Soon we will charge their smartphones using a laser

Scientists from the University of Washington are working on a very interesting solution. They want to charge smartphones using a laser beam - at USB-level speeds and with complete safety..

Wireless charging won’t surprise anyone these days.. Their prices are low, buy wireless chargers here many home users, to the office, car… True, during its operation there is a large amount of energy loss., so scientists at the University of Washington decided to start working on a more practical laser-based solution. As planned by the scientists, so that will not only be charged smartphones, but also other mobile devices, in particular laptops and quadcopters. Scientists have set ourselves two conditions, firstly, they want charging to be as fast as possible, secondly - so that it is safe. According to recent reports, they have already achieved.

Laser is as effective as USB

According to the information provided by the authors, laser power capable of providing 2 Mo on the surface of about 100 cm² at a distance of just over 4 m. Moreover, Scientists see no major obstacles, to improve these results.

„The beam provides a fast charging, as you connect your smartphone to USB-port, but it does not have anywhere to connect, and just leave on the table” , – said Elyas Bayati from the team of scientists.

true, not everything is so simple. On the other hand, we get a battery charger, which is not tied to a specific location.

Laser Wireless Charging

For, to create your masterpiece,p scientists must decide, first of all, three problems. Their task was to do so, that:

• charger and effectively smartphone were localized:
• the laser is not "beat" in the passing person;
• Charging device does not lead to dangerous overheating to temperatures.

As scientists have coped with these tasks? First of all, they have changed the receiving device on your smartphone, it emits a high-frequency signal, which allows it to define the emitter and accurately direct the laser beam. These sounds are not audible to humans (really do not know how they will react to the animals, studies have not been conducted).

In turn, The second problem was solved by using reflectors, are the basis of the rapid alert system - if you detect an obstacle in the path of the laser, once it is turned off (thus quickly, because they work with the speed of light).

Efficient and secure wireless charging

Problem regarding overheating, scientists decided by using thin aluminum strips on a smartphone, acting as a radiator. Scientists say, that this solution is quite safe, therefore can be used not only at home, but also in production conditions.

Of course, scientists have yet to solve a lot of problems. But in spite of this it can not hide the fact, that this technology is a great potential.

In the following video you can see how modern wireless charging works.