Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
1276results about How to "Improve light energy utilization" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
High-speed structure illumination optical microscope system and method based on digital micromirror device
InactiveCN102540446AImaging refresh rate is fastImprove light energy utilizationMaterial analysis by optical meansMicroscopesCcd cameraOptical path
The invention relates to a high-speed structure illumination optical microscope system and a method based on a digital micromirror device. The high-speed structure illumination optical microscope system comprises an illumination light source, a light splitting prism, a structure light generator, a lens, a spectroscope, a microobjective, an objective table, a reflector, a tubular mirror and a charge coupled device (CCD) camera, wherein the light splitting prism is arranged on a light path of the illumination light source, the structure light generator is arranged on a reflection light path of the light splitting prism, the lens is arranged on a transmission light path of the light splitting prism, the spectroscope is arranged on a lens light path, the microobjective and the objective table are arranged on a light path above the tubular mirror, the reflector and the tubular mirror are arranged on a light path under the spectroscope, and the CCD camera is arranged behind the tubular mirror. The system and the method aim at the technical problems of low optical energy utilization rate and low speed of the existing structure illumination microscope and have the advantages that the image refreshing speed is high (32KHz), and the optical energy utilization rate is high (higher than 90 percent). The system and the method are more applicable to the real-time three-dimension image study and high-speed dynamic process observation of living biological cells.
Owner:XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
Method for constructing anti-reflection microstructure using single layer nanometer particle as etching blocking layer
InactiveCN101308219ASimple methodBase variableSemi-permeable membranesVolume/mass flow by thermal effectsSurface patternLight energy
The invention belongs to the surface patterning microstructure construction technique, which relates to a method for constructing a microstructure with anti-reflection performance on a foundation base by combining the self-assembly technique with the reactive ion beam etching technique. The method is to take monolayer polymeric micro-spheres, silicon dioxide micro-spheres and nano-particles of metal or metal oxides as a barrier layer and implement the RIE etching to the foundation base, then an approximate cone-shaped microstructure is constructed on the foundation base, and the structure has extreme high anti-reflection performance, thereby effectively improving the light energy utilization rate, reducing the interference of veiling glare in an optical system, increasing the optical transmittance, and further improving the sensitivity and stability of the optical system, and the method can be used for constructing large-area anti-reflection structures. The method of the invention has advantages of simple operation, changeable foundation base, strong applicability, good repeatability, low cost, high efficiency, adjustable anti-reflective applied wavelength and conformity to industrialized standards, and can be used for making photoelectric devices such as solar batteries and white light sensors.
Owner:JILIN UNIV
Display panel, display device and driving method
InactiveCN106707608AIncrease the exit angleReduce lossesStatic indicating devicesNon-linear opticsLiquid-crystal displayLight energy
The invention provides a display panel, a display device and a driving method. A first black matrix is arranged on a light outgoing side of an array substrate, a second black matrix is arranged on a light outgoing side of a colored film substrate, the first black matrix and the second black matrix are arranged at an interval, and an optical device partly positioned in a liquid crystal layer at least is arranged; when two sides of the liquid crystal layer have a voltage difference, the optical device can emergent direction of emergent light and expand emergent angle of incident light, in this way, the voltage difference on the two sides of the liquid crystal layer can be controlled, and gray scale change of the display panel and the display device can be controlled; on one side, a polaroid does not need to be arranged on the outer side of the colored film substrate, so that light energy utilization rate and light emitting efficiency are improved; on the other side, the optical device can realize effect of a liquid crystal lens partly at least, so that thickness of a liquid crystal box is reduced to certain extent, and the light emitting efficiency and the thickness of the liquid crystal box are taken into consideration at the same time.
Owner:BOE TECH GRP CO LTD
High slender spindle-shaped apple tree form and trimming method thereof
InactiveCN101755655ACrown small and tallStrong result abilityCultivating equipmentsDecapitationUltimate tensile strength
The invention discloses a high slender spindle-shaped apple tree form and a trimming method thereof. As a whole, the tree form is of high slender spindle shape. After an apple tree is formed, the crown diameter of the apple tree is small, slender and high. The apple tree is 3.5-4.0m high and the trunk of the apple tree is 0.8-0.9m high. Thirty to fifty spirally arranged small boughs are grown on the central leading trunk of the apple tree. The average length of the small boughs is 1m. The average angle between the central trunk and the small bough is 115 degrees. The top-to-bottom spacing among the small boughs on the same side is 0.25m. The trimming method of the high slender spindle-shaped tree form is simple. Other boughs require no decapitation but branch drawing except that the central trunk requires short-cutting in winters in 1-2 years. Thereby, the trimming method can be popularized in tree forms of simplified trimming and low labor strength.
Owner:NORTHWEST A & F UNIV
Near-to-eye display type optical system based on curved surface microlens array
The invention relates to a near-to-eye display type optical system based on a curved surface microlens array, wherein comprises a flexible OLED (organic light emitting diode) display element, and a microlens array manufactured on a curved surface, wherein the curved surface of the OLED and the curved surface of the microlens array are concentric spherical surfaces, the semi-diameter of the curved surface of the OLED is slightly greater, the positions of pixel units of the OLED on the spherical surface are corresponding to the positions of the microlens array one by one, the centers of the OLED and the microlens array are on the same semi-diameter after the assembling. By adopting the microlens array, the weight and the volume of an optical imaging part of the near-to-eye display optical system are obviously decreased, the whole system can be lightened and miniaturized; the microlens array closes to the OLED display unit, so that the light energy utilization rate is increased, the image brightness is increased and the influence of stray light is decreased.
Owner:CHENGDU BEST OPTO ELECTRONICS TECH
Light conducting board and backlight module
ActiveCN101078795AImprove uniformity of light emissionImprove light energy utilizationPlanar/plate-like light guidesNon-linear opticsDiffusionLight guide
The invention relates to a light guide plate, comprising a light inputting face, a light outputting face connected with the light inputting face and a reflection face opposite to the light outputting face. Whereinto, at least an extrusive diffusion part is set on the light inputting face on the light guide plate. A reflection hole is set at one side of the reflection face of light guide plate by the light diffusion part. The invention also provides a backlight module, comprising a light guide plate. The light guide plate comprises a light inputting face, a light outputting face connected with the light inputting face, a reflection face opposite to the light outputting face and at least a light source with lighting face. The light source is set at one side of light inputting face of light guide plate and the lighting face of light source is faced to the light inputting face of light guide plate. Whereinto, at least an extrusive diffusion part is set on the light inputting face on the light guide plate at the corresponding position of light source. A reflection hole is set at one side of the reflection face of light guide plate by the light diffusion part.
Owner:TSINGHUA UNIV +1
Self-adaptive optical star target imaging system based on image clearing principle
InactiveCN101078808AAvoid the cumbersome processLow costGenetic modelsTelescopesWavefront sensorImaging quality
The invention relates to an adaptive optical aster target imaging system based on image clearing principle, mainly comprising receiving telescope, spectroscope, reflection deformable mirror, high-voltage amplifier, photo detector, main control computer, control algorithm, high-speed digital processor and image-quality diagnosis system. The invention can make use aster target itself as beacon. It is not need that dear wave-front sensor is used to measure the wave-front error of beam from space target. Image clearing index, which can reflect wave-front error information, can be used to measure quality factor for system imaging ability. By controlling the reflection deformable mirror to correct the wave-front error the quality factor can achieve or approach the optimal value. The invention is provided with simple structure, easy regulation, real-time imaging, convenient control, and eliminating or decreasing bacon no-isoplanatic error. Under the condition of very strong atmospheric turbulence aster target can be imaged effectively. The cost of conventional adaptive optical system for imaging compensation of aster target can be decreased greatly.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
Efficient miniature projection optical engine
InactiveCN101943845AImprove efficiencySimple structureProjectorsColor television detailsCamera lensLight beam
Owner:BUTTERFLY TECH SHENZHEN
Self-adaptive optical system based on linear phase inversion restoration technology
InactiveCN101013195ASimple structureImprove light energy utilizationOptical measurementsOptical elementsInversion recoveryTime control
It is an adaptive optics system based on the linear phase inversion recovery technique, comprising the imaging sensor, the linear phase inversion recovery algorithm, the real-time control algorithm, the wave-front correction and drive circuit, and the reference light source. During the system running, the imaging sensor measures the residual aberration far-field image after the compensation of the wave-front correction device, and subtracting with the benchmark image to obtain the image difference vector. In advance, using the reference light source to calibrate the imaging sensor to obtain the benchmark image, and according to the corresponding relations between the wave-front correction device and the imaging sensor, obtaining the recovery matrix between the image difference vector and control voltage. Multiply the image difference vector and the recovery matrix to obtain the corresponding control voltage of the residual wave-front, and use real-time control algorithms, such as proportional integral, to obtain the control voltage of the wave-front correction device, making the wave-front aberration to be corrected. Compared the adaptive optics system based on the linear phase inversion recovery technique and the conventional adaptive optical technology, it has simple structure, high optical energy efficiency, and other advantages.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
Three-dimensional display device based on constructive interferences
ActiveCN102854630AIncrease the number ofImprove light energy utilizationSteroscopic systemsNon-linear opticsComplex amplitudeSpatial light modulator
The invention relates to a three-dimensional display device based on constructive interferences. The device comprises a coherent source device, a lamp optical system, a complex amplitude spatial light modulator, and a lens array, wherein the coherent source device is used for producing laser beams; the lamp optical system is used for receiving the laser beams and expanding the laser beams; the complex amplitude spatial light modulator is used for receiving the expanded laser beams and performing pixel-by-pixel modulation on amplitudes and phases; and the lens array is used for receiving light waves modulated by the complex amplitude spatial light modulator; a clear aperture of each lens in the lens array is designed, so that each lens can cover more than two pixels of the complex amplitude spatial light modulator; the light waves modulated by the each pixel of the complex amplitude spatial light modulator are focused by the corresponding lenses in the lens array to enlighten a subspace of a three-dimensional imaging space; the light waves modulated by different pixels are focused by different lenses in the lens array to form subspaces which are overlapped mutually; and volume elements are formed based on a constructive interference principle and constitute a discrete three-dimensional image.
Owner:李志扬
Underplanting method of traditional Chinese medicinal material radix tetrastigme
The invention discloses an underplanting method of traditional Chinese medicinal material radix tetrastigme. By the adoption of a hillside forest and pot culture intercropping planting mode, the method for carrying out underplanting of the traditional Chinese medicinal material radix tetrastigme on a large scale in the natural environment is established through the steps of forest land selection, soil selection, seedling selection, seedling culture, forest management, pest and disease integrated control and harvest. According to the method, abundant forest land resources are utilized to provide fields for forest and medicinal material intercropping, and the purposes of reducing planting cost and obtaining high-quality and high-yield radix tetrastigme tuberous roots are achieved by making full use of growing seasons based on the ecology-imitating planting principle; besides, the planting method is simple and low in cost.
Owner:XIAMEN TASMAN BIO TECH
Device and method for testing performance of blue light-emitting diode (LED) excitation fluorescent powder
ActiveCN103308499AAvoid wastingImprove the ability to capture lightFluorescence/phosphorescenceTest performanceSpectrograph
The invention discloses a device and method for testing performance of blue light-emitting diode (LED) excitation fluorescent powder and relates to fluorescent powder. The invention provides a device and method for testing performance of blue LED excitation fluorescent powder based on an integrating sphere. The testing device is provided with a fixing base, an integrating sphere, a light outlet barrel, a blue LED light source, a TEC temperature control clamp, a constant current source, a cosine collector, a spectrograph, a computer, a baffle and a standard white board. An LED with the advantages of adjustable spectrum parameters and stable illumination serves as the excitation light source, the light rays reflected by the fluorescent powder are completely collected through the characteristic that the integrating sphere device is closed, a set of fluorescent powder performance measurement system with high applicability is provided, and important luminous performance indexes, such a luminous efficacy, external quantum efficiency and light conversion efficiency, of the fluorescent powder under the actual working conditions can be conveniently and accurately measured and analyzed; meanwhile, the LED excitation light source can be flexibly replaced in the system so as to meet the requirements of different fluorescent powder on different excitation light sources, and the system has good extension performance.
Owner:XIAMEN UNIV
Method for preparing Ag:ZnIn2S4 luminescent quantum dots and photocatalyst
InactiveCN105950140AFully crystallizedGood dispersionMaterial nanotechnologyPhysical/chemical process catalystsFluorescenceZinc Acetate Dihydrate
The invention relates to the field of synthesis of nano-materials and particularly relates to a method for synthesizing a series of Ag:ZnIn2S4 luminescent quantum dots by using a simple and rapid hydrothermal method in one step. Fluorescence is adjustable in the range of 460nm to 830nm, the fluorescent life is relatively long, and the luminescent quantum dots can be applied to water-decomposed hydrogen production under visible light. The method comprises the steps of firstly, mixing and dissolving silver nitrate, indium nitrate, zinc acetate dihydrate and L-cysteine in an aqueous solution, adjusting the pH value of the solution to 8.5 by using NaOH, adding thioacetamide into the solution, carrying out ultrasonic stirring, then, carrying out a hydrothermal reaction for 4 hours at the temperature of 110 DEG C, and carrying out centrifugal drying after the reaction ends, thereby obtaining Ag@ZnIn2S4 nanocrystals of different ratios. Proven by a photocatalytic hydrogen production experiment under the visible light, the prepared composite photocatalyst has good photocatalytic activity.
Owner:JIANGSU UNIV
Grating and its backlight module
InactiveCN101149445AImprove light energy utilizationWith color separation functionDiffraction gratingsNon-linear opticsCrystal displayLight guide
A kind of grating and its negative photo mould, it belongs to the optical fluid crystal display set technology field. To solve the problem that the light energy usage of color fluid crystal display is low, this invention discloses a kind of grating and its negative photo mould, the said grating includes incident surface, the emergent surface which is relative to the incident surface and the side which connects the incident surface and the emergent surface, the grating is isochronism grating; each period of the grating has three step, the width of each step is equal; the altitude difference choice of the grating step is to make the value of sigma1,sigma2 least. The said negative photo mould includes the light source, the light plate and the said grating; the light source is set relative to the incident surface (32) of the light plate, the said light plate, grating overlays in order; this invention uses the grating to separate the color in near field based on the color separation method of diffraction optical technology, it has realized the high-usage of light energy, solved the problem that the light energy waste is large in the negative photo system, to make the incident light of the negative light source can be used, ensure the negative light source provides high efficiency light to the fluid crystal display.
Owner:TSINGHUA UNIV
LED lamp with controllable illumination direction and patterns
InactiveCN101561108ASimple mechanical structureHighly integratedPlanar light sourcesPoint-like light sourceLuminous intensityDivergence angle
The invention relates to an LED lamp with controllable illumination direction and light distribution. Special illumination patterns are projected by controlling the illumination direction and light distribution of one or more light source modules to meet the requirements of special illumination condition and patterns. The invention can be used for illumination occasions such as building scene decoration illumination, stage light illumination and indoor decoration illumination. Single light source module comprises a replaceable lens for controlling the size of LED divergence angle, a rotation driving unit for controlling the space angle distribution and light intensity variation of LED; and a signal controller for receiving illumination distributing information of users, sending relevant commands to the rotation driving unit, and controlling the rotation angel and the illumination intensity of the rotation driving unit.
Owner:ZHEJIANG UNIV
Optical image functional membrane
InactiveCN1641478AWell formedHigh strengthTelevision system detailsProjectorsParticulatesLight energy
This invention discloses a kind of light imaging function membrane. Calculated in weight percents, it comprises of the following materials and dosage. The main body material 65 to 98 percent; nanometer particulate 1 to 20 percent; assistant solvent 1 to 30 percent. The mentioned nanometer particulate are dispersed in the main body material, forming the membrane with super micro ball structure from 1 to 10 micron. This invention that the light imaging function membrane uses the large quantity of micron balls as the micro lens array to change the light way or focalize to make images. Therefore the optical structure of the light imaging function membrane is well-proportioned, and the light energy using ratio is high. The images are vivid, which efficiently keep the bright spot effect, the color demitint phenomena and the color moving phenomena within limits. It has high resolving ratio and images with high plus, wide visual angle, high luminance, and high contrast, that won't be effected by the surrounding light. So it can be applied in the new-style projecting display screen of front and back projecting.
Owner:INST OF CHEM CHINESE ACAD OF SCI
Method and system for high speed laser directly writing of diffraction light change image
ActiveCN1786748ADistance controlEasy to adjustDiffraction gratingsNon-linear opticsGratingBeam splitting
The invention relates to diffracted light image changing high speed laser write through method. It includes the following steps: do electrostatic image for incidence parallel light reaches beam-splitting element though diaphragm; gathering the beam-slitting light to produce interference fringe optical field; orderly photoengraving interference fringe with different trend to form micro light grating image. Its features are that it is adopted solid state ultraviolet laser to produce laser beam; and it is used TTL signal control to realize laser beam pulse output; the two sets of the laser beam have zero optical path difference; optical system and photoresist dry plate are moved on two one dimension directions which are vertical with each other; photolithography is adopted continual motion, continual pulse exposing type. Thus the invention realizes high speed laser write through photolithography system to make diffracted light changing image original edition manufacturing shorten between many hours to seventeen hours. It really enters industrialization application period, and is the important breakthrough of digitalization advanced manufacturing technique in laser holographic technique field.
Owner:SUZHOU UNIV +1
Preware measuring method based on linear phase position reversal development
InactiveCN1904569ASave incident light energyImprove light energy utilizationOptical measurementsHigh energyLinearity
The invention relates to a kind of wave front measure method basing on the linearity phase conversion. It calibrates to get the recovery matrix of the corresponding relation between the relative change values of the sensor far field light intensity and the coefficient in the incidence wave front, according to the parameters of the wavelength of the lamp-house, the focus of the sensor, the image element of the imaging device and so on. The sensor is calibrated by non-astigmation ideal plane before used. The non-astigmation far field image is regarded as the base image. Measure the incidence beam containing the aberration wave front to get the far field image in this condition. It detracts the base image to get the D-value of the light intensity distribution and form light intensity D-value as predefined. The recovery matrix multiplies the light intensity D-value to get the coefficient of the aberration wave front. The invention possesses the advantages of high energy utilization ratio, little calculation and rapid calculating speed. It can be applied in the high real-time requirement field, for example, self-adaptation optics.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
Catadioptric hybrid multispectral imaging system
InactiveCN102116673AImprove transmittanceSave spaceRadiation pyrometrySpectrum investigationBeam splitterImaging quality
The invention discloses a catadioptric hybrid multispectral imaging system, which comprises a primary mirror, a catadioptric dual-purpose secondary mirror, a wedge-shaped dichroic beam splitter, a medium wave or long wave infrared or medium-long wave infrared dual-waveband imaging mirror assembly, a medium wave or long wave infrared or medium-long wave infrared dichroic detector unit, a visible to near infrared waveband imaging mirror assembly, a visible to near infrared waveband beam splitting device and a detection unit thereof, a short wave infrared waveband imaging mirror assembly, and a short wave infrared waveband beam splitting device and a detection unit thereof, wherein a hole is formed at the center of the primary mirror, and the reflecting surface of the primary mirror is a concave surface; and the incident surface of the catadioptric dual-purpose secondary mirror is a convex surface. The system can realize imaging with common field of view and common aperture of a same object, improve the utilization rate of light energy, save space for the beam splitter and the system, prevent parasitic light from directly leaking into the imaging mirror assembly from the hole formed on the primary mirror, correct asymmetric aberration, be more conductive to realizing large aperture and the larger field of view and significantly improve the imaging quality. The imaging with the same optical axis and the common field of view can enable an image to be easy to register.
Owner:BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH +1
Spectrum light splitting imaging system light path based on volume hologram grating component light splitting
InactiveCN103134587AImprove light energy utilizationHigh dispersion rate of the systemRadiation pyrometrySpectrometry/spectrophotometry/monochromatorsOptical pathVolume hologram
The invention relates to a spectrum light splitting imaging system light path based on volume hologram grating component light splitting. Volume hologram grating is adopted as a light splitting component by the spectrum light splitting imaging system light path. Parallel lights which pass through a front imaging lens, a slit and a collimating lens are conducted with diffraction light splitting, after the being split, the lights coalescent, form an image on an image plane through the imaging lens and received by a charge coupled device (CCD) detector. The whole system is small in size and compact in structure, the lights can pass in and out straightly, the utilization rate of light energy is high, and the light splitting performance is good.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Display device
InactiveCN106681055AImprove luminous efficiencyReduce contentNon-linear opticsLight energyQuantum dot
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
High-quality and high-efficiency cultivation method of Xiejun Amorphophallus konjac interplanted with young rubber
InactiveCN102257918AImprove land utilizationImprove light energy utilizationSeed and root treatmentPlant protectionAmorphophallus xieiSafe storage
The invention relates to a high-efficiency cultivation method for interplanting a new konjac species Amorphophallus xiei H.Li with young rubber. Including rational site selection, site preparation, seed selection, soil and taro disinfection, sowing, reasonable close planting, water management, basal fertilizer, topdressing at seedling stage, application of tuber expansion fertilizer, weeding, integrated pest control, timely harvesting and safe storage of seed taro and other technical measures. Through the interplanting of Xie Jun Amorphophallus konjac and young rubber, the land resources under the rubber forest can be effectively used to increase the income of non-rubber production, so as to solve the problem of economic sources before the rubber is planted for 1-7 years before it is harvested, and realize the growth of the long with the short. Promote the adjustment of the agricultural industry structure, cultivate new economic growth points for the oak area, and open up a new way to promote the sustainable development of the forest area.
Owner:YUNNAN AGRICULTURAL UNIVERSITY
Photocatalytic oxidation-membrane separation circulating fluid bed reaction device
InactiveCN101875001AEfficient decompositionWell mixedWater/sewage treatment by irradiationWater/sewage treatment bu osmosis/dialysisPhotocatalytic reactionSludge
The invention discloses a photocatalytic oxidation-membrane separation circulating fluid bed reaction device comprising a photocatalytic reactor and a membrane separation circulating reactor, wherein the photocatalytic reactor comprises a photocatalytic reactor shell; the membrane separation circulating reactor comprises a membrane separation circulating reactor shell arranged on the upper part of the side of the photocatalytic reactor shell; the photocatalytic reactor shell is internally provided with an ultraviolet light source; the membrane separation circulating reactor shell is internally provided with an immersed membrane assembly; the immersed membrane assembly is connected with a water outlet; the lower part of the photocatalytic reactor shell is respectively provided with a water inlet and a sludge discharge opening; the upper parts and the bottoms of the photocatalytic reactor shell and the membrane separation circulating reactor shell are respectively communicated through a connecting pipe and a circulating pipe; and the lower part of the photocatalytic reactor shell and the lower part of the immersed membrane assembly inside the membrane separation circulating reactor shell are respectively provided with a first aerating device and a second aerating device. The invention has higher mass transfer efficiency and light energy utilization ratio by adopting the photocatalytic oxidation-membrane separation circulating fluid bed reaction device and greatly enhances the efficiency of photocatalytic oxidation reaction.
Owner:TIANJIN POLYTECHNIC UNIV
Novel three-phase photovoltaic grid-connected inverter system
InactiveCN102832842AGood compatibilityExtended TrackingAc-dc conversionDc-dc conversionThree-phaseGrid connected inverter
The invention discloses a novel three-phase photovoltaic grid-connected inverter system, wherein the system can be combined to grid after outputting the direct current to different photovoltaic arrays to independently boost; the system has good compatibility to the accessed photovoltaic array; the system boosts the corresponding photovoltaic array respectively through the BOOST circuit and tracks and controls the maximum power point of the BOOST circuit through a controller, so that the tracking range of the maximum power point is enlarged, and the direct current side voltage and the inverter conversion efficiency are improved; the system can be combined and connected with different photovoltaic arrays to achieve combination to the grid through single inverter, so the novel three-phase photovoltaic grid-connected inverter system saves cost and improves the voltage of the grid-connected side, and meanwhile, meets different photovoltaic array combination ways and different environmental requirements and improves the light energy utilization rate and the system generating efficiency.
Owner:GUANGDONG MINGYANG LONGYUAN POWER ELECTRONICS
Half-dry solid-state adherent culture device for microalgae industrial production
ActiveCN103289887AReduce water consumptionAchieve ultra-high density cultureSolid phase fermentation bioreactorsSecondary metaboliteLiquid storage tank
The invention belongs to the field of microalgae culture, and in particular relates to a half-dry solid-state adherent culture device for microalgae industrial production. The half-dry solid-state adherent culture device comprises a bracket system, adherent culture units, a supporting shaft transmission system, a speed regulating motor, liquid supplementation pipes, collection grooves and a culture medium liquid storage tank, wherein at least one adherent culture unit is arranged on the bracket system and is connected with the speed regulating motor through the supporting shaft transmission system; the liquid supplementation pipes are respectively arranged above the adherent culture unit and are communicated with the culture medium liquid storage tank through pipelines; the collection grooves are respectively formed below the adherent culture unit and are communicated with the culture medium liquid storage tank through liquid collection pipes; a liquid circulating pump and a carbon supplementation device are arranged in the culture medium liquid storage tank. The half-dry solid-state adherent culture device can be used for producing microalgae biomass and secondary metabolites on a large scale; the yield in unit floor area is effectively improved; the culture period is shortened; the culture water consumption is greatly reduced; the cost of the culture device and the operation cost are reduced; the industrial magnification is facilitated.
Owner:QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
Method of quickly repairing cadmium polluted cultivated land by crop rotation of cadmium super-enriching plant and energy plant
InactiveCN108114977ASolve the problem of repair effectEfficient repairContaminated soil reclamationSoil remediationGrowing season
The invention discloses a method of quickly repairing a cadmium polluted cultivated land by crop rotation of a cadmium super-enriching plant and an energy plant. The method comprises the following step: planting the cadmium super-enriching plant and the energy plant in the cadmium polluted cultivated land in the natural growth periods thereof for conventional cultivation to achieve the purpose ofrepairing the cadmium polluted cultivated land by means of adsorbing and enriching abilities of the cadmium super-enriching plant and the energy plant, wherein the cadmium super-enriching plant is sedum plumbizincicola and the energy plant is sorghum or oilseed rape. The invention provides a planting mode which is not limited by growth seasons. Based on one year as the repair period, the soil repair efficiency of the polluted cultivated land is increased by means of a relatively long growth period in multi-cropping plantation, and the method is short in repair period, high in operability and low in cost, and repairs the land more thoroughly.
Owner:北京复天科技有限公司
Structured light illuminating microscopic imaging system based on integrated photonic chip
The invention discloses a structured light illuminating microscopic imaging system based on an integrated photonic chip. The structured light illuminating microscopic imaging system comprises a light source, the integrated photonic chip, a sample containing table, a microobjective, a filter part, a photoelectric detector, a computer processing system and a control system. The light source is connected with the integrated photonic chip, the integrated photonic chip is arranged below the sample containing table, the microobjective is arranged above the sample containing table, the filter part is arranged above the microobjective, and the photoelectric detector is arranged above the filter part. A sample to be detected is fixed to the sample containing table, and light emitted by the light source irradiates the sample to be detected on the sample containing table after being processed by the integrated photonic chip. The computer processing system is connected with the sample containing table, the photoelectric detector and the control system. The integrated photonic chip is connected with the control system. According to the technical scheme, the system has the advantages of being small in size, compact in structure, high in system stability, high in solar energy utilization rate, high in imaging resolution ratio and the like, and is suitable for the real-time three-dimensional imaging study of living cells.
Owner:INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
Red light semiconductor area array light source device for laser display
InactiveCN103412406ASimple structureImprove reliabilityLaser detailsProjectorsEffect lightLight beam
The invention discloses a red light semiconductor area array light source device for laser display. The red light semiconductor area array light source device for laser display comprises a VCSEL area array and a microlens array, wherein the VCSEL area array at least comprises a plurality of VCSEL units which are used for emitting circular laser beams, and the microlens array is formed by a plurality of microlens and used for performing collimation rounding on the laser beams output by the VCSEL area array and outputting the laser beams. The light source device can reduce optical elements in a projection display optical path, shorten the length of a lighting optical path, and improve the optical energy utilization rate. In addition, the VCSEL area array can reduce interference between VCSEL lasers and weaken laser speckles, and therefore projection display quality is improved. According to the red light semiconductor area array light source device, the area array light source packaging technology and VCSEL are adopted, a two-dimensional array is easy to integrate, and the defect that power transmitted by a single tube is poor can be overcome. The VCSEL is available in wafer test, reduces cost greatly and is easy in modularization and packaging.
Owner:INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
Infrared spectrum monitoring system based on MEMS optical grating optical modulator linear array
InactiveCN101504364AWide spectral detection rangeLow costSpectrum investigationColor/spectral properties measurementsOptical pathOptical modulator
The invention discloses an infrared spectrum monitoring system based on an MEMS grating light modulator linear array, which comprises a light source, a dispersion element, a grating light modulator linear array, a probe and the like. The light emitted by the light source is incident onto a grating through a collimation system; the light with different wavelengths has different diffraction angles; diffraction light with various wavelengths passes through an imaging system and then is incident onto the programmable grating light modulator linear array; the grating light modulator linear array is operated by applying the voltage to ensure that the grating light modulator linear array has a function of controlling the diffraction states of the light with different wavelengths; and the single point probe arranged on the test surface can orderly acquire the intensity of the light with various wavelengths or the synthetic light intensity of the light with several wavelengths, thereby the infrared spectrum monitoring on detected substances is realized. The system adopts a novel light path system, does not use an expensive infrared detection array, only needs the single point infrared probe, and has the advantages of low cost, small volume, quick response speed, high precision, low power consumption, portable use and the like.
Owner:CHONGQING UNIV
Photovoltaic component solder strip retro reflective film
InactiveCN106449842AIncrease the areaIncrease output powerPhotovoltaic energy generationSemiconductor devicesLight energyOptoelectronics
The invention provides a photovoltaic component solder strip retro reflective film, including a base material, a back glue layer, a micro prism layer, a retro reflective layer, the back glue layer is provided on the lower surface of the base material, the micro prism layer is a multi micro prism array, and is provided on the upper surface of the base material, the retro reflective layer covers the surface of the micro prism layer, the ridge line direction of the micro prism and the length direction of the base material form a 15 DEG- 65 DEG angle setting. Compared to prior art, the ridge line direction of the micro prism and the length direction of the base material form an angle setting, which can augment the area of the reflecting surface, also enables the reflected light to recycle a larger surface of the cell slice, increases the utilization rate of light source, and increases the output power of the photovoltaic component.
Owner:SUZHOU GOLDEN STAR ELECTRONICS TECH CO LTD
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com