Electrode for discharge lamp, has discharge receptacle in which electrode formed of oxide receptacle zone, is partially extended

摘要

Electrode (4,6) has discharge receptacle (2) in which the electrode is partially extended. The electrode is formed of oxide receptacle zone. The electrode is made of doped electrode material and the oxide depletion zone is made of small doped electrode material. Independent claims are included for the following: (1) discharge lamp (2) illumination device.