Patent ID: 9575335
Date: 2017-02-21
CPC Classifications: G02C

Claim:
1. Eyewear comprising: a lens comprising an optical filter configured to attenuate visible light in at least a first spectral band and a second spectral band, each of the first and second spectral bands comprising: wherein the first spectral band comprises a first absorbance peak having a first center wavelength in the wavelength range between about 450 nm and about 490 nm; wherein the second spectral band comprises a second absorbance peak having a second center wavelength in the wavelength range between about 550 nm and about 590 nm; wherein an attenuation factor of the first and second absorbance peaks is greater than or equal to about 0.8 and less than 1, wherein the attenuation factor of an absorbance peak is obtained by dividing an integrated absorptance peak area within the spectral bandwidth by the spectral bandwidth of the absorbance peak; and wherein the lens has a CIE chromaticity x value between about 0.35 and 0.5.