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 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.

The present invention relates to an optical article comprising: —a substrate, —one colouring component, so as to colour the substrate, and —coated on the substrate (a), an asymmetric interferential multilayer stack comprising at least one absorbing layer which absorbs in the visible region at a wavelength ranging from 380 to 780 nm.

An ophthalmic set for myopia progression control comprises spectral filtering means arranged for being effective on light that enters a user's eye. The spectral filtering means selectively reduce blue-green light intensity, and possibly also amber light intensity. Preferably, said spectral filtering means are combined with wavefront modifying means within the ophthalmic set for increased efficiency in slowing-down myopia progression for the user. In possible embodiments, the spectral filtering means and wavefront modifying means are combined in spectacle lenses (1, 2), and the wavefront modifying means are comprised of microlenses (21) or light-diffusing elements.

A spectacle lens including a lens base material and a multilayer film provided on each surface of an eyeball-side surface and an object-side surface of the lens base material, in which a normal incidence mean reflectance R.sub.eye in a wavelength range of 430 to 450 nm measured on the eyeball-side surface of the spectacle lens and a normal incidence mean reflectance R.sub.object in a wavelength range of 430 to 450 nm measured on the object-side surface of the spectacle lens each are more than 0%, and R.sub.eye is greater than R.sub.object.

In an optical filter for sunglasses, having a transmittance of less than 20% for light wavelengths from 400 nm to 650 nm, the transmission spectrum comprises a local transmission maximum in each of the light wavelength ranges between 440 nm and 470 nm and also between 570 nm and 590 nm and a local transmission maximum in the light wavelength range between 600 nm and 620 nm, wherein the transmittance below the connecting line of the local transmission maximum between 440 nm and 470 nm and the local transmission maximum between 570 nm and 590 nm has an essentially convex overall curve with a breadth of variation less than 8%.

A lens module includes a base member, a first hard coating layer, a filter, a first water-repellent layer, a second hard coating layer, a light absorption layer and a second water-repellent layer. The base member allows at least a portion of incident light to transmit and is dyed by a dye material. The first hard coating layer is disposed on the base member and include silicon dioxide. The filter is disposed on the first hard coating layer and has a light transmissivity of 10% or lower for wavelengths of 555 nm or greater and 565 nm or smaller of the incident light. The first water-repellent layer is disposed on the filter and includes a hydrophobic material. The second hard coating layer is disposed underneath the base member and includes silicon dioxide. The light absorption layer is disposed underneath the second hard coating layer, is configured to absorb at least a portion of the incident light, and includes silicon dioxide and zirconium oxide. The second water-repellent layer is disposed underneath the light absorption layer and includes a hydrophobic material.

The present invention proposes an anti UV420 lens, wherein it at least has a substrate at least stacked with a multi-film layer formed by stacking a first antireflection (AR) film layer, silicon dioxide colorless transparent film layer, zirconium dioxide film, trititanium pentoxide (Ti3O5) layer and silicon-aluminum mixture film layer, a waterproof layer is at least stacked on a surface of the multi-film layer, and a second antireflection layer and anti-blue light film layer are at least electroplated on a surface of the anti UV420 lens.

This ophthalmic lens for improving vision has a light cut factor CutLED between 32% and 90%, for wavelengths ranging from 380 nm to 500 nm, defined by formula (I), where Σ is a discrete or continuous sum operator, λ is the wavelength in nm, lens T % is the spectral transmittance of the lens in % and LED emission is the spectral distribution of a white light emitting diode; a mean luminous transmittance in the visible range higher than or equal to 75%; and light transmitted through the ophthalmic lens has a colorimetric value b*, as defined in the colorimetric CIE L*a*b* with illuminant D65, lower than 25.

Disclosed is an optical article including a substrate having at least one main face coated with a reflective coating including a stack of at least one high refractive index layer having a refractive index higher than 1.55 and at least one low refractive index layer having a refractive index of 1.55 or less, in which the thicknesses of the layers in the reflective coating have been optimized according to specific design rules in order to boost the abrasion resistance of the optical article.

The spectacle lens includes a lens substrate including a blue light absorbing compound, and a multilayer film including a metal layer having a film thickness of 1.0 nm to 10.0 nm, wherein a blue light cut ratio is 21.0% or more, an average reflectance in a wavelength range of 400 nm to 500 nm measured on an object-side surface is 1.00% or less, and an average reflectance in a wavelength range of 400 nm to 500 nm measured on an eyeball-side surface is 1.00% or less.