H - Electricity – 01 – J
Patent
H - Electricity
01
J
H01J 61/12 (2006.01) H01J 61/82 (2006.01)
Patent
CA 2124515
ABSTRACT The high pressure metal halide lamp has in a light transmitting discharge vessel (1) tungsten electrodes (3) and a filling comprising a rare gas, a buffer gas and at least one halide chosen from hafnium and zirconium bromide and chloride. The filling comprises furthermore a metal chosen from tin, tantalum and antimony in elementary form and is free from iodine in an amount exceeding 0.5 µmol I/cm3 discharge space (2). The lamp has considerably improved light generating properties.
Natour Ghaleb
Scholl Robert Peter
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Koninklijke Philips Electronics N.v.
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