APPARATUS FOR INTRODUCING A SUBSTANCE INTO A DISCHARGE TUBE OR ELECTRIC LAMP

摘要

A method of manufacturing an electric discharge tube or an electric lamp starting from a vessel wherein a closed holder is placed which is provided with a quantity of one or more substances to be introduced into the vessel. Subsequently, a desired gas atmosphere is brought about in the vessel and the vessel is closed. Finally the holder is opened by means of current passage through a heating element present in the vessel. The heating element is connected to the ends of an electric conductor placed in the vessel, for example, a coil, between which ends an electric voltage difference is profuced by means of induction with the aid of a current-conveying primary coil placed outside the vessel.