EP 0957505 A3 20020731 - Electron gun assembly
Title (en)
Electron gun assembly
Title (de)
Elektronenkanonenvorrichtung
Title (fr)
Dispositif de canon à électrons
Publication
Application
Priority
GB 9809819 A 19980509
Abstract (en)
[origin: GB2337152A] An electron gun assembly, e.g. for an IOT, includes a cathode 1, control grid 5 located in front of it and a focus electrode 6. The control electrode 5 is integral with a cylindrical support 11 and formed of pyrolytic graphite. Similarly, the focus electrode 6 is integral with a cylindrical support 16 and is formed of molybdenum. The control grid 5 and focus electrode 6 are in electrical contact with one another and are mounted on a common mount 15 located behind the front face of the cathode 1, giving a simple structure having low thermally capacity and being mechanically robust.
IPC 1-7
IPC 8 full level
H01J 23/065 (2006.01)
CPC (source: EP)
H01J 23/065 (2013.01); H01J 2225/04 (2013.01)
Citation (search report)
- [XY] US 3967150 A 19760629 - LIEN ERLING L, et al
- [X] GB 2287579 A 19950920 - EEV LTD [GB]
- [E] EP 0945891 A1 19990929 - EEV LTD [GB]
- [Y] GB 1220630 A 19710127 - RAYTHEON CO [US]
- [Y] GB 1353547 A 19740522 - VARIAN ASSOCIATES
- [A] US 4748369 A 19880531 - PHILLIPS ROBERT M [US], et al
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
GB 2337152 A 19991110; GB 9910501 D0 19990707; CA 2271253 A1 19991109; EP 0957505 A2 19991117; EP 0957505 A3 20020731; GB 9809819 D0 19980708
DOCDB simple family (application)
GB 9910501 A 19990506; CA 2271253 A 19990507; EP 99303558 A 19990506; GB 9809819 A 19980509