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:
Jul. 07, 2026
Filed:
Jun. 26, 2023
Kent State University, Kent, OH (US);
Afsoon Jamali, Menlo Park, CA (US);
Amit Bhowmick, Kent, OH (US);
Douglas Bryant, Kent, OH (US);
Sandro Pintz, Menlo Park, CA (US);
Phillip Bos, Hudson, OH (US);
KENT STATE UNIVERSITY, Kent, OH (US);
Abstract
A gradient refractive index (GRIN) lens includes a transparent central disk and transparent annular segments, including central annular segments and peripheral annular segments. The central disk and each annular segment has a continuous optical phase profile at a design wavelength along a radial direction extending outward from a center of the central disk. An optical phase discontinuity is present at the interface between the central disk and the innermost central annular segment and at the interface between each pair of adjacent annular segments. Radial widths of the central annular segments decrease with increasing distance away from the center of the central disk. The peripheral annular segments have optical phase profiles for the design wavelength that are linear or have maximum first derivatives that are constant or become smaller with increasing distance of the peripheral annular segments away from the center of the central disk.