Global Patent Index - EP 0702394 B1

EP 0702394 B1 2000-01-05 - Metal halide high pressure discharge lamp

Title (en)

Metal halide high pressure discharge lamp

Title (de)

Metallhalogenid-Hochdruckentladungslampe

Title (fr)

Lampe à décharge haute pression à halogénure métallique

Publication

EP 0702394 B1 (DE)

Application

EP 95112860 A

Priority

DE 4432611 A

Abstract (en)

[origin: EP0702394A2] The lamp has a discharge envelope with 2 opposing electrodes and an ionisable filling comprising at least one inert gas, Hg, at least one halogen and the elements Tl, Cs and Hf, for forming halogenides. The Hf can be fully or partially replaced by Zr, or by one or both of the rare earth metals Dy and Gd. Pref. the molecular ratio between the filling component of Hf or Zr and the sum of the rare earth metal filling components is at least 0.35 and pref. between 0.5 and 1.5.

IPC 1-7

H01J 61/12; H01J 61/14; H01J 61/34; H01J 61/82

IPC 8 full level

H01J 61/12 (2006.01); H01J 61/14 (2006.01); H01J 61/20 (2006.01); H01J 61/24 (2006.01); H01J 61/26 (2006.01); H01J 61/34 (2006.01); H01J 61/82 (2006.01); H01J 61/86 (2006.01)

CPC

H01J 61/26 (2013.01); H01J 61/12 (2013.01); H01J 61/125 (2013.01); H01J 61/14 (2013.01); H01J 61/34 (2013.01); H01J 61/827 (2013.01); H01J 61/86 (2013.01)

Designated contracting state (EPC)

BE DE FR GB IT NL

DOCDB simple family

EP 0702394 A2 19960320; EP 0702394 A3 19980429; EP 0702394 B1 20000105; CA 2156472 A1 19960315; DE 4432611 A1 19960321; JP H0896748 A 19960412