EMITTER FREE TUNGSTEN ELECTRODES IN HIGH PRESSURE DISCHARGE LAMPS

摘要

Despite of some progress in investigating electrodes in High Intensity Discharge lamps (HID), there are a lot of unanswered questions, e.g. the influence of sodium on the electrode mechanism in High Pressure Sodium lamps (HPS) and the performance of thoria-free electrodes in Metal Halide lamps (MH). Our investigations are based on an apparatus for measuring the electrode temperature profile described in authors second paper submitted to this conference.