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. 16, 2026
Filed:
Jun. 28, 2022
Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, CN;
Abstract
An intraocular lens (IOL) based on a metasurface, includes: a front optical lens, a rear optical lens, an equatorial plane, and an optical loop. The front optical lens and the rear optical lens are connected through the equatorial plane. The optical loop is connected with the equatorial plane. A metasurface structure is arranged on the equatorial plane. The metasurface structure includes a plurality of nanostructure units with a phase distribution of a planar axicon lens. A Gaussian beam is generated based on a biconvex lens structure of a conventional IOL, and the phase distribution of the planar axicon lens is loaded through a geometric phase of the metasurface structure, such that a Bessel-Gaussian beam is generated. When the beam is propagated in a free space, a cross section of the beam is not changed along with a propagation distance, such that the Bessel-Gaussian beam keeps a relatively consistent focal plane within a certain propagation distance, thereby realizing characteristics of long focal depth, adjustable refraction, and achromatism.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile