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:
Aug. 31, 2021
Filed:
Mar. 28, 2019
Applicant:
Aizhong Zhang, Rochester, NY (US);
Inventor:
Aizhong Zhang, Rochester, NY (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02C 7/04 (2006.01); A61F 2/16 (2006.01);
U.S. Cl.
CPC ...
G02C 7/044 (2013.01); A61F 2/1618 (2013.01); A61F 2/1656 (2013.01); G02C 2202/20 (2013.01);
Abstract
The apparatus and design method of a subzonal multifocal diffractive (SMUD) lens is described herein. The apparatus includes a plurality of annular concentric zones. Each zone are further divided into at least two subzones, where the division of the subzones is arbitrary, but the division is consistent with respect to radius squared racross all zones. The subzone phase profile is independent with each other within the same zone, and can be optimized to achieve a desired splitting ratio among all foci.
Zhang, Aizhong. (2021). Subzonal multifocal diffractive lens (U.S. Patent No. 11106056). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11106056
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile