Forget those chargers that plug into the walls. developed an infrared laser charger that can wirelessly charge a cell phone over 30 meters away.
Currently, smartphone users continue to rely on their traditional chargers with cables. As the report on the website of computer todaywireless charging today requires putting the smartphone on a base or making contact with a surface.
The problem is that wireless charging cannot be done over the air, as is done with file transfer via bluetooth. This is what some Korean engineers noticed when they developed this charging system based on infrared lasers that transmit energy to several devices at the same time.
How does this charger work?
This laser charger can power several cell phones at the same time that are located up to 30 meters away. We just have to be within that range for our smartphones’ battery to charge.
In addition to charging smartphones, you can also do the same with any device such as laptops. A leaked image reveals how it works.
Basically, the charger is a transmitter that can be installed in any space and is connected to a receiver that could be incorporated into the devices.
The transmitter, which looks like a projector, is made up of an erbium fiber amplifier that produces a beam of light that is fired to reach the receiver, which is made up of a spherical lens retroreflector.
According to NewAtlasthis receptor has a point where this incoming light is directed, where there is a photovoltaic cell waiting to absorb the light and produce electricity.
In its testing phase, the charger was able to transmit a 400 mW beam of light over a distance of 30 meters, where the 10×10 mm receiver converted it into 85 mW of energy enough to charge devices.