Feng RAO, Tao FANG, Zi-ling WANG, Chen CHEN. Determining the Junction Temperature of Two Phosphors-converted LED Based on Spectral Feature Parameters of the Chip[J]. Acta Photonica Sinica, 2020, 49(9): 0912002
- Acta Photonica Sinica
- Vol. 49, Issue 9, 0912002 (2020)
Fig. 1. Comparation of LED sample and the coin
Fig. 2. The schematic diagram of optic, chromatic and electric comprehensive analyzer
Fig. 3. Normalized spectral distributions of phosphor-converted white LED
Fig. 4. Normalized spectral distribution
Fig. 5. Measured and fitted values
Fig. 6. Calibration curve
Fig. 7. Comparison of junction temperatures with different methods
Fig. 8. Normalized spectral distribution after aging
Fig. 9. Spectral feature parameter at different time
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