EP 1037257 A3 20010207 - Mercury-free metal halide-lamp
Title (en)
Mercury-free metal halide-lamp
Title (de)
Quecksilberfreie Metallhalogenidlampe
Title (fr)
LAMPE D'HALOGENURE METALLIQUE SANS MERCURE
Publication
Application
Priority
- JP 6473299 A 19990311
- JP 21683099 A 19990730
Abstract (en)
[origin: EP1037257A2] A lamp voltage corresponding to a lamp comprising mercury is obtained by comprising at least a rare gas, a trivalent of indium halide and a thallium iodide in an arc tube 1, and thereby a long life can be accomplished. In addition, when an enclosed amount of the trivalent of indium halide is approximately 90.0mg/cc or less per unit internal volume of the arc tube and the rare gas is xenon gas with an enclosed pressure of 2.5MPa or less, the luminous flux and the light colour most appropriate for a light source for motor vehicle headlights are obtained. Furthermore, when the thallium iodide is enclosed, the lamp voltage can be made even higher and the luminous flux can be increased. <IMAGE>
IPC 1-7
IPC 8 full level
H01J 61/12 (2006.01); H01J 61/18 (2006.01); H01J 61/82 (2006.01)
CPC (source: EP KR)
H01J 61/12 (2013.01 - EP); H01J 61/18 (2013.01 - KR); H01J 61/827 (2013.01 - EP); H01J 61/34 (2013.01 - EP)
Citation (search report)
- [E] EP 1037258 A1 20000920 - MATSUSHITA ELECTRIC IND CO LTD [JP]
- [E] EP 1032010 A1 20000830 - MATSUSHITA ELECTRIC IND CO LTD [JP]
- [E] EP 1011126 A2 20000621 - PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH [DE]
- [X] US 5834895 A 19981110 - DOLAN JAMES T [US], et al
- [X] US 3259777 A 19660705 - FRIDRICH ELMER G
- [A] US 3989970 A 19761102 - DOWNING ROBERT D
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)
EP 1037257 A2 20000920; EP 1037257 A3 20010207; CN 1284736 A 20010221; KR 20010006751 A 20010126; TW 446988 B 20010721
DOCDB simple family (application)
EP 00302009 A 20000313; CN 00108328 A 20000310; KR 20000011465 A 20000308; TW 89104277 A 20000309