This invention relates to multi-color electrochromic devices and to methods of use thereof. The invention also relates to a process of preparation of the electrochromic devices.

Color-selective waveguides, methods for fabricating color-selective waveguides, and augmented reality (AR)/mixed reality (MR) applications including color-selective waveguides are described. The color-selective waveguides can advantageously reduce or block stray light entering a waveguide (e.g., red, green, or blue waveguide), thereby reducing or eliminating back-reflection or back-scattering into the eyepiece.

An optical film includes a film body defining an upper surface, a lower surface opposite to the upper surface, and at least one outer edge extending between the upper and lower surfaces. The optical film also includes at least one energy radiated discolored portion formed in the film body. The at least one energy radiated discolored portion includes a radiation absorbing material.

A method of fabricating a multi-color display includes dispensing a first photo-curable fluid through apertures in a first mask into a first plurality of wells in a display. A first plurality of light emitting diodes are activated to illuminate and cure the first photo-curable fluid to form a first color conversion layer over each of the first plurality of light emitting diodes, and an uncured remainder of the first photo-curable fluid is removed. A second photo-curable fluid is dispensed through apertures in a second mask into a second plurality of wells in the display. A second plurality of light emitting diodes are activated to illuminate and cure the second photo-curable fluid to form a second color conversion layer over each of the second plurality of light emitting diodes. An uncured remainder of the second photo-curable fluid is removed.

A method of fabricating a multi-color display includes forming a host matrix over a display having an array of light emitting diodes. The host matrix is sensitive to ultraviolet light. A first plurality of light emitting diodes in a first plurality of wells are activated to illuminate a portion of the host matrix to cause the portion of the host matrix to develop internal porous structures. A first photo-curable fluid including a first color conversion agent is dispensed. The first plurality of light emitting diodes in the first plurality of wells are activated to illuminate and cure the first photo-curable fluid to form a first color conversion layer over each of the first plurality of light emitting diodes, and an uncured remainder of the first photo-curable fluid is removed.

A louver includes light shielding portions made of a light shielding material. The light shielding portions are provided inside a plate-like base portion made of a light transmitting material. In a plan view of a main surface of the plate-like base portion, the light shielding portions are arranged at a predetermined interval so as to sandwich a light transmitting portion. A width of each of the light shielding portions is 9% or less of the predetermined interval between the light shielding portions.

Various embodiments of the present invention provide systems, methods, and processes for constructing a contact lens. In one embodiment, a contact lens assembly is provided, comprising: a curved polymer polarizer with an aperture; a lenslet disposed inside the aperture, wherein the lenslet enables imaging near objects; and a filter attached to the lenslet. In further embodiments, a method for fabricating a flexible contact lens is provided, comprising: fabricating an element having an extrusion; providing a front concave mold, wherein the front mold has an intrusion to accommodate the extrusion of the optical element; affixing the extrusion of the optical element to the intrusion of the front mold; attaching a back convex mold to the front concave mold, thereby forming a mold cavity; and filling the mold cavity with a pre-polymerized liquid, whereby upon polymerization, the pre-polymerized liquid forms the flexible contact lens and the optical element is partially encapsulated within the 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.

Color-selective waveguides, methods for fabricating color-selective waveguides, and augmented reality (AR)/mixed reality (MR) applications including color-selective waveguides are described. The color-selective waveguides can advantageously reduce or block stray light entering a waveguide (e.g., red, green, or blue waveguide), thereby reducing or eliminating back-reflection or back-scattering into the eyepiece.

The present invention relates to an optical article having a substrate made of an optical material comprising a polymer matrix and at least one near infrared absorber, wherein T.sub.VIS is higher than or equal to 70%, T.sub.NIR is lower than or equal to 85%, T.sub.NIR and T.sub.VIS being respectively the average optical transmittance in the 780-1400 nm and in the 380-780 nm wavelength range for the optical material through a 2 mm thick layer of said optical material. This optical article can be used to protect from noxious infrared light.