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:
May. 03, 2016
Filed:
Oct. 26, 2011
Olav Solgaard, Stanford, CA (US);
Reinhold Dauskardt, Menlo Park, CA (US);
Nina Vaidya, Stanford, CA (US);
Olav Solgaard, Stanford, CA (US);
Reinhold Dauskardt, Menlo Park, CA (US);
Nina Vaidya, Stanford, CA (US);
The Board of Trustees of the Leland Stanford Junior University, Palo Alto, CA (US);
Abstract
An Axially Graded Index LEns (AGILE) is provided. Such optical elements can provide optical concentration in excess of the free-space brightness theorem limit, because of the increased refractive index at the output of the concentrator compared to the input. Optical contact (i.e., no intervening low index material) between the AGILE and the absorbing element (or an optical source) can be employed to ensure no loss of brightness at the interface between the AGILE and the absorbing element (or source). Although solar cell concentration is a significant application of this technology, there are various other applications, such as increasing the efficiency of optical emission, and providing transmissive optical windows that include optically cloaked regions.