A unitary radome layer assembly is provided and includes a first nanocomposite formulation and a second nanocomposite formulation. The first and second nanocomposite formulations are provided together in a unitary radome layer with respective distribution gradients.

The invention relates to a diffuser 3 intended to be facing a light source 1 comprising a transmission layer 10 and a diffusion layer 22, 23 intended to diffuse a light transmitted by the light source, the diffuser being characterised in that the diffusion layer comprises a plurality of metal structures 200, 200a, 200b, called metal nanostructures, having dimensions less than a wavelength of the light transmitted, said metal nanostructures having varied sizes and being distributed within the diffusion layer such that adjacent metal nanostructures have between them, varied distances and preferably less than the wavelength of the light transmitted. The invention also relates to a method for manufacturing such a diffuser, and a display system comprising such a diffuser.

An optical system including a lighting component and a switchable diffuser in optical communication with the lighting component. The optical system may further include a low absorbing optical component. At least one outer surface of the switchable diffuser and/or the low absorbing optical component includes light redirecting structures. When the switchable diffuser is in a first state and the optical system produces a light output, the light redirecting structures are configured to increase the full width at half-maximum (FWHM) of the light output of the optical system in at least one direction by at least 5 degrees relative to that of an otherwise equivalent optical system that does not include the light redirecting structures.

Provided is a laser device, comprising a laser light source, a collimating lens that collimates the light output from the laser light source, and a diffuser plate that diffuses the light from the laser light source before collimating the light.

An optical system including a lighting component and a switchable diffuser in optical communication with the lighting component. The optical system may further include a low absorbing optical component. At least one outer surface of the switchable diffuser and/or the low absorbing optical component includes light redirecting structures. When the switchable diffuser is in a first state and the optical system produces a light output, the light redirecting structures are configured to increase the full width at half-maximum (FWHM) of the light output of the optical system in at least one direction by at least 5 degrees relative to that of an otherwise equivalent optical system that does not include the light redirecting structures.

A substrate for a display article is described herein including (a) a primary surface; and (b) a textured region disposed at the primary surface, the textured region comprising: (i) one or more higher surfaces residing at a higher mean elevation parallel to a base-plane disposed below the textured region extending through the substrate; (ii) one or more lower surfaces residing at a lower mean elevation parallel to the base-plane; and (iii) surface features providing at a least a portion of either or both of (i) the one or more higher surfaces and (ii) the one or more lower surfaces. The surface features can include larger surface features and smaller surface features, either or both providing one or more surfaces of the substrate that reside at one or more intermediate mean elevations parallel to the base-plane between the higher mean elevation and the lower mean elevation.

An optically diffusive film includes an optical substrate layer with opposing first and second major surfaces; and an optical layer disposed on the second major surface of the optical substrate layer and including a structured major surface having a plurality of spaced apart elongated structures elongated along a same first direction and arranged at a substantially uniform density, each elongated structure including a peak such that, in a plane of a cross-section of the elongated structure that is parallel to the first direction and comprises the peak, the elongated structure has a substantially flat top region; wherein for substantially normally incident light and a visible wavelength range and an infrared wavelength range, the optical substrate layer has an average total transmittance or reflectance of greater than about 60% in the visible wavelength range and an average specular transmittance of greater than about 60% in the infrared wavelength range.

An optical composite sheet is disclosed. In the optical composite sheet, optical functional elements such as a prism sheet and a light diffusion layer are combined, and a light absorbing layer that selectively absorbs light of a specific wavelength band is inserted, so that the optical performance and color gamut can be enhanced as compared with the prior art. In particular, the color transmittance of the optical composite sheet with respect to wavelength measured for each viewing angle satisfies a specific relationship, whereby it is possible to effectively reduce the color deviation with respect to the viewing angle.

The present disclosure provides a display film. The display film includes a substrate and a film stack provided on the substrate, wherein the film stack sequentially includes: a first high-refractive-index layer, a transflective coating layer and a second high-refractive-index layer; and the transflective coating layer is made of at least one metal and an oxide of the metal, or at least one metal and a nitride of the metal, or at least one metal and a nitride and an oxide of the metal. The present disclosure further provides a display assembly using the display film. The display assembly of the present disclosure can display projected information.

A reflector includes a reflector body arranged to overlap a reaction chamber of a semiconductor processing system. The reflector body has a grooved surface and a reflective surface extending between a first longitudinal edge of the reflector body and a second longitudinal edge of the reflector body, the reflective surface spaced apart from the grooved surface by a thickness of the reflector body. The grooved surface and the reflective surface define a pyrometer port, two or more elongated slots, and two or more shortened extending through the thickness of the reflector body. The shortened slots outnumber the elongated slots to bias issue of a coolant against the reaction chamber toward the second longitudinal edge of the reflector body. Cooling kits, semiconductor processing systems, and methods of cooling a reaction chamber during deposition of a film onto a substrate supported within the reaction chamber are also described.