LAMP WITH AN IMPROVED LAMP BEHAVIOUR

摘要

The invention relates to a Hg free high pressure discharge lamp having a quartz envelope and a halide filling, wherein the lamp comprises at least one electrode which comprises tungsten and =0 wt.% and =0,5 wt.-% thorium and whereby the lamp comprises at least one Mo-containing lead-in wire and/or foil whereby the Mo­ containing wire and/or foil comprises TiO₂ and having a characteristic life time of =2500 h and =7500 h according to the EU Carmaker cycle test.