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49results about How to "Increase reflective surface" patented technology

Flame imitation manufacturing device of an electrical-heated fireplace

A flame imitation manufacturing device of a fireplace relates to a flame imitation manufacturing device for simulating the burning state in a fireplace in the field of household appliances. Said device comprises a housing, a cross flow fan and a light source mounted on a base plate of the housing, a simulated fire chamber mounted on a back plate of the housing, ribbons mounted on the back plate of the housing by means of upper and lower strip bars and above the cross flow fan, and a light-transmitting glass plate mounted on the housing and in front of said ribbons. This invention, characterized in that said cross flow fan is a swinging one, is advantageous in that supplying wind non-directively by utilizing the swinging of said fan improves the flying state of ribbons so as to make the image state of burning flames more vivid, greatly enhances the authenticity of flames and lowers the cost thereof, and thus is adaptable to various flame imitation electrical-heated fireplaces and electrical appliances.
Owner:WANG ZHUHONG

Back illuminated photodiodes

A highly reflecting back illuminated diode structure allows light that has not been absorbed by a semiconductor absorbing region to be back reflected for at least a second pass into the absorbing region. The diode structure in a preferred embodiment provides a highly reflecting layer of gold to be supported in part by a conducting alloyed electrode ring contact and in part by a passivation layer of SixNy. Conveniently this structure provides a window within the contact which allows light to pass between the absorbing region and the reflecting layer of gold.
Owner:LUMENTUM OPERATIONS LLC

Process and measuring equipment for improving the signal resolution in gas absorption spectroscopy

Process and measuring equipment for improving the signal resolution in gas absorption spectroscopy, wherein the measuring equipment includes a laser light source, a light detector and a measuring chamber arranged in between, and furthermore a light source control unit and a light detector evaluation unit. To improve the signal resolution, the noise intensity of the measuring equipment is reduced by averaging over time the interfering signal portions caused by back-reflections, etalons respectively self-mixing effects. This is accomplished by a light modulator arranged downstream the laser light source that continuously periodically influences the optical path length of the light beam. Thereto the light modulator includes an optical element with an adjustable refractory index that continuously cyclically alters the phase of the laser light of the light beam.
Owner:AXETRIS AG

Novel composite electromagnetic shielding latex paint and preparation thereof

The invention relates to a compound water-based electromagnetic shielding coating, which is composed of conducting layer coating and insulating layer coating, weight proportions of each component of conducting layer coating are that emulsion 30-60 parts, conductive filler 40-50 parts, film forming additive 1-5 parts, thickening agent 0.5-1 parts, thixotropic agent 1-2 parts and pure water 10-15 parts. The weight proportions of insulating layer coating are that emulsion 90-95 parts, film forming additive 2-8 parts, thickening agent 0.5-1 parts and pure water 5-10 parts. The architectural emulsion is at least one of pure acrylate copolymer emulsion, styrene-acrylate copolymer emulsion and vinyl acetate- acrylate copolymer emulsion. The grain diameter of conducting nickel powder is micro grade, which has excellent oxidation resistance, and is combined with polymer emulsion, and electrical surface resistivity is greatly lowered. The shielding coating is coated on the inner surface of architecture according to the conducting / insulating / conducting mode, coating layer with the functions of conducting and electromagnetic shielding can be formed, the capabilities of resisting external electromagnetic interference and electromagnetic pollution can be effectively improved.
Owner:REAR SERVICE TECH EQUIP INST NAVY PLA

Patterned substrate and preparation method thereof

The invention relates to a patterned substrate which comprises a basic substrate. The front of the basic substrate is etched to form a patterned projection arranged in an array mode. The patterned substrate is characterized in that the patterned projection comprises a plurality of projections, the widths of the projections are progressively decreased from bottom to top, the width of the bottom of an upper projection is as same as that of the top of a lower projection, and the uppermost projection of the patterned projection is multilaterally conical, multilaterally cylindrical, multilaterally trapezoidal or multilaterally square table-shaped. The basic substrate is a sapphire substrate, a silicon carbide substrate or a silicon substrate. The patterned projection and the basic substrate are made of the same materials. The uppermost projection of the patterned projection and the basic substrate are made of different materials, the projections below the uppermost projection of the patterned projection and the basic substrate are made of the same materials, and the uppermost projection of the patterned projection is made of SiO2, Si3N4, ZnO2, Si or GaAs. A reflecting surface is added, multiple reflection of light inside the patterned substrate is decreased, and the light extraction efficiency of a chip can be effectively improved.
Owner:SHANDONG NOVOSHINE OPTOELECTRONICS CO LTD

Round brilliant cut diamond and its incision method

InactiveUS20100154473A1Minimize weight lossMaximize brilliancyFine working devicesJewelleryEngineeringFaceting
The present invention discloses a round brilliant cut diamond. The diamond includes a crown, a girdle, and a pavilion, the cut crown includes one regular octagon table, eight first facets, eight second facets, and sixteen third facets, wherein the cut pavilion has sixteen quadrangular fourth facets, sixteen quadrangular fifth facets, and sixteen sub-triangular sixth facets. The sixteen fourth facets meet at a point, which forms an apex, and each fourth facet, fifth facet and sixth facet meet a point. A depth of the fourth facets is smaller than 21.6% of the total girdle diameter D. The present invention also discloses methods for preparing above mentioned round brilliant-cut diamond.
Owner:SHENZHEN ZHENCHENGMEI JEWELRY

Distance measuring device and laser beam projector therefor

A laser beam projector has a laser light source that outputs a laser beam, a light projecting mirror for reflecting the laser beam outputted from the laser light source, a mirror driving device for oscillating the light projecting mirror so as to scan a specified area with the laser beam and piezoelectric elements attached to a back surface of the light projecting mirror. As a voltage is applied to the piezoelectric elements, the curvature of the reflecting surface of the light projecting mirror can be changed and the visibility angle of the light beam projector can be varied. A distance measuring device is formed with such a laser beam projector together with a laser beam receiver for receiving reflected waves of the laser beam from an object and a control unit for measuring the distance to the object based on the difference between the time of projecting the laser beam and the time of receiving the reflected waves by the laser beam receiver as well as the direction of the object from the direction of the projected laser beam.
Owner:ORMON CORP

Manufacturing method of a muffler assembly

A method of manufacturing a muffler assembly is provided that includes the step of cutting a pipe to a length that is slightly longer than that of a muffling device. The method includes the step of forging a lower end of the pipe to form an exhaust pipe. Then, the muffling device is spirally wound and inserted in a middle portion of the pipe. An upper end of the pipe is then forged and formed as an inlet pipe. The method also includes the step of forging the inlet pipe and the exhaust pipe again to hold the muffling device in place in the middle portion of the pipe.
Owner:WU I LONG +1

Display device

The invention provides a display device. The display device comprises a display panel, a light guide plate and a rubber frame. The display panel has a display area. The light guide plate overlaps thedisplay area and has a light emitting surface and a side wall connected to the light emitting surface. The rubber frame comprises a reflecting surface, a high-reflectivity material part and a low-reflectivity material part. The reflecting surface faces the side wall of the light guide plate. The high reflectance material portion is configured to bear the display panel. The low-reflectivity material part is connected to the high-reflectivity material part, and the reflectivity of the low-reflectivity material part is lower than the reflectivity of the high-reflectivity material part. At least one junction of the high-reflectivity material part and the low-reflectivity material part is arranged on the reflecting surface. At least one junction and the side edge of the display area are provided with a connecting line, and an included angle equal to or smaller than 45 degrees is formed between the connecting line and the light-emitting face. The display device provided by the invention is good in light emitting uniformity at different visual angles.
Owner:CORETRONIC DISPLAY SUZHOU CO LTD

Inflatable solar energy collector apparatus

An inflatable solar energy collector. The device uses two elongated and pressure-stabilized air chambers with a trough-shaped reflecting surface in between. The curvature of the reflecting surface is adjusted by adjusting the differential pressure between the two air chambers. The device can be configured to provide a focal point outside the air chambers or inside the air chambers. For the version using the external focal point an external energy receiver is appropriately positioned. For the version using the internal focal point, the receiver is mounted inside one of the air chambers.
Owner:FLORIDA STATE UNIV RES FOUND INC

Electric tower bird repelling device

The invention relates to an electric tower bird repelling device which comprises a supporting rod, a rotation arm and a reflecting mirror, wherein the rotation arm rotates around the supporting rod. The electric tower bird repelling device is characterized in that a lens on the reflecting mirror is arranged to be a double-faced lens, a mirror handle with a connection hole is arranged on the reflecting mirror, the reflecting mirror is connected with the rotation arm in a clearance fit mode through the connection hole in the mirror handle. A positioning hole and a positioning screw are arranged on the mirror handle. A reflecting lens with an upward lens face is arranged on the rotation arm. The electric tower bird repelling device has the advantages that the reflecting frequency and the reflecting face of the bird repelling device are increased by one time, the angle of the reflecting mirror can be freely adjusted and thus, the reflecting coverage face is enlarged and the bird repelling effect of the bird repelling device is greatly enhanced.
Owner:DALIAN POWER SUPPLY COMPANY STATE GRID LIAONING ELECTRIC POWER +1

Tunnel type multi-mode microwave resonant cavity with rotation function

ActiveCN106211405AUniform Microwave Energy DistributionGood microwave irradiation uniformityOhmic-resistance heatingMicrowave heatingEnvironmental resistanceRotation function
The invention relates to a tunnel type multi-mode microwave resonant cavity with a rotation function. The microwave resonant cavity consists of a hollow hexagonal prism, HFSS (High Frequency Structure Simulation Software) is used for simulating and positioning the positions of four microwave energy feedback holes, four microwave tubes with total 4KW independently feed microwave energy from different directions, the energy distribution of the microwave resonant cavity is improved through electromagnetic wave energy feedback simulation, and microwave energy focus points in the resonant cavity are obviously reduced; meanwhile, a pipeline installation position is designed on the middle position of the resonant cavity, pipelines made of low-microwave adsorption materials including ceramics and glass can be assembled; and the pipeline which finishes being installed can rotate under the driving of a rotation device, and materials in the pipeline can be subjected to even microwave radiation. In the field of environment protection, the microwave resonant cavity is suitable for processing agriculture and forestry waste materials, waste rubber, waste plastics, waste printing circuits and the like, can carry out intermittent batch processing, can be combined with other piece of conveying processing equipment to realize fluidization operation, has the advantages of simple structure and high practical application value and is favorable for industrial popularization.
Owner:TONGJI UNIV

Disc Stirling engine heat collector port heat shield device and application thereof in solar power generation

The invention relates to a disc Stirling engine heat collector port heat shield device and application thereof in solar power generation. The disc Stirling engine heat collector port heat shield device comprises a cylindrical heat collection cavity formed by heat-insulation components, wherein the bottom of the heat collection cavity is sealed; the inner side of the bottom is provided with a heat absorption component; the mouth of the heat collection cavity is formed by the butt joint of the small ports of two cone-shaped bodies; a big port of the cone-shaped body on the inner side is connected with the heat collection cavity; the junction of the small ports of the two cone-shaped bodies is provided with a round heat shield to seal the heat collection cavity, wherein the round heat shield is used for reflecting sunlight which enters the heat collection cavity but is not absorbed, and the convective heat exchange of a heat collector and atmospheric environment is inhibited. The reflection to the radiation energy of the heat collector is effectively enhanced, the convective heat exchange of the heat collector and atmospheric environment is completely inhibited due to the heat shield, lost heat from the heat collector port to external space can be effectively reduced, and the optothermal conversion efficiency of the engine heat collector is improved.
Owner:AECC AVIATION POWER CO LTD

Magnesium alloy with high strength and ductility and high electromagnetic shielding performance and thermo-mechanical treatment method thereof

The invention discloses magnesium alloy with high strength and ductility and high electromagnetic shielding performance and a thermo-mechanical treatment method thereof. The magnesium alloy comprises,by mass, 3%-16% of Gd, 0.2%-1% of Ca and 0.02%-0.2% of Zn, and the mass ratio of the Ca to the Zn is larger than or equal to 3; or the magnesium alloy comprises, by mass, 3%-16% of Gd, 0.2%-1% of Ca,0.2%-3% of Al and the balance Mg, and the mass ratio of the Ca to the Al is larger than or equal to 0.2. A magnesium alloy ingot blank can be prepared by means of semicontinuous casting, the ingot blank is hot-rolled or hot-extruded into boards with the thicknesses being 5-25mm, ageing and water quenching are carried out after solution treatment is completed, the boards are further truly stresseduntil deformation is 0.02-0.1, and then ageing and water quenching are performed. According to the magnesium alloy with high strength and ductility and high electromagnetic shielding performance andthe thermo-mechanical treatment method thereof, the alloy internally includes a cellular microstructure formed by cylindrical surface precipitated phases, cylindrical surface dislocation, base surfaceprecipitated phases and base surface dislocation together, the synchronous improvement effect on the mechanical property and electromagnetic shielding effects is remarkable, and the bottleneck that the high strength and ductility and high electromagnetic shielding performance of magnesium alloy cannot be compatibly achieved is broken through.
Owner:CENT SOUTH UNIV

Reverse modulation device and method based on micromirror array structure

The invention provides a reverse modulation device based on a micromirror array structure. The device comprises a receiving means (1), a first photoelectric converter (3), A first codec (4), A cat's eye device (5), a micromirror array (6) and a driver (7), wherein, the receiving device (1) receives the inquiry light and transmits the inquiry light to a first photoelectric converter (3), the firstphotoelectric converter (3) converts the optical signal into an electrical signal, the first codec (4) encodes the electrical signal to generate a time series code, and sends the time series code to the driver (7); The cat's eye device (5) receives the modulated light and converges the modulated light to the micromirror array (6). The driver (7) drives at least one reflective micromirror in the micromirror array (6) to rotate according to a time series code so that the modulated light is reflected back to the original direction. On the other hand, the invention also provides a reverse modulation method based on a micromirror array structure.
Owner:ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI

PCB for on-board integration of LED

The invention discloses a PCB for on-board integration of an LED. The PCB for on-board integration of the LED comprises the PCB, a positive plate and a negative plate, wherein the positive plate and the negative plate are arranged at the two ends of the PCB respectively; a positive electrode lead sheet is arranged on the positive plate and extends to the middle of the PCB; a negative electrode lead sheet is arranged on the negative plate and also extends to the middle of the PCB; the positive electrode lead sheet and the negative electrode lead sheet are respectively provided with a silver coating; the positive plate and the negative plate are respectively provided with gold plating. Compared with the traditional mode that electrodes and pole pieces of the PCB are provided with simplex plating, the PCB for on-board integration of the LED improves the light source effect of an LED lamp body, the stability of the PCB is enhanced, and the overall service life of the LED is prolonged.
Owner:杨睿涵

Near-rail sound absorption and insulation device

The invention relates to a near-rail sound absorption and insulation device and belongs to the technical field of urban rail transit. The device is composed of a connecting piece and noise reduction bodies, wherein the connecting piece is fixedly connected with a sleeper through a bolt, the noise reduction bodies are fixedly connected with the connecting piece, the noise reduction bodies are L-shaped rubber integral products, two end surfaces of each noise reduction body are closed and are concave-convex primary and secondary rabbets respectively, and every two adjacent noise reduction bodiesare in butt joint through concave-convex primary and secondary rabbets, vertical surface transverse waves and vertical surface vertical waves of the noise reduction body are arranged at intervals, planes of the noise reduction bodies are downward slopes, and plane vertical waves and plane transverse waves of the noise reduction bodies are arranged at intervals. The device is easy to manufacture, safe, convenient to install and maintain, small in occupied space, free of extra foundation, low in height and close to a noise source, the good sound absorption effect is achieved, construction conditions are improved, and the view of passengers is enlarged.
Owner:SHANXI SHANGFENG TECH

Low-water-absorption heat-preservation hard melamine foam and preparation method thereof

The invention relates to low-water-absorption heat-preservation hard melamine foam and a preparation method thereof, and belongs to the technical field of high polymer materials. According to the low-water-absorption heat-preservation hard melamine foam, the density is smaller than 53 kg / m<3>, the water absorption is as low as 6.7%, the heat conductivity coefficient is as low as 0.034 W / m.K, the percentage of closed area reaches 80%, the compression strength reaches 300 kPa, and the limit oxygen index reaches up to 35%. In the preparation process, short-chain hydrophobic alcohol micromolecules and solid filler are added; a 'suspended' short-chain hydrophobic alkyl group is introduced into a side group of a molecular chain of a melamine resin prepolymer modified by short-chain hydrophobic alcohol micromolecules, so that the hydrophobicity of the resin is effectively improved, and meanwhile, the content of the 'suspended' short chain with relatively good flexibility is increased, so that the toughness of the resin can be improved, and the foam pulverization rate is reduced. In the preparation stage of the modified hydrophobic melamine prepolymer foaming liquid, a solid filler is added as a nucleating agent to adjust a foam structure, and free energy barriers for growth of bubble nuclei can be effectively reduced to promote heterogeneous nucleation, so that the low-water-absorption heat-preservation hard melamine foam which is small in foam size and uniform in distribution is prepared.
Owner:HEFEI UNIV OF TECH

Expanded graphite filler external wall insulating paint and preparation method thereof

The invention discloses expanded graphite filler external wall insulating paint and a preparation method thereof. The paint is prepared from the following substances in parts by weight: 20-40 parts ofemulsion, 10-20 parts of filler, 5-10 parts of additives, 10-30 parts of water and 10-30 parts of expanded graphite. The preparation method comprises the following steps: (1) sufficiently mixing theemulsion and expanded graphite in weight parts, adding the water in the weight part, stirring until the substances are uniformly mixed to obtain mixture I; (2) uniformly mixing a thickening agent, dispersant, defoaming agent, film-forming agent, mildew preventive and pigment in weight parts to obtain the additives, keeping on stirring the additives and mixture I in weight parts until the substances are uniformly mixed to obtain a mixture III; and (3) slowly adding the filler in weight part into the mixture III, and keeping on stirring until the substances are uniformly mixed to obtain the external wall insulating paint.
Owner:QINGDAO REALEADER ADVANCED MATERIALS TECH

Reflection type structure of automobile lamp

PendingCN111434981AReduce the loss of radiation energyImprove the utilization rate of radiant energyVehicle headlampsLighting and heating apparatusEngineeringMechanical engineering
The invention discloses a reflection type structure of an automobile lamp. The structure comprises a shell, wherein the outer side of the shell is of an opening structure. An outer lampshade is arranged at an opening of the shell, a bulb holder for the automobile lamp is arranged in the shell, a bulb for the automobile lamp is arranged on the bulb holder for the automobile lamp and faces the innerside wall of the outer lampshade, first reflectors are arranged on the shell and located on the two sides of the bulb for the automobile lamp, and a second reflector is arranged on a decorative ringon the inner side of the outer lampshade. According to the reflective structure adopted by the invention, through secondary reflection of the light beams, the radiation light beams are spatially redistributed, so that the requirements of vehicle lamp lighting laws and regulations can be met, the energy utilization rate is improved, and the vehicle lamp lighting effect is optimized. In addition, the reflecting surface is additionally arranged in front of the bulb, the structure is simple, and production and machining are easy; the reflectors can be made of common materials, so that the processand material cost is reduced.
Owner:CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST

Flame Imitation Manufacturing Device of an Electrical-Heated Fireplace

A flame imitation manufacturing device of a fireplace relates to a flame imitation manufacturing device for simulating the burning state in a fireplace in the field of household appliances. Said device comprises a housing, a cross flow fan and a light source mounted on a base plate of the housing, a simulated fire chamber mounted on a back plate of the housing, ribbons mounted on the back plate of the housing by means of upper and lower strip bars and above the cross flow fan, and a light-transmitting glass plate mounted on the housing and in front of said ribbons. This invention, characterized in that said cross flow fan is a swinging one, is advantageous in that supplying wind non-directively by utilizing the swinging of said fan improves the flying state of ribbons so as to make the image state of burning flames more vivid, greatly enhances the authenticity of flames and lowers the cost thereof, and thus is adaptable to various flame imitation electrical-heated fireplaces and electrical appliances.
Owner:WANG ZHUHONG

Novel composite electromagnetic shielding latex paint and preparation thereof

The invention relates to a compound water-based electromagnetic shielding coating, which is composed of conducting layer coating and insulating layer coating, weight proportions of each component of conducting layer coating are that emulsion 30-60 parts, conductive filler 40-50 parts, film forming additive 1-5 parts, thickening agent 0.5-1 parts, thixotropic agent 1-2 parts and pure water 10-15 parts. The weight proportions of insulating layer coating are that emulsion 90-95 parts, film forming additive 2-8 parts, thickening agent 0.5-1 parts and pure water 5-10 parts. The architectural emulsion is at least one of pure acrylate copolymer emulsion, styrene-acrylate copolymer emulsion and vinyl acetate- acrylate copolymer emulsion. The grain diameter of conducting nickel powder is micro grade, which has excellent oxidation resistance, and is combined with polymer emulsion, and electrical surface resistivity is greatly lowered. The shielding coating is coated on the inner surface of architecture according to the conducting / insulating / conducting mode, coating layer with the functions of conducting and electromagnetic shielding can be formed, the capabilities of resisting external electromagnetic interference and electromagnetic pollution can be effectively improved.
Owner:REAR SERVICE TECH EQUIP INST NAVY PLA

Gradient-index dielectric lens and gradient-index dielectric lens antenna

The invention provides a gradient refractive index medium lens and a gradient refractive index medium lens antenna, wherein a refractive index distribution of a semi-cylindrical gradient refractive index medium lens meets a formula disclosed in the specification, and a refractive index distribution of a hemispheric gradient refractive index medium lens meets a formula disclosed in the specification. According to the principle of optical transformation, the refractive index of the semi-cylindrical or hemispheric gradient refractive index medium lens is obtained by adopting conformal transformation calculation and is greater than 1. The semi-cylindrical or hemispheric gradient refractive index medium lens has the advantages of regular distribution, convenience for realization, and wide working band, can not only be used for imaging singly but also be used in the fields of communication and radar by increasing a reflecting surface, and is cooperated with other devices to form an antenna system. According to the gradient reflective index medium lens antenna provided by the invention, the semi-cylindrical or hemispheric gradient refractive index medium lens is used as a main body, thereby having the advantages of good directionality.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI

A kind of heat preservation rigid melamine foam with low water absorption rate and preparation method thereof

The invention relates to a heat-preserving rigid melamine foam with a low water absorption rate and a preparation method thereof, belonging to the technical field of polymer materials. The density of the low water absorption thermal insulation rigid melamine foam is less than 53kg / m 3 , The water absorption rate is as low as 6.7%, the thermal conductivity is as low as 0.034W / m·K, the closed cell rate is 80%, the compressive strength is 300kPa, and the limiting oxygen index is as high as 35%. In the preparation process of the present invention, small molecules of short-chain hydrophobic alcohols and solid fillers are added; side groups of the molecular chains of the melamine resin prepolymer modified by small molecules of short-chain hydrophobic alcohols are introduced into "hanging" short-chain hydrophobic alkyl groups, Effectively improve the hydrophobicity of the resin, and at the same time, the increase of the "hanging" short chain content with better flexibility can improve the toughness of the resin and reduce the foam pulverization rate; in the preparation stage of the modified hydrophobic melamine prepolymer foaming liquid, solid fillers are added as The nucleating agent can adjust the cell structure, and can effectively reduce the free energy barrier of the growth of the cell nuclei to promote the heterogeneous nucleation, and prepare the low water absorption thermal insulation rigid melamine foam with small cell size and uniform distribution.
Owner:HEFEI UNIV OF TECH

Method for preparing display substrate and display substrate

The embodiment of the invention provides a method for preparing a display substrate and a display substrate. The preparation method comprises: providing a substrate and sequentially forming a resin layer arranged between the substrate and a hardened layer and a hardened layer on the substrate; arranging a baffle at one side, facing the hardened layer; arranging a plurality of hollow structures having different width in a first direction parallel to the baffle at the baffle; moving the baffle or the substrate bank and forth in the first direction; carrying out plasma etching on the hardened layer and the resin layer at one side, away from the substrate, of the substrate by using a plasma device to obtain a resin layer having a wedge-shaped structure; and depositing a light-reflecting layeron the resin layer to obtain a display substrate. Therefore, the reflective surface of the resin layer becomes smooth; the effective reflection surface is increased; and thus the utilization ratio oflight is improved.
Owner:BOE TECH GRP CO LTD
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