EP 0361266 A3 19901114 - X-RAY IMAGE INTENSIFIER
Title (en)
X-RAY IMAGE INTENSIFIER
Publication
Application
Priority
DE 8812346 U 19880929
Abstract (en)
[origin: EP0361266A2] An X-ray image intensifier (5a) possesses an electrode system for focusing onto the output fluorescent screen (7) of the X-ray intensifier (5a) the electrons generated during infringement of the X-ray radiation on the input fluorescent screen (4) of the X-ray image intensifier (5a). Said electrode system is to be simplified, the number of electrodes being reduced and the imaging characteristics being improved. <??>According to the invention, the object is achieved when one electrode of the electron optics composed of electrically resistant material is applied as a coating (15) on a one-piece electrode carrier (14a) forming the jacket of the vacuum vessel, and a voltage is applied to the coating (15), so that the potential field rises continuously in the region from the input fluorescent screen (4) to the output fluorescent screen (7). <IMAGE>
IPC 1-7
IPC 8 full level
H01J 29/62 (2006.01); H01J 31/50 (2006.01)
CPC (source: EP US)
H01J 29/622 (2013.01 - EP US); H01J 31/501 (2013.01 - EP US)
Citation (search report)
- [X] FR 2231103 A1 19741220 - SOUTH AFRICAN INVENTIONS [ZA]
- [X] GB 471817 A 19370910 - TELEFUNKEN GMBH
- [A] DE 1035282 B 19580731 - FRITZ SCHNEIDER DR
- [A] GB 839681 A 19600629 - RAULAND CORP
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
EP 0361266 A2 19900404; EP 0361266 A3 19901114; DE 8812346 U1 19900201; JP H0250947 U 19900410; US 4996414 A 19910226
DOCDB simple family (application)
EP 89117243 A 19890918; DE 8812346 U 19880929; JP 11082989 U 19890920; US 41374489 A 19890922