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340 results about "Silver mirror" patented technology
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Durable corrosion and ultraviolet-resistant silver mirror
InactiveUS6989924B1Efficient screeningRetains its specular optical efficiency and aesthetic appearanceSolar heating energyMirrorsUltravioletVisible spectral range
A corrosion and ultra violet-resistant silver mirror for use in solar reflectors; the silver layer having a film-forming protective polymer bonded thereto, and a protective shield overlay comprising a transparent multipolymer film that incorporates a UV absorber. The corrosion and ultraviolet resistant silver mirror retains spectral hemispherical reflectance and high optical clarity throughout the UV and visible spectrum when used in solar reflectors.
Owner:ALLIANCE FOR SUSTAINABLE ENERGY
Combining tomographic images in situ with direct vision using a holographic optical element
InactiveUS7559895B2Ultrasonic/sonic/infrasonic diagnosticsSurgical needlesImaging modalitiesDirect vision
A device for combining tomographic images with human vision using a half-silvered mirror to merge the visual outer surface of an object (or a robotic mock effector) with a simultaneous reflection of a tomographic image from the interior of the object. The device maybe used with various types of image modalities including ultrasound, CT, and MRI. The image capture device and the display may or may not be fixed to the semi-transparent mirror. If not fixed, the imaging device may provide a compensation device that adjusts the reflection of the displayed ultrasound on the half-silvered mirror to account for any change in the image capture device orientation or location.
Owner:UNIVERSITY OF PITTSBURGH
Nano spray plating technique for silver mirror
InactiveCN101469427AAvoid processing powerAvoid environmental problemsLiquid/solution decomposition chemical coatingSuperimposed coating processSurface layerWeather resistance
The invention provides nanometer spray plating for a silver mirror, namely obtain a high glaze metal mirror face by adopting coating technique, which is similar to the brand new decorative effect of plating. The whole technique consists of a paint bottom layer, a metal reflecting layer (spray plating layer) and a paint surface layer. The coating has excellent adhesive attraction, shock resistance, corrosion resistance, weather resistance and marresistance, has rich colors and is bright like a mirror. The nanometer spray plating can be used to various materials such as metal, resin, ABS, PC, PP+PS carbon element resin, plastic, glass, pottery and porcelain, acrylic, wood, plastic wood and calcium plastic.
Owner:汪正红
Durable silver mirror with ultra-violet thru far infra-red reflection
InactiveUS20060141272A1Excellent Environmental DurabilityAvoid platingVacuum evaporation coatingSputtering coatingGalvanic cellFar-red
A durable highly reflective silver mirror characterized by high reflectance in a broad spectral range of about 300 nm in the UV to the far infrared (˜10000 nm), as well as exceptional environmental durability. A high absorptivity metal underlayer is used which prevents the formation of a galvanic cell with a silver layer while increasing the reflectance of the silver layer. Environmentally durable overcoat layers are provided to enhance mechanical and chemical durability and protect the silver layer from corrosion and tarnishing, for use in a wide variety of surroundings or climates, including harsh or extreme environments.
Owner:LAWRENCE LIVERMORE NAT SECURITY LLC
Advanced ultraviolet-resistant silver mirrors for use in solar reflectors
InactiveUS20060181765A1Increased durabilityImprove failureSolar heating energyMirrorsSilver overlayUltraviolet
A silver mirror construction that maintains a high percentage of hemispherical reflectance throughout the UV and visible spectrum when used in solar reflectors, comprising: a) a pressure sensitive adhesive layer positioned beneath a silver overlay; b) a polymer film disposed on the silver overlay; c) an adhesive layer positioned on the polymer film; and d) a UV screening acrylic film disposed on the adhesive layer.
Owner:ALLIANCE FOR SUSTAINABLE ENERGY
Acrylic-modified alcohol acid-epoxy ester hybrid resin and paint thereof
The invention relates to an acrylic-modified alcohol acid-epoxy ester hybrid resin which is prepared by the following steps: carrying out high-temperature esterification reaction on an epoxy resin and fatty acid under the action of an esterification catalyst to obtain epoxy ester; carrying out alcoholysis on vegetable oil and polyalcohol at high temperature, cooling, and adding polybasic acid for esterification, thereby obtaining an alkyd resin; and adding acrylic monomers into the epoxy ester-alkyd resin mixed solution, and carrying out graft polymerization under the action of an initiator to obtain the hybrid resin. The hybrid resin can be used as a main film forming material to prepare a high-temperature baking varnish together with a crosslinking agent. The high-temperature baking varnish can be used as various curtain-coating mirror back paints, including silver mirror back paints, aluminum mirror back paints, glass paints and the like, can satisfy the technological requirements for application of curtain coating production lines of which the width exceeds 3m, has a stable curtain coating, and can become completely dry after being baked at 150-130 DEG C for 3-5 minutes. The product has the advantages of low-temperature quick drying, high hardness, excellent adhesive force, dampness-heat resistance, chemical resistance, salt-fog resistance and the like.
Owner:常州市弘可利办公用品有限公司 +1
Surface reinforced Raman dissemination active substrate and production process thereof
The invention relates to a surface reinforced scattering active base in the filed of laser spectrum measurement, which comprises glass substrate with mercapto treatment on the surface which deposits Ag nanometer modification inlay by silver mirror reaction. The process for preparing the base comprises substrate-hydroxylating treatment; substrate mercapto treatment and substrate surface Ag nanometer modification inlay formation.
Owner:HENAN UNIVERSITY
Preparation method of hydrophobic light trapping structure on silicon surface
ActiveCN102102227AImprove anti-reflection effectImprove efficiencyAfter-treatment detailsFinal product manufactureEtchingTrapping
The invention discloses a preparation method of a hydrophobic light trapping structure on silicon surface, belonging to the technical field of the solar cell. The method adopts the silicon wafer (100) or (111) and comprises the following steps: using hot sodium hypochlorite solution and HF to clean and obtain a clean silicon surface; corroding single crystal silicon with alkaline corrosive agent to form the texture with pyramid-shaped surface, or performing catalytic etching with precious metal nanoparticles, namely plating silver on the surface of the silicon wafer through the silver mirror reaction and soaking the silicon wafer plated with silver in acidic corrosive agent; and obtaining the light trapping structure of the antireflection layer. By adopting the light trapping structure, the emissivity can be reduced to 5% in the visible wave band from 380nm to 780nm. By adopting the method of the invention, the technological process of the precious metal nanoparticle plating can be simplified, the characteristics of normal-temperature wet etching can be maintained and the silicon surface can have higher antireflection effect. In addition, the contact angle of the surface of the silicon wafer (100) is up to 110 degrees, the silicon wafer has super hydrophobicity and the new technical means is provided for increasing the efficiencies of the silicon and silicon film solar cells.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)
High-reflection silver mirror
An environmentally stable silver containing mirror having very high reflection values over a large spectral range comprises a silver containing layer disposed on a substrate, which is covered by a zinc sulfide layer. So that the sulfur being set free during the application or during the vaporization of the zinc sulfide to be applied, does not attack the silver, at least one barrier or intermediate layer is placed between the silver containing layer and the zinc sulfide layer.
Owner:OERLIKON TRADING AG TRUEBBACH
Mirror back paint resin and spraying paint
The invention relates to mirror back paint resin and curtain flow coating. Its features are that the resin solid component includes 50-70% medium oil length alkyd resin, 20-40% multi-hydroxy acrylic acid resin, and 10-20% polyurethane resin; middle resin is formed by medium oil length alkyd resin, acrylamide, ethoxyl methacrylate, and butyl methacrylate monomer; the mirror back paint resin is formed by the middle resin and toluene diisocynate. Its viscosity is 100-300s; acid value is under 5mgKOH / g. The coating is formed by the resin, proper cross-linking resin, pigment, extender pigment, auxiliary agent, and solvent has low curing temperature, high-speed, high hardness of paint film, good flexibility, adhesive force, and chemical resistance. It can be applied to our country silver mirror production line to ensure the product quality.
Owner:TIANJIN CITY XINLIHUA COLOR MATERIAL
Preparation method of magnetic composite catalyst Ag/HNTs/Fe3O4
InactiveCN103638944AHigh catalytic activityGood magnetic response propertiesMetal/metal-oxides/metal-hydroxide catalystsNanotubeReducing agent
The invention relates to a preparation method of magnetic composite catalyst Ag / HNTs / Fe3O4, and belongs to the technical field of environmental function material preparation; a simple and effective chemical reduction method is used to prepare a Fe3O4 / Halloysite Nanotubes (HNTs / Fe3O4) magnetic composite material, then a silver nitrate solution and ammonia are mixed into a fresh silver ammonia solution as an oxidizing agent, glucose is used as a reducing agent, Ag nanoparticles are deposited on the magnetic composite material by a silver mirror reaction to prepare the magnetic composite catalyst Ag / HNTs / Fe3O4, and the magnetic composite catalyst Ag / HNTs / Fe3O4 is used for catalytic degradation of p-nitrophenol in a water solution.
Owner:JIANGSU UNIV
Durable silver mirror with ultra-violet thru far infra-red reflection
InactiveUS7838134B2Excellent Environmental DurabilityAvoid platingVacuum evaporation coatingSputtering coatingGalvanic cellUltraviolet
A durable highly reflective silver mirror characterized by high reflectance in a broad spectral range of about 300 nm in the UV to the far infrared (˜10000 nm), as well as exceptional environmental durability. A high absorptivity metal underlayer is used which prevents the formation of a galvanic cell with a silver layer while increasing the reflectance of the silver layer. Environmentally durable overcoat layers are provided to enhance mechanical and chemical durability and protect the silver layer from corrosion and tarnishing, for use in a wide variety of surroundings or climates, including harsh or extreme environments.
Owner:LAWRENCE LIVERMORE NAT SECURITY LLC
Perimeter
A diopsimeter comprises a display (1), an infrared light-emitting diode (2), a CCD camera (3), a half-silvered mirror (4), an image processing device (5), a computer (6), and an operation switch (7). The computer (6) displays a fixing target for fixing the line of sight of a subject and light stimulus targets for giving light stimulus to the pupil of the subject at predetermined positions of the display (1). The infrared light-emitting diodes (2) projects infrared radiation toward the eye ball of the subject. The CCD camera (3) images the eye ball of the subject by using the projected infrared radiation. The image processing device (5) detects the diameter of the pupil of the subject from captured image. The computer (6) measures the field of view from the variation of the detected pupil diameter. The characteristic point of the invention is that the display (1) is so constructed that the luminance of the background of the screen and the luminances of the light stimulus targets can be independently adjusted.
Owner:MATSUSHITA ELECTRIC WORKS LTD
Method for preparing two-dimensional silver nanosheets of different shapes
InactiveCN103521777AUniform particle sizeGood water solubilityRaman scatteringNanotechnologyActive agentSurface-active agents
The invention discloses a method for preparing two-dimensional silver nanosheets of different shapes. Firstly, a silver mirror reaction is adopted, glucose serves as a reducing agent, a quantitative silver-ammonia solution and the quantitative glucose solution are sequentially added into a beaker to be mixed, then cetyl trimethyl ammonium bromide serves as a surface active agent, the cetyl trimethyl ammonium bromide solution is added into the mixed solution, then high-temperature reaction is carried out on the mixed solution, and a solution of the two-dimensional silver nanosheets of the different shapes is prepared by adjusting the concentration ratio of the cetyl trimethyl ammonium bromide solution and the silver-ammonia solution. The method has the advantages that operation is easy, cost is low, equipment is simple, and the prepared silver nanosheets are uniform in grain size, good in water solubility and free of obvious gathering.
Owner:NANJING UNIV OF POSTS & TELECOMM
Method for preparing silver nano antibacterial material
InactiveCN101187018AGuaranteed normal growthSimple processVacuum evaporation coatingSputtering coatingAluminum IonAnti bacteria
The invention relates to process for preparing sliver-nanometer anti-bacteria material. The process comprises that an aluminum ion membrane is prepared on the surface of a substrate which is subsequently soaked into silver mirror reaction liquid, and then the substrate is taken out. The scheme employs that the aluminum ion membrane is prepared on the surface of the substrate, which enables the substrate to be covered with aluminum ion, and silver mirror reaction liquid is employed to produce aluminum hydroxide in ammoniated silver solution, which changes the growth velocity of different crystal surfaces of the silver, thereby inducing the growing of flaky silver nanometer slice structure, accomplishing the preparation of silver nanometer slice in a short time, and simplifying the industrial art. As the longer nanometer slice has growth vantage, the achieved nanometer slice structure is enabled to be preserved, thereby guaranteeing the regulation of the silver nanometer structure in silver nanometer anti-bacteria materials.
Owner:BOE TECH GRP CO LTD
Method and device for uniformly cladding metallic silver on surface of carbon nano tube
ActiveCN106270500ASimplify the experimental processEasy to realize continuous preparationTransportation and packagingMetal-working apparatusChemical platingDecomposition
The invention discloses a method and a device for uniformly cladding metallic silver on the surface of a carbon nano tube. The method comprises the steps of preprocessing the carbon nano tube, preparing a silver-ammonia solution and a chemical plating solution, and adopting the device provided by the invention to carry out chemical plating, wherein the device comprises a vacuum pump, a collection bottle, a quartz tube, an ultrasonic atomizer, a microwave-assisted heater, a microwave leakage prevention device and a carrier gas conveyor device; carrying out ultrasonic atomization on the two solutions, contacting and mixing the two atomized matters to react, repetitively washing powder to be neutral, and drying to obtain the carbon nano tube with the surface uniformly cladded by the metallic silver. The carbon nano tube is dispersed in spray droplets, so that the dispersibility of the carbon nano tube and silver plating is improved, the phenomenon of self-decomposition of the solution in a conventional chemical plating method, the generation of large-particle monomer silver and the occurrence of silver mirror reaction are avoided, the prepared cladding layer is uniform, and the sliver particle size is nano-scaled; the whole process is simple, the device is simple and convenient, convenient to operate, and energy-saving and environmental-friendly, and mass production can be realized.
Owner:KUNMING UNIV OF SCI & TECH
Advanced ultraviolet-resistant silver mirrors for use in solar reflectors
InactiveUS7612937B2Increased durabilityImprove failureSolar heating energyMirrorsSilver overlayVisible spectral range
Owner:ALLIANCE FOR SUSTAINABLE ENERGY
Method for forming a thin film silver mirror and method for forming coated film comprising thin silver mirror film
InactiveUS20060035018A1Increased durabilityImprove the environmentLiquid/solution decomposition chemical coatingSpecial surfacesAmmoniacal silverSpray nozzle
In forming a thin film of silver mirror on a surface of an object to be coated, a silver mirror reaction-treating solution including three solutions: an ammoniacal silver salt aqueous solution (I), an aqueous solution of caustic soda (IIa) and an aqueous solution of a carbohydrate-based reducing agent (IIb) such as glucose (fructose) are used. Immediately after the caustic soda aqueous solution (IIa) and the reducing agent aqueous solution (IIb) are mixed, the resulting mixed liquid and the ammoniacal silver salt aqueous solution (I) are independently and simultaneously sprayed onto the object. Alternatively, the mixed liquid (II) and the ammoniacal silver salt aqueous solution (I) are mixed together immediately upstream of a spraying nozzle, and the mixed liquid (III) is sprayed onto the object. Thereby, a thin film of silver mirror is formed in a thickness of around 0.01 to 0.03 μm, for example, through depositing silver by a silver mirror reaction.
Owner:ADVANCE CO LTD +1
Half-Mirror-Ornamented Key Sheet and Keytops
A key sheet and a key top of novel design such that a character or a symbol cannot be recognized visually when not illuminated and can be recognized visually only when illuminated. In the key sheet comprising a key top for pressing a key and a key pad on which a plurality of key tops are placed in a matrix and which supports them integrally through transparent adhesive, the key top is composed of a transparent material, e.g. resin or glass, and provided with a metal thin film (half-silvered mirror) on the upper or lower surfaces. Consequently, a character or a symbol cannot be recognized visually when not illuminated and can be recognized visually only when illuminated.
Owner:SUNARROW CO LTD
System for measuring surface bidirectional reflectance distribution
InactiveCN101566499AQuick measurementAvoid interferenceMirrorsPhotometryBeam splitterOptoelectronics
The invention relates to a system for measuring surface bidirectional reflectance distribution. The system is characterized in that a hemi-parabolic reflector is arranged on the surface of a sample to be measured; a light source system is arranged on one side of a main shaft in the center of the hemi-parabolic reflector, and is opposite to the inner parabolic surface; an imaging system is arranged on a shaft which is intersected with and vertical to the main shaft, and is positioned above a plain shaft; a beam splitter is arranged between the light source system and the hemi-parabolic reflector; the mirror surface of the beam splitter forms a 45-degree angle with the plain shaft; the light source system consists of a light source, a semicircular light source seat and a sliding rail; the radius of the sliding rail is twice of focal distance of a parabolic reflector, and is embedded in the upper edge of the semicircular light source seat; the light source is arranged on the semicircle sliding rail; the plain shaft is parallel to the main shaft; the beam splitter is a half-silvered mirror; the inner surface of the hemi-parabolic reflector is a reflecting coating; and the caliber of the parabolic surface is more than fourfold focal distance. The system can complete measurement of surface bidirectional reflectance distribution in short time, and has smaller repeatability error.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Mirror back lacquer resin and mirror back lacquer
The invention relates to mirror back paint resin and mirror back paint thereof. The mirror back paint resin comprises the following components with the following weight percentage: dry oil or dry oleic acid is 20.0 to 50.0 percent, polyatomic acid is 20.0 to 50.0 percent, polyatomic alcohol is 10.0 to 40.0 percent and other component is organic solvent. The mirror back paint resin is dry alkyd resin with the acid value less than 20mgKOH / g and the solid content more than 50.0wt percent; the mirror back paint, which consists of the resin as well as the pigments, the extender pigment, the auxiliary agent, the amino resin and the organic solvent selected by the invention, has quick solidifying, high paint film rigidity, strong adhesive force and excellent chemical corrosion resistance; therefore, the mirror back paint is suitable to be used in the production line of the prior glass silver mirror.
Owner:SHANGHAI JIAO TONG UNIV
Optical device structure unit of visible light wave band transform and optical device
InactiveCN106054287AImplement exception reflectionImprove usabilityPolarising elementsLight beamWavelength
The present invention provides an optical device structure unit of visible light wave band transform and an optical device. The optical device structure unit of visible light wave band transform comprises an antenna formed by a TiO2 material, a silver mirror, and a silicon dioxide substrate, wherein an antenna structure is at a top layer, the silver mirror is in the middle, and a silicon dioxide substrate material is at the bottom, the width size a of the antenna is between 160nm and 180nm, the length size b of the antenna is between the 240nm and 370nm, the lengths and widths of the silver mirror and the silicon dioxide substrate are the same and are recorded as P, a period P=430+ / -10nm, the thickness t1 of the antenna structure is 240+ / -5nm, and the solver layer thickness t2 of the silver mirror is 300+ / -20nm. According to the optical device, a TiO2 nano antenna is used as the basic structure unit, a metasurface sub unit perfectly realizes beam abnormal reflection at the wavelength of 632nm, and the formed optical device has a high abnormal reflection conversion efficiency.
Owner:HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
Modified dry alkyd resin and mirror back curtain drenching paint
The invention relates to modified drying alkyd resin and the mirror back curtain paint thereof. The modified drying alkyd resin comprises the following components with the contents by weight percentages: 30.0 percent to 51.0 percent dry oil or dry oleic acid, 30.0 percent to 51.0 percent polybasic acid, 20.0 percent to 41.0 percent polybasic alcohol, 5.0 percent to 20.0 percent phenol-formaldehyde resin and the rest of organic solvent. The modified drying alkyd resin is the phenol-formaldehyde modified drying alkyd resin, the acid value of the resin is lower than 35mgKOH / g, the solid content is larger than 50.0 percent by weight, the mirror back paint which is composed of the resin and pigment, body pigment, additive, amino resin and organic solvent that are selected by the invention has fast curing, high hardness of paint film, good adhesion and great chemical resistance, thus being applicable to the prior production assembly line of glass silver mirrors.
Owner:SHANGHAI JIAO TONG UNIV
Preparation method of starch/nano-silver antibacterial composite film
InactiveCN102552963AEvenly distributedWide variety of sourcesAbsorbent padsBandagesComposite filmMolecular materials
The invention discloses a preparation method of a starch / nano-silver antibacterial composite film, belonging to the field of functional high molecular material science. In the composite film, starch is taken as a major raw material; by degrading and oxidizing the starch, the molecular weight of the starch is reduced, an active functional group of the starch is modified, and a low-molecular-weightstarch solution containing a reduced group is prepared; the starch film is prepared in the solution in a self-assembly way; and the starch / nano-silver antibacterial composite film is prepared by soaking the starch self-assembly film into a silver ammonia solution according to a silver mirror reacting principle. The composite film has high biocompatibility and antisepsis and sterilization properties, and is environmentally-friendly; starch is taken as a major raw material of the composite film, so that the source is rich, the price is low, and the composite film has a wide application prospecton the aspect of medical antibacterial materials; and meanwhile, a preparation process of the composite film is simple, and has low equipment requirements.
Owner:UNIV OF SCI & TECH BEIJING
Weather-resistant silver mirror and preparation method thereof
ActiveCN101776778AImprove reliabilityExtended service lifeMirrorsIntermediate frequencyReflective layer
The invention discloses a weather-resistant silver mirror which is particularly suitable for trough solar thermal power generation and a preparation method thereof. The silver mirror orderly consists of a transparent substrate, a first Al2O3 adhesive layer, an Ag reflective layer, a second Al2O3 adhesive protective layer and a SiOx protective layer. The preparation method thereof comprises the step of orderly and respectively plating the first Al2O3 adhesive layer, the Ag reflective layer, the second Al2O3 adhesive protective layer and the SiOx protective layer by adopting a multi-target intermediate frequency response vertical magnetic control sputter to prepare the weather-resistant silver mirror of the invention. The finished product of the weather-resistant silver mirror of the invention has the characteristics of high reflectivity, reliable work, long service life and the like. The preparation method of the invention has the characteristics of advance, reasonability, low cost, low energy consumption, good quality of the finished product and the like.
Owner:常州龙腾光热科技股份有限公司
Dish condensation-based solar energy secondary condensation frequency division method and device
ActiveCN102103258AReduce energy consumptionImprove balanceSolar heating energySolar heat collector controllersOptoelectronicsDual axis
Owner:ZHEJIANG UNIV
Process for preparing low temperature baking silver mirror back lacquer
InactiveCN1900189ALow baking temperatureShort baking timeInstrumentsPolyester coatingsOrganic solventLacquer
The lower temperature baked silver mirror back lacquer consists of priming lacquer and finishing paint. The priming lacquer consists of inorganic cross-linking agent, talc powder, barium sulfate, modified alkyd resin, coloring pigment, antiskimming agent, drying agent, and organic solvent in certain weight proportion. The finishing paint consists of inorganic cross-linking agent, talc powder, barium sulfate, modified alkyd resin, coloring pigment, antiskimming agent, drying agent, leveling agent and organic solvent in certain weight proportion. The present invention has silver mirror back lacquer with baking temperature lowered to 100 deg.c, raised adhesion, high wet head resistance, high temperature change tolerance, high salt fog resistance, high salt water resistance, high corrosion resistance and good post finishing property.
Owner:SHANGHAI JIAO TONG UNIV
Method for carving back surface of silver mirror with laser
InactiveCN101612860AAvoid uniformityPicture framesDecorative surface effectsLaser engravingOptoelectronics
The invention relates to a method for carving the back surface of a silver mirror with laser, wherein the back surface of the silver mirror is plated with a metal layer which is coated with a paint layer. The method comprises the following steps: (1) laser carving equipment firstly beats away the paint layer positioned on the back surface of the silver mirror and also beats away 90-95 percent of the width of the metal layer plated on the back surface of the silver mirror; (2) and then the laser carving equipment continuously carves the back surface of the silver mirror to penetrate through the metal layer plated on the back surface of the silver mirror to obtain predetermined patterns. The invention can solve the problem of easy dreg generation or non-uniform carving effect in the processing process by using the method to carve the back surface of the silver mirror.
Owner:WUHAN NUION STEEL PROCESS
Planar lens unit based on dielectric material, planar lens and preparation method
The invention provides a planar lens unit based on dielectric material, a planar lens and a preparation method. The unit comprises an antenna made of dielectric material with high refractivity, a silica filling layer, a silver mirror and a silica substrate. The planar lens comprises the planar lens units distributed about the center, and the antennas of the planar lens units are distributed on the axis X regularly and are distributed symmetric about the axis y when y equals to zero. The method includes firstly, covering the silica substrate with a layer of silver film, and covering the surface of the silver film with the filling layer of silica and a silicon film through electron beam vapor deposition continuously; secondly, coating the silicon film with photoresist, and completing the etching and developing of the photoresist by the electron beam exposure technology; thirdly, etching the silicon film by the reactive ion beam etching technology; fourthly, performing peeling to obtain the finished nano silicon antenna. Thus, the focusing efficiency can be improved by one order of magnitude, and the high practical application value is provided.
Owner:HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
Frequency-beating device for laser frequency measurement
ActiveCN102243106AImprove signal-to-noise ratioEasy to adjustOptical measurementsFrequency counterBand-pass filter
The invention relates to a frequency-beating device for laser frequency measurement, which belongs to the technical field of photoelectrons and comprises a first collimation positioning aperture diaphragm, a second collimation positioning aperture diaphragm, a third collimation positioning aperture diaphragm, a fourth collimation positioning aperture diaphragm, a fifth collimation positioning aperture diaphragm, a sixth collimation positioning aperture diaphragm, a seventh collimation positioning aperture diaphragm, an eighth collimation positioning aperture diaphragm, a first totally-reflecting mirror, a second totally-reflecting mirror, a third totally-reflecting mirror, a fourth totally-reflecting mirror, a first half-wave plate, a second half-wave plate, a polarization light-splittingprism, a Glan prism, a raster, a silver mirror, a ninth adjustable-aperture aperture diaphragm, a gathering lens, an avalanche diode, a low-noise amplifier, a band-pass filter, a one-dimensional mobile platform and a vibration isolation optical panel. The frequency-beating device disclosed by the invention is easy to regulate and maintain a frequency-beating optical path, and can achieve the purpose of improving a signal to noise ratio of a frequency-beating signal so as to be convenient for reading by using a frequency counter and keeping the high signal to noise ratio frequency-beating signal for a long time.
Owner:BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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