Researchers Just Wirelessly Transmitted Power Over 98 Feet of Thin Air
We could one day charge our phones and tablets wirelessly through the air, thanks to newly developed technology. Researchers have used infrared laser light to transmit 400mW of light power over distances of up to 30 meters (98 feet).
https://www.sciencealert.com/researchers-just-wirelessly-transmitted-power-over-98-feet-of-thin-air