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. 17, 2016
Filed:
Feb. 04, 2014
Lockheed Martin Corporation, Bethesda, MD (US);
The Penn State Research Foundation, University Park, PA (US);
Clemson University Research Foundation, Clemson, SC (US);
Clara Rivero Baleine, Orlando, FL (US);
Theresa S. Mayer, Port Matilda, PA (US);
Jonathan David Musgraves, Anderson, SC (US);
Kathleen Richardson, Clemson, SC (US);
Peter Wachtel, Anderson, SC (US);
Lockheed Martin Corporation, Bethesda, MD (US);
The Penn State Research Foundation, University Park, PA (US);
Clemson University Research Foundation, Clemson, SC (US);
Abstract
A refractive index device and method of making it include obtaining a glass structure comprising a plurality of nucleation sites. The glass structure is formed from a glass composition that comprises a first chemical component and a second chemical component. A crystal of the second chemical component has a different second refractive index from a first refractive index of the first chemical component. Each nucleation site defines where a crystal of the second chemical component can be grown. The method includes causing crystals of the second chemical component to grow in situ at a set of the plurality of nucleation sites in order to produce a spatial gradient of a refractive index in the glass structure.