EP 1006552 A1 20000607 - Method of making a ceramic arc tube for metal halide lamps
Title (en)
Method of making a ceramic arc tube for metal halide lamps
Title (de)
Verfahren zur Herstellung eines keramischen Bogenröhres für Metallhalogenidlampen
Title (fr)
Procédé de fabrication d'un tube d'arc en céramique pour lampes à halogénures métalliques
Publication
Application
Priority
US 20319098 A 19981130
Abstract (en)
A method of making a ceramic arc tube for a metal halide lamp comprises the steps of forming as an integral unit a hollow body having one open end and a substantially closed end. The substantially closed end includes an outwardly extending capillary tube having an electrode receiving aperture therein that communicates with the hollow body. An end cap is then formed for closing the open end. The end cap comprises an annular portion and an extending capillary tube. The end cap is fitted into the open end of the hollow body to form a pre-assembly. The pre-assembly is then fired to seal the end cap to the hollow body to form an assembly and the assembly is subsequently fired to sinter the same. <IMAGE>
IPC 1-7
IPC 8 full level
H01J 9/24 (2006.01); H01J 61/30 (2006.01)
CPC (source: EP)
H01J 9/247 (2013.01); H01J 61/30 (2013.01)
Citation (search report)
- [X] EP 0827177 A2 19980304 - NGK INSULATORS LTD [JP]
- [XA] EP 0188229 A2 19860723 - GEN ELECTRIC [US]
- [A] EP 0175502 A2 19860326 - NGK INSULATORS LTD [JP]
- [A] EP 0331154 A1 19890906 - FELDMUEHLE AG [DE]
- [A] EP 0074188 A2 19830316 - EMI PLC THORN [GB]
- [DA] WO 9406727 A1 19940331 - PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH [DE]
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
EP 1006552 A1 20000607; CN 1255724 A 20000607; JP 2000277013 A 20001006
DOCDB simple family (application)
EP 99123779 A 19991130; CN 99122846 A 19991130; JP 33757399 A 19991129