IDG Contributor Network: That theory about LED lightbulbs transmitting data? It's true. Li-Fi is here.
What if every light bulb in the world could also transmit data?
In July 2011, Harald Haas, a professor of engineering at Edinburgh University, poised that rhetorical question to a TED Global audience.
Then he went on to answer it. Broadband would be plentiful, nearly as limitless as oxygen itself, as it flowed from a standard-off-the-shelf LED (light-emitting diode). Society would come to view the way we transmit data now, which is via electromagnetic waves — specifically, radio waves — as quaint, at least when we were not scoffing in memory at its costs and frequency limitations.
To read this article in full or to leave a comment, please click here