US 12,455,465 B2
Color-selective partial polarization filters for modification of human color vision while viewing color images in polarized light
Andrew Schmeder, Richmond, CA (US)
Assigned to Proaxient Technologies LLC, Richmond, CA (US)
Filed by Proaxient Technologies LLC, Richmond, CA (US)
Filed on Jul. 26, 2023, as Appl. No. 18/226,484.
Claims priority of provisional application 63/392,247, filed on Jul. 26, 2022.
Prior Publication US 2024/0036359 A1, Feb. 1, 2024
Int. Cl. G02C 7/12 (2006.01); G02C 7/10 (2006.01)
CPC G02C 7/12 (2013.01) [G02C 7/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A spectacle eyewear device comprising:
a first lens configured to filter light received by a first eye of a person wearing the spectacle eyewear device, the first lens comprises a first color-selective partial polarization filter;
a second lens configured to filter light received by a second eye of the person wearing the spectacle eyewear device, the second lens comprises a second color-selective partial polarization filter; and,
within a first spectral sub-band consisting of a 50 nanometer wide band located between 450 nanometers to 650 nanometers, the mean spectral polarization efficiency of the first and second color-selective partial polarization filters is greater than 30 percent;
within a second spectral sub-band consisting of a 50 nanometer wide band located between 450 nanometers to 650 nanometers and not overlapping with the first spectral sub-band, the mean spectral polarization efficiency of the first and second color-selective partial polarization filters is less than 20 percent; and,
the polarization axis of the first color-selective partial polarization filter is oriented between 30 degrees to 90 degrees away from the polarization axis of the second color-selective partial polarization filter.