Optimization of Multiband White-Light Illuminants for Specified Color Temperatures

Table 2

Results: 4-LED optimization.

(a) Illuminant A: , , LER = 313 lm/rad-W,

Sample number
1	0.58	0.55	−0.62	0.23	95
2	0.18	0.43	0.03	0.04	95
3	0.65	0.01	−0.10	−0.76	96
4	0.87	2.00	0.14	0.04	87
5	0.47	0.89	0.16	0.05	90
6	0.84	0.59	0.97	0.38	85
7	0.40	−0.15	0.46	−0.06	94
8	0.17	−0.34	−0.04	−0.08	99
9	0.41	−0.55	−0.70	−0.08	99
10	0.48	−0.02	0.67	−0.37	86
11	2.45	5.61	2.01	0.58	68
12	1.68	4.44	−3.95	0.70	81
13	0.31	0.54	0.20	0.17	91
14	0.70	−0.73	−0.47	−0.56	97
Avg	0.73	—	—	—	90

(b) Illuminant D₅₀: , LER = 311 lm/rad-W,

Sample number
1	0.56	0.75	−0.53	0.17	94
2	0.18	0.26	0.14	0.08	97
3	0.61	0.55	−0.75	−0.42	95
4	0.56	1.10	−0.60	0.10	93
5	0.50	0.61	−0.55	0.04	95
6	0.46	0.58	0.28	0.24	95
7	0.47	−0.79	0.44	−0.12	95
8	0.38	−0.77	−0.20	−0.16	96
9	0.44	−0.52	−0.7	−0.22	96
10	0.13	−0.23	0.14	−0.12	97
11	1.67	4.53	0.90	0.57	79
12	3.93	7.01	−8.78	0.17	70
13	0.70	0.55	0.73	0.12	92
14	0.70	−0.18	−0.87	−0.30	95
Avg	0.81	—	—	—	92

(c) Illuminant D₆₅: , LER = 298 lm/rad-W,

Sample number
1	0.58	0.80	−0.52	0.10	94
2	0.26	0.06	0.30	0.05	97
3	0.59	0.62	−0.83	−0.34	95
4	0.52	0.28	−0.87	0.12	95
5	0.71	0.36	−0.93	0.07	95
6	0.40	0.57	0.12	0.25	95
7	0.66	−1.36	0.49	−0.10	93
8	0.57	−1.20	−0.29	−0.18	94
9	0.49	−0.40	−0.73	−0.32	95
10	0.17	−0.56	0.13	−0.11	98
11	1.38	3.80	0.59	0.56	85
12	5.06	9.55	−10.2	0.22	63
13	1.02	0.43	1.08	0.05	92
14	0.69	−0.09	−0.92	−0.23	95
Avg	0.94	—	—	—	92