Title:
EYEGLASS LENS
Document Type and Number:
WIPO Patent Application WO/2022/071490
Kind Code:
A1
Abstract:
One embodiment of the present disclosure relates to an eyeglass lens that contains a compound that transmits no more than 5% of light of a wavelength of 410 nm and at least 70% of light of a wavelength of 430 nm under the following transmission measurement conditions. Transmission measurement conditions: Transmission of light of wavelengths of 410 nm, 430 nm is measured by spectrophotometer for a sample that contains 0.55 parts by mass of the compound per 100 parts by mass of a standard resin that is formed by curing a mixture that is 50.28 parts by mass a mixture of 2,5-bis(isocyanatomethyl)-bicyclo[2.2.1]heptane, 2,6-bis(isocyanatomethyl)-bicyclo[2.2.1]heptane, 25.50 parts by mass pentaerythritol tetrakis(3-mercaptopropionate), and 24.22 parts by mass 1,2-bis(2-mercaptoethylthio)-3-mercaptopropane, the sample being 1.6 mm thick at the measurement site.
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Inventors:
KOUSAKA MASAHISA (JP)
Application Number:
PCT/JP2021/036145
Publication Date:
April 07, 2022
Filing Date:
September 30, 2021
Export Citation:
Assignee:
HOYA LENS THAILAND LTD (TH)
KOUSAKA MASAHISA (JP)
KOUSAKA MASAHISA (JP)
International Classes:
G02C7/02; C08G18/38; C08G18/72; C08G75/08; G02B5/22; G02C7/00
Domestic Patent References:
| WO2020129933A1 | 2020-06-25 | |||
| WO2018180632A1 | 2018-10-04 | |||
| WO2020129930A1 | 2020-06-25 | |||
| WO2002041042A1 | 2002-05-23 | |||
| WO2020162592A1 | 2020-08-13 | |||
| WO2018190281A1 | 2018-10-18 |
Foreign References:
| JP2008169312A | 2008-07-24 | |||
| JP2012181268A | 2012-09-20 | |||
| JP2013238634A | 2013-11-28 | |||
| US20190367463A1 | 2019-12-05 |
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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