Patent ID: 6995513
Filing Date: 2006-02-07
Classification: H01J

Abstract:
1. A discharge lamp comprising a ceramic discharge vessel enclosing a discharge space, said discharge vessel including within said discharge space an ionizable material comprising a metal halide, a first and second discharge electrode feedthrough means, and a first and second current conductor connected to said first and second discharge electrode feedthrough means, respectively; said lamp having a metal coil wound in a continuous series of loops around the discharge vessel and/or at least a portion of the electrode feed through means in a first position, the metal coil having coil portions, each coil portion composed of a single loop which extends entirely around the discharge vessel and/or the electrode feed through means, the metal coil also having at least one extended terminal portion which extends along a length of the coil portions, whereby the coil position of the at least one coil portion is stabilized to be substantially non-relaxed from the first position after exposure to elevated temperature conditions present during operation of the lamp, said metal coil functioning as both an ignition aid and for containment in said lamp.