CPC G02C 7/104 (2013.01) [G02C 7/108 (2013.01)] | 19 Claims |
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%.
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