Described are visible light absorbing compounds. The compounds have a visible light absorption maximum between 430 and 480 nm and a full width half maximum (FWHM) at the visible light absorption maximum of at least 35 nm and up to 150 nanometers, wherein the compounds are photostable. The compounds are also thermally stable. The compounds substantially mimic the visible light absorbance properties of macular pigment while remaining photostable and thermally stable. The compounds may be used in a variety of articles, including ophthalmic devices.

Described are visible light absorbing compounds. The compounds have a visible light absorption maximum between 430 and 480 nm and a full width half maximum (FWHM) at the visible light absorption maximum of at least 35 nm and up to 150 nanometers, wherein the compounds are photostable. The compounds are also thermally stable. The compounds substantially mimic the visible light absorbance properties of macular pigment while remaining photostable and thermally stable. The compounds may be used in a variety of articles, including ophthalmic devices.

A system, method for creating an optical device, and a device to inhibit short- and medium-visible wavelengths and to color neutralize such device 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 transmission 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 attenuation spectra as defined by selected concentrations.

A system, method for creating an optical device, and a device to inhibit short- and medium-visible wavelengths and to color neutralize such device 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 transmission 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 attenuation spectra as defined by selected concentrations.

Provided is a contact lens system that comprises: a contact lens containing a photosensitive chromophore and a package surrounding the contact lens. The photosensitive chromophore has at least one active wavelength between 250 and 400 nanometers and at least one active wavelength between 400 and 450 nanometers. The package has a transmittance of no more than 99 percent at each active wavelength.

Provided is a contact lens system that comprises: a contact lens containing a photosensitive chromophore and a package surrounding the contact lens. The photosensitive chromophore has at least one active wavelength between 250 and 400 nanometers and at least one active wavelength between 400 and 450 nanometers. The package has a transmittance of no more than 99 percent at each active wavelength.

A security marking has a physically unclonable function (PUF) wherein the PUF includes a disordered multilayer photonic crystal structure having an electromagnetic transmission and/or reflection spectrum and/or spectra upon receipt of electromagnetic radiation within a photonic bandgap region of the structure that is unique to the structure.

A security marking has a physically unclonable function (PUF) wherein the PUF includes a disordered multilayer photonic crystal structure having an electromagnetic transmission and/or reflection spectrum and/or spectra upon receipt of electromagnetic radiation within a photonic bandgap region of the structure that is unique to the structure.

A lens having high quality even after long-term storage can be manufactured using a curable composition containing a compound represented by General Formula A, a compound represented by General Formula B, and a polymerization initiator, in which a ratio of a substance amount of the compound represented by General Formula B to a substance amount of the compound represented by General Formula A is 1 to 25 mol %.

##STR00001##

In the Formulas, each portion surrounded by a broken line of Ar.sup.11, Ar.sup.12, and Ar.sup.13 represents that each of the portions may form a fused ring; L.sup.1 and L.sup.2 each represent a single bond, —O—, or the like; Sp.sup.1 and Sp.sup.2 each represent a single bond or a divalent linking group; Pol.sup.1 and Pol.sup.2 each represent a polymerizable group; R.sup.3 to R.sup.6 each represent a substituent; and q, r, v, and w are each an integer of 0 to 4.

A lens having high quality even after long-term storage can be manufactured using a curable composition containing a compound represented by General Formula A, a compound represented by General Formula B, and a polymerization initiator, in which a ratio of a substance amount of the compound represented by General Formula B to a substance amount of the compound represented by General Formula A is 1 to 25 mol %.

##STR00001##

In the Formulas, each portion surrounded by a broken line of Ar.sup.11, Ar.sup.12, and Ar.sup.13 represents that each of the portions may form a fused ring; L.sup.1 and L.sup.2 each represent a single bond, —O—, or the like; Sp.sup.1 and Sp.sup.2 each represent a single bond or a divalent linking group; Pol.sup.1 and Pol.sup.2 each represent a polymerizable group; R.sup.3 to R.sup.6 each represent a substituent; and q, r, v, and w are each an integer of 0 to 4.