Abstract: Provided is a wavelength-selective absorptive material which includes, in the following order: a base material; a reflective layer; and a high refractive index layer having a refractive index n of 3.0 or more with respect to infrared light having a wavelength range of 8 ?m to 13 ?m, having a thickness d of 30 nm to 1,000 nm, and containing a binder and flat metal particles; and an infrared absorptive layer having a maximum absorption wavelength in a wavelength range of 8 ?m to 13 ?m, in which a product n×d of the refractive index n and the thickness d is more than 1,000 and less than 4,875.

Abstract: Provided is a wavelength-selective absorptive material which includes, in the following order: a base material; a reflective layer; and a high refractive index layer having a refractive index n of 3.0 or more with respect to infrared light having a wavelength range of 8 ?m to 13 ?m, having a thickness d of 30 nm to 1,000 nm, and containing a binder and flat metal particles; and an infrared absorptive layer having a maximum absorption wavelength in a wavelength range of 8 ?m to 13 ?m, in which a product n×d of the refractive index n and the thickness d is more than 1,000 and less than 4,875.

Abstract: It is intended to increase the efficiency of heating of a cover by a heater. A monitoring camera is equipped with a capturing unit, a cover that has a dome-shaped curved portion and a flange portion and configured to cover the capturing unit, a transparent conductive film provided on an inner surface of the dome-shaped curved portion and the flange portion, and a pair of electrodes configured to supply power to the conductive film.

Abstract: Provided are a heat ray-shielding material having a frame body including a plurality of frames having a cell structure and a plurality of films attached to some or all of the plurality of frames in the frame body, in which at least some of the plurality of films shield near-infrared light, and cell sizes in the plurality of frames are larger than visible light optical wavelengths, whereby the heat ray-shielding material is lightweight, capable of selectively shielding heat rays, that is, near-infrared rays, can be applied to a variety of uses, and can be independently used as movable members, easily removable members, and members having a collapsible structure, an architectural member, a cage member, and a side surface wall.

Abstract: Provided is an infrared absorptive material having a high refractive index layer that has a refractive index of 3.0 or higher for infrared light at any wavelength in the wavelength range of 2 ?m to 50 ?m and has a thickness of 8 nm to 15,000 nm; and a reflective layer positioned on one face of the high refractive index layer.

Abstract: Provided are a heat ray-screening material and an interlayer for laminated glass and laminated glass which have the heat ray-screening material. A first embodiment of the heat ray-screening material has at least a metal flat plate particle-containing layer A containing metal flat plate particles a having an aspect ratio equal to or higher than 10 and equal to or lower than 20. A second embodiment of the heat ray-screening material has at least a metal flat plate particle-containing layer A containing metal flat plate particles a and a metal flat plate particle-containing layer B containing metal flat plate particles b, in which an absolute value of a difference between a maximum reflection wavelength of the metal flat plate particle-containing layer A and a maximum reflection wavelength of the metal flat plate particle-containing layer B is equal to or higher than 220 nm.

Abstract: A radiative cooling device including: a heat insulating container having an opening portion, and being configured to house an object to be cooled at an interior thereof and thermally insulates the object from an exterior thereof; a far-infrared radiator that is arranged between the object and the opening portion in the heat insulating container, that thermally contacts the object, and that radiates far-infrared rays in a wavelength range of from 8 ?m to 13 ?m; a far-infrared transmitting window member that closes at least part of the opening portion of the heat insulating container and that transmits the far-infrared rays radiated from the far-infrared radiator; and an intermediate heat insulating member that is arranged between the far-infrared transmitting window member and the far-infrared radiator, that thermally insulates the far-infrared transmitting window member and the far-infrared radiator from each other, and that transmits the far-infrared rays radiated from the far-infrared radiator.

Abstract: Provided are a high refractive index film including a high refractive index layer including a binder and flat metal particles, in which a value obtained by dividing an average particle diameter of the flat metal particles by an average thickness is 3 or more, a main plane of the flat metal particles is plane-oriented in a range of 0° to 30° with respect to a surface of the high refractive index layer, a volume fraction of the flat metal particles of the high refractive index layer is 20 volume % or more, and the flat metal particles are stacked in two or more layers, and an optical interference film using the high refractive index film.

Abstract: Provided are semiconductor particles including a Group 12-16 semiconductor including a Group 12 element and a Group 16 element, a Group 13-15 semiconductor including a Group 13 element and a Group 15 element, or a Group 14 semiconductor including a Group 14 element, the semiconductor particles having a plasma frequency of 1.7×1014 rad/s to 4.7×1014 rad/s and a maximum length of 1 nm to 2,000 nm; and a dispersion, a film, an optical filter, a building member, or a radiant cooling device, in all of which the semiconductor particles are used.

Abstract: A radiative cooling device including: a vacuum heat insulating container that has an opening portion, that is configured to house an object to be cooled therein and thermally vacuum insulates the object from an exterior thereof; a far-infrared radiator that is arranged between the object and the opening portion in the vacuum heat insulating container, that is thermally vacuum insulated from the exterior of the vacuum heat insulating container, that thermally contacts the object, and that radiates far-infrared rays in a wavelength range of from 8 ?m to 13 ?m; and a far-infrared transmitting window member that closes the opening portion of the vacuum heat insulating container and that transmits the far-infrared rays radiated from the far-infrared radiator.

Abstract: A radiative cooling device including: a heat insulating container having an opening portion, and being configured to house an object to be cooled at an interior thereof and thermally insulates the object from an exterior thereof; a far-infrared radiator that is arranged between the object and the opening portion in the heat insulating container, that thermally contacts the object, and that radiates far-infrared rays in a wavelength range of from 8 ?m to 13 ?m; a far-infrared transmitting window member that closes at least part of the opening portion of the heat insulating container and that transmits the far-infrared rays radiated from the far-infrared radiator; and an intermediate heat insulating member that is arranged between the far-infrared transmitting window member and the far-infrared radiator, that thermally insulates the far-infrared transmitting window member and the far-infrared radiator from each other, and that transmits the far-infrared rays radiated from the far-infrared radiator.

Abstract: According to an embodiment of the invention, there is provided a laminated structure including, in this order from a side nearer to an object to be cooled: a radiative cooling layer which contains a bubble-containing resin and radiates far-infrared rays to cool the object to be cooled; and a heat insulating layer which contains a bubble-containing resin and has a porosity of 70% or more and in which the number of bubbles contained in a layer thickness direction is 8 or less.

Abstract: A solvent-type gravure ink for a laminate according to the present invention contains a pigment, a binder resin, an organic solvent, and water. The solvent-type gravure ink contains 80 to 100 mass % in total of a polyurethane resin and a vinyl chloride copolymer resin in 100 mass % of the binder resin, and the mass ratio of polyurethane resin to vinyl chloride copolymer resin is 95:5 to 40:60. The solvent-type gravure ink contains 1 to 50 mass % of a structural unit derived from a polyether in 100 mass % of the polyurethane resin. The solvent-type gravure ink contains 0.1 to 15 mass % of a glycol ether-based organic solvent serving as the organic solvent and 0.1 to 5 mass % of the water in 100 mass % of the gravure ink.

Abstract: An antireflection film is formed by laminating an interlayer, a silver-containing metal layer containing silver, and a dielectric layer in this order from the substrate, an anchor region including an oxide of an anchor metal is provided between the silver-containing metal layer and the interlayer, a cap region including an oxide of the anchor metal included in the anchor region is provided between the silver-containing metal layer and the dielectric layer, a crystal grain size obtained by X-ray diffraction measurement in the silver-containing metal layer is less than 6.8 nm, and the anchor metal has a surface energy less than a surface energy of silver and greater than a surface energy of a layer of the interlayer closest to the silver-containing metal layer.

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: An infrared shielding material includes a metal particle-containing layer containing flat sheet-like metal particles each having at least one hole.

Abstract: Provided are an optical film which has a reflectivity of 0.50% or less with respect to all wavelengths of 400 nm, 550 nm, and 700 nm, a visible light transmittance that is higher than that of a transparent base material, and excellent rub resistance, an optical element, and an optical system. An optical film includes a transparent base material, a dielectric layer, a metal layer having an interface with the dielectric layer and containing at least silver, and an interlayer positioned between the metal layer and the transparent base material, in which a film thickness of the metal layer is less than 5.0 nm and the metal layer has a refractive index of 0.40 or less with respect to a wavelength of 550 nm.

Abstract: Provided are an antireflection film having high durability and a functional glass including the antireflection film. An antireflection film includes a transparent substrate (10), an antireflection layer (30) provided on one surface side of the transparent substrate (10), and a hard coat layer (20) included between the transparent substrate (10) and the antireflection layer (30), in which the antireflection layer (30) is formed by laminating, from the hard coat layer (20) side, a layer of high refractive index (32) having a refractive index higher than a refractive index of the hard coat layer (20), a silver nano-disk layer (36) formed by dispersing a plurality of silver nano-disks (35) in a binder (33), and a layer of low refractive index (38) having a refractive index lower than the refractive index of the layer of high refractive index (32) in this order.

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: Provided are a heat ray-shielding material having a frame body including a plurality of frames having a cell structure and a plurality of films attached to some or all of the plurality of frames in the frame body, in which at least some of the plurality of films shield near-infrared light, and cell sizes in the plurality of frames are larger than visible light optical wavelengths, whereby the heat ray-shielding material is lightweight, capable of selectively shielding heat rays, that is, near-infrared rays, can be applied to a variety of uses, and can be independently used as movable members, easily removable members, and members having a collapsible structure, an architectural member, a cage member, and a side surface wall.