Practical issues for two-light-sources model of phosphor-based white light-emitting diode.

The article presents a study which discusses the solid-state light sources model of phosphor-based light-emitting diode (LED). The study uses the ray tracing procedure along with the suitable LED emission apodization pattern checked through the signal-to-noise ratio examination on the illuminating plane and color coordinates determined by energy ratios. The study revealed that the illumination and color patterns can be restored, however, several factor influence the color distribution of LED.