Though this reminds me more of the fancloak/Warder's cloak from Robert Jordan's Wheel of Time series, it looks like someone's trying to patent an invisibility cloak.
The idea hinges on carefully mimicking background lighting conditions to help render an object invisible, similar to how a chameleon blends in with its surroundings. The rear and front surfaces of an object are covered with a material containing an array of photodetectors and light emitters respectively.Should be interested, if it works.
Courtesy of Slashdot.