LI-FI
A BINARY DREAM COMES TRUE
Li-Fi was introduced to the world by Professor Harald Hass at a 2011 TED talk.
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There are two kinds of light, the glow that illuminates and the glow that obscures”, so said James Thurber, a famous American author. And now, there seems three kinds of light. The third comes as the glow that sends data. That sentence doesn’ t seem to make any sense until you come to know about Li-Fi, a revolutionary technology that delivers a high speed bi-directional networked communication in a flicker of a light.
Li-Fi is the short name used for light-fidelity, a new form of wireless communication technology that uses light signals to communicate data. Instead of the radio spectrum, Li-Fi uses infrared and ultra-violet spectrums that can carry more information when compared with radio frequency waves. If the question“ how?” pops into your mind right now,“ visible light communication( VLC)” is simply the answer.
The LED lights used in your flashlight can be turned into a wireless router using visible light communication. It makes the LED flicker by switching it on and off at a high speed. If you are
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Source: http:// icdn3. digitaltrends. com
imagining a whole mess of LEDs that are flickering and making your eyes pain, that’ s not the correct image about VLC. The speed is almost invisible to the naked eye which means LEDs are blinked at a very high rate which will not impact living beings. The process is almost like a Morse code which comprises a flow of binary data.
Li-Fi was introduced to the world by Professor Harald Hass at a 2011 TED talk. Although he started researching this technology back in 2003. It was in 2012, he was able to introduce the technology at a commercial level. PureLiFi was founded in 2012 by Professor Harald with the goal of commercializing Li-Fi technology all over the world. Professor Harald predicted that the extensive demand for radio spectrum can be a real threat for communication in the future. The invention of Li-Fi is not a walk in a park. According to NASA, the first of
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