Abstract:
Mercury free gas discharge lighting elements that are used particularly in road vehicle headlights have inner and outer tubes. These are structured such that the arc diffusion has a curvature of between 0.01 to 1.5 mm that of those without the structure. Typically the mercury free unit is a mercury free Xenon gas discharge device. The tubes are glass or ceramic.
Abstract:
The invention describes a light burner (1) comprising a discharge chamber (2) containing a gas sealed in the discharge chamber (2) by a seal (4, 5) and a pair of electrode shafts (6, 7), each of which partially intrudes from the seal (4, 5) into the discharge chamber (2) whereby a wrapping (8, 9), at least partially contained in the seal (4, 5), is freely wound around at least one of the electrode shafts (6, 7) and constrained in its motion by a number of containment elements (P 1 , P 2 , P 3 , P 4 ) positioned along the longitudinal axis of the electrode shaft (6, 7).
Abstract:
The invention relates to a mercury-free gas discharge lamp suitable in particular for motor vehicles and having an enhanced discharge arc diffuseness, to its use, and to a method of its manufacture. The mercury-free gas discharge lamp according to the invention has an inner vessel and/or outer bulb with a structured arrangement, which structured arrangement is preferably made such that the discharge arc diffuseness of the mercury-free gas discharge lamp with structured arrangement is increased by dD 0.01 mm to 1.5 mm in comparison with the corresponding gas discharge lamp without structured arrangement.