OSRAM ORBEOS Components - Manual (Page 10)

10
BINNING
A widely-used standard for the classifi cation of chromaticity
in SSL application is “ANSI_NEMA_ANSLG C78.377-2008”
(http://www.nema.org/stds/ANSI-ANSLG-C78-377.cfm).
In this document, standard color temperatures are defi ned
and described as boxes along the Planck curve (as shown
in fi gure 8).
Solid-state lighting products are usually classifi ed into color and
brightness bins in order to meet customer demands and deliver
as narrow selections as possible. For ORBEOS ® products, the
binning schemes are explained in the following sections.
2. Binning
2.1. Color binning
Fig. 8. ANSI-NEMA classifi cation of SSL color temperature boxes.
Table 1: CIE x/y coordinates of corners and centers of the ANSI-NEMA boxes.
The corner and center points of these boxes are addressed as follows:
2,700 K 3,000 K 3,500 K 4,000 K 4,500 K 5,000 K 5,700 K 6,500 K
x y x y x y x y x y x y x y x y
Center
point
0.4578 0.4101 0.4338 0.4030 0.4073 0.3917 0.3818 0.3797 0.3611 0.3658 0.3447 0.3553 0.3287 0.3417 0.3123 0.3282
Tolerance
quadrangle
0.4813 0.4319 0.4562 0.4260 0.4299 0.4165 0.4006 0.4044 0.3736 0.3874 0.3551 0.3760 0.3376 0.3616 0.3205 0.3481
0.4562 0.4260 0.4299 0.4165 0.3996 0.4015 0.3736 0.3874 0.3548 0.3736 0.3376 0.3616 0.3207 0.3462 0.3028 0.3304
0.4373 0.3893 0.4147 0.3814 0.3889 0.3690 0.3670 0.3578 0.3512 0.3465 0.3366 0.3369 0.3222 0.3243 0.3068 0.3113
0.4593 0.3944 0.4373 0.3893 0.4147 0.3814 0.3839 0.3716 0.3670 0.3578 0.3515 0.3487 0.3366 0.3369 0.3221 0.3261