Harald Haas, a teacher at university of Edinburgh(UK) introduced his audience with 'Li-Fi' at a TED Talk. It was an idea of "transferring information/data through light".
Today, Wi-Fi(Wireless Fidelity) is the most widely used internet connection and it makes up nearly 60% of global internet traffic. It was accidentally created during an experiment. But there's still some issues with it, it lags sometimes, sometimes there's a problem in connection and the worst of all anyone can pick the connection(it travels through walls).
The average internet speed is 23.5 Mega bits per second. South Korea has the highest internet speed where the highest was recorded at 100mbps.
Wi-Fi uses radio waves which have a frequency of 3Khz up to 300Ghz which is low compared to the frequency of the visible spectrum(visible light) which is from 430Tera Hertz to 770Tera hertz which is more than 10,000 times larger than normal radio wave frequency.
Thus, Light Fidelity(Li-Fi) was invented. It transmits data using LED light bulbs. All we need to do is replace our normal fluorescent lights with the LED's. It can transmit data 100x faster than our normal internet speed, nearly at 100Gbps. It doesn't stop there, researchers from Oxford university have recorded speeds of 224Gbps with which we can download 18, 1.5Gb movies in 1 second.
We just need to have our LED lights at our ceiling/anywhere on and it will start transmitting data in your home/office anywhere. It sends information by blinking at different rates(human eye will not be able to recognize the blinking).
Here's the TED Talk Video in which Harald Haas demonstrates the new Li Fi.
Today, Wi-Fi(Wireless Fidelity) is the most widely used internet connection and it makes up nearly 60% of global internet traffic. It was accidentally created during an experiment. But there's still some issues with it, it lags sometimes, sometimes there's a problem in connection and the worst of all anyone can pick the connection(it travels through walls).
The average internet speed is 23.5 Mega bits per second. South Korea has the highest internet speed where the highest was recorded at 100mbps.
Wi-Fi uses radio waves which have a frequency of 3Khz up to 300Ghz which is low compared to the frequency of the visible spectrum(visible light) which is from 430Tera Hertz to 770Tera hertz which is more than 10,000 times larger than normal radio wave frequency.
Thus, Light Fidelity(Li-Fi) was invented. It transmits data using LED light bulbs. All we need to do is replace our normal fluorescent lights with the LED's. It can transmit data 100x faster than our normal internet speed, nearly at 100Gbps. It doesn't stop there, researchers from Oxford university have recorded speeds of 224Gbps with which we can download 18, 1.5Gb movies in 1 second.
We just need to have our LED lights at our ceiling/anywhere on and it will start transmitting data in your home/office anywhere. It sends information by blinking at different rates(human eye will not be able to recognize the blinking).
Here's the TED Talk Video in which Harald Haas demonstrates the new Li Fi.
He transmits an HD video just using light waves
The company pureLifi has collected funds over $2 million around December,2015 and is going to launch their first ever dongle which runs Li-Fi. They have named their product Li-Fi-X. They will release their product near March 2016.
This product is going to change the world. It will be cheap light powered internet. It can lead to a situation where all electronic devices communicate with each other. If Li-fi is available widely, it will revolutionize technology and transfer of information will no longer be an obstacle for an average user.
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