DOUBLE-SIDED ASPHERIC DIFFRACTIVE MULTIFOCAL LENS, MANUFACTURE, AND USES THEREOF

A double-sided aspheric diffractive multifocal lens and methods of manufacturing and design of such lenses in the field of ophthalmology. The lens can include an optic comprising an aspheric anterior surface and an aspheric posterior surface. On one of the two surfaces a plurality of concentric diff...

Full description

Saved in:
Bibliographic Details
Main Authors CHIU, Yi-Feng, YANG, Chuan-Hui, TSENG, Wen-Chu
Format Patent
LanguageEnglish
French
German
Published 05.04.2023
Subjects
BANDAGES, DRESSINGS OR ABSORBENT PADS
CONTACT LENSES
DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS
FILTERS IMPLANTABLE INTO BLOOD VESSELS
FIRST-AID KITS
FOMENTATION
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES
PHYSICS
PROSTHESES
SPECTACLES
SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES
TREATMENT OR PROTECTION OF EYES OR EARS
Online AccessGet full text

Cover

More Information
Summary:A double-sided aspheric diffractive multifocal lens and methods of manufacturing and design of such lenses in the field of ophthalmology. The lens can include an optic comprising an aspheric anterior surface and an aspheric posterior surface. On one of the two surfaces a plurality of concentric diffractive multifocal zones can be designed. The other surface can include a toric component. The double-sided aspheric surface design results in improvement of the modulation transfer function (MTF) of the lens-eye combination by aberration reduction and vision contrast enhancement as compared to one-sided aspheric lens. The surface having a plurality of concentric diffractive multifocal zones produces a near focus, an intermediate focus, and a distance focus.
Bibliography:Application Number: EP20210729651