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:
Sep. 22, 2026
Filed:
Mar. 21, 2022
Iucf-hyu (Industry-university Cooperation Foundation Hanyang University), Seoul, KR;
Seok Ho Song, Seoul, KR;
Seung Min Lee, Seoul, KR;
Abstract
Disclosed is a multifocal lens having multiple waveplates. More particularly, the multifocal lens having multiple waveplates includes a lens having an incident surface and an opposite surface thereof, and two or more waveplates disposed on the lens in a direction of the same axis of the lens and made of a birefringent material, wherein, in phase distribution of the waveplates, a location where a focal point is formed changes as a phase section (X) between a center of the lens and a point where a phase rapidly changes, wherein, in the same phase section (X) between neighboring first and second waveplates, a phase at the second waveplate decreases when a phase at the first waveplate increases.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile