Invention Grant
- Patent Title: Spectacle lens and spectacles
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Application No.: US16018785Application Date: 2018-06-26
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Publication No.: US11002991B2Publication Date: 2021-05-11
- Inventor: Hitoshi Kamura , Yoichi Ogo , Yoshitaka Matsui , Kenji Takashiba
- Applicant: HOYA LENS THAILAND LTD.
- Applicant Address: TH Pathumthani
- Assignee: HOYA LENS THAILAND LTD.
- Current Assignee: HOYA LENS THAILAND LTD.
- Current Assignee Address: TH Pathumthani
- Agency: Oliff PLC
- Priority: JPJP2016-072764 20160331
- Main IPC: G02C7/10
- IPC: G02C7/10 ; G02C7/02 ; G02B5/22 ; G02B5/28 ; B32B7/02 ; G02B5/26

Abstract:
Provided is a spectacle lens including a lens substrate, a multilayer film located on an object-side surface of the lens substrate, and a multilayer film located on an eyeball-side surface of the lens substrate, wherein a blue light absorption rate is 10.0% or higher, the lens substrate includes a blue-light-absorbing compound, and an average reflectance in a wavelength range of 400 nm to 500 nm measured on each of the object-side surface and the eyeball-side surface of the spectacle lens is in a range of 10.0% to 20.0%, and a luminous reflectance measured on each of the object-side surface and the eyeball-side surface of the spectacle lens is less than 2.0%.
Public/Granted literature
- US20180373062A1 SPECTACLE LENS AND SPECTACLES Public/Granted day:2018-12-27
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