Optical device for enhancing human color vision

A transmissive optical device for enhancing human color vision, said device comprising:

• a substrate;
• and
• one or more colorant layers applied at least one of onto and into the substrate, the one or more colorant layers comprising at least two colorants with one colorant having a peak absorbance at approximately 575 nm, the colorants created based on colorant-specific absorption spectra as defined by selected concentrations,
• wherein the colorant-specific absorption and substrate cooperate to produce a static transmission spectrum with at least one stop band substantially centered between 550 nm and 605 nm, the transmissive optical device exhibiting metamerism control such that a cosmetic tint has a white point shift within 0.1 in 1976 CIE LUV color space when an illuminant changes (1) from CIE D65 to CIE D75, and (2) from CIE D65 to CIE D55.

A transmissive optical device for enhancing human color vision, said device comprising:

• a substrate;
• and
• one or more colorant layers applied at least one of onto and into the substrate, the one or more colorant layers comprising at least two colorants with one colorant having a peak absorbance at approximately 595 nm, the colorants created based on colorant-specific absorption spectra as defined by selected concentrations,
• wherein the colorant-specific absorption and substrate cooperate to produce a static transmission spectrum with at least one stop band substantially centered between 550 nm and 605 nm, the transmissive optical device exhibiting metamerism control such that a cosmetic tint has a white point shift within 0.1 in 1976 CIE LUV color space when an illuminant changes (1) from CIE D65 to CIE D75, and (2) from CIE D65 to CIE D55.