Metal halide lamp

H - Electricity – 01 – J

Patent

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Details

H01J 61/18 (2006.01) H01J 61/22 (2006.01)

Patent

CA 2257637

The invention relates to a metal halide lamp which radiates light with a color temperature Tc of between 3900 K and 4200 K and with a general color rendering index Ra 90. The ionizable metal halide filling comprises between 30 and 50 mole % CaI2. A lamp can be realized thereby having a limited crest factor, and accordingly a long useful life.

La présente invention concerne une lampe à halogène qui émet une lumière avec une température de couleur T¿c? située entre 3900 K et 4200 K et avec un indice général de rendu des couleurs R¿a? ? 90. Le remplissage halogène ionisable comprend entre 30 et 50 % mols de Cal¿2?. On peut réaliser, ainsi, une lampe présentant un facteur de crête limité, et conformément à une durée de vie utile, longue.

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