We're probably still awhile away from a real invisibility cloak, but scientists are certainly making progress. Researchers at the University of Rochester have created the Rochester cloak, which is an arrangement of lenses that ultimately make solid objects appear invisible. The setup only uses ordinary lenses to bend the light, but the creators claim it is the first device that can do "three-dimensional, continuously multidirectional cloaking." It uses four standard lenses that "keeps the object hidden as the viewer moves up to several degrees away from the optimal viewing position."