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:
Nov. 20, 2018
Filed:
Mar. 14, 2014
Daniel J. Gibson, Cheverly, MD (US);
Mikhail Kotov, Silver Spring, MD (US);
Geoff Chin, Arlington, VA (US);
Shyam S. Bayya, Ashburn, VA (US);
Jasbinder S. Sanghera, Ashburn, VA (US);
Vinh Q. Nguyen, Fairfax, VA (US);
Daniel J. Gibson, Cheverly, MD (US);
Mikhail Kotov, Silver Spring, MD (US);
Geoff Chin, Arlington, VA (US);
Shyam S. Bayya, Ashburn, VA (US);
Jasbinder S. Sanghera, Ashburn, VA (US);
Vinh Q. Nguyen, Fairfax, VA (US);
The United States of America, as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A method for making a gradient index infrared transmitting optic by thermally treating a preform, where the preform comprises two or more infrared transmitting glasses having different compositions and optical properties, where there is an interface between adjacent glasses, where during the thermal treatment one or more chemical elements from the glasses diffuses through one or more interface resulting in a diffused gradient index optical element comprising a gradient in the chemical element concentration, and where the optical element has a gradient in refractive index and dispersion. Also disclosed is the related infrared transmitting optical element made by this method.