EP 0903770 B1 20040818 - Metal halide lamp
Title (en)
Metal halide lamp
Title (de)
Metallhalogenidlampe
Title (fr)
Lampe à halogenures
Publication
Application
Priority
DE 19731168 A 19970721
Abstract (en)
[origin: US6069456A] Lighting system, comprising a mercury-free metal halide lamp with a light yield of at least 75 lm/W and a color rendition index of at least 75 and an electronic ballast, the electronic ballast impressing a square-wave power supply on the lamp and keeping the power constant. The filling comprises the following components: a buffer gas which also acts as starting gas to start the lamp, a voltage gradient generator, comprising at least one metal halide which vaporizes readily and which is chiefly (by more than 50%) responsible for generating a voltage gradient which corresponds approximately to that of mercury, and a light generator comprising one metal and/or one metal halide.
IPC 1-7
IPC 8 full level
H01J 61/12 (2006.01); H01J 61/18 (2006.01); H01J 61/36 (2006.01); H01J 61/82 (2006.01); H01J 61/88 (2006.01)
CPC (source: EP US)
H01J 61/18 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL
DOCDB simple family (publication)
US 6069456 A 20000530; AT E274236 T1 20040915; CA 2243737 A1 19990121; CA 2243737 C 20061128; DE 19731168 A1 19990128; DE 59811826 D1 20040923; EP 0903770 A2 19990324; EP 0903770 A3 19990407; EP 0903770 B1 20040818; HU 221394 B1 20020928; HU 9801641 D0 19980928; HU P9801641 A2 19990428; HU P9801641 A3 20010228; JP 4335332 B2 20090930; JP H1186795 A 19990330
DOCDB simple family (application)
US 11849198 A 19980717; AT 98111187 T 19980618; CA 2243737 A 19980720; DE 19731168 A 19970721; DE 59811826 T 19980618; EP 98111187 A 19980618; HU P9801641 A 19980720; JP 20567698 A 19980721