Israel’s Wi-Charge will recharge mobile devices via a power “transmitter” suspended from a high point in the room. The transmitter, connected to an existing electrical outlet, generates a narrow beam of infrared light to a light receiver installed on your mobile device.
http://www.greenprophet.com/2013/09/wi-charge-cordless-air-device-power/
http://www.youtube.com/watch?v=j2i1glSRn3w