Optical device for enhancing human color vision with improved cosmetic appearance
A system, method for creating an optical device, and a device to enhance human color vision are disclosed. The system, method for creating the optical device, and device include a substrate, a plurality of thin film layers provided on the substrate, the plurality of thin film layers including materials creating thin film-specific reflectance spectra based on selected pluralities of materials each having their on respective refractive index, and/or a plurality of colorant layers applied to the plurality of thin film layers, the plurality of colorant layers including at least one colorant, the colorant created based on colorant-specific absorption spectra as defined by selected concentrations.
1. A color vision enhancing optical device, the optical device comprising:
one or more optical elements including at least one absorptive dye, the one or more optical elements configured to create a transmission spectrum of the optical device, including at least one pass-band with a center between 480 nm and 570 nm, the at least one pass-band having its peak transmission at a wavelength between 610 nm and 780 nm, and at least one stop-band with a center between 540 nm and 620 nm,
the one or more optical elements further creating a single-pass cosmetic tint and a double-pass cosmetic tint via a CIE F2 illuminant to have both b-values that are each at least 1 distance unit less than the corresponding b-values of the corresponding single-pass and double-pass cosmetic tints via at least one of a CIE D65 illuminant and a CIE F11 illuminant in a 1976 CIE LAB color space.
2. The optical device of claim 1 wherein the one or more optical elements further creating a red-green lightness-difference for red and green Munsell colors between −5.0 and 5.0, excluding from −0.1 to 0.1, via one or more of CIE D65, CIE F2 and CIE F11 illuminants in a 1976 CIE LAB color space.
3. The optical device of claim 1 , wherein the one or more optical elements further creating a lightness-independent red-green color difference increase of between −80% and 120%, excluding from −2% to 2%, for red and green Munsell colors seen through the optical device, via one or more of CIE D65, F2 and F11 illuminants in a 1976 CIE LAB color space.
4. The optical device of claim 1 , wherein the one or more optical elements comprise at least one polarizing filter.
5. The optical device of claim 1 , wherein the one or more optical elements further limit the at least one stopband between 560 nm and 610 nm to having a peak absorbance of at least 30% and having a full width at half maximum (FWHM) of at least 10 nm.
6. The optical device of claim 1 , wherein the optical device takes the form of at least one of a lens, sunglasses, ophthalmic, glass, contact lens, optical filters, displays, windshields, intraocular lens, human crystalline lens, windows, and plastics.
7. A color vision enhancing optical device, the optical device comprising:
one or more optical elements including at least one absorptive dye, the one or more optical elements configured to create a transmission spectrum of the optical device, including a blue stop-band with a center approximately between 465 nm and 475 nm and a red stop-band with a center approximately between 660 nm and 675 nm, the red stop-band having a valley transmission that is at least approximately 25% higher than that of the blue stop-band,
the one or more optical elements creating a single-pass cosmetic tint and a double-pass cosmetic tint via a CIE F2 illuminant having both b-values that are each at least 1 distance unit less than the corresponding b-values of the corresponding single-pass and double-pass cosmetic tints via at least one of a CIE D65 illuminant and a CIE F11 illuminant in a 1976 CIE LAB color space.
8. The optical device of claim 7 , wherein the one or more optical elements further creating at least one additional stop-band in the transmission spectrum of the optical device, the at least one stop-band being centered between 540 nm and 620 nm.
9. The optical device of claim 7 , wherein the one or more optical elements further creating a red-green lightness-difference for red and green Munsell colors between −5.0 and 5.0, excluding from −0.1 to 0.1, via one or more of a CIE D65, CIE F2 and CIE F11 illuminants in a 1976 CIE LAB color space.
10. The optical device of claim 7 , wherein the one or more optical elements further creating a lightness-independent red-green color difference increase between −80% and 120%, excluding from −2% to 2%, for red and green Munsell colors, via one or more of CIE D65, F2 and F11 illuminants in a 1976 CIE LAB color space.