1162results about How to "Improve reflective effect" patented technology

What is described here is an antireflective coating comprising a carrier layer consisting of an optically transparent material, which, at least on one surface side, presents antireflective properties with respect the wavelengths of the radiation incident on the surface. Moreover, methods of producing the coating are described.The invention excels itself by the provision that the antireflective surface side presents a surface roughness with stochastically distributed structures-the so-called macro structures-and that the macro structures are additionally modulated with surface structures presenting a periodic sequence-the so-called micro structures-which present period or cycle lengths smaller than the wave lengths of the radiation incident on the antireflective surface.

Monocrystalline silicon solaode chemical etching, washing, drying method and integral processor belong to technique field of chemical etching technique and washing. It characterized in that it not only includes water, acid, alkali, but also ultrasonic participates in etching and washing course: it includes following steps: (1) ultrasonic washes and heats in advance, (2) ultrasonic removes damnification layer, (3) ultrasonic makes herbs into wool, (4) ultrasonic rinses, (5) washing with acid to counteract, (6) ultrasonic rinses, (7) cutting water, (8) hot enthalpy to dry. Positive effects of the invention are: adopting ultrasonic to etch and wash, liquid of making wool can be acted with silicon piece, similar coarseness degree can be generated on surface, perfect pyramid pattern can be obtained; it also eliminates kalium, natrium ion from alkalescent solution, and extends service life of silicon piece; pollution can be decreased, energy consumption and water source can be saved greatly, it is a practical invention.

A mini-truss thin-sheet panel assembly. In one embodiment, a substantially rigid thin-sheet panel assembly having a non-rigid thin-sheet component includes the thin-sheet component which has selected plan area and shape, a backer having a plan shape and area substantially similar to the thin-sheet component, and plural riser elements of selected height and configuration each extending from the backer to distal ends connected to a reverse surface of the thin-sheet component, the riser elements being configured and disposed in an array which causes the assembly to have substantial rigidity in a selected direction in the thin-sheet component.

A microwave plasma source (2) is provided with a microwave outputting section (30) which outputs plural divided microwaves, and a plurality of antenna modules (41) for guiding the plural divided microwaves into a chamber. Each antenna module (41) is provided with an amplifier section (42) having one or more amplifier (47) for amplifying a microwave, and an antenna section (44) having an antenna (51) for radiating the amplified microwave into the chamber, and a tuner (43) for adjusting impedance in a microwave transmission path. The tuner (43) is integrally arranged with the antenna section (44) to be located close to the amplifier (47).

A backlight apparatus includes a guiding element and a light source disposed at one side of the guiding element. There is a plurality of reflective patterns at the bottom surface of the guiding element. Each reflective pattern is composed of at least one concavity and at least one convexity. The concavity is disposed at the rim around the convexity. As the light source emits light to the guiding element, the reflective area is increased by the concavity of the reflective pattern for increasing the reflecting effect and for distributing the brightness more uniformly, and thereby higher brightness and uniformity can be achieved.

This invention relates to a good mechanical stability, high temperature resistant and good optical property optical fiber sensor, includes optical fiber and by-met optical fiber. optical fiber or / and by- met fiber optic end face have micro-flutes, and via butt joint together; The described micro-flute forms a FP cavity which has plain optical reflection surface. The invention adoptive laser machining craft can apply to every kind of optical fiber; be able to cutting optical fiber precisely, and are prone to execute different kinds of range's pressure sensor; optical property of the sensor is very fine; both the two stage optical fiber can be common single mode optical fiber, they are completely compatible; The contrast ratio of sensor's reflecting stripe can reach 10 dB upwards.

The invention discloses a colored solar heat reflection and heat-insulation coating. The coating is prepared from the following raw materials: polymer emulsion, titanium dioxide, functional fillers, an infrared reflection pigment, kaolin, ground calcium carbonate, a dispersing agent, a wetting agent, a defoaming agent, a thickening agent, a film-forming additive, a preservative, and water. The colored solar heat reflection and heat-insulation coating provided by the invention has the advantages that a coating film with a high reflectivity is prepared through adoption of the components, addition of the functional fillers (glass microbeads, ceramic microbeads and floating beads) which are large in refraction coefficient and high in scattering capability and reflectivity, as well as the pigment which is large in infrared reflection ratio, and application of film-forming matters and the film-forming additive, so that the coating achieves good heat-insulation performance, multiple selectable colors, excellent elasticity, high stain resistance, as well as large solar and near-infrared reflection ratios.

The present invention relates to outer wall paint, and is especially one kind of high performance nanometer outer wall paint and its preparation process. The nanometer outer wall paint has introduced organosilicon and fluoro resin to result in watertight coating with high permeation resistance and breathing function, water-thinned resin, nanometer titania particle, dispersing assistant and other assistants to make the paint possess well dispersed nanometer titania particle and excellent photocatalytic self-cleaning function.

The invention relates to an improved method for producing silica aerogel in pure and flexible sheet form having effective suppression of radiative heat transport at high temperatures and increased thermal insulation property. The suppression of radiative heat transport was achieved by in-situ production of titanium dioxide nanoparticles in very minor concentrations during gelation of silica precursor, with nanoporous surface area more than 300 m2/g and acts as an infra red reflecting agent. When aerogel is subjected to heat during hot object insulation, it automatically turn into infra red reflecting material. Said silica aerogel can be incorporated into the inorganic fibre mat matrix individually or into two or more layers with organic sponge sheet placed in between and stitched together to form a sandwich sheet to form highly insulating flexible sheet.

The invention discloses an elastic thin-layer insulating coating layer on the base of building wall or metal surface, which comprises the following parts: base, middle layer, surface layer and protective layer, wherein the base is epoxy zinc-rich paint, which is hydraulic sealed paint; the protective layer is transparent dirt-proof aging-tolerance liquid; the middle layer contains elastic emulsion of film acroleic acid, hollow filler of modified insulating silicate, solar reflecting dye; the surface layer concludes elastic emulsion of membrane acroleic acid, infrared irradiation ceramic filler, hollow filler of modified insulating silicate, solar reflecting dye, which coordinate.

The invention relates to an EVA (ethylene vinyl-acetate copolymer) adhesive film capable of simplifying a packaging structure of a solar battery. The EVA adhesive film is prepared from the following raw materials in parts by weight: 100 parts of EVA, 0.5-1.0 part of crosslinking agent, 0.5-5 parts of compatilizer, 0.5-1 part of antioxidant, 0.05-1 part of light stabilizer, 1-10 parts of titanium dioxide and 0.5-1.5 parts of tackifier. The EVA adhesive film is prepared by the following steps: mixing the EVA with other assistants, carrying out melt extrusion, casting to form a film, and finallyrolling to obtain the finished product. The adhesive film provided by the invention is mainly used between a solar battery component and a back panel; and unlike the common EVA packaging adhesive film and back panel material, the adhesive film provided by the invention can simplify the packaging structure of the solar battery, can effectively lower the cost of the solar battery pack, and is beneficial to the further popularization of the solar battery.

The invention provides a multi-beam scanning lens antenna. The medium cylindrical lens is placed between two parallel plate waveguide parallel circular metal plate, the feed array by printing curved planar antenna array on the dielectric substrate, the feed array horizontally in round two the edge of the metal between the parallel plate waveguide with a feed array and between parallel circular metal plate four hex pillars fixed, since the antenna system uses spaced circular parallel plate waveguide structure to achieve a single-mode transmission, arc shaped feed array can be well combined with the circular parallel plate in the horizontal plane with good symmetry, reduces the volume of the pitch surface, and the process is simple, low cost, to achieve a balanced feeding dipoles, avoid adding additional reflector structure, planar microstrip Yagi antenna feed structure occupies less volume, can be well combined with the control circuit.

The invention relates to a novel coated film and the producing method thereof. And it is a VMPET coated film, produced by coating PVDC, PVOH and AC as main raw materials on VMPET.

The invention discloses a gallium nitride-based light-emitting diode (LED) with distributed Bragg reflectors on side walls and a preparation method thereof. The preparation method comprises the following steps of: sequentially growing a N-GaN layer, a multiple-quantum well layer and a P-GaN layer on a sapphire substrate; forming a transparent conducting layer on the P-GaN layer; etching part of a table top on which the transparent conducting layer is positioned by a light shield until the N-GaN layer is exposed; forming a P electrode on the transparent conducting layer; forming a N electrode on the exposed N-GaN layer; forming the distributed Bragg reflectors on the side walls of the sapphire substrate, the N-GaN layer, the multiple quantum well layer and the P-GaN layer; and thinning and polishing the sapphire substrate, and cutting the sapphire substrate into independent LED core grains. Compared with the prior art, the invention has the advantage that the distributed Bragg reflectors with excellent reflectivity are arranged on the side walls of an LED chip, thus when light reaches the side surfaces of the sapphire substrate, light output or light extraction can be effectively increased, and the external quantum efficiency of the LED can be effectively improved.

The invention discloses a high-flame-resistance high-strength high-reflection polycarbonate material which is prepared from the following raw materials in percentage by mass: 10-75% of polycarbonate, 0.05-10% of a flame retardant, 0.1-0.8% of an anti-dropping agent, 25-75% of light-reflecting master batches, 1-10% of a toughening agent, 0.2-1% of an ultraviolet resistant agent, 0.2-1% of an antioxidant and 0.2-5% of a lubricant, wherein the light-reflecting master batches consist of a light reflecting agent, a coupling agent, polycarbonate and auxiliaries in a mass ratio being 40 to (7.5 to 17.5) to (37 to 57) to (0.1 to 5). The material has a good light shielding and reflecting function, high flame resistance, and good mechanical property. The invention further discloses a preparation method and application for the high-flame-resistance high-strength high-reflection polycarbonate material. The high-flame-resistance high-strength high-reflection polycarbonate material can be used for preparing a light reflecting piece, and is especially suitable for preparing an LED (light-emitting diode) lamp reflecting cover.

A method of making a deflectable, free hanging micro structure having at least one hinge member, the method includes the steps of providing a first sacrificial wafer having a single crystalline material constituting material forming the micro structure. A second semiconductor wafer including necessary components for forming the structure in cooperation with the first wafer is provided. Finite areas of a structured bonding material is provided, on one or both of the wafers at selected locations, the finite areas defining points of connection for joining the wafers. The wafers are bonded using heat and optionally pressure. Sacrificial material is etched away from the sacrificial wafer, patterning the top wafer by lithography is performed to define the desired deflectable microstructures having hinges, and subsequently silicon etch to make the structures.