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31results about How to "Improve light transmission properties" patented technology
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Optical element having periodic structure and optical apparatus using the same
InactiveUS8009355B2Good effectImprove light transmission propertiesPolarising elementsRefractive indexEngineering
An optical element includes a first periodic structure portion being formed on a base portion and having a one-dimensional periodic structure in which a first medium and a second medium with a smaller refractive index than that of the first medium are alternately disposed in a first direction, and a second periodic structure portion being formed on the first periodic structure portion and having a periodic structure in which a third medium and a fourth medium with a smaller refractive index than that of the third medium are alternately disposed in the first direction. At an interface between the first and second periodic structure portions, a ratio of the first medium in the first periodic structure portion and a ratio of the third medium in the second periodic structure portion are different from each other. The element has a good form birefringence effect and a high reflection-suppressing effect.
Owner:CANON KK
Bidirectional wave absorption transparent electromagnetic shielding device based on graphene meshes and transparent conductive films
ActiveCN106413362AStrong light transmission performanceElectromagnetic shielding light transmission performanceMagnetic/electric field screeningGlass/slag layered productsCvd grapheneElectrically conductive
A bidirectional wave absorption transparent electromagnetic shielding device based on graphene meshes and transparent conductive films belongs to the optical transparent member electromagnetic shielding technology field and utilizes the different light transmission and microwave shielding characteristics performed by the graphene mesh films when the graphene mesh films have different mesh unit hole area ratios to organically combine the low-reflection and partial absorption microwave characteristics of the graphene mesh films with the strong electromagnetic reflection characteristics of the high-light transmission conductive films, and the graphene mesh films are placed at the two sides of the transparent conductive films, thereby forming a multilayer structure. The transparent conductive films are used as the transparent reflection layers, and N layers of graphene mesh films separated by the transparent mediums are used as the transparent absorption layers. By the structure, the radio frequency radiation coming from the two sides can penetrate the transparent absorption layers simultaneously and repeatedly to be absorbed strongly, so that the strong shielding and low-reflection characteristics are realized, and the visible light has a high light transmission rate by transmitting the multilayer structure once. The electromagnetic shielding optical window solves the problem that a conventional transparent electromagnetic shielding method can not consider the bidirectional low-electromagnetic reflection, the strong electromagnetic shielding and the high light transmission simultaneously.
Owner:HARBIN INST OF TECH
Polarizing element
ActiveCN107407770AImprove light transmission propertiesPolarising elementsReflective layerLength wave
This polarizing element is provided with a transparent substrate and lattice shaped protruding parts arranged at a pitch smaller than the wavelength of light in the region used on the transparent substrate and extending in a prescribed direction. The lattice shaped protruding parts include a reflective layer formed on the transparent substrate and grid tip parts which are formed such that the side surfaces thereof are inclined in the direction that the tip parts taper.
Owner:DEXERIALS CORP
Electromagnetic shielding optical window based on graphene/transparent conductive film composite structure
InactiveCN106413358AGood light transmissionLow electromagnetic reflectionMagnetic/electric field screeningGlass/slag layered productsMicrowaveElectromagnetic shielding
An electromagnetic shielding optical window based on a graphene / transparent conductive film composite structure belongs to the optical transparent member electromagnetic shielding technology field, and organically combines the low-reflection and partial absorption microwave characteristics of the graphene mesh films with the strong electromagnetic reflection characteristics of the high-light transmission conductive films, thereby forming a multilayer structure. The transparent conductive films are used as the transparent reflection layers, and 1-6 layers of graphene films separated by the transparent mediums are used as the transparent absorption layers. By the structure, the radio frequency radiation can penetrate the transparent absorption layers repeatedly to be absorbed strongly, so that the strong electromagnetic shielding and low electromagnetic reflection characteristics are realized, and the visible light has a high light transmission rate by transmitting the multilayer structure once. The electromagnetic shielding optical window of the present invention solves the problem that a conventional transparent electromagnetic shielding method can not consider the low-electromagnetic reflection, the strong electromagnetic shielding and the high light transmission simultaneously, and has the characteristics of high light transmission, strong electromagnetic shielding and low electromagnetic reflection.
Owner:HARBIN INST OF TECH
Polarizing plate, method of manufacturing the same, and optical apparatus
ActiveUS20180180786A1Improve light transmission propertiesImprove controllabilityPolarising elementsWire gridReflective layer
Provided are a polarizing plate having high transmittance characteristics and excellent controllability of reflectance characteristics, a method of manufacturing the polarizing plate, and an optical apparatus including the polarizing plate. A polarizing plate having a wire grid structure includes a transparent substrate and grid-shaped protrusions that are arranged on the transparent substrate at a pitch shorter than a wavelength of light in a use band and extend in a predetermined direction, the grid-shaped protrusion includes, in order from the transparent substrate side, a pedestal, a reflection layer, a dielectric layer, and an absorption layer, and the pedestal has a trapezoidal shape when viewed from the extending direction of the grid-shaped protrusions.
Owner:DEXERIALS CORP
Graphene mesh/double-layer metal mesh transparent electromagnetic shielding device having bidirectional wave-absorbing effect
ActiveCN106659099AHigh Transmittance Electromagnetic ReflectionLow electromagnetic reflectionMagnetic/electric field screeningMetal layered productsMetal meshOptical transmittance
The invention provides a graphene mesh / double-layer metal mesh transparent electromagnetic shielding device having a bidirectional wave-absorbing effect, belongs to the technical field of optical transparent part electromagnetic shielding, the electromagnetic shielding device utilizes different light-transmitting and microwave shielding characteristics which are shown when a graphene mesh film has different mesh unit hole area ratios, characteristics of low reflection and partial absorption of microwaves of the graphene mesh film and a strong electromagnetic reflection characteristic of a high-light-transmitting double-layer metal mesh are organically combined, and the multilayer graphene mesh film is arranged at two sides of the double-layer metal mesh to form a multilayer stacked structure; the double-layer metal mesh is used as a transparent reflecting layer, and N layers of graphene mesh films separated by transparent mediums are used as transparent absorbing layers; the structure can enable radio frequency radiation at two sides of the device to pass through the absorbing layers for many times to be strongly absorbed, bidirectional strong shielding and low reflection characteristics are realized, and visible light only penetrates through the stacked structure only once and a high light transmittance is achieved; and the electromagnetic shielding device solves the problem that an existing transparent electromagnetic shielding method cannot give consideration to bidirectional low electromagnetic reflection, strong electromagnetic shielding and high light transmittance at the same time.
Owner:HARBIN INST OF TECH
Optical element having periodic structure and optical apparatus using the same
InactiveUS20080130110A1Good form birefringence effectImprove light transmission propertiesPolarising elementsEngineeringRefractive index
An optical element includes a first periodic structure portion being formed on a base portion and having a one-dimensional periodic structure in which a first medium and a second medium with a smaller refractive index than that of the first medium are alternately disposed in a first direction, and a second periodic structure portion being formed on the first periodic structure portion and having a periodic structure in which a third medium and a fourth medium with a smaller refractive index than that of the third medium are alternately disposed in the first direction. At an interface between the first and second periodic structure portions, a ratio of the first medium in the first periodic structure portion and a ratio of the third medium in the second periodic structure portion are different from each other. The element has a good form birefringence effect and a high reflection-suppressing effect.
Owner:CANON KK
Polarizing plate, method of manufacturing the same, and optical apparatus
ActiveUS20180180785A1Improve light transmission propertiesImprove controllabilityPolarising elementsElectricityWire grid
Provided are a polarizing plate having high transmittance characteristics and excellent controllability of reflectance characteristics, a method of manufacturing the polarizing plate, and an optical apparatus including the polarizing plate. A polarizing plate having a wire grid structure includes a transparent substrate and grid-shaped protrusions that are arranged on the transparent substrate at a pitch shorter than a wavelength of light in a use band and extend in a predetermined direction, the grid-shaped protrusion includes, in order from the transparent substrate side, a reflection layer, a dielectric layer, and an absorption layer, a width of the reflection layer is smaller than a width of the dielectric layer, and a grid tip formed at a tip of the grid-shaped protrusion has a tapered shape where a side face thereof is inclined in such a direction that a width thereof is decreased toward a tip side when viewed from the predetermined direction.
Owner:DEXERIALS CORP
Driving method and driving circuit for color liquid crystal display
InactiveUS20060071894A1Improve light transmission propertiesQuality improvementTelevision system detailsStatic indicating devicesLiquid-crystal displayTransmittance
Owner:VISTA PEAK VENTURES LLC
Dust-free diffusion plate for liquid crystal display units and method for producing the same
InactiveUS20090233011A1Improve antistatic performanceImprove light transmission propertiesLiquid crystal compositionsDiffusing elementsDiffusionLiquid-crystal display
Provided is a dust-free diffusion plate for a liquid crystal display (LCD) manufactured by coating and drying a conductive material to a thickness of no more than 2D on a surface of the diffusion plate to prevent degradation of image quality due to dust build-up on the diffusion plate.
Owner:SUH KWANG SUCK
Anti-reflection film coating liquid preparation method
InactiveCN108676393APrevent oxidationEasy to cleanAntifouling/underwater paintsPaints with biocidesVanadium dioxidePolymer science
The invention discloses an anti-reflection film coating liquid preparation method and belongs to the technical field of film coating liquid preparation. A tea seed extracting solution of the preparation method disclosed by the invention contains rich oxidized antibacterial substances; permanent electrostatic fields exist at the peripheries of added tourmaline particles, so that metal is preventedfrom being oxidized, electrons are prevented from being taken away, and the metal is prevented from being corroded; thus, the film coating liquid has certain salt spray resistance. The tea seed extracting solution in the preparation method disclosed by the invention is subjected to oxidizing treatment, so that the surface of the tea seed extracting solution carries many hydrophilic groups. Tea saponin in the tea seed extracting solution of the preparation method disclosed by the invention is a main green natural non-ionic surface active agent and is also called as theasaponin, oil and water can be separated on the surface of a film coating matrix, and a good cleaning effect on a film layer is generated. By means of the film coating liquid disclosed by the invention, a titanium dioxide / vanadium dioxide composite membrane layer can be formed; a vanadium dioxide crystal layer can obstruct high-energy infrared light, and titanium dioxide can improve transmittance of a film layer to visiblelight; thus, light transmittance characteristic is enhanced, the film layer has a temperature adjusting capacity when applied to glass, and the film layer has a wide application prospect.
Owner:陈建峰
Light receiving device including transparent electrode and method of manufacturing light receiving device
ActiveUS9793423B2Improve light transmission propertiesGood electric characteristicFinal product manufactureSolid-state devicesHigh resistanceElectrical resistance and conductance
Provided is a light receiving device including a transparent electrode and a method of manufacturing the light receiving device. A transparent electrode is formed so as to be in contact with a photoelectric conversion layer which absorbs light to generate electric energy, and the transparent electrode is formed by using a resistance change material which has high transmittance with respect to light in the entire wavelength range and of which resistance state is to be changed from a high resistance state into a low resistance state if a voltage exceeding a threshold voltage inherent in the resistance change material so that conducting filaments are formed in the transparent electrode. Accordingly, since the transparent electrode has high transmittance characteristic with respect to the light in the entire wavelength range and high conductivity characteristic, the light receiving device also has high photoelectric conversion efficiency and good electric characteristics.
Owner:KOREA UNIV RES & BUSINESS FOUND
Dual-layer metal mesh strong electromagnetic shielding optical window possessing graphene interlayers and dual external absorption layers
ActiveCN106413363ARealize the shielding effectImplement reflectionMagnetic/electric field screeningGlass/slag layered productsElectromagnetic shieldingReflective layer
A dual-layer metal mesh strong electromagnetic shielding optical window possessing graphene interlayers and dual external absorption layers belongs to the optical transparent member electromagnetic shielding technology field. The core devices of the electromagnetic shielding optical window are first, second and third transparent absorption layers and a transparent reflection layer, the first and third transparent absorption layers are both composed of 1-6 layers graphene films separated by the transparent mediums, the second transparent absorption layer is composed of 1-3 layers of graphene films separated by the transparent mediums, and the metal meshes A and B form the transparent reflection layer. The first and third transparent absorption layers are placed at the two sides of the transparent reflection layer respectively, and the second transparent absorption layer is placed between the metal meshes A and B. The dual-layer metal mesh strong electromagnetic shielding optical window possessing the graphene interlayers and the dual external absorption layers solves the problem that a conventional transparent electromagnetic shielding method can not consider the low-electromagnetic reflection, the bidirectional strong electromagnetic shielding and the high light transmission simultaneously, and has the characteristics of high light transmission performance, bidirectional strong electromagnetic shielding and low electromagnetic reflection.
Owner:HARBIN INST OF TECH
Driving method and driving circuit for color liquid crystal display
InactiveUS7671829B2Improve light transmission propertiesQuality improvementTelevision system detailsStatic indicating devicesLiquid-crystal displayTransmittance
A driving method for a color liquid crystal display which drives the color liquid crystal display based on a video red signal, a video green signal and a video blue signal by independently applying a gamma compensation to a clamped video red signal, a clamped video green signal and a clamped video blue signal in gamma compensating circuits in order to make suitable to a red transmittance characteristic, a green transmittance characteristic and a blue transmittance characteristic. With this operation, it is possible to carry out an optimal gamma compensation suitable to a characteristic of the color liquid crystal display and to remove a gradation batter occurring in a specific color.
Owner:VISTA PEAK VENTURES LLC
Polarizing plate and optical apparatus provided with the same
ActiveUS10705285B2Improve light transmission propertiesIncreased durabilityMechanical apparatusPolarising elementsWire gridEngineering
Provided is a polarizing plate having high transmittance characteristics and high durability.A polarizing plate 1 with a wire grid structure includes a transparent substrate 10, and a grid-shaped projecting portion 11 which is arranged on the transparent substrate 10 at a pitch shorter than a wavelength of light in a used bandwidth and extends in a predetermined direction. The grid-shaped projecting portion 11 includes a reflection layer 12, a dielectric layer 13, and an absorption layer 14 in this order from the side of the transparent substrate 10. A protection layer 15 is provided on a surface of the grid-shaped projecting portion 11, and covers all of an upper surface and a side surface of the absorption layer 14 and all of a side surface of the dielectric layer 13, and at least a part of a side surface of the reflection layer 12. The protection layer 15 on the side surface of the reflection layer 12 is thinner than the protection layer 15 on the side surface of the absorption layer 14.
Owner:DEXERIALS CORP
Graphene grid and transparent conductive film two-way absorbing transparent electromagnetic shielding device
ActiveCN106413362BWith two-way low electromagnetic reflectionStrong electromagnetic shieldingMagnetic/electric field screeningGlass/slag layered productsMicrowave shieldingMaterials science
A bidirectional wave absorption transparent electromagnetic shielding device based on graphene meshes and transparent conductive films belongs to the optical transparent member electromagnetic shielding technology field and utilizes the different light transmission and microwave shielding characteristics performed by the graphene mesh films when the graphene mesh films have different mesh unit hole area ratios to organically combine the low-reflection and partial absorption microwave characteristics of the graphene mesh films with the strong electromagnetic reflection characteristics of the high-light transmission conductive films, and the graphene mesh films are placed at the two sides of the transparent conductive films, thereby forming a multilayer structure. The transparent conductive films are used as the transparent reflection layers, and N layers of graphene mesh films separated by the transparent mediums are used as the transparent absorption layers. By the structure, the radio frequency radiation coming from the two sides can penetrate the transparent absorption layers simultaneously and repeatedly to be absorbed strongly, so that the strong shielding and low-reflection characteristics are realized, and the visible light has a high light transmission rate by transmitting the multilayer structure once. The electromagnetic shielding optical window solves the problem that a conventional transparent electromagnetic shielding method can not consider the bidirectional low-electromagnetic reflection, the strong electromagnetic shielding and the high light transmission simultaneously.
Owner:HARBIN INST OF TECH
Transparent bidirectional wave-absorbing electromagnetic shielding device with graphene and double-layer metal grid
ActiveCN106714533BWith two-way strong electromagnetic shieldingGood light transmissionMagnetic/electric field screeningMetal layered productsMaterials scienceAbsorption layer
The invention, which belongs to the technical field of electromagnetic shielding of an optical transparent element, provides a graphene / double-layer-metal-mesh--included transparent electromagnetic shielding device with a bidirectional wave absorbing effect. The electromagnetic shielding device employs a metal mesh A and a metal mesh B as transparent reflection layers; 1 to 6 layers of graphene films separated by transparent mediums are used as transparent absorption layers A and B; and the transparent absorption layers A and B are arranged at the two sides of transparent reflection layers. On the basis of organic combination of low reflection and partial microwave absorption characteristics of the graphene film with the strong electromagnetic reflection characteristic of the high-light-transmittance dual-layer metal mesh, radio-frequency radiation at two sides of the device can pass through the absorption layers by multiple times and thus can be absorbed strongly to realize bidirectional strong shielding and low reflection characteristics and visible light only passes through the multi-layer structure once to realize high light transmittance. With the electromagnetic shielding device, problems that bidirectional strong electromagnetic shielding, high light transmission and low electromagnetic reflection can not be realized simultaneously by the existing transparent electromagnetic shielding method can be solved; and thus the electromagnetic shielding device has characteristics of bidirectional high light transmittance, strong electromagnetic shielding, and low electromagnetic reflection.
Owner:HARBIN INST OF TECH
Sterile mouse preparation and breeding integrated isolation device
ActiveCN114190285AEasy for daily feedingImprove the efficiency of large-scale production and preparationAnimal housingEnclosures/chambersAnimal scienceMicroscope objective
The invention discloses a sterile mouse preparation and breeding integrated isolation device, which comprises a mobile operation table, and a hard transparent glass isolator, a soft transparent isolator and a stereoscopic microscope are placed on the top end surface of the mobile operation table, an opening of a first hard glass cylinder on the hard transparent glass isolator is connected with a connecting sleeve on the soft transparent isolator in a sealing mode, and the hard transparent glass isolator is arranged between an objective table and an objective lens of the stereoscopic microscope. A first glove sleeve and a second glove sleeve are arranged on the side walls, close to an operator, of the hard transparent glass isolator and the soft transparent isolator respectively, and a first operation glove and a second operation glove are arranged in the first glove sleeve and the second glove sleeve respectively. According to the sterile mouse preparation and breeding integrated isolation device, the sterile mouse preparation process and the sterile mouse breeding process are combined in a unified mode, the use cost is low, the structure is simple, the size is small, operation is convenient, and the large-scale production and preparation efficiency of the sterile mouse can be remarkably improved.
Owner:HUAZHONG AGRI UNIV
Vehicle-mounted active safe forward-looking lens
PendingCN110927934AImprove light transmission propertiesHigh Definition Imaging CapabilityOptical elementsInternal combustion piston enginesIn vehicleEngineering
The invention provides a vehicle-mounted active safety forward-looking lens which can meet the field requirement of forward-looking active safety. The vehicle-mounted active safety forward-looking lens comprises: a first lens which is a lens with a convex object plane side and a concave image plane side; a second lens with a concave object plane side and a convex image plane side ; a third lens isa lens with a convex object plane side and a convex image plane side; a fourth lens which is a lens with a convex object plane side and a convex image plane side; a fifth lens which is a lens with aconcave object plane side and a convex image plane side; a sixth lens which is a lens with a convex object plane side and a concave image plane side; wherein the first lens, the second lens, the thirdlens, the fourth lens, the fifth lens and the sixth lens are arranged from the object side to the image side in order, and the fourth lens and the fifth lens are cemented into a doublet lens; and thevehicle-mounted active safety forward-looking lens satisfies the following conditions: -2(f1 / f<-1, 60<f2 / f<100, 1<f3 / f<2, -5<f4 / f<1, -2<f5 / f<-1, 5<f6 / f<10, and |DIST0.5|>|DIST1.0*30%|, wherein f1 tof6 are focal lengths of the first to sixth lenses, f is a focal length value of the vehicle-mounted active safety foresight lens, dIST0.5 is a semi-imaging optical distortion value of the vehicle-mounted active safety forward-looking lens, and DIST1.0 is a full-imaging optical distortion value of the vehicle-mounted active safety forward-looking lens.
Owner:SIRTEC INT SUZHOU
Organic electroluminescence display component and making method thereof
InactiveCN1522100AImprove light transmission propertiesImprove color balanceElectrical apparatusElectroluminescent light sourcesOrganic electroluminescenceWavelength range
The invention discloses an organic electroluminescent display assembly and process for manufacturing the same, wherein the organic electroluminescent display assembly comprises a glass substrate, an optical compensation film formed on the surface of the glass substrate, an anode conductive layer formed on the surface of the optical compensation film, a laminated structure formed on the surface of the anode conductive layer and composed of organic material, and a cathode conductive layer formed on the surface of the laminated structure. The assembly according to the invention can increase the light transmission of the organic electroluminescent display assembly to specific wavelength range to around 90%.
Owner:AU OPTRONICS CORP
Double-layer mesh grid strong electromagnetic shielding light window with graphene interlayer and double outer absorbing layers
ActiveCN106413363BRealize the shielding effectImplement reflectionMagnetic/electric field screeningGlass/slag layered productsBi layerThin membrane
A dual-layer metal mesh strong electromagnetic shielding optical window possessing graphene interlayers and dual external absorption layers belongs to the optical transparent member electromagnetic shielding technology field. The core devices of the electromagnetic shielding optical window are first, second and third transparent absorption layers and a transparent reflection layer, the first and third transparent absorption layers are both composed of 1-6 layers graphene films separated by the transparent mediums, the second transparent absorption layer is composed of 1-3 layers of graphene films separated by the transparent mediums, and the metal meshes A and B form the transparent reflection layer. The first and third transparent absorption layers are placed at the two sides of the transparent reflection layer respectively, and the second transparent absorption layer is placed between the metal meshes A and B. The dual-layer metal mesh strong electromagnetic shielding optical window possessing the graphene interlayers and the dual external absorption layers solves the problem that a conventional transparent electromagnetic shielding method can not consider the low-electromagnetic reflection, the bidirectional strong electromagnetic shielding and the high light transmission simultaneously, and has the characteristics of high light transmission performance, bidirectional strong electromagnetic shielding and low electromagnetic reflection.
Owner:HARBIN INST OF TECH
Polarizing plate, method of manufacturing the same, and optical apparatus
ActiveUS10209420B2Improve light transmission propertiesImprove controllabilityPolarising elementsWire gridReflective layer
Provided are a polarizing plate having high transmittance characteristics and excellent controllability of reflectance characteristics, a method of manufacturing the polarizing plate, and an optical apparatus including the polarizing plate. A polarizing plate having a wire grid structure includes a transparent substrate and grid-shaped protrusions that are arranged on the transparent substrate at a pitch shorter than a wavelength of light in a use band and extend in a predetermined direction, the grid-shaped protrusion includes, in order from the transparent substrate side, a reflection layer, a dielectric layer, and an absorption layer, a width of the reflection layer is smaller than a width of the dielectric layer, and a grid tip formed at a tip of the grid-shaped protrusion has a tapered shape where a side face thereof is inclined in such a direction that a width thereof is decreased toward a tip side when viewed from the predetermined direction.
Owner:DEXERIALS CORP
Organic electroluminescence display component and making method thereof
InactiveCN100373654CImprove light transmission propertiesImprove color balanceElectroluminescent light sourcesSolid-state devicesOrganic electroluminescenceWavelength range
The invention discloses an organic electroluminescent display assembly and process for manufacturing the same, wherein the organic electroluminescent display assembly comprises a glass substrate, an optical compensation film formed on the surface of the glass substrate, an anode conductive layer formed on the surface of the optical compensation film, a laminated structure formed on the surface of the anode conductive layer and composed of organic material, and a cathode conductive layer formed on the surface of the laminated structure. The assembly according to the invention can increase the light transmission of the organic electroluminescent display assembly to specific wavelength range to around 90%.
Owner:AU OPTRONICS CORP
Bidirectional wave-absorbing strong electromagnetic shielding light window with multi-layer graphene grid/metal grid laminated structure
ActiveCN106413359BWith two-way strong electromagnetic shieldingLow electromagnetic reflectionMagnetic/electric field screeningGlass/slag layered productsMicrowave shieldingMaterials science
Owner:HARBIN INST OF TECH
Graphene grid and double-layer metal grid transparent electromagnetic shielding device
ActiveCN106659099BWith two-way strong electromagnetic shieldingGood light transmissionMagnetic/electric field screeningMetal layered productsMicrowave shieldingMaterials science
The invention provides a graphene mesh / double-layer metal mesh transparent electromagnetic shielding device having a bidirectional wave-absorbing effect, belongs to the technical field of optical transparent part electromagnetic shielding, the electromagnetic shielding device utilizes different light-transmitting and microwave shielding characteristics which are shown when a graphene mesh film has different mesh unit hole area ratios, characteristics of low reflection and partial absorption of microwaves of the graphene mesh film and a strong electromagnetic reflection characteristic of a high-light-transmitting double-layer metal mesh are organically combined, and the multilayer graphene mesh film is arranged at two sides of the double-layer metal mesh to form a multilayer stacked structure; the double-layer metal mesh is used as a transparent reflecting layer, and N layers of graphene mesh films separated by transparent mediums are used as transparent absorbing layers; the structure can enable radio frequency radiation at two sides of the device to pass through the absorbing layers for many times to be strongly absorbed, bidirectional strong shielding and low reflection characteristics are realized, and visible light only penetrates through the stacked structure only once and a high light transmittance is achieved; and the electromagnetic shielding device solves the problem that an existing transparent electromagnetic shielding method cannot give consideration to bidirectional low electromagnetic reflection, strong electromagnetic shielding and high light transmittance at the same time.
Owner:HARBIN INST OF TECH
Anti-reflection glass substrate and method for manufacturing same
ActiveUS10295705B2Impart antifouling characteristicReduce pollutionDecorative surface effectsCoatingsPorosityOptoelectronics
Provided is an anti-reflection glass substrate comprising an anti-reflection layer having a predetermined thickness from the surface, the anti-reflection glass substrate being characterized in that the anti-reflection layer has at least two layers of a first layer and a second layer successively provided in the depth direction from the surface, each of the first layer and the second layer has a plurality of pores, and the porosity of the first layer is smaller than the porosity of the second layer. In addition, provided is a method for manufacturing an anti-reflection glass substrate, the method successively comprising a step of etching a glass substrate using a first etching liquid and a step of etching the glass substrate using a second etching liquid, the method being characterized in that the molarity of multivalent metal ions of the first etching liquid is larger than the molarity of multivalent metal ions of the second etching liquid. Provided is a method for manufacturing an anti-reflection glass substrate, the method successively comprising a step of etching a glass substrate using a first etching liquid and a step of etching the glass substrate using a second etching liquid, the method being characterized in that the molarity of hydroxides and fluorides of the first etching liquid is smaller than the molarity of hydroxides and fluorides of the second etching liquid.
Owner:SAMSUNG CORNING PRECISION MATERIALS CO LTD
polarizing element
ActiveCN107407770BImprove light transmission propertiesPolarising elementsReflective layerMechanical engineering
Owner:DEXERIALS CORP
Electromagnetic-shielding light window with double-layer metal mesh grid with graphene mesh interlayer
ActiveCN106413360BStrong electromagnetic shieldingLow electromagnetic reflectionMagnetic/electric field screeningGlass/slag layered productsThin membraneGraphite
A dual-layer metal mesh electromagnetic shielding optical window possessing graphene mesh interlayers belongs to the optical transparent member electromagnetic shielding technology field and utilizes the different light transmission and microwave shielding characteristics performed by the graphene mesh films when the graphene mesh films have different mesh unit hole area ratios to organically combine the low-reflection and partial absorption microwave characteristics of the graphene mesh films with the strong electromagnetic reflection characteristics of the high-light transmission conductive films, thereby forming a multilayer structure. The dual-layer metal mesh electromagnetic shielding optical window is formed by assembling a first transparent absorption layer, a transparent medium A, a metal mesh A, a transparent medium B, a second transparent absorption layer, a transparent medium C and a metal mesh B which are orderly laminated and parallelly configured. The first transparent absorption layers is composed of N layers of graphene mesh films separated by transparent mediums, the second transparent absorption layers is composed of 1-6 layers of graphene mesh films separated by transparent mediums, and the metal meshes A and B form a transparent reflection layer. The dual-layer metal mesh electromagnetic shielding optical window possessing the graphene mesh interlayers of the present invention solves the problem that a conventional transparent electromagnetic shielding technology can not consider the low-electromagnetic reflection, the strong electromagnetic shielding and the high light transmission simultaneously, and has the characteristics of high light transmission performance, strong electromagnetic shielding and low electromagnetic reflection.
Owner:HARBIN INST OF TECH
Electromagnetic Shielding Light Window with Double Graphene Absorber Layer and Double-layer Metal Grid Structure
ActiveCN106413361BStrong electromagnetic shieldingLow electromagnetic reflectionMagnetic/electric field screeningGlass/slag layered productsBi layerThin membrane
An electromagnetic shielding optical window possessing dual graphene absorption layers and a dual-layer metal mesh structure belongs to the optical transparent member electromagnetic shielding technology field and is formed by assembling a first transparent absorption layer, a transparent medium A, a metal mesh A, a transparent medium B, a second transparent absorption layer, a transparent medium C and a metal mesh B which are orderly laminated and parallelly configured. The first transparent absorption layers is composed of 1-6 layers of graphene mesh films separated by transparent mediums, the second transparent absorption layers is composed of 1-3 layers of graphene mesh films separated by transparent mediums, and the metal meshes A and B form a transparent reflection layer. The electromagnetic shielding optical window of the present invention solves the problem that a conventional transparent electromagnetic shielding technology can not consider the low-electromagnetic reflection, the strong electromagnetic shielding and the high light transmission simultaneously, and has the characteristics of high light transmission performance, strong electromagnetic shielding and low electromagnetic reflection.
Owner:HARBIN INST OF TECH
A kind of preparation method of alpha phase gallium oxide thin film
ActiveCN112126897BThe preparation method is simple and easyUniform particle size distributionFinal product manufactureVacuum evaporation coatingRadio frequencyVacuum chamber
A preparation method of an alpha phase gallium oxide film, comprising the following steps: cleaning an m-plane sapphire substrate, drying it and placing it in a substrate tray; loading the substrate into a vacuum chamber, and waiting for the vacuum degree of the vacuum chamber to reach 3× After 10-6 Pa, high-purity argon gas was introduced, the gas flow was controlled at 40 sccm, and the vacuum degree of the vacuum chamber was adjusted to 1Pa; for high-purity Ga 2 O 3 The ceramic target was pretreated; the film was deposited on the substrate by magnetron sputtering, the substrate temperature was 25 degrees Celsius, the radio frequency power was set to 40W, and the deposition time was 2 hours; the prepared film was placed in a tube furnace Perform post-annealing treatment, the post-annealing temperature is 500-800 degrees Celsius, and the annealing time is 2 hours. The alpha phase gallium oxide thin film prepared by the method of the invention has a large deposition area and uniform particle size distribution.
Owner:NANJING UNIV OF INFORMATION SCI & TECH
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