H - Electricity – 01 – K
Patent
H - Electricity
01
K
313/118
H01K 1/50 (2006.01) H01K 1/38 (2006.01) H01K 1/40 (2006.01)
Patent
CA 1063155
ABSTRACT: Halogen incandescent lamps having at least two filaments are provided with a hard-glass lamp vessel in the vacuum-tight seal of which molybdenum wire current leadthrough conductors are incorporated which form one assembly with internal and external current conductors. The part of the current leadthrough conductors which extends in the seal of the lamp vessel is according to the invention surrounded by a glass bead. In spite of large differences between the coefficients of expansion of the glass and the molybdenum, the lacking of rotation- ally symmetric geometry at the area of the current lead- throughs and the high thermal load of the lamp vessel seal, the lamps have proved to be very reliable.
265937
Van Den Broek Cornelis P.
Van Lieshout Johannes M.j.
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