可变色霓虹灯机理探讨

Mechanism investigatlon for variable luminous colour neon camps

本文主要探讨了装饰霓虹灯通过变化放电正柱区的电子温度来控制灯管色彩变化的原理。同时剖析和实验证实了：对一支充有Ｈｇ和１０ＴｏｒｒＮｅ的气体放电灯管、通过改变供电的脉冲电压（４００Ｖ～１０００Ｖ），重复频率（５０Ｈｚ～１０００Ｈｚ）和持续时间（５μＳ～１５０μＳ），可以使灯管辐射从红色（０．５４５，０．２６２）变化为兰色（０．７０５，０．２９５），亮度从１４ｄｃｄ／ｍ￣２增加到１６４０ｃｄ／ｍ￣２的物理现象。文中最后提出了将变色放电技术应用于生产新颖霓虹灯产品的展望。

The principle of controleing the different colour for the decorative neon lamps by means of changing electron temperature of discharge positive column is discussed in the paper.It is analysed and proved by the experiments that through the changing of pulsed voltage(400V-1000V),repeating frequency(50Hz-1000Hz)and cycle period,(5μs-150μs)the discharge tube with Hg and 10torr Ne is able to emit the light of different colour from red (0.545, 0.262) to blue(0. 705, 0.'295)and to enhance the luminance from 140cd/m￣2 to 1640cd/m￣2. At the end of the paper developing products for new type of-variable luminous colour neon lamps are looked forward to the future.