| 光谱学与光谱分析 |
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| Influence of Cold Spot Temperature on 253.7 nm Resonance Spectra Line of Electrodeless Discharge Lamps |
| DONG Jin-yang1,2, ZHANG Gui-xin1*, WANG Chang-quan1 |
1. Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
2. Beijing Electric Power Company, Beijing 100031, China |
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Abstract As a kind of new electric light source, electrodeless discharge lamps are of long life, low mercury and non-stroboscopic light. The lighting effect of electrodeless discharge lamps depends on the radiation efficiency of 253.7 nm resonance spectra line to a large extent. The influence of cold temperature on 253.7 nm resonance spectra line has been studied experimentally by atomic emission spectral analysis. It was found that the radiation efficiency of 253.7 nm resonance spectra line is distributed in a nearly normal fashion with 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.
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Received: 2010-12-10
Accepted: 2011-04-25
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Corresponding Authors:
ZHANG Gui-xin
E-mail: guixin@mail.tsinghua.edu.cn
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