Halogen incandescent lamp

H - Electricity – 01 – K

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H01K 1/04 (2006.01) H01K 1/16 (2006.01) H01K 1/20 (2006.01) H01K 1/50 (2006.01)

Patent

CA 1161096

PHN 9782 9 ABSTRACT: In halogen incandescent lamps having a filament substantially of tungsten and a filling comprising bromine and an inert gas, a specific attack of internal current conductors consisting substantially of tungsten occurs within the temperature range from 600 to 1300°C, which results in the formation of pits or craters in these inter- nal current conductors. In order to obviate such attack of internal current conductors, the internal current con- ductors consist at least at their surface of a tungsten containing at least 0.1 % by weight of rhenium.

380585

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