Vibration resistant electric incandescent lamp and method for reducing vibration

Abstract

An electric incandescent lamp comprising at least one incandescent filament is provided. The incandescent filament is arranged inside a translucent envelope. The lamp also comprises support wires that protrude out of a stem. The filament has end portions, and each end portion is fixed to a corresponding support wire at a junction point. At least one of the support wires comprises at least one narrowed portion for reducing vibration. The narrowed portions are disposed between the junction point and the stem. In an exemplary embodiment of another aspect of this invention, at least one of the support wires has a second section overhanging beyond the junction point of the end portion of the filament. The at least one narrowed portion for reducing vibration is comprised by the second section. A method for reducing vibration is also disclosed. This method comprises a step of forming at least one narrowed portion in at least one of the support wires.

Dependencies are inferred from the claim text.