Demonstraion of Li-Fi (optical wireless communication) at Nakano Open Campus 2018

Demonstration on optical wireless communication systems was carried out at Nakano Open Campus on 21 and 22, August 2018.
This year's demonstraion used two light sources, e.g., a white light source based on red, green, and blue LEDs, and an infrared LED. Two light sources conveyed different music. High school students had great interest on the demonstration. Especially, they were suprised to hear that invisible infrared light can transmit music.