2013-08-28

Japanese Researchers Develop LED Underwater Communication Technology

Researchers in Okinawa Japan have developed a communication system which uses LED lights as a medium for underwater communication. The device works by first taking sound and converting it into a light signal. The LED light will then transmit the signal to the other person’s receiver where it is reverted back to sound.
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For three decades, white LEDs have depended on rare earth materials such as yttrium aluminum garnet (YAG) layered onto a blue LED chip (Figure 1). Seoul Viosys Co., Ltd. (KOSDAQ: 092190) today announced that it has broken that dependence. It h... READ MORE

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