Using LED lights as an Internet connection

[Kevin Lancaster]

Using LED lights to move data at 300Mbps

Researchers are using light waves from LED lights to carry signals to wireless devices at 300 megabits per second.

 

[voipnow]

If this article tickels your interest , then google Free Space Optics.

I can visualise a one direction data flow from a LED ceiling light to a sensor on a laptop , but a cant visualise the return path unless it is via infre red light.