Wireless charging may soon be realized. Researchers at University of Washington (UW) have developed a way to use laser to safely charge a cell phone.
That is to say, you don't need to insert any connection line, only through the laser transmitter of the room can you charge. The research team hopes that this technology can be widely used. In the future, whether it's mobile phones, computers or cameras, it can achieve wireless charging.
The new technology marks the first time that laser can charge smartphones.
The invisible narrow beam used to charge the cell phone can charge the cell phone in the room. The researchers say it can charge as fast as the traditional USB port.
"In order to achieve the charging target, the research team installed a thin battery behind the smartphone and then recharged it with a laser," the research team's report wrote.
"In addition, the team customize the safety features of the design, including the metal plate radiator on the smartphone to eliminate the excess heat generated by the laser, and the mechanism of the reflector to close the path of the laser charging beam when the person tries to move. "