US 12,321,046 B2
Spectacle lenses with auxiliary optical elements
Ravi Chandra Bakaraju, Sydney (AU); and Klaus Ehrmann, Sydney (AU)
Assigned to NTHALMIC HOLDING PTY LTD, Sydney (AU); BRIGHTEN OPTIX CORP, LTD., Taipei (TW); and SHANGHAI ISPARX MEDICAL CO., LTD, Shanghai (CN)
Appl. No. 17/799,352
Filed by NTHALMIC HOLDING PTY LTD, Sydney (AU)
PCT Filed Feb. 8, 2021, PCT No. PCT/AU2021/050103
§ 371(c)(1), (2) Date Aug. 12, 2022,
PCT Pub. No. WO2021/159170, PCT Pub. Date Aug. 19, 2021.
Claims priority of application No. 2020900397 (AU), filed on Feb. 12, 2020.
Prior Publication US 2023/0101527 A1, Mar. 30, 2023
Int. Cl. G02C 7/08 (2006.01); G02B 5/00 (2006.01); G02C 7/02 (2006.01)
CPC G02C 7/086 (2013.01) [G02B 5/001 (2013.01); G02C 7/022 (2013.01); G02C 2202/24 (2013.01)] 20 Claims
OG exemplary drawing
 
1. 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.