高压钠灯用新型储备式电极的研究

Investigation on New Dispenser Electrodes for HPS Lamp

本文首先回顾了HID光源用电极的研究进展,指出稀土氧化物电极是现阶段钨热电子发射电极的开发重点和其研发方向。其次介绍了一种新型的高压钠灯用储备式电极。与传统的高压钠灯电极相比,该新型储备式电极具有多方面的优势,例如低逸出功、高流明维持率、高热电子发射能力、高光效、高光通量和长寿命等。

The development history and research advances of electrodes for HID lamps are retrospect firstly. Moreover, the most interest field of tungsten electrodes is rare earth oxide tungsten electrode and the further researching directions of which are pointed out. A new kind of dispenser electrodes for high pressure sodium lamp has been developed. Compared with the conventional electrodes for HPS, this new dispenser electrode has many superior characteristics, such as low escape work function, high lumen maintenance, high thermionic electron emitting ability, high lumen efficiency, good output maintenance and long lifetime.