The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 16, 2013
Filed:
Oct. 05, 2009
Wenshan Cai, Sunnyvale, CA (US);
Vladimir M. Shalaev, West Lafayette, IN (US);
Uday K. Chettiar, Philadelphia, PA (US);
Alexander V. Kildishev, West Lafayette, IN (US);
Wenshan Cai, Sunnyvale, CA (US);
Vladimir M. Shalaev, West Lafayette, IN (US);
Uday K. Chettiar, Philadelphia, PA (US);
Alexander V. Kildishev, West Lafayette, IN (US);
Purdue Research Foundation, West Lafayette, IN (US);
Abstract
An object is disposed such that the apparatus is between the object and an observer. The appearance of the object is altered and, in the limit, the object cannot be observed, and the background appears unobstructed. The apparatus is formed of a metamaterial where the properties of the metamaterial are varied as a function of distance from the interfaces. The metamaterial may be fabricated as a composite material having a dielectric component and inclusions of particles of sub-wavelength size, and may also include a gain medium.