LED binning
Binning of LEDs can be done in various bin shapes. In the past, LEDs were
usually binned in quadrangles. For general lighting applications the studies from
MacAdam inspired the so-called hybrid binning. Here the bin definition for the
LEDs follows a 3 step and a 5 step ellipse with subgroups to ensure a similar
white color impression of the LEDs (see Figure 11).