SPECTACLE LENS - HOYA LENS THAILAND LTD

Title:

SPECTACLE LENS

Document Type and Number:

WIPO Patent Application WO/2021/065759

Kind Code:

A1

Abstract:

Provided is a spectacle lens satisfying one of the following conditions. (Condition 1) The refractive index of a lens base material is not less than 1.60 but less than 1.67, and δYI is -0.60 to 0.10. (Condition 2) The refractive index of a lens base material is 1.67-1.70, and δYI is -1.20 to 0.20. (Condition 3) The refractive index of a lens base material is more than 1.70 but not more than 1.74, and δYI is -1.30 to 1.30.

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Inventors:

OGO YOICHI (JP)
KUBOTA SHOGO (JP)
SATO TAKASHI (JP)

Application Number:

PCT/JP2020/036504

Publication Date:

April 08, 2021

Filing Date:

September 28, 2020

Export Citation:

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Assignee:

HOYA LENS THAILAND LTD (TH)
OGO YOICHI (JP)
KUBOTA SHOGO (JP)
SATO TAKASHI (JP)

International Classes:

G02C7/00; G02B1/115; G02B1/14

Domestic Patent References:

WO2019009127A1

2019-01-10

Foreign References:

JP2015007695A	2015-01-15
JPH09127306A	1997-05-16
JPH10123301A	1998-05-15

Attorney, Agent or Firm:

FUKUOKA Masahiro et al. (JP)

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