Title:
SPECTACLE LENS AND METHOD FOR DESIGNING SPECTACLE LENS
Document Type and Number:
Japanese Patent JP2022146279
Kind Code:
A
Abstract:
To provide a spectacle lens capable of enhancing the effect of inhibiting myopia progression.SOLUTION: The spectacle lens is provided with a base region 10 that causes a light flux incident from an object-side surface to be emitted from an eyeball-side surface, and converge onto a retina through the eyeball, and a plurality of defocus regions 20 that are in contact with the base region and each have a property in which the light flux passing through at least part of the defocus region is incident on the retina as diverging light. The spectacle lens has a first defocus region disposition part in which at least part of the plurality of defocus regions is disposed such that, when the object-side surface is seen in plan view, a circular region with a dimeter of 4 mm where only one defocus region is included in the circle is present.SELECTED DRAWING: Figure 2
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Inventors:
KI KA
Application Number:
JP2021047163A
Publication Date:
October 05, 2022
Filing Date:
March 22, 2021
Export Citation:
Assignee:
HOYA LENS THAILAND LTD
International Classes:
G02C7/06
Attorney, Agent or Firm:
Masahiro Fukuoka
Setsiya Aniya
Tomohiro Okuyama
Hideo Tachibana
Setsiya Aniya
Tomohiro Okuyama
Hideo Tachibana
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