Datasheet
DS138 LUXEON CoB with CrispWhite Technology Product Datasheet 20150225 ©2015 Lumileds Holding B.V. All rights reserved. 10
Color Bin Denition
Table 5. 3-step MacAdam Ellipse Color Denition
Nominal
ANSI CCT
Color Space
Center Point
(cx, cy)
Major Axis,
a
Minor Axis,
b
Ellipse
Rotation Angle
3000K Single 3-Step MacAdam ellipse (0.430, 0.395)
[1]
0.00834
[2]
0.00408
[2]
53.2°
Notes for Table 5:
1. Lumileds maintains a tester tolerance of ±0.005 on x,y coordinates.
2. Major and minor axis (a,b) from table 5 are a reference as depicted in gure 7.
0.36
0.37
0.38
0.39
0.40
0.41
0.42
0.43
0.44
0.38 0.40 0.42 0.44 0.46 0.48 0.50
CIE 1931 y
CIE 1931 x
Black Body Locus
3000K 3-step MAE
SDCM Center point (0.430,
0.395)
ANSI LUXEON CoB with
CrispWhite Technology
3000K, 3 SDCM
3000K
Figure 7. 3-step MacAdam ellipse color bin.