A laminate, includes: a first layer, a first material of the first layer having a first refractive index, the first layer including a first surface; a first microstructure layer including a first microstructure pattern formed on a first surface of the microstructure layer, a first microstructure material of the first microstructure layer having a first microstructure material refractive index, the first microstructure pattern having first repeating structures with a first predetermined periodicity, the microstructure layer being disposed on the first surface of the first layer; a second layer, a second material of the second layer having a second refractive index, the second layer being disposed adjacent to the first surface of the first microstructure layer; and a third layer, a third material of the third layer having a third refractive index, the third layer being disposed adjacent to the second layer on a side opposite the microstructure layer.

A laser protection eyewear lens includes a lens substrate comprising an embedded wavelength filter having a first filter function, and a multi-layer dielectric filter applied to at least one of an inside and an outside surface of the lens substrate that comprises a second filter function having at least one center wavelength and bandwidth. The first filter function of the embedded wavelength filter and the second filter function of the multilayer dielectric filter produce a combined filter function that attenuates light reflecting off the multi-layer dielectric filter.

The invention relates to an ophthalmic lens configured to exhibit a clear state and optionally at least one darker state. The lens has a front and a rear surface (Cx and Cc) respectively defining a front and a rear side of the lens, the lens having in the clear state (FS) a visual transmittance at an AOI of 0° greater than 81%, the lens comprising: - a substrate having a front and a rear main face respectively adjacent the front and rear surface, and - at least one multilayered interferential coating comprising a front multilayered interferential coating which surmounts the front main face and which comprises at least one absorbing front layer in the visible region. In said clear state, a total visual reflectance for the lens Rv_t_rear from the rear and front surface, measured from the rear side at an AOI of 35°, is less than 5.0%, and in said clear state, the difference R.sub.v_t_front - R.sub.v_t_rear of the total visual reflectance from the rear and front surface, measured from the front side at an AOI of 15°, and of from the rear and front surface, measured from the rear side at an AOI of between 0 and 15°, is greater than 1.0 %.

The present invention relates to a transparent ophthalmic lens comprising a substrate having a main front face and a main rear face, said main front face being coated with a multilayer interference coating, preferably an anti-reflection coating, comprising a stack of at least one layer have a refractive index greater than 1.6 and at least one layer having a refractive index less than 1.55, characterised in that: the mean reflection factor on said main front face coated with said interference coating, between 350 nm and a wavelength between 380 and 400 nm, preferably between 350 and 380 nm, weighted by the function W(I), is greater than or equal to 35% for at least one angle of incidence between 0° and 17°; the light reflection factor at 400 nm on said main front face coated with said interference coating is less than or equal to 35% for at least one angle of incidence between 0° and 17°.

The detailed characteristics of the red fluorescence of the human lens—that occurs at the seventh decade of life—is recognized as an example of evolutionary photobiomodulation for repair of the retina, and then used as a paradigm for extending current parametric values for reproducible photobiomodulation. The new photobiomodulation parameters involve relative intensities for wavelength bands within the range of 600 nm to 900 nm.

This optical article comprises a base material having at least one face coated with an interferential multilayer coating providing either antireflective or high reflective properties. The coating comprises at least one layer of light absorbing material which has an adjustable composition and thickness, such that the visible light mean transmission factor of the coating is controllable to have a value between 95% and 5%.

A laser protection lens includes a multilayer interference coating applied to at least one of an inside and an outside surface of an optically transparent material. The multilayer interference coating has a spectral filter profile with at least a 20 dB reduction of optical transmission for at least two different center wavelengths of lasers, while having a transmittance color difference greater than 40 ΔE.sub.Yu′v′ for discrimination color difference of red, green, and yellow indicator lights, and having spectral transmittance that passes light detected by l-cones of an eye, while attenuating light detected by m-cones and s-cones of the eye so as to improve visual acuity.

Some embodiments provide a lens including a lens body and an optical filter configured to attenuate visible light in certain spectral bands. At least some of the spectral bands can include spectral features that tend to substantially increase the colorfulness, clarity, and/or vividness of a scene. In certain embodiments, eyewear incorporates an optical filter that enhances chroma within one or more spectral bands. In some embodiments, a wearer of the eyewear can perceive the increase in chroma when viewing at least certain types of scenes.

Disclosed are a method and device for manufacturing an ophthalmic lens for eyeglasses intended to be placed in front of an eye of a wearer, the ophthalmic lens having a desired optical function including a dioptric function adapted to a prescription of the wearer. The method includes: providing an optical element made of a first material having a first refractive index, the optical element being intended to be modified to manufacture the ophthalmic lens; providing data relative to the modification of the optical element enabling to obtain the desired optical function; determining at least one zone in the first material based on data; and modifying the refractive index of the first material to form a pattern in the determined zone with focused femtosecond laser pulses according to data so as to obtain an ophthalmic lens having the desired optical function.

An optical filter for eyewear and other viewing devices improves response to certain amber and red spectral emissions particularly from amber and red LEDs, without materially reducing appearance and discernment of pertinent items and signals present during driving activity, utilizes a narrow bandpass light filter in a “tuned” manner to pass portions of the visible spectrums of amber and red LED emissions to a high degree, while simultaneously reducing, but not effectively eliminating transmission of out-of-band spectral light. As a result, the amber and red LED emissions (signal) are selectively emphasized and out-of-band transmittance of background light (noise) are attenuated, thereby increasing the signal-to-noise ratio of the amber and red LED light sources found in traffic signals and vehicles. To a lesser degree, the same effect is achieved for filtered, amber and red incandescent sources as well.