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. 26, 2025
Filed:
Feb. 22, 2023
Mdco Technology Limited, Hangzhou, CN;
Xin Wei, Hangzhou, CN;
Zhenhua Song, Hangzhou, CN;
MDCO TECHNOLOGY LIMITED, Hangzhou, CN;
Abstract
The present disclosure relates to an ophthalmic lens for preventing progression of myopia and to spectacles with the ophthalmic lens. At least one surface of the ophthalmic lens is defined by a superposition of a base sag profile and a perturbation sag profile, and the perturbation sag profile is defined as a product of a first subfunction for defining a perturbation characteristic sag and a weighting function for weighting the first subfunction. As a result, the visual fatigue caused by ghosting to myopic patients can be avoided or significantly reduced while preventing or controlling the progression of myopia, thereby effectively improving the wearing visual experience of myopic patients.