Metal halide lamp

Details Metal halide lamp Metal halide lamp

1998-07-09

2000-10-24

Patel, Ashok

Electric lamp and discharge devices

With gas or vapor

With particular gas or vapor

313620, 313634, 313643, H01J 6130

Patent

active

061372307

ABSTRACT:
A discharge vessel with a ceramic wall encloses a discharge space in which besides a rare gas also an ionizable filling comprising at least NaI is present. Two electrodes having tips with a mutual distance EA are arranged in the discharge space which discharge vessel has an internal diameter Di over at least the electrode distance EA. The discharge space is Hg-free and the ionizable filling further comprises Zn and the electrode distance EA and the internal diameter Di comply with the relation 1.ltoreq.EA/Di.ltoreq.4.

REFERENCES:
patent: 5424609 (1995-06-01), Geven et al.
patent: 5627430 (1997-05-01), Kira et al.
patent: 5973453 (1999-10-01), Van Vliet et al.
patent: 5986402 (1999-11-01), Narita et al.

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