Invisibility Cloak Uses Ordinary Lenses
ROCHESTER, N.Y., Nov. 20, 2014 — Invisibility cloaks could be a step closer to reality, thanks to a new device that uses readily available materials to cloak objects across a wide range of angles. Researchers at the University of Rochester have developed a combination of four standard, widely obtainable lenses that keeps an object hidden as the viewer moves up to several degrees away from the optimal viewing position. Also, the new device is broadband, so it works for the whole visible spectrum of light, not just with