKTRONENFACKEL-TYP
Title (fr)
CANON A ELECTRONS DE TYPE "TORCHE A ELECTRONS"
Publication
Application
Priority
- FR 9900775 W 19990402
- FR 9804177 A 19980403
Abstract (en)
[origin: FR2777113A1] The invention concerns an electron-emitting device comprising: a chamber (8) closed on one side by a membrane (6) capable of being traversed by an electron beam (4); a cathode with at least one microtip (2), for emitting an electron beam (4), characterised in that the cathode microtips are distributed by zones, according to a certain patterns, each zone comprising at least one microtip, the membrane having planar zones (26-1, 26-3) and one or several thicker reinforcing zones (26-2, 26-4, 26-6) separating the planar zones, each microtip zone being opposite a planar zone.
IPC 1-7
IPC 8 full level
H01J 33/00 (2006.01); H01J 33/02 (2006.01); H01J 33/04 (2006.01)
CPC (source: EP)
H01J 33/00 (2013.01)
Citation (search report)
See references of WO 9952124A1
Designated contracting state (EPC)
CH DE GB LI NL
DOCDB simple family (publication)
FR 2777113 A1 19991008; FR 2777113 B1 20000505; DE 69902156 D1 20020822; DE 69902156 T2 20030327; EP 1068629 A1 20010117; EP 1068629 B1 20020717; JP 2002510848 A 20020409; WO 9952124 A1 19991014
DOCDB simple family (application)
FR 9804177 A 19980403; DE 69902156 T 19990402; EP 99911868 A 19990402; FR 9900775 W 19990402; JP 2000542783 A 19990402