EP 0511360 B1 19960131 - ELECTRON SOURCE AND METHOD FOR PRODUCING SAME
Title (en)
ELECTRON SOURCE AND METHOD FOR PRODUCING SAME
Title (de)
ELEKTRONENQUELLE UND HERSTELLUNGSVERFAHREN
Title (fr)
SOURCE D'ELECTRONS ET PROCEDE DE REALISATION
Publication
Application
Priority
- FR 9100903 W 19911115
- FR 9014287 A 19901116
Abstract (en)
[origin: WO9209095A1] An electron source is provided, particularly as a point microcathode wherein a microcathode (MP) is located in a cavity (CA) of a dielectric (3). A first gate electrode (VG1) surrounds the cavity (CA) and a second gate electrode (VG2) surrounds the first gate electrode (VG1). The various electrodes have potentials such that the first gate electrode (VG1) acts as an extraction electrode while the second gate electrode acts as a focusing electrode. Applications: field effect microcathodes.
IPC 1-7
IPC 8 full level
H01J 3/18 (2006.01); H01J 1/304 (2006.01); H01J 3/02 (2006.01); H01J 9/02 (2006.01)
CPC (source: EP US)
H01J 3/022 (2013.01 - EP US); H01J 9/025 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB IT NL SE
DOCDB simple family (publication)
WO 9209095 A1 19920529; DE 69116859 D1 19960314; DE 69116859 T2 19960605; EP 0511360 A1 19921104; EP 0511360 B1 19960131; FR 2669465 A1 19920522; FR 2669465 B1 19960712; JP 3107818 B2 20001113; JP H05505906 A 19930826; US 5581146 A 19961203
DOCDB simple family (application)
FR 9100903 W 19911115; DE 69116859 T 19911115; EP 91920863 A 19911115; FR 9014287 A 19901116; JP 50042492 A 19911115; US 45882195 A 19950602