Invention Grant
- Patent Title: Spectacle lens
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Application No.: US15038829Application Date: 2014-11-26
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Publication No.: US10718961B2Publication Date: 2020-07-21
- Inventor: Yoshitaka Matsui , Yoichi Ogo , Koushi Harada
- 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: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@4d53f0dd
- International Application: PCT/JP2014/081267 WO 20141126
- International Announcement: WO2015/080160 WO 20150604
- 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
- US20170075144A1 SPECTACLE LENS Public/Granted day:2017-03-16
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