US 12,321,046 B2Granted

Spectacle lenses with auxiliary optical elements

AssigneesNthalmic Holding Pty Ltd, Brighten Optix Corp., Shanghai Isparx Medical Co., Ltd

InventorsRavi Chandra Bakaraju, Klaus Ehrmann

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Abstract

The present disclosure is directed to devices and/or systems of modifying the incoming light through spectacle lenses that utilise at least one auxiliary or regional optical element, to provide extension or elongation of the depth of focus for a myopic eye. The disclosure relates to methods of correcting myopia and controlling or reducing the rate of myopia progression utilising extension of the depth of focus provided by the at least one auxiliary or regional optical element configured within, or in conjunction, combination, or juxtaposition with spectacle lenses. This disclosure relates to the use of an axicon, a light sword element, or a peacock eye element within the regional optical element or a sub-lens. This disclosure also relates to the use of a plurality of axicons, light sword elements or peacock eye elements configured within, or in conjunction, combination, or juxtaposition with spectacle lenses.

Claims20

Dependent claims

A spectacle lens for a myopic eye comprising:

an integral base spectacle lens with a front and a back surface, configured with a distance base prescription to correct, at least in part, the refractive error of the myopic eye;
wherein the integral base spectacle lens has a spherical or a toric base prescription;
and a plurality of regional optical elements formed within, or in conjunction with the front or the back surface of the integral base spectacle lens;
wherein each of the plurality of regional optical elements is configured with a residual sag profile, a surface area greater than 1.75 square mm and a center-to-center separation of at least 0.5 mm;
and
wherein a total combined surface area of the plurality of regional optical elements is less than 35% of the total surface area of the integral base spectacle lens;
and
wherein the combination of each of the plurality of regional optical elements and the integral base spectacle lens is configured to provide an extension of regional depth of focus for at least one portion on the retina of the myopic eye.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/799,352Filed 8 Feb 2021
Priority: AU 202090039712 Feb 2020
Published: US 2023/0101527 A130 Mar 2023
Granted: 3 Jun 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G02C 7/086
Auxiliary lenses; Arrangements for varying focal length: auxiliary lenses located directly on a main spectacle lens or in the immediate vicinity…
G02B 3/02
Simple or compound lenses: with non-spherical faces
G02B 5/001
Optical elements other than lenses: axicons, waxicons, reflaxicons
G02C 7/022
Lenses; Lens systems ; Methods of designing lenses: ophthalmic lenses having special refractive features achieved by special materials or material…