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:
Jun. 23, 2020
Filed:
Feb. 10, 2012
Daniel J. Gibson, Cheverly, MD (US);
Jasbinder S. Sanghera, Ashburn, VA (US);
Guillermo R. Villalobos, Springfield, VA (US);
Ishwar D. Aggarwal, Chapel Hill, NC (US);
Dean a Scribner, Arlington, VA (US);
Daniel J. Gibson, Cheverly, MD (US);
Jasbinder S. Sanghera, Ashburn, VA (US);
Guillermo R. Villalobos, Springfield, VA (US);
Ishwar D. Aggarwal, Chapel Hill, NC (US);
Dean A Scribner, Arlington, VA (US);
THE GOVERNMENT OF THE UNITED STATES, AS REPRESENTED BY THE SECRETARY OF THE NAVY, Arlington, VA (US);
Abstract
The present invention is directed to a method for making infrared transmitting graded index optical elements by selecting at least two different infrared-transmitting materials, each with a different refractive index, having similar thermo-viscous behavior; assembling the infrared-transmitting materials into a stack comprising one or more layers of each infrared-transmitting material resulting in the stack having a graded index profile; and forming the stack into a desired shape. Also disclosed is the related optical element made by this method.