Title:
VEHICLE HEADLAMP
Document Type and Number:
WIPO Patent Application WO2005088673
Kind Code:
A3
Abstract:
Metal halide lamp suitable as projection lamp, for instance as a vehicle headlamp comprising a discharge vessel surrounded by an outer envelope with clearance and having a ceramic wall which encloses a discharge space filled with a filling comprising an inert gas, such as xenon (Xe), and an ionizable salt, wherein in said discharge space two electrodes are arranged whose tips have a mutual interspacing so as to define a discharge path between them, with the special feature that said ionizable salt comprises NaI, TlI, CaI2 and XI3 wherein X is selected from the group comprising rare earth metals.
Inventors:
HENDRICX JOSEPHUS C M (NL)
RAAS MARINUS C (NL)
RAAS MARINUS C (NL)
Application Number:
PCT/IB2005/050749
Publication Date:
August 17, 2006
Filing Date:
March 01, 2005
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
HENDRICX JOSEPHUS C M (NL)
RAAS MARINUS C (NL)
HENDRICX JOSEPHUS C M (NL)
RAAS MARINUS C (NL)
International Classes:
H01J61/12; H01J5/54; H01J61/00; H01J61/20; H01J61/34
Domestic Patent References:
| WO2001015205A1 | 2001-03-01 |
Foreign References:
| US20020185973A1 | 2002-12-12 | |||
| US20030141818A1 | 2003-07-31 | |||
| US4422011A | 1983-12-20 | |||
| GB1316803A | 1973-05-16 |
Download PDF: