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Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Donald W. Rule0
Francisco Santiago0
Kevin A. Boulais0
Date of Patent
January 4, 2011
Patent Application Number
12420840
Date Filed
April 9, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
A dynamically variable lens is made from actively tunable electromagnetic metamaterial cells. The lens operates on electromagnetic radiation including: radio frequency waves, microwaves, teraherz waves, near infrared waves, infrared waves and visible waves. The focal length of the lens is changed at a selected frequency. In the alternative, the frequency of radiation operated on is changed as a function of time. A third alternative provides precise control of the index of refraction of the lens. The index of refraction is varied progressively across the lens from one edge to the opposite edge causing the radiation to be directed at an angle.
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