公开(公告)号：US20220035177A1

公开(公告)日：2022-02-03

申请号：US17279755

申请日：2019-09-24

Applicant: HOYA LENS THAILAND LTD.

Inventor： Takahiro UCHIDANI

IPC: G02C7/02

Abstract: With regard to an eyeglass lens that is provided with a plurality of defocus regions on at least one of an object-side surface and an eyeball-side surface, the surface shape is evaluated through measuring the surface shape of the surface of the eyeglass lens that has the plurality of defocus regions, and acquiring three-dimensional data regarding the surface shape; a classifying data groups regarding the plurality of respective defocus regions and a data group regarding a base region, which is a region where the defocus regions are not formed, by performing cluster analysis on the three-dimensional data; combining curved surface shape data obtained by performing curve fitting on each of the classified data groups, and extracting reference shape data regarding the object-side surface; and comparing the three-dimensional data and the reference shape data, and obtaining degrees of deviation of the three-dimensional data from the reference shape data.

公开(公告)号：US20250147343A1

公开(公告)日：2025-05-08

申请号：US18838767

申请日：2022-12-21

Applicant: HOYA LENS THAILAND LTD.

Inventor： Takahiro UCHIDANI ,  Shohei MATSUOKA

IPC: G02C7/06

Abstract: An eyeglass lens with a functional region, wherein the functional region includes: a base region that causes a luminous flux that has entered an object-side face to exit from an eyeball-side face, enter a pupil of a wearer, and converge on a retina; and retinal non-convergence regions that cause a luminous flux that has entered the object-side face to exit from the eyeball-side face, and do not cause a luminous flux that has entered the pupil of the wearer to converge on the retina, at least some of the retinal non-convergence regions are buffer regions that can compensate local negative astigmatism occurring due to spherical aberration of the eye at some positions of a distribution of the astigmatism, and surfaces of the buffer regions are toric surfaces whose axial direction is a circumferential direction, and are elongated along the circumferential direction in a plan view.

公开(公告)号：US20220057293A1

公开(公告)日：2022-02-24

申请号：US17297747

申请日：2019-12-11

Applicant: HOYA LENS THAILAND LTD.

Inventor： Hua QI ,  Takahiro UCHIDANI

IPC: G01M11/02 ,  G02C7/02 ,  G02C7/06

Abstract: Provided is a method for evaluating an eyeglass lens that has a plurality of convex portions on at least one of an object-side surface and an eyeball-side surface, in which the eyeglass lens is evaluated based on the number of rays at a plurality of focal positions A at which rays, which pave passed through the plurality of convex portions in a predetermined evaluation region of the eyeglass lens, converge when ray tracing is performed on the predetermined evaluation region, and technology related thereto.