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. 30, 2026
Filed:
May. 20, 2024
Iucf-hyu (Industry-university Cooperation Foundation Hanyang University), Seoul, KR;
Seok Ho Song, Seoul, KR;
Abstract
A contact lens made of multilayer wave plates includes two or more wave plates disposed between a corneal protective layer and lens surface layer thereof to increase the number of focal points. More particularly, the contact lens includes a lens surface layer; a corneal protective layer; and a wave plate layer in which two or more wave plates composed of a birefringent material are stacked and which is disposed between the lens surface layer and the corneal protective layer, and phases of neighboring wave plates in the wave plate layer have opposite phase signs so as to complement each other.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile