Figure 5. Left: First generation real-time point-to-point 500 Mb/s VLC system as shown at a commercial exhibition. Middle: Zoom-in of
the desk part. Note that this setup includes an infrared uplink, while visible light could be used as well. Right: Second generation of the
bidirectional transceivers with a reduced footprint of 87 mm × 114 mm × 42 mm without lenses.