Figure 2From: Effect of LED emission cross-section in indoor visible light communication systemsThe horizontal illuminance contour plots: (a) one LED with a circular emission cross-section [Max 683 lx], and quasi-elliptic emission cross-sections with two LEDs separated by a distance: (b) d = 0.3 m and (c) d =1.0 m [Max. 686 lx].Back to article page