LED Device Lets Divers Talk Under Water

Date: 1/8/2013

A company in Okinawa Prefecture developed the world’s first communications device that enables divers to ‘talk’ with one another
using light signals. Marine Comms Ryukyu Inc.’s i-MAJUN system uses a light-emitting diode flashlight and a special diving mask. The mask converts a diver’s voice into blinking LED signals that are transmitted to another diver, where the signals are converted back into a voice that can be heard over speakers embedded in the mask.

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