Title:
EYEGLASS LENS AND DESIGN METHOD FOR EYEGLASS LENS
Document Type and Number:
WIPO Patent Application WO/2023/188558
Kind Code:
A1
Abstract:
An eyeglass lens 1 is configured so that at least one of two optical surfaces on the object side and the eyeball side is configured to comprise a base surface 11 that projects a light beam incident from the object side to the eyeball side and focuses the light beam at a position A on the retina of an eyeball, and a plurality of defocus surfaces 12 that projects a light beam incident from the object side to the eyeball side and focuses the light beam at a position B which is farther from the object side than position A, wherein the power Pb of the base surface 11 and the defocus power Ps of the defocus surfaces 12 satisfy the relationship -0.25Ps < Pb < -Ps.
Inventors:
QI HUA (JP)
MATSUOKA SHOHEI (JP)
MATSUOKA SHOHEI (JP)
Application Number:
PCT/JP2022/045392
Publication Date:
October 05, 2023
Filing Date:
December 09, 2022
Export Citation:
Assignee:
HOYA LENS THAILAND LTD (TH)
QI HUA (JP)
MATSUOKA SHOHEI (JP)
QI HUA (JP)
MATSUOKA SHOHEI (JP)
International Classes:
G02C7/06
Foreign References:
| JP2021005081A | 2021-01-14 | |||
| JP2021157126A | 2021-10-07 | |||
| US10442774B1 | 2019-10-15 |
Attorney, Agent or Firm:
FUKUOKA Masahiro et al. (JP)
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