Highly Reliable and Low-Cost Fabrication of Warm-White LEDs Using Composite Silica Photonic Crystals

Table 1

Optical characteristics of all light sources.

At 0.37 W
Light source	Luminous flux (lm)	Luminous efficacy (lm/W)	CRI (Ra)	CCT (K)	CIE coordinate ()
WLEDs	53.2	144	82.3	3974	(0.3806, 0.3744)
WLEDs with -SCPhCs	46.7	127	80.1	2960	(0.4428, 0.4114)
-WLEDs	44.3	120	82.5	2842	(0.4464, 0.4038)