65results about How to "Improve light reflection effect" patented technology

The invention discloses an LED filament. The LED filament comprises multiple LED chips, at least two electrodes and a light conversion layer, wherein the multiple LED chips are electrically connected with the at least two electrodes, the light conversion layer has a top layer and a base layer, the top layer and the base layer are respectively arranged at at least two sides of the multiple LED chips and the at least two electrodes, and parts of the two electrodes are exposed by the light conversion layer. The LED filament is advantaged in that the light conversion layer has a multi-layer layered structure, layered adjustment on hardness, light transmittance and a refractive index can be realized, so hardness, light transmittance and the refractive index of the LED filament can be adjusted to an optimum state, and the LED filament can be made to satisfy different demands of LED bulb lamps.

The invention relates to a floating body material, in particular to a floating body material and a manufacturing technique thereof for an observation platform at the bottom of the sea. The floating body material comprises bisphenol A type epoxy resin, modified acrylonitrile-butadiene rubber latex, hollow glass microsphere, polyether amine, gamma-glycidoxypropyltrimethoxysilane, a silane coupling agent and polyvinyl alcohol fiber; and the floating body material comprises the following components in parts by weight: 100 parts of bisphenol A type epoxy resin, 0-10 parts of modified acrylonitrile-butadiene rubber latex, 12-18 parts of hollow glass microsphere, 15-20 parts of polyether amine, 2-3 parts of gamma-glycidoxypropyltrimethoxysilane, 1-2 parts of silane coupling agent and 2 parts of polyvinyl alcohol fiber. The invention provides the floating body material and the manufacturing technique thereof for the observation platform at the bottom of the sea; and the observation platform adopting the floating body material can be soaked in the seawater for use in a long term.

The invention discloses a manufacturing method of a highlight flip LED chip having an insulating layer protection structure. The manufacturing method comprises the steps that a luminous structure is provided; the luminous structure is etched; an insulating layer is deposited on the surface of the luminous structure; the insulating layer is etched so that a first hole and a second hole are formed;and a transparent conductive layer, an Ag mirror reflection layer, an Ag mirror protection layer and a DBR reflection layer are formed on the surface of the insulating layer and in the first hole andthe second hole. The insulating layer is formed on the surface or the side edge of the first semiconductor layer, the active layer and the second semiconductor layer so that the insulating layer is enabled to cover the bare part of the luminous structure, the Ag can be prevented from migrating to the bare part of the active layer under the effect of the electric field formed by the first semiconductor layer and the second semiconductor layer and the IR yield rate of the chip can be enhanced. Furthermore, the Ag mirror reflection layer covering the insulating layer can effectively reflect out the light emitted by the side edge of the luminous structure so as to enhance the luminous efficiency of the chip.

Provided is a curable epoxy resin composition which can be cured into a cured product that has high light reflectivity, excellent heat resistance and light resistance and high stiffness and rarely undergoes the deterioration in light reflectivity over time. This curable epoxy resin composition is: a curable epoxy resin composition characterized by comprising an alicyclic epoxy compound (A), a monoallyl diglycidyl isocyanurate compound (B) represented by formula (1), a white pigment (C), a curing agent (D) and a curing accelerator (F); or a curable epoxy resin composition characterized by comprising an alicyclic epoxy compound (A), a monoallyl diglycidyl isocyanurate compound (B) represented by formula (1), a white pigment (C) and a curing catalyst (E). [In the formula, R1 and R2 independently represent a hydrogen atom or an alkyl group having 1 to 8 carbon atoms.]

The invention relates to a method for manufacturing grain patterns on a plate, which comprises: (1) the grain patterns to be manufactured are manufactured on an initial mould; (2) the grain patterns manufactured on the initial mould are copied to a production mould; (3) the production mould copied with the grain patterns is coated with light curable ink; (4) the plate covers on the production mould coated with the light curable ink and is subjected to seal press, so that the light curable ink with the grain patterns to be manufactured is pressed on the plate; (5) the light curable ink pressed to the plate undergoes solidification treatment, so that the light curable ink with the grain patterns is fixed on the plate; and (6) the plate is separated from the production mould. Compared with the injection method for manufacturing grain patterns on the plate, the method has the advantages that the grain patterns are delicate and multivariant, and have good light reflection effect; the product has good friction resistance and high hardness; and the moulds have low cost.

The invention discloses a light-emitting diode (LED) street lamp, a high-power LED device and a high-power LED, wherein the LED street lamp comprises a base plate and at least one LED chip, wherein the base plate is a silicon base plate; a metal interconnection layer which is used for extracting an electrode of the LED chip is plated on an upper surface of the silicon base plate; a nanometer silver film is plated on the upper surface of the metal interconnection layer; and the LED chip is fixed on the metal interconnection layer, on which the nanometer silver film is plated, in a mode of eutectic welding. By the invention, the junction temperature of the chip can be effectively reduced, a radiating effect of the LED street lamp is improved, and the service life of the LED street lamp is prolonged.

The invention is to provide a polyester film excellent in moist heat resistance and other characteristics (ultraviolet ray resistance, light reflecting characteristic, etc.), and to provide a solar battery backsheet excellent in moist heat resistance and ultraviolet ray resistance by using the polyester film. It is also a task to provide a highly durable solar battery by using the solar battery backsheet. The polyester film is a polyester film containing particles and two kinds of crystalline polyester resins in which a sea-island structure is formed, and being characterized in that if a crystallization temperature of a crystalline polyester resin that forms a continuous phase (also referred to as matrix phase) (hereinafter, referred to as crystalline polyester resin A) is represented by TccA and a crystallization temperature of a crystalline polyester resin that forms a dispersion phase (also referred to as domain phase) (hereinafter, referred to as crystalline polyester resin B) is represented by TccB, an expression (1) below is satisfied, and that a degree of flatness of the dispersion phase is 3 or more, and that 70% or more of a total number of the particles are present in the dispersion phase or are in contact with the dispersion phase. TccA - TccB 5 DEG C.

The invention provides an indication lamp. The indication lamp comprises a light guide component, a point light source and a clamping component. The light guide component is provided with a containinghole, a reflecting face and a light outlet face, wherein the reflecting face and the light outlet face are not parallel mutually; the point light source is electrically connected with a circuit board, contained in the containing hole of the light guide component and used for emitting light rays; the clamping component is arranged in the containing hole and used for clamping the point light source; and when the light rays enter the light guide component, the reflecting face reflects the light rays, and the reflected light rays are emitted from the light outlet face. The invention solves the problem that a single point light source used by the indication lamp directly projects light rays to the outside so as to generate non-uniform light rays. The light rays emitted by the point light source are guided by the light guide component so as to form uniform light rays to be projected to the outside, so that the non-uniform light rays can not be generated due to a plurality of staggered and overlapped light rays when a customer uses the indication lamp.

The present invention provides a non-aqueous dispersion of a fluorine-based resin, a thermosetting resin composition containing the fluorine-based resin using the same, a polyimide precursor solution composition and the like, which have a particle diameter, and excellent preservation stability, can be mixed with a resin material such as a thermosetting resin composition, and can inhibit a decrease in adhesion strength and adhesive strength while achieving a low dielectric constant and a low dielectric tangent to be suitably used for applications such as an insulating layer of a printed wiring board, an adhesive for a circuit board, a laminate for a circuit board, a coverlay film, a prepreg, and the like. The nonaqueous dispersion of a fluorine-based resin comprises a micropowder of at least a fluorine-based resin, urethane fine particles, a fluorine-based additive containing at least a fluorine group and a lipophilic group, and a non-aqueous solvent.

The invention discloses a black and white film which comprises at least one white structure layer and one black structure layer. In the invention, the structure and the composition of the black and white film are optimized, so the black and white film has the advantages of excellent shading effect, light resistance, complete satisfying of shielding demands of parts in a display apparatus, smooth and flat surface, no fading, and good high temperature dimensional stability, and the white surface has an excellent light reflection effect, thereby lights emitted by a backlight source can be fully and effectively utilized to improve the display effect of a liquid crystal display panel. An arranged bonding layer allows the fixation, the shading and the light reflection effects of display part light source frames and the like to be further satisfied, and the black and white film which has an excellent molding processing performance can satisfy various molding processing demands.

Disclosed is a reflective film having excellent light-reflecting properties which do not deteriorate over time during use. Specifically disclosed is an aliphatic polyester resin reflective film which is made of a resin composition containing an aliphatic polyester resin and a pulverized filler. The yellow color degree (YI value) of this reflective film is less than 3.6. The pulverized filler is preferably composed of at least one substance selected from the group consisting of calcium carbonates, barium sulfates, titanium oxides and zinc oxides.

The invention discloses a water-based reflective insulation paint which comprises the following components in parts by weight: 30-50 parts of modified acrylate emulsion, 10-20 parts of vacuum microbead, 1-5 parts of titanium white, 2-6 parts of dispersing agent, 5-8 parts of nano calcium carbonate, 3-10 parts of antifreeze agent, 5-7 parts of thickener and 20-30 parts of deionized water. The water-based reflective insulation paint disclosed by the invention has favorable light reflection effect and favorable insulation effect, can effectively lower the coating surface temperature, has the advantages of excellent weather resistance, excellent dirt resistance, environment friendliness and no toxicity, and is suitable for the field of external wall decoration of houses, hotels, schools, hospitals and the like.

The invention provides a reflecting film which comprises an aliphatic polyester resin, has excellent light reflection characteristics, and does not yellow with time during use. The reflecting film of an aliphatic polyester resin is a reflecting film formed from a resin composition obtained by compounding an aliphatic polyester resin with a finely particulate filler consisting mainly of titanium oxide, wherein the titanium oxide has a niobium content of 500 ppm or lower. The surface of the titanium oxide preferably has been coated with at least one inert inorganic oxide selected among silica, alumina, and zirconia.

The invention relates to a light emitting diode circuit board heat radiation structure, which comprises a circuit board and a light emitting diode, wherein the light emitting diode is communicated with a circuit of a conductive circuit layer in the circuit board, a heat radiation bottom plate is tightly pasted on the lower surface of the circuit board, a through hole is formed in the position of the circuit board provided with the light emitting diode, and the light emitting diode is pasted on the inner surface of the bottom plate through the through hole. Through the additional arrangement of the heat conductive plate, the structure eliminates the adverse influence caused by self damage of the circuit board and the subsequent manufacture and processing in the prior art, and the light emitting diode can be directly pasted on the heat radiation bottom plate, so the whole base plate has higher heat conduction coefficient, the light ray emitting effect and the heat radiation effect are good, in addition, the manufacture and processing process of the existing circuit board can not be influenced, the bottom plate can be singly processed, the smoothness and the finish degree of the bottom plate can be easily ensured, the processing step is greatly simplified, and the manufacture difficulty is reduced, so the production cost is reduced.

The application discloses graphene powder metallic topcoat, comprising a base, a filling material, a gaseous corrosion inhibitor and an aid, wherein the base comprises, by weight, 30-50 parts of polyester powder resin, 5-15 parts of polytetrafluoroethylene resin, 3-5 parts of curing agent (TGIC) and 5-15 parts of fluorocarbon powder resin; the filling material includes, by weight, 1-5 parts of flaky aluminum powder or pearl powder, 20-40 parts of barium sulfate, and 0.05-1 part of graphene. The aluminum power or pearl powder is added by means of binding, so that a coating layer of the graphenepowder metallic topcoat has better appearance and better decorating property. By adding the flaky aluminum powder, the coating layer has better light reflecting effect; weatherability of the graphenepowder metallic topcoat is improved to certain degree. Conductivity of graphene helps transfer photo-cured electrons in time, which are generated by coating pigment-filler exposed to ultraviolet; damage to resin macromolecular chains due to the photo-cured electrons is prevented; aging resistance of the coating layer is effectively improved.

The invention relates to a method for generating a three-dimensional model of a corrugation structure of a dragonfly wing. The method comprises the steps that firstly, the measured dragonfly wing is selected; titanium dioxide is evenly sprayed on the surface of the selected measured dragonfly wing to obtain a dragonfly wing sample; finally, a laser scanning device is used for scanning the dragonfly wing sample to generate the three-dimensional model of the corrugation structure of the dragonfly wing. The method for generating the three-dimensional model of the corrugation structure of the dragonfly wing is simple, the dragonfly wing sample is obtained by evenly spraying titanium dioxide on the surface of the selected measured dragonfly wing, the light reflection capacity of the surface of the measured dragonfly wing can be greatly improved, scanning data obtained through scanning of the dragonfly wing sample are more accurate and complete, and the more accurate three-dimensional model of the corrugation structure of the dragonfly wing is obtained.

A solar cell assembly comprises a light transmission component, a backboard or another light transmission component and solar cells, wherein the light transmission component is arranged at the first side, the backboard or the other light transmission component is arranged at the second side opposite to the first side, and the solar cells are packaged between the light transmission component at the first side and the backboard or the other light transmission component at the second side via a packaging material. The solar cell assembly further comprises an edge part, wherein the edge part surrounds the packaging material, is clamped between the light transmission component at the first side and the backboard or the other light transmission component at the second side, and comprises a reflective material whose reflectivity is greater than 60%. The airtightness of the solar cell assembly can be effectively improved, and the photoelectric conversion efficiency of the solar cell assembly is improved.

The invention discloses a formula of high-reflective modified polytetrafluoroethylene. The high-reflective modified polytetrafluoroethylene comprises modified polytetrafluoroethylene synthetic resin, a plasticizer, a coupling reagent, a colorant, a lubricant, a mould release agent, a light reflection agent and an anti-aging agent, wherein the plasticizer is phthalic acid ester; the coupling reagent is titanate; the colorant is optically variable pigment; the lubricant is magnesium stearate; the mould release agent is paraffin; the light reflection agent is a blending agent of titanium dioxide, mica and aluminite powder; the anti-ageing agent is divalent nickel complex. With the adoption of the formula of the high-reflective modified polytetrafluoroethylene, provided by the invention, the prepared high-reflective modified polytetrafluoroethylene has higher performance in the light reflection effect, can form a multicoloured effect, better prolongs the service life of plastics when being compared with the prior art, and further has a conspicuous lighting prompting function.

The invention belongs to the technical field of engineering construction materials, and particularly relates to a fluorescent photocatalytic water-permeable brick and a preparation method thereof. Thefluorescent photocatalytic water-permeable brick is of a double-layer structure, wherein the lower layer of the water-permeable brick is a recycled aggregate water-permeable layer, and the upper layer of the water-permeable brick is a fluorescent photocatalytic composite concrete layer. According to the invention, the water-permeable brick is used as a matrix and is divided into a double-layer structure by adopting a layered forming method, so the strength of the water-permeable brick is guaranteed, and the utilization rate of a fluorescent material and a carbon nitride nanosheet is increased; the wear resistance and the waterproof performance of the water-permeable brick are enhanced by adding quartz sand and a PTB emulsion; and due to the addition of the carbon nitride nanosheet and fluorescent powder, the water-permeable brick has the functions of self-sustained luminescence, visible-light catalytic gas purification and self-cleaning. The water-permeable brick is suitable for parkaisles or sidewalks, meets the permeable requirements of pavements, has the fluorescent property to play a role in identification at night, continuously degrades pollutants through photocatalysis, keeps clean and tidy, and is beneficial to popularization and application.

The invention relates to a jewelry accessory of CNC embroidery and a production method of the jewelry accessory. The jewelry accessory is a flat annular body, a through hole with a center axis perpendicular to a largest surface is formed in the center position of the largest surface of the jewelry accessory, and the through hole runs through the front surface and the rear surface; the inner side of the edge of the front surface and the edge surrounding the through hole are respectively provided with a circle of semispherical projections, a circle of conical projections is distributed between the two circles of semispherical projections, and the front surface is also provided with a reflecting electroplating layer; and the rear surface is provided with a circle of groove positions surrounding the through hole and used for installing jewelry. The jewelry accessory can have relatively good light reflecting effect both from front side and rear side, the cost is not high, a relatively good appearance effect is ensured, the user requirement is met, and the market popularization is facilitated.

The invention relates to the technical field of aluminum alloy product processing, anddiscloses a low-pollution aluminum alloy polishing process. After treatment, a prepared polishing solution has high absorption efficiency on harmful components; especially when alkaline potassium permanganate absorbs nitrogen oxide with low concentration, no secondary pollutants is produced; through treatment, asaturated absorption liquid can be used as a fertilizer, and has the characteristics of good corrosion resistance and gloss retention, no amorphous layer, difficulty in impurities mixing, and the like;after polishing treatment, the surface roughness of an aluminum alloy is low, the appearance quality is improved, the corrosion resistance is enhanced, the decorative effect is good, and in addition,the aluminum alloy has higher heat reflection capacity and light reflection capacity.

Disclosed is a reflective film with excellent dimensional stability which exhibits excellent light-reflecting properties and does not suffer from yellowing over time or deterioration in the light-reflecting properties during use. Specifically disclosed is a reflective film which is composed of a substantially non-stretched film having an A layer that is made of a resin composition A containing a resin having a refractive index of less than 1.52 and a titanium oxide. The titanium oxide has a refractive index of not less than 2.5, and the vanadium content in the titanium oxide is not more than 5 ppm. The reflectance of the reflective film with respect to light having a wavelength of 550 nm is not less than 95%, and the thermal shrinkage of the reflective film after a 180-minute treatment at 80 DEG C is more than -0.1% and less than 1.0% in both longitudinal direction (MD) and transverse direction (TD).

Provided is a light-emitting diode packaging module. The light-emitting diode packaging module comprises a circuit board, a metal plate, a plurality of chips, a plurality of wires and a packaging material, wherein the metal plate is used for directly covering the upper surface of the whole circuit board, the metal plate is provided with a plurality of chip bearing seats and a plurality of openings formed in a routing area which enables the circuit board to expose, the plurality of openings are arranged on the sides of the plurality of chip bearing seats in an adjoining mode, the plurality of chips are respectively arranged on each chip bearing seat, the plurality of wires are electrically connected with the chips and the routing area of the circuit board, and the packaging material is used for respectively covering each chip, the plurality of wires and the routing area.

The invention discloses an aluminum flake pigment subjected to coating modification of nano-silicon dioxide modified by nano cerium oxide. The aluminum flake pigment is prepared from, by weight, 2-2.3 parts of aluminum pigment, 3-3.5 parts of TEOS, 4.5-5 parts of ammonium hydroxide, an appropriate quantity of absolute ethyl alcohol, 5-5.5 parts of distilled water, 0.7-0.9 part of nano cerium oxide, 0.2-0.3 part of nano potassium-sodium niobate, 0.3-0.4 part of nano ZnWO4, 0.4-0.5 part of trifluoroethyl acrylate and 0.03-0.04 part of dicumyl peroxide. The aluminum flake pigment has the advantages that heat resistance and compactness of an aluminum flake coating film are improved by the nano cerium oxide and the nano potassium-sodium niobate, transparency of the coating film is improved by the nano cerium oxide, and brightness and light reflectivity of the aluminum flake pigment are improved.

A light emitting device, a light-downward lamping tool, and a light guiding plate employed by the light-downward lamping tool. The light emitting device comprises a light source unit, the light guiding plate for transmitting the light of the light source unit and a reflective sheet; the reflective sheet reflects the light coming from the light guiding plate back to the light guiding plate, comprises a plurality of reflective micro-structures protruding towards the light guiding plate, and each reflective micro-structure is provided with a vertical angle a (90 <=a<=170 degrees). The reflective sheet is provided with the micro-structures with good reflective effect, and combined with the proper vertical angle design of the reflective micro-structure, the reflective lights can be uniformly guided to a needed light emitting angle. The light emitting device can be applied in the light-downward lamping tool or other light emitting equipment.

The invention discloses a multifunctional shell fabric, which comprises a metal shell fabric layer on the surface layer and a comfortable layer on the inner layer. The metal shell fabric layer is formed by blending and weaving metal wires and shell fabric fibers. The metal shell fabric comprises nylon fibers, cotton fibers and metal wires. The comfortable layer is formed by cotton fibers, the metal shell fabric layer is connected with the comfortable layer through weaving mode, and weaving silk yarns are made of polyster fibers. By means of mutually weaving the nylon fibers, the cotton fibers and the metal wires, the surface of the shell fabric is enabled to have metal luster and can glint indistinctly. When the shell fabric is made into clothes, the clothes have good bright light reflection effects. In particular, the bright light reflection effects are obvious in the sun or light. In addition, the metal wires have special rigidity and elasticity, so that the fabric has special alterable form memory crumple effects. The shell fabric has the healthy functions of preventing radiation, resisting static and the like.

The invention discloses a thermopile infrared sensor with linear thermal resistance correction and a preparation method thereof. By modifying the thermopile chip manufacturing process, a thermopile infrared sensor body part and a PT thermal resistor used for temperature correction are manufactured on the same substrate made of SI basic materials. The sensor is composed of a thermopile area and a linear metal thermal resistance compensation area. Compared with the prior art, the process for manufacturing the high-accuracy linear Pt resistor on the thermopile chip is achieved, meanwhile, the light reflection effect of a cold region of the chip is improved, more effective temperature difference is achieved, the sensitivity of the device is improved, and the overall accuracy of the device is improved.