![]() ![]() ![]() The charging laser and guard lasers are normally invisible to the human eye, but red beams have been inserted in place of the guard beams for demonstration purposes. ![]() “We have designed, constructed, and tested this laser-based charging system with a rapid-response safety mechanism, which ensures that the laser emitter will terminate the charging beam before a person comes into the path of the laser,” Gollakota says. “Safety was our focus in designing this system,” says coauthor Shyam Gollakota, an associate professor in of computer science & engineering at the University of Washington. The team also custom-designed safety features-including a metal, flat-plate heatsink on the smartphone to dissipate excess heat from the laser, and a reflector-based mechanism to shut the laser off if someone tries to move in the charging beam’s path. Posted by University of Washington News on Tuesday, February 20, 2018 Using a laser to wirelessly charge a smartphone safely across a roomĮngineers at the University of Washington have developed a method to safely charge a smartphone wirelessly - using a laser. ![]()
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