Two-Part Gauss Simulation of Phosphor-Coated LED

H. Jin, S. Jin, K. Yuan, S. Cen
2013 IEEE Photonics Journal  
Gauss simulation is an effective tool for designing light-emitting-diode (LED) light sources. This paper proposes a new two-part Gauss simulation model to simulate a YAG:Ce phosphor-coated LED (PC-LED). This model divides the emission spectra of YAG:Ce phosphor into two parts, and they use different half spectral widths in the Gauss function to accurately simulate the spectra of YAG:Ce PC-LED. The simulated spectra are similar to the measured spectra of packaged LEDs; most correlated color
more » ... rature (CCT) error is less than 4%, color rendering index (CRI) error is less than 2, and luminous efficacy of radiation (LER) error is less than 3% for simulation results. This is a vast improvement on an ordinary single Gauss simulation model. Using the model to analyze the combination of common blue LED and YAG:Ce phosphor helps the design of new white LEDs. Index Terms: Light emitting diodes, theory and design, optical and other properties, luminescence and fluorescence.
doi:10.1109/jphot.2013.2272783 fatcat:hclxkr7z2vdrbiyktdhs6ubh7m