常用照明光源光谱分析及其紫外防护方法

与白炽灯相比,LED灯和节能灯具有光效高、耗电少、寿命长等优点,从而被广泛推广使用,但其紫外辐射问题不容小觑。利用光栅光谱仪对市售多品牌、多规格的LED灯和节能灯光源进行光谱扫描,发现这两种照明光源均富含强紫外光谱。利用磁控溅射镀膜法,采用高纯氧化锌陶瓷靶,在石英基材上溅射镀膜,溅射工艺条件如下:室温、功率180 W、气压0.5 Pa、氧氩比0:8.3,时间2 h。将制备的氧化锌薄膜用做照明灯的紫外防护层,通过实验验证了其有效性和可行性。。

Spectral Analysis and UV Protection of Common Illumination Sources

Compared with incandescent lamps, LED lamps and energy-saving lamps, which are characterized with such advantages as high light efficiency, low power consumption and long-life duration, are widely used, but with the potential problem of ultraviolet radiation. With the grating spectrometer used to scan the spectrum of multi-brand and multi-specification LED lights and energy-saving illumination sources, it is found that both of them are rich in strong UV spectrum. By using magnetron sputtering coating method and high-purity ZnO ceramic target, the film is to be sputtered on the quartz substrates with the following sputtering conditions to be met: room temperature, with the power being 180 W, an air pressure of 0.5 Pa, an oxygen argon ratio of 0:8.3, a time duration of 2 hours. With the zinc oxide film applied to the UV protective layer of illumination lamp, its validity and feasibility can be verified by experiments.