Lighting device comprising a discharge lamp

摘要

Discharge lamp has a transparent electroconductive layer (4) extending over the entire lamp vessel (1) enclosing the discharge space (3). An Independent claim is also included for a lighting system including the above discharge lamp. Preferred Features: The transparent conductive layer (4) is provided over the lamp vessel exterior and comprises a 300 nm thick ITO layer of less than 100 OMEGA /square surface resistivity.