INCANDESCENT ELECTRIC LAMP

摘要

PURPOSE: An incandescent electric lamp is provided to make an incandescent object have exactly a predetermined position to a glass plate and to miniaturize the structure of the lamp. CONSTITUTION: An incandescent electric lamp comprises: a metal tube(3) extending through a mold glass plate(1) connected to a conductor(2) in a gas sealing method; an incandescent object(4) occupying a predetermined position to the mold plate(1) and connected to the conductor(2); and a glass bulb(5) being at circumference of the incandescent object(4) and connected to the mold plate(1) by enamel(6) in a gas sealing method, wherein the lamp has an injection gas having pressure over 1bar in the bulb(5), and the metal tube(3) has a gas sealing part(30) outside of the bulb(5), wherein the glass plate(1) is an object having composition corresponding to that of a glass of the bulb(5).