无极灯的温度特性研究

无极灯是一种高光效长寿命的节能光源,是未来光源发展的一个重要方向。其光效的高低直接取定于灯内汞的蒸气压,汞的蒸气压取决于汞齐的冷端温度,而汞齐冷端温度又由灯内气体温度和灯的散热状况决定,因此研究无极灯内气体温度特性对分析光效的高低极其重要。以有荧光粉和无荧光粉的150W无极灯为例,对此进行了初步研究,结果表明,无极灯启动时的温度特性与有、无荧光粉有关,关灯后的温度特性与灯的散热结构有关。

Research on the Temperature Characteristics of Electrodeless Discharge Lamp

Electrodeless lamp is a kind of high-efficacy and long-life light source,so it should be a significant choice in the future.The luminous efficiency directly depends on the mercury air pressure.And the mercury air pressure is ruled by the cold end temperature of the amalgam.While the cold end temperature depends on the gas temperature in the bulb and the state of heat dissipation.So researching the characteristics of gas temperature in bulb is very important for analyzing the luminous efficiency.In this paper,the temperature characteristics are primarily investigated by analyzing 150W electrodeless lamps with phosphor and without phosphor.The results show that the temperature characteristics are related to the phosphor at start-up,and the temperature characteristics after the lamp turning out is related to the structure of heat dissipation.