The present invention relates to a reactor comprising a vessel (1) for containing: • a mass to be treated, and • at least one lighting device (2a, 2b) intended to promote the treatment of said mass, characterized in that each lighting device (2a, 2b) comprises a light diffuser including at least one micro-etched plate (211) which is transparent to light radiation.

A resin reflective film, which containing two or more kinds of regions having different refractive indexes from each other, in which a film thickness of the resin film 20 to 5,000 .Math.m, and a total reflectance is 60% or more and a diffuse reflectance is 60% or more for deep ultraviolet rays having a wavelength of 220 to 300 nm.

Provided are a liquid composition for forming an anti-glare film and a method for producing an anti-glare-film-coated substrate that enable formation of an anti-glare-film-coated substrate preventing reflection on a rough concave-convex surface, such as an anti-glare surface, with a small amount of liquid. A liquid composition for forming an anti-glare film contains a silica precursor and a liquid medium. The liquid medium contains water, a first organic solvent, and a second organic solvent. The first organic solvent is made of an organic solvent having a boiling point of 90° C. or lower and capable of forming an azeotropic mixture having a content mass ratio of 15 or less to water. The azeotropic mixture has an azeotropic point of 90° C. or lower. A content mass ratio of the first organic solvent to water making up part of the liquid medium is equal to or larger than the content mass ratio of the azeotropic mixture to water. The second organic solvent is made of an organic solvent having a boiling point of 90° C. or higher and a content thereof in the liquid medium is not less than 0% and not more than 18% by mass.

A component for diffusing light emitted by a laser source in a lidar system of an autonomous vehicle. The component comprises a component body. The component body comprises an aspheric lens shaped to direct laser illumination from a laser source in the lidar system to produce a particular illumination profile by directing a portion of the laser illumination to a part of a field of view of the lidar system. The component body further comprises an attachment structure configured for securing the component body to a printed circuit board of the lidar system. The attachment structure is further configured to space a central axis of the aspheric lens a distance from a central axis of the laser source in the lidar system.

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 falling within a range from 6 to 10, 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 30% or less, which is measured with 60-degree specular gloss, a value of transmission image clarity of 60% or less, which has an optical comb of 0.5 mm, and a haze value of 50% or less. Consequently, satisfactory anti-glare property can be provided while appropriately suppressing sparkle on the display.

A microstructured article includes a nanovoided layer having opposing first and second major surfaces, the first major surface being microstructured to form prisms, lenses, or other features. The nanovoided layer includes a polymeric binder and a plurality of interconnected voids, and optionally a plurality of nanoparticles. A second layer, which may include a viscoelastic layer or a polymeric resin layer, is disposed on the first or second major surface. A related method includes disposing a coating solution onto a substrate. The coating solution includes a polymerizable material, a solvent, and optional nanoparticles. The method includes polymerizing the polymerizable material while the coating solution is in contact with a microreplication tool to form a microstructured layer. The method also includes removing solvent from the microstructured layer to form a nanovoided microstructured article.

A light diffusion member includes a substrate that has optical transparency, a light diffusion portion that is formed with a prescribed height on one surface of the substrate, a light shielding layer that is formed with a thickness less than the height of the light diffusion portion in another region of the one surface of the substrate than the light diffusion portion, and an antiglare layer that is formed on the other surface of the substrate. The light diffusion portion includes a light emission end surface that contacts with the substrate, a light incident end surface that faces the light emission end surface and has a larger area than an area of the light emission end surface, and a side surface that is formed between the light emission end surface and the light incident end surface, and the antiglare layer includes a binder layer and plural light diffusion particles that are dispersedly arranged in the binder layer.

A light diffuser includes a main body and first fillers. The first fillers are dispersed in the main body. The first fillers include at least one of ZrO.sub.2, Nb.sub.2O.sub.5, Ta.sub.2O.sub.5, Si.sub.xN.sub.y, Si, Ge GaP, InP, and PbS, and a diameter of each of the first fillers is in a range from 0.1 μm to 1 μm.

To provide a relief structure having a simple structure, capable of being manufactured with ease and at low cost, and capable of improving visibility, and a security medium having the relief structure.

A relief structure includes a grating structure part having a grating formed at a predetermined angle. The grating structure part includes a scattering structure part having a light scattering property.

Provided is a sheet-form transparent molding for use for a transparent screen, satisfying both visibilities of a projected light and a transmitted light by anisotropically scattering and reflecting the projected light emitted from a light source. A sheet-form transparent molding according to the present invention comprises a transparent light scattering layer comprising a resin and bright flake-form microparticles.