Patent ID: 6753650
Filing Date: 2004-06-22
Classification: H01J,H01K

Abstract:
A method for producing an electric lamp, the method which comprises:providing an unfinished foil produced by a sintering process and a forming process, the unfinished foil being formed of a material selected from the group consisting of molybdenum and a doped molybdenum alloy, and the unfinished foil having a given surface structure and a given material composition; post-treating the unfinished foil for producing a finished foil having substantially non-contiguous, insular regions of material agglomerates with at least one of a surface structure different from the given surface structure of the unfinished foil and a material composition different from the given material composition of the unfinished foil; providing the substantially non-contiguous, insular regions of material agglomerates in 5 to 60% of a surface area of the finished foil; forming the material agglomerates from at least one material selected from the group consisting of molybdenum, a molybdenum alloy, titanium, silicon, an oxide, a mixed oxide, and an oxidic compound with a vapor pressure of in each case less than 10 mbar at 2000Â° C.; and sealing the finished foil in a lamp bulb formed of a material selected from the group consisting of SiO2 and an SiO2-containing glass for providing a current lead.