Document Type

Patent

Publication Date

5-17-2016

Patent Number

9340446

CPC

C03C 4/0028 (2013.01)

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.

Application Number

14/172175

Assignees

Lockheed Martin Corporation (Bethesda, MD, US) The Penn State Research Foundation (University Park, PA, US) Clemson University Research Foundation (Clemson, SC, US)

Filing Date

02/04/2014

Other/U.S. Class

C03B27/012; C03C4/00

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