High-pressure discharge lamp for motor vehicle headlamps

Details High-pressure discharge lamp for motor vehicle headlamps High-pressure discharge lamp for motor vehicle headlamps

2006-05-16

2006-05-16

Patel, Ashok (Department: 2879)

Electric lamp and discharge devices

With gas or vapor

Having a particular total or partial pressure

C313S568000, C313S634000, C313S638000, C313S620000

Reexamination Certificate

active

07045960

ABSTRACT:
A high-pressure discharge lamp for motor vehicle headlamps having a mercury-free ionizable fill which consists of xenon with a cold filling pressure of at least 2000 hPa and metal halides. The discharge vessel has a tubular section (10) which consists of a transparent ceramic and has an internal diameter which is less than or equal to 2 mm and inside which there are arranged electrodes with a spacing less than or equal to 10 mm.

REFERENCES:
patent: 4717852 (1988-01-01), Dobrusskin et al.
patent: 5973453 (1999-10-01), Van Vliet
patent: 6126889 (2000-10-01), Scott et al.
patent: 6137230 (2000-10-01), Born
patent: 6404129 (2002-06-01), Hendricx et al.
patent: 6495962 (2002-12-01), Uemura
patent: 6853140 (2005-02-01), Lapatovich

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