EP 0592915 B1 19951227 - Low-pressure discharge lamp and process for producing a low-pressure discharge lamp
Title (en)
Low-pressure discharge lamp and process for producing a low-pressure discharge lamp
Title (de)
Niederdruckentladungslampe und Herstellungsverfahren für eine Niederdruckentladungslampe
Title (fr)
Lampe à décharge à basse pression et procédé de production d'un lampe à décharge à basse pression
Publication
Application
Priority
DE 4234843 A 19921015
Abstract (en)
[origin: EP0592915A1] The invention relates to a low-pressure discharge lamp and a process for producing such a lamp. The electrode filaments of the low-pressure discharge lamps according to the invention are preferably activated by means of an emitter paste consisting of barium carbonate which contains no further additives. This improves the cold-start resistance of the low-pressure discharge lamps.
IPC 1-7
IPC 8 full level
H01J 9/04 (2006.01); H01J 61/06 (2006.01); H01J 61/067 (2006.01)
CPC (source: EP KR US)
H01J 9/042 (2013.01 - EP US); H01J 61/00 (2013.01 - KR); H01J 61/0677 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0592915 A1 19940420; EP 0592915 B1 19951227; CA 2107942 A1 19940416; DE 4234843 A1 19940421; DE 59301249 D1 19960208; JP H06203793 A 19940722; KR 100275168 B1 20010115; KR 940010169 A 19940524; US 5614784 A 19970325
DOCDB simple family (application)
EP 93116008 A 19931004; CA 2107942 A 19931007; DE 4234843 A 19921015; DE 59301249 T 19931004; JP 25692393 A 19931014; KR 930021376 A 19931015; US 49086395 A 19950615