Patent ID: 9053921
Filing Date: 2015-06-09
Classification: H01J

Abstract:
1. A high-pressure discharge lamp having an ignition aid, comprising a discharge vessel which is fitted in an outer bulb, wherein a UV enhancer is fitted as an ignition aid in the outer bulb, wherein the UV enhancer comprises a UV-transparent can-like container having an inner wall and end side and longitudinal axis, the container enclosing with its inner wall a cavity which is filled with a gas that can emit UV radiation, an inner vent electrode, which has at least one bend or kink, being fitted in the cavity in such a way that a bend or kink lie as close as possible to the inner wall of the container, and wherein an external electrode is applied externally in the vicinity of the container, wherein the inner electrode is a foil-like electrode having a spring effect or a spirally wound wire, wherein the foil-like electrode extends essentially parallel to the longitudinal axis in the cavity while having at least one lateral bend or kink towards the inner wall facing transversely with respect to the longitudinal axis, wherein the length of the foil-like electrode exceeds the length of the cavity, a free end of the electrode being either bent back against the longitudinal axis or fixed in a front surface of the container.