Lasermotive Demonstrates Laser Powered UAV Helicopter
Unmanned aerial vehicles don’t usually stay up in the skies too long, taken that they have a short battery life. Well, with help from the sun, these vehicles can stay up a bit longer, like Qinetiq’s Zephyr that stayed up for a good 82 hours. The sun doesn’t shine all the time, as we all know, and solar powered UAVs can have a hard time staying up at night. With the latest development by LaserMotive, a Seattle based Research Company, UAVs can now stay up a lot longer, without the sun or any fuel, using just energy from lasers. The firm came up with a laser-powered model helicopter weighing 22 grams, tethered and radio controlled. The helicopter is powered by an array of semiconductor-diode near-infrared lasers producing laser beams combined into a single 7 centimeter in diameter beam. This beam when focused on the helicopters photovoltaic cells, juices them up.