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A research team USA University of Rochester said recently, they have invented the "Harry Potter" in the movie "the invisibility cloak". It is reported, the team used around 4 different focal length lenses bend light so that objects objects, soundless and stirless "stealth". The device is become "Rochester Cape", is the first can provide three-dimensional "stealth" function of the stealth technology products, manufacturing cost is about $1000 (about 6127 yuan).
Although the equipment can hide objects, but is not present in the form of an invisibility cloak. At first, it can only be hidden hands, face and a ruler, but the team members believe that, as long as there is enough big lens, it will be infinitely large hiding capacity. It can be applied in various fields of operation, interior design, art, military etc..