Abstract:
A flexible optical solar reflector (FOSR) which may be also used as an outermost layer of a multilayer thermal insulator comprising: a heat radiation layer (2) of a resin selected from the group consisting of poly [(4'-phenoxy-4-carbonyl)diphenyl ether] represented by the following general formula of:
and poly (ether imide) represented by the following general wherein R is a meta-substituted phenyl group, a para-substituted phenyl group or a 4,4'-substituted phenyl ether group; and a solar light reflecting layer (1) disposed on said heat radiation layer (2) and made of a thin coating of a metal selected from the group consisting of silver and aluminium, A CeO 2 covering layer may be disposed over the heat radiation layer. The FOSR is excellent in resistance to ultraviolet rays, particularly in resistance to electron beam, and superior in optical and mechanical properties.
Abstract:
A solar control plastic glazing, comprising a plastic matrix having a plurality of metal particles homogeneously dispersed therein, is prepared by depositing a thin metal film onto the surface of a plastic sheet, heating the plastic sheet above its softening temperature, deforming the sheet to cause the metal film to disintegrate into metal particles, and mixing the metal particles and plastic to form a composite.
Abstract:
In a process for obtaining biological effects from a transformation of light, refracted and polarized light resulting from the transformation of ambient light by means of a refracting and polarizing device comprising at least one layer of liquid crystals (5) and at least one optical device (1) capable of modifying one or several photoelectrodynamic characteristics and/or one or several photoelectrodynamic properties of these liquid crystals is applied to the biological medium to be treated. The invention also concerns the devices for implementing the process.
Abstract:
A day-night mirror (10) for a vehicle has a first sheet (12) of transparent material, a second sheet (14) adjacent and parallel to the first sheet has a first light reflective surface (16) facing the first sheet. The first and second sheets are joined along a predetermined peripheral region by a first wall (20), and a second wall of flexible material (22) extends between the first and second sheets along opposed edge regions. The sheets and walls together define a chamber (30) containing a predetermined volume of transparent fluid (32). A third sheet (36) having a light absorbing characteristic is positioned within the chamber to be moved by an actuator (40) between an active position, with the third sheet between the first and second sheets, and an inactive position, with the third sheet removed from between the first and second sheets.
Abstract:
Procédé et dispositif de réfraction et de polarisation de la lumière, caractérisés par le fait que la lumière ambiante (L) est réfractée et polarisée au moyen d'un dispositif réfracteur et polariseur principalement constitué de quatre filtres interférentiels (1, 2, 3, 4) à bandes passantes différentes, et d'une feuille ou couche de cristaux liquides (5) constitués, de préférence et avantageusement, par des cristaux cholestériques thermochromiques ou par des cristaux nématiques hélicoïdaux thermochromiques, lesdits filtres et feuilles de cristaux liquides étant accolés ou superposés les uns à la suite des autres. Ce dispositif peut être utilisé pour le traitement thérapeutique de maux et douleurs divers.
Abstract:
@ This invention provides an optical filter comprises of a pair of solid polymer films, wherein (1) a first solid polymer film has a planar alignment of a cholesteric liquid crystal structure of either clockwise of counterclockwise helical structure, which alignment allows the light of a specified wavelength to be scattered selectively, and (2) a second solid polymer film has a planar alignment of a cholesteric liquid crystal structure of a helical structure whose helical direction is the opposite to that of the first solid polymer film, which alignment allows the light at the specified wavelength to be scattered selectively, wherein the optical axes of the first and second solid polymer films are made substantially parallel to each other. This invention also provides preparation methods of an optical filter mentioned above.
Abstract:
A metal alloy oxide film and sputtering method for its producton are disclosed, as well as a high transmittance, low emissivity coated product employing said metal alloy oxide film as an antireflective film in combination with a metallic film such as silver. A method for improving the adhesion between metal and metal oxide films and an improved multiple layer coated article comprising primer layers between metal and metal oxide films are also disclosed.
Abstract:
A selectively light-transmitting laminated structure has a substracte layer (A) of a transparent sheet-like structure, bearing an infra-red wave-reflective layer (D) having a thickness of 50 to 300 A comprising silver-metal, a transparent thin layer (B having a high refractive index between layers (A) and (D) and/or a transparent thin layer (B 2 ) having a high refractive index on layer (D), and optionally a transparent top layer (E) on layer (B 2 ) if present or layer (D); with a layer (C) having a thickness of 3 to 100 A and deposited as a material selected from Ti, Zr, In, Si, C, Co and Ni being provided on layer (D) in contact therewith on the opposite side thereof to layer (A). Such laminates can be used in windows of buildings and in greenhouses.
Abstract:
In a heat wave-reflective or electrically conductive laminated structure composed of (A) a shaped solid substrate, (B) a transparent thin layer having a high refractive index in contact with one or both surfaces of a layer (C) below, wherein when the layer (B) is provided on both surfaces of the layer (C), it may, at one surface, be a transparent thin layer (B) whose refractive index is not high, (C) a transparent heat wave-reflective thin layer of an electrically conductive metal in contact with the substrate (A) or with the transparent thin layer (B), and (D) optionally, a transparent top layer; the improvement wherein said layer (C) is a layer composed of at least about 50% by weight of Ag, about 3 to about 30% by weight of Au and about 0.5 to about 30% of Cu, the amounts being based on the total weight of Ag, Au and Cu.