Title:
EYEGLASS LENS
Document Type and Number:
WIPO Patent Application WO/2023/234132
Kind Code:
A1
Abstract:
[Problem] To provide an eyeglass lens for suppressing the progression of refractive error that comprises two types of regions with different focal lengths: an optical center region to which a predetermined refractive power is added for refractive correction, and an optical region for suppressing the progression of refractive error that does not contribute to refractive correction, the eyeglass lens serving for refractive correction in which vertical lines and horizontal lines in the visual field are unlikely to be distorted. [Solution] An eyeglass lens 31 is configured to have first to third optical regions 32A-32C with a triple rectangular pattern different in a refractive power from an optical center region 33 that are spaced around the optical center region 33. The first to third optical regions 32A-32C have boundary lines with the surrounding regions in the vertical and horizontal directions.
Inventors:
SUZUKI EIJI (JP)
Application Number:
PCT/JP2023/019260
Publication Date:
December 07, 2023
Filing Date:
May 24, 2023
Export Citation:
Assignee:
TOKAI OPTICAL CO LTD (JP)
International Classes:
G02C7/06
Foreign References:
| JP2020500328A | 2020-01-09 | |||
| CN210690971U | 2020-06-05 | |||
| CN114114711A | 2022-03-01 | |||
| CN212160264U | 2020-12-15 |
Attorney, Agent or Firm:
SHIBATA Junichi (JP)
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