A discharge lamp, having a base part, a discharge vessel connected with the base part, at least two electrodes arranged in said discharge vessel, the discharge vessel prior to connection with the base part being movable relative to the base part for adjustment, a receiving element fixable on the discharge vessel, an intermediate member formed so that discharge vessel is connectable with intermediate member through receiving element, discharge vessel being movable through receiving element relative to intermediate member for an adjustment, and after a performed adjustment is fixable on intermediate member, intermediate member being movable for an adjustment of discharge vessel relative to the base part and fixable after a performed adjustment on the base part.
An auxiliary antenna arranged around the discharge vessel of a gas discharge lamp comprising an outer bulb enclosing this discharge vessel is provided on the outer bulb. The advantages of an auxiliary start antenna can thus be enjoyed without being counterbalanced by an increased sodium diffusion.
The invention relates to a lighting system with a high-pressure discharge lamp and a control unit (W, FS, C1, W) for the high-pressure discharge lamp (1), where the lamp base (10) has at least two housing parts (10a, 10b) which are connected to one another by a releasable closure (22). The first housing part (10a) has fastening means (24) for the at least one lamp vessel (11). The high-voltage part (TR) of the ignition device (TR, FS, C1) is accommodated in the first housing part (10a), whilst the second housing part (10b) is provided with the electrical connections (20) for the high-pressure discharge lamp (1) and preferably contains the remaining components (FS, C1) of the ignition device and the voltage converter (W) of the control unit.
Broadband output high power pulsed flash lamps are useful in many applications, and when specifically optimized, can become an excellent source of ultraviolet (UV) light, which is particularly useful for photo-chemically-induced materials processing applications. Multiple factors involved with the production of high-energy light pulses can in certain cases adversely affect the ultraviolet lamp operation, thereby resulting in the development of micro cracks in lamp envelopes and subsequent limitation in lamp lifetime. Similar factors can be responsible for an increased absorption of UV radiation by lamp components and degradation of lamp efficiency. This invention describes new pulsed flash lamp designs that enable a new generation of high power and performance as required by, for example, many large-scale photo-processing applications. This invention uniquely and advantageously mitigates the development of micro-cracks and failure, and produces dramatically improved electrical efficiency, stability of lamp optical characteristics, and service lifetime.
A discharge lamp (1) with a base (2), suitable for operation by means of a dielectrically impeded discharge, has a spacing between the base (2) and the outer wall of the discharge vessel (3). The overall efficiency of the generation of UV radiation is improved thereby.
