LED light bulb 'li-fi' closer, say Chinese scientists
Date published: 18th October 2013
There are no supporting video or photos showing the technology in action.
Li-fi, also known as visible light communications (VLC), at these speeds would be faster - and cheaper - than the average Chinese broadband connection.
In 2011, Prof Harald Haas, an expert in optical wireless communications at the University of Edinburgh, demonstrated how an LED bulb equipped with signal processing technology could stream a high-definition video to a computer.
He coined the term "light fidelity" or li-fi and set up a private company, PureVLC, to exploit the technology.
"We're just as surprised as everyone else by this announcement," PureVLC spokesman Nikola Serafimovski told the BBC.
"But how valid this is we don't know without seeing more evidence. We remain sceptical."
This year, the Fraunhofer Heinrich Hertz Institute claimed that data rates of up to 1Gbit/s per LED light frequency were possible in laboratory conditions, making one bulb with three colours potentially capable of transmitting data at up to 3Gbit/s.
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