Yuan-zhe ZHANG, Yu-hao LIU, Yu-jie LU, Chao-qun MA, Guo-qing CHEN, Hui WU. Study on the Spectral Prediction of Phosphor-Coated White LED Based on Partial Least Squares Regression[J]. Spectroscopy and Spectral Analysis, 2022, 42(8): 2347
- Spectroscopy and Spectral Analysis
- Vol. 42, Issue 8, 2347 (2022)
Fig. 1. Spectral test results of phosphors and blue chip
Fig. 2. (a) White light spectra under different mass ratios (15% red phosphor); (b) Double Gaussian peak fitting of green fluorescence emission spectrum
Fig. 3. Measured and predicted spectra of white light under different mass ratios between two phosphors and their concentrations
Fig. 4. (a) w 2/w 1 under different concentrations of red phosphor; (b) Linear fitting between w 2/w 1 and the mass ratios between two phosphors
Fig. 5. Test results of parameters fitting
Fig. 6. Predicted spectrum by model and measured spectrum
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Table 1. The value of the two line width terms and their ratio under different mass ratios of two phosphors
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