摘要
文中设计了LED光源谱线宽度测试实验。利用WGD-6型光学多道分析仪和TS-100A光纤光谱仪两套实验装置对红、黄、绿、蓝、紫等5种不同颜色LED光源的波长、相干长度和谱线宽度作了对比性测量。实验结果表明,LED光谱功率分布近于高斯分布,是很好的窄带光谱;5种单色LED光谱的半强度宽度均≤36.47 nm,光谱纯度较好,其中绿光LED的半强度宽度最大,紫光LED的半强度宽度最小,表明紫光的单色性最好。两种测试方法的结果是相吻合的,与厂家标称值基本一致。
Based on a WGD- 6 optical multichannel analyzer and a TS- 100 A fiber spectrometer,two kinds of experiment systems were designed to test the optical properties of 5 kinds of different colors LED（ such as red,yellow,green,blue and violet）,including the wavelength,the coherent length and the spectral linewidth of LED light source. The results show that the measured LED spectral power distribution approximates to Gaussian distribution and it is a typical narrow spectrum. The half- intensity width of 5 kinds LED is all less than or equal to 36. 47 nm,so the LED＇s spectral purity is good. The half- intensity width of green light LED is the largest and the violet light LED＇s is minimum,so the mono = chromaticity of violet light is the best. The measurement results of the two methods show that they are in agreement and the test data is nominal with manufacturer.
出处
《实验科学与技术》
2015年第6期38-40,105,共4页
Experiment Science and Technology
基金
浙江农林大学实验室管理与改革项目(SYB1212)
浙江省教育厅科研项目(Y201225628)
