66results about How to "Enhanced light scattering" patented technology

Disclosed is a method for converting a primary electromagnetic radiation to a longer output wavelength that includes providing an energy conversion layer having a first photoluminescent material and a second photoluminescent material, exposing the energy conversion layer to the primary electromagnetic radiation, and transferring at least a portion of absorbed energy from the first photoluminescent material to the second photoluminescent material by dipolar coupling, such that the second photoluminescent material subsequently emits the longer output wavelength.

A foam-holding body 52 having a large difference in refractive index between foams 521 and the surrounding material is disposed on the major light extraction surface of the sapphire substrate 50. The foam-holding body 52 has translucency to light of a light-emitting wavelength and is formed of a material such as a silicone or the like, having a refractive index equal to or more than 1.77, and includes a foam-holding layer holding a plurality of foams made of an air or an inactive gas having a refractive index of about one. Therefore, when the light emitted in the light-emitting portion scatters in the foam-holding body 52, the spread of the scattered light becomes wide, which restricts repetition of the total reflection in the light-emitting device to improve an efficiency of the light extraction.

Disclosed is a substrate with a transparent conductive film, wherein an underlying layer and a transparent conductive film are arranged in this order on a transparent insulating substrate. The transparent conductive film-side surface of the underlying layer is provided with a pyramid-shaped or inverse pyramid-shaped irregular structures, and the transparent conductive film comprises a first transparent electrode layer which is formed on the underlying layer and a second transparent electrode layer which forms the outermost surface of the transparent conductive film. By forming a zinc oxide layer that serves as the second transparent electrode layer by a reduced pressure CVD method, a substrate with a transparent conductive film that is provided with an irregular structure smaller than that of the underlying layer can be obtained. The substrate with a transparent conductive film can improve the conversion efficiency of a photoelectric conversion device through an increased light trapping effect.

A multilayer structure for sustained conversion of a primary electromagnetic radiation into another electromagnetic radiation characterized by a spectrum of a higher average wavelength is disclosed. Also disclosed are methods of creating and using the inventive multilayer structure.

Disclosed is a method of making a glazing unit, comprising providing at least one self-supporting insert of light-transmissive insulation material in the form of honeycomb arrangement of cells, substantially filling the cells of said at least one self-supporting insert with a granular, thermally insulating, light transmissive filler material, and sandwiching said at least one insert between a pair of glass lites.

A curable organosilicate composition that is employed to form one or more layers in the fabrication of electronic devices comprising: (a) an alkoxy or acyloxy silane having at least one group containing ethylenic unsaturation which group is bonded to the silicon atom (b) an alkoxy oracyloxy silane having at least one group containing an aromatic ring which group is bonded to the silicon atom, (c) a latent acid catalyst, and (d) optionally an alkoxy or acyloxy silane having at least one C1-C6 alkyl group bonded to the silicon atom.

A conventional semiconductor LED is modified to include a microlenslayer over its light-emitting surface. The LED may have an active layer including at least one quantum well layer of InGaN and GaN. The microlens layer includes a plurality of concave microstructures that cause light rays emanating from the LED to diffuse outwardly, leading to an increase in the light extraction efficiency of the LED. The concave microstructures may be arranged in a substantially uniform array, such as a close-packed hexagonal array. The microlens layer is preferably constructed of curable material, such as polydimethylsiloxane (PDMS), and is formed by soft-lithography imprinting by contacting fluid material of the microlens layer with a template bearing a monolayer of homogeneous microsphere crystals, to cause concave impressions, and then curing the material to fix the concave microstructures in the microlens layer and provide relatively uniform surface roughness.

A display panel device includes a front sheet that is glued on a front face of a plasma display panel. The front sheet includes a mesh made of a light shield member that has a blackened front surface and a plane size larger than a screen. A length between diagonal lattice points of the mesh is shorter than a cell pitch that is longer one of the cell pitches in the vertical direction and the horizontal direction of the screen. An arrangement direction of the mesh is inclined with respect to an arrangement direction of the cells in the screen.

This invention intends to develop a technique for forming an interlayer with excellent optical characteristics and to provide a photoelectric conversion device having high conversion efficiency. To realize this purpose, a series connection through an intermediate layer is formed in the thin-film photoelectric conversion device of the invention, and the interlayer is a transparent oxide layer in its front surface and n pairs of layers stacked therebehind (n is an integer of 1 or more), wherein each of the pair of layers is a carbon layer and a transparent oxide layer stacked in this order. Film thicknesses of each layer are optimized to improve wavelength selectivity and stress resistance while keeping the series resistance.An embodiment of the photoelectric conversion device is characterized in that; a transparent insulating substrate is located on the light incidence side, and a transparent conductive layer, at least one photoelectric conversion unit, a transparent electrode layer having electrical conductivity as typified by zinc oxide, a hard carbon layer having electrical conductivity as typified by diamond-like carbon, and a high reflecting electrode layer are stacked in this order on an opposite surface from a light incidence side of the transparent insulating substrate.

A transparent conductive layer includes a substrate, a first conductive layer disposed on the substrate, and a second conductive layer disposed on the first conductive layer, wherein the second conductive layer comprises a textured surface and an opening which exposes the first conductive layer, wherein the opening comprises a diameter of about 1 micrometer to about 3 micrometers. Also disclosed is a method of manufacturing the transparent conductive layer and a photoelectric device.

Polymer network liquid crystal materials have improved mechanical properties such as rigidity and hardness and substantially improved electro-optical performance. The PNLC material can be manufactured with an emulsion process so as to simplify substantially the manufacturing process. Each LC droplet can be configured with the polymer network extending substantially across the LC droplet, and the polymer network may comprise a material to lower substantially the switching voltage, such as a fluorinated acrylate that may interact with the liquid crystal so as to lower the surface tension of the LC droplet. The PNLC material may comprise an interfacial layer combined with the polymer network so as to decrease substantially the driving voltage.

Systems and methods for preventing or reducing contamination enhanced laser induced damage (C-LID) to optical components are provided including a housing enclosing an optical component, a container configured to hold a gas phase additive and operatively coupled to the housing; and a delivery system configured to introduce the gas phase additive from the container into the housing and to maintain the gas phase additive at a pre-selected partial pressure within the housing. The gas phase additive may have a greater affinity for the optical component than does a contaminant and may be present in an amount sufficient to inhibit laser induced damage resulting from contact between the contaminant and the optical component. The housing may be configured to maintain a sealed gas environment or vacuum.

The invention discloses a preparation method of nitrogen (N)-doped titanium dioxide (TiO2) microspheres. In the invention, urea is used as a nitrogen source, hydrochloric acid is used as a protecting agent of butyl titanate (TBT), and a solvent heat method (ethanol and water mixing liquid is used as a solvent) is adopted for synthesizing the N-doped TiO2 microspheres. According to the method, TiO2 microspheres with good appearance can be prepared, and in addition, nitrogen elements in the urea is utilized for nitrogen doping, so the visible light absorption of the TiO2 microspheres is obviously improved. The method simultaneously realizes the microsphere preparation and the N doping, the preparation process is simple, the cost is low, and in addition, the application range is wide. The preparation method can be used in the fields of catalysis, dye solar cells, and the like.

A lighting apparatus for simulating a neon sign and method of making is provided. An outer housing having a central opening and defining a perimeter of the lighting apparatus can be connected with an inner housing configured as a plurality of symbols for conveying a message. Mounted within the interior of the outer and inner housing can be a series of lighting units such as SMD light emitting diodes. Respective outer housing and inner housing can have a cross-sectional inverted U-shape capped by a base member with the upper member having a curved diffuser for transmitting light through a transmissive plastic resin while integrally mounted black or opaque straight legs of a U-shape can enhance the simulated neon glow.

Composite particles and a method of preparing the composite particles are provided. The composite particles contain titanium dioxide particles with adsorbed two-phase polymer particles. The two-phase polymer particles have a soft polymer phase and a hard polymer phase in which the weight ratio of the hard polymer phase to the soft polymer phase is in the range of 10:1 to 1:5. The composite particles containing the two-phase polymer particles have improved aqueous stability and provide coatings with improved scrub resistance.

A luminous system comprising one or more illumination sources, a multilayer structure, and one or more diffuse reflection layers being optically decoupled from the multilayer structure, wherein the emission and the reflection of the luminous system produce a first observed visible color when the one or more illumination sources are powered and a second observed visible color when the one or more illumination sources are non-powered is disclosed. Also disclosed are methods of creating the inventive luminous system.

There is provided a polymer composition comprising 5 to 100% by mass of a unit (A) of a lactone compound represented by a general formula (1) and 0 to 95% by mass of a unit (B) of (meth)acrylate as constitutional units, wherein the unit (A) of a lactone compound comprises a unit of an (S) isomer represented by a general formula (2) and a unit of an (R) isomer represented by a general formula (3) at a mass ratio of from 70 / 30 to 30 / 70; and wherein the polymer composition has a total light scattering loss of not more than 100 dB / km. The polymer composition is excellent in heat resistance and transparency.

The present invention relates to a solid sheet prepared from a composition that includes: (a) a transparent polycarbonate; and (b) transparent polymeric particles having an optical density which differs from the transparent polycarbonate matrix material. The present invention also relates to use of such a solid sheet as a diffuser sheet in flat screens.

The invention relates to a TPU / silica gel composite material. The TPU / silica gel composite material comprises a base cloth layer, a first hot melt adhesive layer, a TPU layer, a second hot melt adhesive layer and a silica gel layer which are successively stacked; and the first hot melt adhesive layer and the second hot melt adhesive layer are both TPU hot melt adhesive layers. The provided high-wear-resistance TPU / silica gel composite material is good in wear resistance, and after the high-wear-resistance TPU / silica gel composite material is ground by 1000 revolutions under the pressure of 9kPa, wear is not obvious, moreover, light scattering of the high-wear-resistance TPU / silica gel composite material is obviously higher than that of a silica gel material, and the flame retardance is good. The silica gel layer is thinned until the thickness of the silica gel layer is suitable, is matched with the hot melt adhesive layers, and firmly adheres to the TPU layer, air bubbles are avoided due to tape casting, and therefore, the material has good light scattering property on the premise of good wear resistance.

The present invention provides an inverted QD-LED and a manufacturing method thereof. The manufacturing method of an inverted QD-LED according to the present invention adopts a hydrothermal synthesis process to form a monocrystalline TiO2 nanorod array film for serving as an electron transport layer, wherein a plurality of monocrystalline TiO2 nanorods contained in the monocrystalline TiO2 nanorod array film are arranged in an array so as not to readily get aggregated thereby overcoming the deficiencies of inhomogeneous film formation resulting from aggregation of TiO2 nanometer particles, lowered electron transport efficiency, and low light extraction efficiency, and thus ensuring high-efficiency electron transport rate of the electron transport layer, increasing scattering of light to heighten light extraction efficiency, and improve luminous efficiency and stability of a device. The inverted QD-LED according to the present invention involves a monocrystalline TiO2 nanorod array film to serve as an electron transport layer, and thus demonstrates increased luminous efficiency and stability.

A composite particle including a core and a shell, wherein the core has at least one inorganic nanoparticle and the shell is made of vitrified glass, methods for obtaining thereof and uses thereof. The uses include a film having a host material and at least one composite particle and an optoelectronic devise including at least one composite particle or the film.

A luminous system comprising one or more illumination sources, a multilayer structure, and one or more diffuse reflection layers being optically decoupled from the multilayer structure, wherein the emission and the reflection of the luminous system produce a first observed visible color when the one or more illumination sources are powered and a second observed visible color when the one or more illumination sources are non-powered is disclosed. Also disclosed are methods of creating the inventive luminous system.

A light assembly for an automotive vehicle includes a lens holder that supports an internal lens. The light assembly includes a light source powered by the vehicle. The internal lens includes an undulating surface facing the light source. A reflective metallic layer is disposed along the undulating surface to provide enhanced scattering of light and heat away from a reflex lens.

The invention discloses a plane light source device and a preparation method thereof. The preparation method is characterized in that the bonding force of fluorescent powder and glass substrate can be improved and the luminance of the light source can be improved by adding silica particles when fluorescent powder sizing agent is prepared.