Beam control for indoor FSO and dynamic dual-use VLC lighting systems
B. Rahaim Michael(), Morrison Jessica(), D. C. Little Thomas()

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Figure 6. Signal strength (incident irradiance) depicting potential coverage for Scenarios 2 through 5 (left to right) at 1.67 m vertical distance from transmitter with half angle 15.4° (top) and 6. 9° (bottom)