Optimization of LED Lighting for Clinical Settings

Table 3

Optimised mixtures for low and high CCTs.

CCT (K)	CIE CRI results			LER (lm/w)	IES TM-30-15 results					Surface colour giving Rfmin	OI
	Ra	R9	R13		Rf	Rg	Rfskin	Rfmin	imin
Low
2759	95	87	98	332	89	100	94	71	25	Yellowish-brown (A)	600
3051	94	74	100	340	90	101	94	75	42	Olive-green (F)	595
High
5734	90	95	98	309	86	107	97	57	75	Dark blue (F)	585
6563	89	95	100	305	86	106	97	53	75	Dark blue (F)	581
7539	86	71	90	285	83	110	96	50	75	Dark blue (F)	533

Colour descriptions are our own interpretations of the TM-30-15 test colours; type A are from nature; type F are print colours.