论文部分内容阅读
一、引言 金属卤化物放电灯具有显色性好、光效高,是当前照明光源的重要发展方向。众所周知,白炽灯显色性良好,可是效率很低;高压汞灯的光效较高,约30～60流明/瓦,寿命特别长,而显色性低劣;高压钠灯有着最高的光效,达100～120流明/瓦,显色性也很差,一般只能用于街道照明;目前使用的光源中,金属卤化物灯的特性最佳,显色指数好,光效高,约70～100流明/瓦,近乎比高压汞灯提高一倍。
I. Introduction Metal halide discharge lamp has good color rendering, high luminous efficiency, is the current development of an important source of light. As we all know, good incandescent color, but the efficiency is very low; high-pressure mercury lamp light efficiency is high, about 30 to 60 lumens / watt, particularly long life, and poor color; high pressure sodium has the highest light efficiency, up to 100 ~ 120 lm / W, color rendering is also poor, generally only for street lighting; currently used light source, the best characteristics of metal halide lamp, color index, light efficiency, about 70 ~ 100 Lumens / watt, almost double the high-pressure mercury lamp.