US 11,809,026 B2
Ophthalmic lens in particular for a pair of sunglasses
Sébastien Martins, Bellegarde sur Valserine (FR)
Assigned to BNL EUROLENS, Bellegarde sur Valserine (FR)
Filed by BNL EUROLENS, Bellegarde sur Valserine (FR)
Filed on Jun. 25, 2021, as Appl. No. 17/358,645.
Application 17/358,645 is a continuation of application No. 16/321,400, granted, now 11,054,671, previously published as PCT/EP2017/068765, filed on Jul. 25, 2017.
Claims priority of application No. 1657182 (FR), filed on Jul. 26, 2016.
Prior Publication US 2021/0318557 A1, Oct. 14, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G02C 7/00 (2006.01); G02C 7/10 (2006.01)
CPC G02C 7/104 (2013.01) [G02C 7/108 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An ophthalmological sunglass lens comprising at least one substrate comprising one or more colorant and/or pigment, wherein the one or more colorant and/or pigment of the at least one substrate acts, either alone or with at least one additional colorant or pigment comprised in the at least one substrate and/or additional substrates comprised in the lens, to absorb light passing through the lens such that the lens has a transmission spectrum wherein:
the transmission at wavelengths lower than 380 nm is lower than 1%;
the spectrum comprises in the wavelength range comprised between 390 nm and 420 nm a first transmission maximum (MAX-1) having a transmission higher than 8%;
the spectrum comprises in the wavelength range comprised between 426 nm and 440 nm a first transmission minimum (MIN-1), the transmission of the first minimum (MIN-1) being lower than the transmission of the first maximum (MAX-1);
the transmission in the wavelength range comprised between 450 nm and 500 nm has a transmission higher than 10%, the spectrum comprises in the wavelength range comprised between 570 nm and 595 nm a second transmission minimum (MIN-2);
the spectrum comprises in the wavelength range comprised between 590 nm and 620 nm a second transmission maximum (MAX-2) having a transmission higher than 5%, the wavelength corresponding to the second transmission maximum (MAX-2) being higher than that of the second transmission minimum (MIN-2) and the transmittance of the second transmission maximum (MAX-2) being higher than that of the second transmission minimum (MIN-2);
the spectrum comprises in the wavelength range comprised between 620 nm and 640 nm a third transmission minimum (MIN-3), the transmittance of the third minimum (MIN-3) being lower than the transmittance of the second maximum (MAX-2); and
the transmission at wavelengths higher than 640 nm is higher than 14%;
wherein the spectrum comprises in the wavelength range comprised between 440 nm and 480 nm a third transmission maximum (MAX-3) having a transmission higher than 15%.