Abstract: This antireflection film includes a dielectric layer having a surface exposed to air and having a refractive index of 1.35 or more and 1.51 or less, a metal layer having an interface with the dielectric layer, containing silver, and having a thickness of 5 nm or less, and an interlayer having an interface with the metal layer and constituted by a laminate formed by alternately laminating total four layers or more of a layer of high refractive index having a relatively high refractive index and a layer of low refractive index having a relatively low refractive index and is laminated on a substrate having a refractive index of 1.61 or more in the order of the interlayer, the metal layer, and the dielectric layer.

Abstract: In an electromagnetic cloaking structure, a refractive index distribution has a high refractive index region which is provided around a shielding space and has a maximum value in a plane surrounding the shielding space and in which a refractive index decreases gradually from the centroid of the shielding space along a radial line passing through the plane so as to be close to an average refractive index and a low refractive index region which has a minimum value at two points having the shielding space and the high refractive index region interposed therebetween on a virtual optical axis passing through the shielding space and in which the refractive index increases gradually from the two points in a direction opposite to the high refractive index region on the virtual optical axes, on which the two points are placed, so as to be close to the average refractive index.

Abstract: Provided is an antireflection optical member which is an antireflection structure for preventing reflection from a substrate, the antireflection optical member including a laminate structure including a dielectric layer, an ultra-low refractive index layer, and the substrate that are laminated in this order, in which the ultra-low refractive index layer has a metamaterial structure in which a host medium includes guests having a smaller size than a wavelength ? of light whose reflection is to be prevented, a real part n2 of a refractive index of the ultra-low refractive index layer satisfies n2<1, a physical thickness d2 of the ultra-low refractive index layer satisfies the following Expression 1, and the dielectric layer satisfies the following Expression 2.

Abstract: A camera cover and camera capable of mitigating water drop and dirt adhesion and of ensuring image clarity are provided. A dome section (130) of the camera cover includes, on its outer surface (130a), a hydrophilic coating (131) made of an inorganic material whose main component is a silicon compound. The thickness of the hydrophilic coating (131) is 0.01 to 1 ?m. Surface roughness Ra of the hydrophilic coating (131) is 0.06 ?m or less.

Abstract: In an electromagnetic cloaking structure, a refractive index distribution has a high refractive index region which is provided around a shielding space and has a maximum value in a plane surrounding the shielding space and in which a refractive index decreases gradually from the centroid of the shielding space along a radial line passing through the plane so as to be close to an average refractive index and a low refractive index region which has a minimum value at two points having the shielding space and the high refractive index region interposed therebetween on a virtual optical axis passing through the shielding space and in which the refractive index increases gradually from the two points in a direction opposite to the high refractive index region on the virtual optical axes, on which the two points are placed, so as to be close to the average refractive index.

Abstract: There is provided a heat insulating window film disposed on the inside of a window, including: a support; and a fibrous conductive particles-containing layer disposed on the support, in which the fibrous conductive particles-containing layer contains fibrous conductive particles, the fibrous conductive particles-containing layer is disposed on a surface of the support on a side opposite to the surface of the window side, and a resistivity of the fibrous conductive particles-containing layer is equal to or greater than 1,000 ?/?. The heat insulating window film is a heat insulating window film having excellent heat insulating properties and radio-wave transmittance. A heat insulating window glass and a window are provided.

Abstract: A camera cover includes a cover outer surface which is a convex curved surface of which a lowermost part in a vertical direction is downwardly projected in the vertical direction; a first region which is provided at a predetermined radius around a substantially lowermost point of the convex curved surface; and a second region which is provided on the cover outer surface other than at the first region. The second region includes a first hydrophilic region having hydrophilic properties, and the first region has lower hydrophilic properties than those of the second region.

Abstract: An antireflection film includes an antireflection structure which has different reflectivity with respect to light to be incident on front and back surfaces, and includes a silver nano-disk layer formed by dispersing a plurality of silver nano-disks in a binder, and a layer of low refractive index which is formed on a surface of the silver nano-disk layer and has a refractive index smaller than a refractive index of the transparent substrate, and in which a ratio of a diameter of the silver nano-disk to a thickness is greater than or equal to 3, an area ratio of the silver nano-disk to the silver nano-disk layer is from 10% to 40%, and a pair of antireflection films having reflection conditions different from each other adhere to both surfaces of glass.

Abstract: Provided is a heat-shielding material including a substrate; a metal particle-containing layer which contains flat metal particles with a hexagonal shape or a circular shape; and a low refractive index layer with a refractive index of 1.45 or less, in which flat metal particles in which a principle planar surface of the flat metal particles is set with a planar orientation in a range of 0° to ±30° on average with respect to the other surface of the metal particle-containing layer are 50% by number or more of all the flat metal particles, the low refractive index layer is arranged on an uppermost surface on an indoor side when installing the heat-shielding material on a window glass, and the heat-shielding performance, visible light transmittance, and lightfastness in the heat-shielding material are excellent; and a window glass.

Abstract: An anti-reflection optical member has a laminated structure including: a transparent substrate having a first refractive index greater than that of a predetermined medium; a metal-microparticle-containing layer containing metal microparticles; and a dielectric layer having a second refractive index greater than that of the predetermined medium, in this order. At least 60% of the metal microparticles are flat particles with a diameter-to-thickness ratio of 3 or more. Principal planes of the flat metal particles are surface-oriented in the range from 0° to 30° relative to the surface of the metal-microparticle-containing layer. In the metal-microparticle-containing layer, the metal microparticles are disposed without forming a conductive path.

Abstract: A camera cover and camera capable of mitigating water drop and dirt adhesion and of ensuring image clarity are provided. A dome section (130) of the camera cover includes, on its outer surface (130a), a hydrophilic coating (131) made of an inorganic material whose main component is a silicon compound. The thickness of the hydrophilic coating (131) is 0.01 to 1 ?m. Surface roughness Ra of the hydrophilic coating (131) is 0.06 ?m or less.

Abstract: In an electroluminescence device, highly efficient light emission is realized without reducing the durability thereof. The electroluminescence device includes electrodes, a plurality of layers deposited between the electrodes, a light emitting region between the plurality of layers, the light emitting region emitting light by application of an electric field between the electrodes. The plurality of layers include a metal thin-film in the vicinity of the light emitting region. The metal thin-film induces plasmon resonance on the surface thereof by the emitted light. Surface modification is provided on at least one of the surfaces of the metal thin-film. The surface modification includes an end group having polarity that makes the work function of the metal thin-film become close to the work function of at least a layer next to the metal thin-film.

Abstract: An organoelectroluminescent element which can satisfy both a high external quantum efficiency and high power efficiency at the same time, which has on a substrate an anode, a first intermediate organic layer composed of at least one organic layer, a light-emitting layer, a second intermediate organic layer composed of at least one organic layer, and a cathode in this order, and in which light is extracted from the aforementioned anode side, wherein the aforementioned light-emitting layer contains a light-emitting material that is oriented in the horizontal direction with the substrate, the order parameter of the aforementioned light-emitting material in the aforementioned light-emitting layer is at least 0.7, and the relationship between the thickness T1 (nm) of the aforementioned first intermediate organic layer and the thickness T2 (nm) of the aforementioned second intermediate organic layer is such that 1.1<T1/T2<4.0 and also such that 20 nm<T2<80 nm.

Abstract: An organic electroluminescence device having two electrodes and a plurality of organic layers between the two electrodes, in which the organic layers include a light emitting layer that emits light when an electric field is applied between the two electrodes. The device further includes a plurality of metal fine particles, which generates a local plasmon by light emitted from the light emitting layer, inside of at least either one of the electrodes or adjacent to a side of the electrode facing the organic layers and inside of a conductive organic layer, and at least some of the plurality of metal fine particles are disposed adjacent to the light emitting layer. Here, as the metal fine particles, particles having a scattering cross section ?S which is larger than an absorption cross section ?A thereof with respect to light emitted from the light emitting layer are used.

Abstract: A structure body has a liquid-repellent surface exhibiting repellency to a liquid. The structure body includes: a substrate which has a base surface; and a plurality of projections which are arranged on the base surface of the substrate. The projections have a characteristic angle defined as an angle between a lateral surface of each of the projections and a plane that intersects with the lateral surface and is parallel to the base surface, the angle being taken inside the projection on the lateral surface and in a side of the base surface on the plane. The characteristic angle of the projections is smaller than 90° and is smaller than a reference angle that is separately determined as a static contact angle of the liquid with respect to a reference surface that is smooth and has a chemical state identical to a chemical state of the lateral surface of the projection.

Abstract: To provide a method for producing fine particles, including: forming on a surface of a base material a concavo-convex pattern made by arranging a plurality of convex portions on the surface; forming fine particles made of a fine particle material on at least part of the concavo-convex pattern; and releasing the formed fine particles from the concavo-convex pattern.

Abstract: An organic electric field light-emitting element, which contains: an anode; a cathode; and a light-emitting layer provided between the anode and the cathode, wherein the light-emitting layer contains two or more luminescent materials each giving a different emission peak, and a concentration ratio [(B/A)×100] in the light-emitting layer gradually increases along with the direction from an anode side of the light-emitting layer to a cathode side of the light-emitting layer, where A denotes a concentration of the luminescent material having the emission peak at the shortest wavelength side compared to the emission peaks of other luminescent materials, and B denote a concentration of the luminescent material having the emission peak at the longest wavelength side compared to the emission peaks of other luminescent materials, and wherein the light-emitting layer satisfies the relationship of: [(B/A)×100]?10%.

Abstract: High light transmission efficiency is achieved in an electroluminescence device without lowering the durability of the device. The electroluminescence device includes: electrodes; a plurality of layers that are deposited one on another between the electrodes; and a light emitting region between the plurality of layers. The light emitting region emits light by application of an electric field between the electrodes. At least one microparticle that induces plasmon resonance on the surface thereof by the light emitted from the light emitting region is arranged in the vicinity of the light emitting region or in the light emitting region. The microparticle is a core-shell-type microparticle including at least one metal microparticle core and an insulation shell that covers the at least one metal microparticle core.

Abstract: In an electroluminescence device, highly efficient light emission is realized without reducing the durability thereof. The electroluminescence device includes electrodes, a plurality of layers deposited between the electrodes, a light emitting region between the plurality of layers, the light emitting region emitting light by application of an electric field between the electrodes. The plurality of layers include a metal thin-film in the vicinity of the light emitting region. The metal thin-film induces plasmon resonance on the surface thereof by the emitted light. Surface modification is provided on at least one of the surfaces of the metal thin-film. The surface modification includes an end group having polarity that makes the work function of the metal thin-film become close to the work function of at least a layer next to the metal thin-film.

Abstract: An organic electric field light-emitting element, which contains: an anode; a cathode; and a light-emitting layer provided between the anode and the cathode, wherein the light-emitting layer contains two or more luminescent materials each giving a different emission peak, and a concentration ratio [(B/A)×100] in the light-emitting layer gradually increases along with the direction from an anode side of the light-emitting layer to a cathode side of the light-emitting layer, where A denotes a concentration of the luminescent material having the emission peak at the shortest wavelength side compared to the emission peaks of other luminescent materials, and B denote a concentration of the luminescent material having the emission peak at the longest wavelength side compared to the emission peaks of other luminescent materials, and wherein the light-emitting layer satisfies the relationship of: [(B/A)×100]?10%.