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