Invention Application
- Patent Title: SPECTACLE LENS
- Patent Title (中): 镜面镜片
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Application No.: US15038829Application Date: 2014-11-26
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Publication No.: US20170075144A1Publication Date: 2017-03-16
- Inventor: Yoshitaka MATSUI , Yoichi OGO , Koushi HARADA
- Applicant: HOYA LENS THAILAND LTD.
- Applicant Address: TH Thanyaburi, Patumthani
- Assignee: HOYA LENS THAILAND LTD.
- Current Assignee: HOYA LENS THAILAND LTD.
- Current Assignee Address: TH Thanyaburi, Patumthani
- Priority: JP2013-244307 20131126
- International Application: PCT/JP2014/081267 WO 20141126
- Main IPC: G02C7/10
- IPC: G02C7/10 ; G02B5/28

Abstract:
An aspect of the present invention relates to a spectacle lens including a multilayer film of a vapor deposition film (excluding a metal film and a metal alloy film) directly or indirectly at least on one surface of a lens substrate. The multilayer film includes at least one high refractive index layer and at least one low refractive index layer, the total optical film thickness of the high refractive index layer is λ/4 or more at a wavelength λ=780 nm, and a reflection spectrum measured in a wavelength range of 380 to 2000 nm on a surface having the multilayer film has a maximum reflectance in a wavelength range of 800 to 1350 nm.
Public/Granted literature
- US10718961B2 Spectacle lens Public/Granted day:2020-07-21
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