An optical product includes a base, and an optical film formed on a film-formation surface thereof. The optical film has an Al.sub.2O.sub.3 layer made of Al.sub.2O.sub.3 and disposed on the base side, and an SiO.sub.2 layer made of SiO.sub.2 and having a minutely uneven structure. The method for manufacturing the optical product includes forming, on the base, an Al-based manufacture intermediate film made of aluminium, an aluminium alloy, or an aluminium compound, and immersing the base having the Al-based manufacture intermediate film in an aqueous solution of silica. The silica in the aqueous solution has a concentration of not greater than 10 mg/l.

Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise a spatial light modulator operatively coupled to an image source for projecting light associated with one or more frames of image data, and a variable focus element (VFE) for varying a focus of the projected light such that a first frame of image data is focused at a first depth plane, and a second frame of image data is focused at a second depth plane, and wherein a distance between the first depth plane and the second depth plane is fixed.

Example systems may include one or both of a light emitter and a light receiver, and an optical filter. The optical filter may include a wavelength selective scattering layer configured to scatter visible light. The optical filter may include a wavelength selective reflecting layer having a predetermined transmission band configured to compensate for a color deviation. The optical filter may include a broadband reflecting layer having a predetermined reflection band configured to compensate for a color deviation. The optical filter may include a low-index layer configured to reduce a color deviation in light emitted by the light emitter or received by the light receiver. The wavelength selective scattering layer may include nanoparticles dispersed in a binder, wherein the ratio of the nanoparticles to the binder by weight is at least 50%. Example articles may include example optical filters.

An optical device, such as a diffuser, can include a substrate; and a diffuser surface, in which the diffuser surface has an index of refraction greater than about 1.8. A method of making and using the optical device is also disclosed.

The present invention provides a quantum dot composite brightness enhancement film and a method for manufacturing same, relating to the field of optical thin films. The quantum dot composite brightness enhancement film includes a quantum dot film layer formed by a back coating layer, a substrate layer, a first barrier layer, a quantum dot layer, and a second barrier layer which are sequentially attached, a composite brightness enhancement film layer formed by a diffusion layer, a core layer, and a prism layer which are sequentially attached, and an Optically Clear Adhesive (OCA) layer connecting the second barrier layer and the diffusion layer. The quantum dot composite brightness enhancement film of the present invention is configured to be of the multi-layer film structure; the total thickness of the quantum dot composite brightness enhancement film is reduced by omitting one substrate layer, thereby facilitating light-weighting when the quantum dot composite brightness enhancement film is applied to a backlight module; moreover, multiple coating operations on the quantum dot layer are avoided, thereby reducing process defects, and effectively improving the performance of the quantum dot composite brightness enhancement film.

A method is provided that integrated a unique set of structural features for concealing self-powered sensor and communication devices in aesthetically neutral, or camouflaged, packages that include energy harvesting systems that provide autonomous electrical power to sensors, data processing and wireless communication components in the portable, self-contained packages. Color-matched, image-matched and/or texture-matched optical layers are formed over energy harvesting components, including photovoltaic energy collecting components. Optical layers are tuned to scatter selectable wavelengths of electromagnetic energy back in an incident direction while allowing remaining wavelengths of electromagnetic energy to pass through the layers to the energy collecting components below. The layers uniquely implement optical light scattering techniques to make the layers appear opaque when observed from a light incident side, while allowing at least 50% and as much as 80+%, of the energy impinging on the energy or incident side to pass through the layer.

An anti-glare film is attached on a surface of a display, and includes an anti-glare layer. The anti-glare layer is set to have a sparkle value of 10 or less, which is defined based on a value of a standard deviation of luminance distribution of the display under a state in which the anti-glare film is attached on the surface of the display, a value of specular gloss of 40% or less, which is measured with 60-degree specular gloss, and a value of transmission image clarity of 40% or less, which has an optical comb of 0.5 mm. Consequently, satisfactory anti-glare property can be provided while appropriately suppressing sparkle on the display.

A light transmissive structure includes a light transmissive substrate having first and second opposing faces, and an array of microprism elements on the first face. Each microprism element includes a first inclined surface disposed at a first inclined angle relative to the second face, and a second inclined surface disposed at a second inclined angle relative to the second face. The first inclined angle is less than the second inclined angle, and a peak angle between the first inclined surface and second inclined surface is in the range of about 70 degrees to about 100 degrees. The second inclined surface has a convex curvature when viewed from angles perpendicular thereto. The light transmissive structure is configured to receive light from a light source facing the first face in a first direction and redistribute light emerging from the second face in a second direction different from the first direction.

According to one or more embodiments described herein, a coated article may comprise a transparent substrate and an optical coating. The transparent substrate may have a major surface, and the optical coating may be disposed on the major surface of the transparent substrate and form an air-side surface. The optical coating may comprise one or more layers of deposited material and one or more light-altering features which may reduce oscillations in the reflectance spectrum of the coated article. The coated article may exhibit a maximum hardness of about 8 GPa or greater, have an average photopic transmittance of about 50% or greater, and exhibit an angular color shift of less than about 10 from a reference illumination angle in a range of 0-10 degrees to an incident illumination angle in a range of 30-60 degrees relative to the air-side surface.

A composite laminate makes it possible to obtain transparent layered elements with diffuse reflection that can be used in esthetic and/or antireflection glazings, or even in transparent projection screens. The composite laminate includes an organic polymeric support, a layer and a first transparent organic polymeric substrate. The dielectric layer is disposed between the support and the substrate. The dielectric layer has a refractive index greater than the refractive index of the first substrate. The adhesive energy between the dielectric layer and the support is less than the adhesive energy between the dielectric layer and the substrate.