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.

The invention relates to a weatherproofing arrangement having a textile sheet material which forms a screen against the effects of weather, in particular against solar radiation and/or rain, and has warp threads and weft threads connected to one another in the manner of latticework. In order to achieve particular protective functions, it is proposed for the warp threads and weft threads to bound elongate-rectangular latticework openings, wherein the length of these openings is at least 10 times the width thereof, and wherein the width of the openings is from between 0.1 and 0.001 mm.

Dual-sided optical films have extended split spreading structures formed on one major surface, and extended prisms formed on an opposite major surface. One portion of each split spreading structure has a low light spreading characteristic, and another portion has a high light spreading characteristic. For each split spreading structure, the low light spreading portion may be disposed alongside the high light spreading portion. The split spreading structures may be arranged in a one-to-one correspondence with the prisms. Light that enters a given prism from one inclined surface thereof can be associated primarily with light transmitted through the low light spreading portion of the split spreading structure, and light that enters the given prism from the other inclined surface thereof can be associated primarily with light transmitted through the high light spreading portion.

A display device includes a first substrate having a display region and a peripheral region, a display structure in the display region, a second substrate parallel to the first substrate, the second substrate including a light scattering structure in the display region, the light scattering structure being configured to scatter light generated in the display structure, and a shielding member adjacent to the light scattering structure.

Incident optical signals propagate within a diffuser substrate and impinge upon an optical diffuser within the diffuser substrate or on its output surface. The optical diffuser redirects or transforms respective portions of each incident signal into corresponding forward- and backward-directed optical signals. The backward-directed signals are redirected or transformed into additional incident signals, and so on. The forward-directed optical signals collectively form the optical output of an illumination source that exhibits reduced speckle. The illumination source can include multiple laser sources formed on or attached to an input surface of the diffuser substrate.

One embodiment of the present invention provides a light diffusion film, including: 100 parts by mass of a polycarbonate resin (A); 1 to 10 parts by mass of organic fine particles (B); and 0.01 to 0.5 parts by mass of inorganic fine particles (C), wherein the inorganic fine particles (C) have an average particle size of less than 1 μm and a refractive index at a wavelength of 589 nm of 2.00 or more.

An optical sheet is formed by laminating, by co-extrusion molding, a first layer containing a polycarbonate resin, a second layer containing a polyamide resin, and a third layer, wherein the second layer is laminated between the first layer and the third layer, the first layer and second layer, and the second layer and third layer can each be peeled at the interface, and the outer surface of the first layer has a fine grooved structure. The optical sheet, which is provided with a plurality of layers in such a way, is capable of retaining, a sufficient amount of heat in a laminate in a mold since the entire sheet can be made thick during melt extrusion molding, and is able to improve the transferability of the fine grooved structure. In addition, the optical sheet can be made thinner by using only the peeled first layer as an optical sheet.

An anti-reflection member has reflection characteristics wherein a specular reflection component of reflected light is 0.15% or less and a diffuse reflection component of the reflected light is in a range from 0.25% to 0.65%, inclusive.

An anti-reflection structure having multiple bottomed tubular light absorption units that each have a bottom part having a substantially circular outer edge part and a wall part that is arranged upright along the outer edge part, an opening being formed above the bottom part, the anti-reflection structure satisfying specific conditions.

An illumination system is configured to provide an illumination beam. The illumination system includes at least one light source, a composite unit and an actuator. The at least one light source is configured to provide at least one light beam. The composite unit includes a diffusion surface and an optical surface opposite to each other, wherein the composite unit is disposed on a transmission path of the at least one light beam and configured to enable the at least one light beam to pass through. The actuator is connected to the composite unit for driving the composite unit to move along at least one direction, and the at least one direction is perpendicular to a normal direction of a plane on which the composite unit is located. A projection apparatus including the illumination system is also provided.