Wifi is out of date, and now we access the network from LED

Whether you are using a wireless network in a cafe, or stealing it from the guy next door "network, or for bandwidth resources at a conference, when more than one device to access the network, you may be gotten frustrated at the slow speeds. When more and more people, as well as their more and more devices, access to the wireless Internet, the blockage of the airwaves will make it difficult to obtain reliable signals. Radio waves are just one of the frequencies that can carry our data. What if we could surf the Internet with other bands?

A German physicist, Harald Haas, think of what he called a "lighting data transmission" solution (this) will come out from optical fiber, to transfer data by using led beam. The brightness of the LED lights will change beyond the speed of human perception.

Haas said that this is what he called the "D light," the invention can be more than 10M/S of the speed of data, which is more than your average access bandwidth to large. He envisioned the future, with laptops, smartphones, and graphics input boards to transmit data in the room light beam. And security will be very easy, once you can not see the beam, you can not get the data. It is conceivable that this technology a wide range of applications, from a variety of street lights into the public network to automatically drive the car to exchange data through the headlights. And more to get data from the visible band, can ease the electromagnetic wave of Wifi may cause adverse health effects.