冷端温度对无极灯253.7nm共振谱线的影响  

Influence of Cold Spot Temperature on 253.7 nm Resonance Spectra Line of Electrodeless Discharge Lamps

作　　者：董晋阳[1,2] 张贵新[1] 王长全[1] 

机构地区：[1]清华大学电机工程与应用电子技术系,北京100084 [2]北京市电力公司,北京100031

出　　处：《光谱学与光谱分析》2012年第1期50-52,共3页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(50477005)资助

摘　　要：无极灯是一种长寿命、低汞害、无频闪的新型电光源,其光效在很大程度上取决于253.7nm共振谱线的辐射效率。通过原子发射光谱分析,实验研究了冷端温度对253.7nm共振谱线的影响规律。研究发现,253.7nm共振谱线的辐射效率随冷端温度变化近似呈正态分布,即无极灯工作存在一个最佳冷端温度。运用气体放电理论对实验结果进行了定性分析,对无极灯光效的提高具有指导意义。As a kind of new electric light source,electrod eless discharge lamps are of long life,low mercury and non-stroboscopic light. The lighting effect of electrodeless discharge lamps depends on the radiation ef ficiency of 253.7 nm resonance spectra line to a large extent.The influence of c old temperature on 253.7 nm resonance spectra line has been studied experimenta ll y by atomic emission spectral analysis.It was found that the radiation efficien cy of 253.7 nm resonance spectra line is distributed in a nearly normal fashion w ith the variation of cold spot temperature,in other words,there is an optimum cold spot temperature for an electrodeless discharge lamp.At last,the results of experiments were analyzed through gas discharge theory,which offers guidance to the improvement of lighting effect for electrodeless discharge lamps.

关 键 词：无极灯 冷端温度 共振谱线 气体放电 光效 

分 类 号：O433.1[机械工程—光学工程]