DS162 LUXEON CoB Core Range Product Datasheet 20180313 ©2018 Lumileds Holding B.V. All rights reserved. 20
Color Bin Denitions
Table 5. 3-step MacAdam ellipse color bin denitions for LUXEON CoB Core Range.
NOMINAL CCT COLOR SPACE
CENTER POINT
[1]
(cx, cy)
MAJOR AXIS,
a
MINOR AXIS,
b
ELLIPSE ROTATION
ANGLE, θ
2200K Single 3-step MacAdam ellipse (0.5020, 0.4155) 0.00862 0.00397 49.30°
2700K Single 3-step MacAdam ellipse (0.4578, 0.4101) 0.00810 0.00420 53.70°
3000K Single 3-step MacAdam ellipse (0.4338, 0.4030) 0.00834 0.00408 53.20°
3500K Single 3-step MacAdam ellipse (0.4073, 0.3917) 0.00927 0.00414 54.00°
4000K Single 3-step MacAdam ellipse (0.3818, 0.3797) 0.00939 0.00402 53.70°
5000K Single 3-step MacAdam ellipse (0.3447, 0.3553) 0.00822 0.00354 59.60°
5600K Single 3-step MacAdam ellipse (0.3293, 0.3423) 0.00745 0.00320 59.10°
5700K Single 3-step MacAdam ellipse (0.3287, 0.3417) 0.00745 0.00320 59.09°
6500K Single 3-step MacAdam ellipse (0.3123, 0.3282) 0.00669 0.00285 58.57°
Notes for Table 5:
1. Lumileds maintains a tolerance of ±0.005 on x and y coordinates in the CIE 1931 color space.
Figure 7. 3-step MacAdam ellipse illustration for Table 5.