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公开(公告)号：US20180321514A1
公开(公告)日：2018-11-08
申请号：US15773518
申请日：2015-11-06
Applicant: ESSILOR INTERNATIONAL
Inventor： Aude Carrega , Armel Jimenez , Franck Lestournelle , Amélie Kudla
CPC classification number: G02C7/104 , G02B1/116 , G02B1/16 , G02B5/208 , G02B5/223 , G02B5/283 , G02C7/108
Abstract: The present invention relates to an optical article comprising a substrate with a front main face and a rear main face, having a colorimetric coefficient b* as defined in the CIE (1976) L*a*b* international colorimetric system that is lower than or equal to 7, a relative light transmission factor in the visible spectrum Tv higher than or equal to 87%, blocking at least 8% of light having a wavelength ranging from 420 to 450 nm arriving on said front main face, and having a mean reflection factor Ruv on said rear main face between 280 nm and 380 nm, weighted by the function W(λ) defined in the ISO 13666:1998 standard, lower than 7%, for both an angle of incidence of 30° and for an angle of incidence of 45°. This optical article can be used to protect the eyes of a user from phototoxic blue light and UV light.
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公开(公告)号：US20180321513A1
公开(公告)日：2018-11-08
申请号：US15773478
申请日：2015-11-06
Applicant: ESSILOR INTERNATIONAL
Inventor： Aude Carrega , Armel Jimenez , Franck Lestournelle , Amélie Kudla
CPC classification number: G02C7/104 , G02B1/115 , G02B1/116 , G02B1/16 , G02B5/208 , G02B5/223 , G02B5/28 , G02C7/108
Abstract: The present invention relates to an optical article comprising a substrate with a front main face and a rear main face, having a colorimetric coefficient b* as defined in the CIE (1976) L*a*b* international colorimetric system that is lower than or equal to 4, a relative light transmission factor in the visible spectrum Tv higher than or equal to 87%, and blocking at least 8% of light having a wavelength ranging from 420 to 450 nm arriving on said front main face. This optical article can be used to protect the eyes of a user from phototoxic blue light.
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