公开(公告)号：US20020047526A1

公开(公告)日：2002-04-25

申请号：US09978448

申请日：2001-10-16

Applicant: Harison Toshiba Lighting Corp.

Inventor： Toshihiko Ishigami ,  Kiyoshi Saita ,  Mikio Matsuda ,  Toshio Hiruta

IPC: H01J017/20

CPC classification number: H05B41/2887 ,  H01J61/125 ,  H01J61/827 ,  Y02B20/202

Abstract: Disclosed is a metal halide discharge lamp which essentially permits disusing mercury. The metal halide discharge lamp comprises a refractory and transparent hermetic vessel, a pair of electrodes fixed to the hermetic vessel, and a discharge medium sealed in the hermetic vessel and containing a first halide, a second halide and a rare gas, the first halide being a halide of a metal which achieves a desired light emission, the second halide having a relatively high vapor pressure, being at least one halide of a metal which is unlikely to emit a visible light compared with the metal of the first halide, and acting as a buffer gas.

Abstract translation: 公开了一种金属卤化物放电灯，其基本上允许废除汞。 金属卤化物放电灯包括耐火透明密封容器，固定在密封容器上的一对电极和密封在密封容器中并包含第一卤化物，第二卤化物和稀有气体的放电介质，第一卤化物为 与第一卤化物的金属相比，不可能发出可见光的至少一种金属的卤化物，并且作为 缓冲气体。