EP 1481418 B1 20111130 - SHORT ARC HIGH-PRESSURE DISCHARGE LAMP-
Title (en)
SHORT ARC HIGH-PRESSURE DISCHARGE LAMP-
Title (de)
KURZBOGEN-HOCHDRUCKENTLADUNGSLAMPE
Title (fr)
LAMPE A DECHARGE HAUTE PRESSION A ARC COURT
Publication
Application
Priority
- DE 0300707 W 20030305
- DE 10209426 A 20020305
Abstract (en)
[origin: WO03075310A1] The invention relates to a short arc high-pressure discharge lamp (1) for dc operation, comprising a discharge vessel (2) that has two necks (4) diametrically opposite each other, in which an anode (26) and a cathode (7) made of tungsten are melted in a gastight manner, and which has a filling made of at least one noble gas and possibly mercury. According to the invention, at least the material of the cathode tip (11) contains lanthanum oxide La2O3 and at least another oxide from the group consisting of hafnium oxide HfO2 and zirconium oxide ZrO2 in addition to the above-mentioned tungsten.
IPC 8 full level
H01J 61/06 (2006.01); H01J 61/073 (2006.01); H01J 61/86 (2006.01); H01J 61/88 (2006.01)
CPC (source: EP KR US)
H01J 61/073 (2013.01 - KR); H01J 61/0732 (2013.01 - EP US); H01J 61/0737 (2013.01 - EP US); H01J 61/86 (2013.01 - EP KR US)
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
WO 03075310 A1 20030912; CN 1639833 A 20050713; DE 10209426 A1 20030918; EP 1481418 A1 20041201; EP 1481418 B1 20111130; EP 1481418 B8 20120314; JP 2005519435 A 20050630; JP 4741190 B2 20110803; KR 100944818 B1 20100303; KR 20050004792 A 20050112; TW 200307307 A 20031201; TW I288943 B 20071021; US 2005104521 A1 20050519; US 7279839 B2 20071009
DOCDB simple family (application)
DE 0300707 W 20030305; CN 03805225 A 20030305; DE 10209426 A 20020305; EP 03720140 A 20030305; JP 2003573671 A 20030305; KR 20047013779 A 20030305; TW 92104423 A 20030303; US 50652804 A 20040903