Mercury-free halogen metal-vapor high-pressure discharge lamp for vehicle headlight, has discharge vessel provided partially with coating, so that capacitive coupling is produced between coating and electrode and/or power supply lines

摘要

The lamp has electrodes (11, 12) that extend into a discharge space of a transparent discharge vessel for producing a gas discharge. Power supplying lines (103, 13, 104, 14) are passed out of the vessel for supplying energy to the electrodes. The vessel is provided partially with an electrically conductive coating (107), so that a capacitive coupling is produced between the coating and the electrode (11) and/or supply lines (103, 13).