Huijuan Tian, Xinhua Zhang, Jin Zhang. Temperature Spectrum Optimization of Mixed White LED Cluster Comprising Red/Green/Blue/Warm White LED[J]. Acta Optica Sinica, 2023, 43(9): 0930001
- Acta Optica Sinica
- Vol. 43, Issue 9, 0930001 (2023)
Fig. 1. Schematic diagram of light source and experimental setup. (a) Light source; (b) experimental setup
Fig. 2. Spectral power distribution of R/G/B/WW LED light source at different temperatures
Fig. 3. Color rendering index of mixed white light at different correlated color temperatures. (a) 3000 K; (b) 5000 K; (c) 6500 K
Fig. 4. Comparison between measured and model calculated results under different correlated color temperatures. (a) 3000 K; (b) 5000 K; (c) 6500 K
Fig. 5. Measured parameter of light source under correlated color temperatures of 3000 K, 5000 K and 6500 K. (a) TC and EV; (b) CAF and
Fig. 6. Comparison between measured and compensation model spectra under different correlated color temperatures. (a) 3000 K; (b) 5000 K; (c) 6500 K
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Table 1. Fitting coefficients of three models of R/G/B/WW four-color LED light source
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Table 2. Comparison errors between experimental and model light source parameter values under correlated color temperatures of 3000 K, 5000 K and 6500 K
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Table 3. Relative errors between measured values and set values at different correlated color temperatures and temperatures after compensation
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