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Novel apparatus used for film engraving and dotting of thin-film solar cell
InactiveCN101431126AReach deflectionImprove consistencyFinal product manufactureLaser beam welding apparatusEngravingHigh volume manufacturing
The invention relates to a new device used for scribing and pointing of a thin film solar cell. The device comprises a laser, a support pedestal, an automatic focusing control subsystem, an automatic photographing positioning subsystem, an optical platform, an industrial control computer, a power supply and a dynamic galvanometric scanning subsystem. The device is characterized in that a feeding mechanism is arranged on the optical platform, wherein, the support pedestal, the automatic focusing control subsystem and the automatic photographing positioning subsystem are arranged on one side surface of the optical platform. An X-Y-axis galvanometric scanning unit, a Z-axis front focusing unit and the laser are arranged in a beam of the support pedestal. The industrial control computer is respectively connected with the laser, the X-Y-axis galvanometric scanning unit, the Z-axis front focusing unit and the power supply by cables. The invention has the advantages of simple structure, standard process, low production cost, easy mass production, wide scanning range, small focusing spot, good consistency, automatic and accurate positioning, high working efficiency, and the like, thereby being capable of being widely applied in scribing, pointing and other production fields of amorphous silicon solar cells.
Owner:WUHAN LINGYUN PHOTOELECTRONICS SYST
Hyperspectral imaging based non-destructive quantitative testing device for mixture powder and method
InactiveCN107064096AGuaranteed miniaturizationAchieve modularityFluorescence/phosphorescenceFluorescencePhysics
The invention discloses a hyperspectral imaging based non-destructive quantitative testing device for mixture powder and a method. The hyperspectral imaging based non-destructive quantitative testing device comprises an excitation module, a scanning module, a signal acquisition module and a control drive module. Sample stability and system miniaturization during scanning detection are guaranteed by combining a two-dimensional galvanometer and a field sweeping lens, and the whole device is modular and high in integration level and resolution; incident light rays in different positions focus to the same plane during scanning, and high-resolution sharp images are acquired; the device has high degree of freedom, near-infrared and infrared hyperspectral imaging or fluorescence and Raman hyperspectral imaging can be realized by simply replacing a light source and switching between a dichroscope and a half-transparent and half-reflecting mirror; the testing method is particularly applicable to stable, non-destructive and accurate testing of a mixture powder sample.
Owner:CHANGSHU ZJU INST FOR OPTO ELECTRONICS TECH COMMLIZATION IOTEC
Composite microbial agent for treating domestic garbage and method for treating domestic garbage by using composite microbial agent
InactiveCN106978370AIncrease functional diversityImprove applicabilityFungiBacteriaPseudomonas putidaMicrobial agent
The invention relates to a composite microbial agent for treating domestic garbage and a method for treating the domestic garbage by using the composite microbial agent. The composite microbial agent for treating the domestic garbage is prepared from the following components: brevendimonas diminuta, pseudomonas stutzeri, pseudomonas maltophilia, pseudomonas fluorescens, pseudomonas putida, candida utilis, candida lipolytica, schizosaccharomyces pombe, schizosaccharomyces octosporus, bacillus megatherium, bacillus subtilis, bacillus cereus, alcaligenes faecalis, clostridium beijerinckii, achromobacter denitrificans, nocardia coralline, and the like, wherein the parts by weight of the brevendimonas diminuta are 1-5, the parts by weight of the pseudomonas stutzeri are 1-5, the parts by weight of the pseudomonas maltophilia are 1-5, the parts by weight of the pseudomonas fluorescens are 1-5, the parts by weight of the pseudomonas putida are 1-5, the parts by weight of the candida utilis are 1-5, and the parts by weight of the candida lipolytica are 1-5.
Owner:哈尔滨明慧生物技术开发有限公司
Video call method and device, wearable equipment and storage medium
InactiveCN108737766AEnsure personal safetyGuaranteed focusTwo-way working systemsMindfulnessUsability
The invention discloses a video call method applied to wearable equipment. The video call method comprises the following steps: when the wearable equipment receives a video call request of a mobile terminal, acquiring current environment information of the wearable equipment; judging whether the wearable equipment is in a preset scene or not according to the current environment information; and ifthe wearable equipment is in the preset scene, rejecting the video call request. According to the video call method disclosed by the invention, when the video call request of the mobile terminal is received, the current environment information of the wearable equipment is acquired; meanwhile, when the wearable equipment is in the preset scene not suitable for answering a video call according to the current environment information, the video call request is rejected, so as to avoid such a situation that a user answers the video call in a dangerous scene or a learning scene and to guarantee thesafety of the user, guarantee the learning mindfulness and effectiveness of the user and enhance the user experience; and the video call method is relatively high in usability and practicability. Theinvention further provides a video call device, the wearable equipment and a storage medium.
Owner:GUANGDONG XIAOTIANCAI TECH CO LTD
Multi-purpose micro voice coil motor
The invention discloses a multi-purpose micro voice coil motor which comprises a magnetic yoke body, a first spacer, an upper spring piece, a coil, a coil holder, a permanent magnet, a second spacer, a lower spring piece and a base, wherein the magnetic yoke body and the base are arranged in a mutually matched way, so as to form a sealed space which is used for containing the first spacer, the upper spring piece, the coil, the coil holder, the permanent magnet, the second spacer and the lower spring piece, and the magnetic yoke body is integrally formed by using metal materials. The whole product is covered by the magnetic yoke body made of the metal materials, and the base and the magnetic yoke body are mutually matched to seal the motor product in the magnetic yoke body, so that the strength of the motor is increased; another shell is not additionally adopted to cover the motor, so that the inner space of the motor is enlarged, and the sizes of the permanent magnet and the coil are increased, thereby increasing the driving force of the motor and improving the performance of the motor; and the magnetic yoke body plays multiple roles in the motor, so that the quantity of parts of the motor is further reduced, and the manufacturing process and the assembly difficulty are reduced.
Owner:辽宁中蓝光电科技有限公司
Method for manufacturing phase zone plate
InactiveCN102207569AHigh diffraction efficiencySimple preparation processDiffraction gratingsMountingsManufacturing technologyEtching
The invention discloses a method for manufacturing a phase zone plate, which comprises the following steps of: manufacturing a substrate; performing spin coating of a photoresist on the substrate, and photo-etching, exposing and developing the photoresist to form a photoresist pattern of a zone plate; depositing a silicon nitride layer on the substrate on which the photoresist pattern of the zone plate is formed; and removing the photoresist and etching the substrate to form the phase zone plate. Compared with the conventional zone plate manufacturing technology, the method for manufacturing the phase zone plate is simple in manufacturing technology, low in cost and can improve the diffraction efficiency of the zone plate.
Owner:INST OF MICROELECTRONICS CHINESE ACAD OF SCI
Digital-micro-mirror-device-based fast precise optical focusing enhancement method and system
ActiveCN107219617AOvercoming the problem of slow speed during phase correctionHigh speedMicroscopesMicro imagingDigital micro mirror device
The invention discloses a digital-micro-mirror-device-based fast precise optical focusing enhancement method and system. Region division is carried out on a digital micro mirror device and the digital micro mirror device is divided into two parts evenly; divided areas in the second part are kept to be unchanged and intensity modulation is carried out simultaneously on light beams at all divided areas in the first part at different frequencies, fluorescent light with changed intensities is excited after light beam focusing, and the excited fluorescent light is received and recorded by a photomultiplier; after Fourier transform on a fluorescent light signal, compensation phases corresponding to all divided areas are obtained; the divided areas in the first part are kept to be unchanged d intensity modulation is carried out simultaneously on light beams at all divided areas in the second part to obtain another halves of compensation phases; the divided areas with the phase values smaller than pai are kept and the divided areas with the phase values larger than pai are removed to obtain screened divided areas; and after the digital micro mirror device loads the screened divided areas, the light beams are focused in a sample to form a light spot with the higher central light intensity. On the basis of the optical diffraction principle, the beam focusing speed is increased and the light beam focusing capability is enhanced. A feasible focused light spot generation method can be provided for the non-fiber interpolation type optogenetics and the deep penetration microimaging.
Owner:ZHEJIANG UNIV
Light path light split unit and coaxial wire feed cladding head thereof
PendingCN111069770AEven energy distributionAvoid efficiencyMountingsCondensersLight beamLight reflection
The invention discloses a light path light split unit and a coaxial wire feed cladding head thereof. The light path light split unit comprises a plurality of adjustable reflecting mirrors and at leastone-stage light split reflecting motor, the adjustable reflecting mirrors are distributed all around the light split reflecting motors, the light split reflecting motors can divide incident light beams into a plurality of light split light beams perpendicular to the incident light beams, and each light split light beam focuses on a point through the adjustable reflecting mirrors; and the coaxialwire feed cladding head comprises a cladding head mirror cavity provided with the light path light split unit and a wire feed pipe, the wire feed pipe and collimated laser beams are coaxially arranged, the wire feed extends out of the cladding head mirror cavity, a wire sequentially passes through the wire feed pipe and a wire feed nozzle, and the adjustable reflecting mirrors can adjust the lightsplit light beams to focus on the wire. According to the light path light split unit and the coaxial wire feed cladding head thereof, light split light paths are formed through the light split unit,so that the adjustable reflecting mirrors adjust angles of the light split light beams and the wire, wire molten drops are located right above a base material molten pool in the process of coaxial wire feed, and meanwhile, it is ensured that energy of the light split light beams focusing on the top end of the wire is equally distributed.
Owner:HUAZHONG UNIV OF SCI & TECH
Wafer surface morphology detection method
ActiveCN102455600AGuaranteed focusGuaranteed accuracyPhotomechanical exposure apparatusMicrolithography exposure apparatusPhysics
The invention provides a wafer surface morphology detection method. The method comprises the following steps: 1, selecting a wafer of a plurality of dies with same whole relative surface morphologies; 2, selecting a first die, aligning the central position of a detection point array at the central position of the first die, and determining the first relative surface morphology of the first die by detecting the first absolute surface morphology of the first die; 3, selecting a second die, deviating the central position of the detection point array from the central position of the second die, and determining the second relative surface morphology of the second die by detecting the second absolute surface morphology of the second die; 4, determining the whole relative surface morphologies of the two dies by merging the first relative surface morphology and the second relative surface morphology; and 5, detecting partial absolute surface morphologies of other dies on the wafer, and obtaining the whole absolute surface morphologies of all the dies through the partial absolute surface morphologies and the whole relative surface morphologies. According to the invention, a "blind spot" problem generated by spaces between each two light spots can be avoided.
Owner:SEMICON MFG INT (SHANGHAI) CORP +1
SAR imaging scene division method based on region-of-interest detection
ActiveCN113064167AGuaranteed focusFast operationComplex mathematical operationsRadio wave reradiation/reflectionSynthetic aperture radarImaging quality
The invention belongs to the technical field of radar imaging, and relates to an SAR imaging scene division method based on region-of-interest detection. According to the method, through analyzing the phase error obtained after the echo data of a synthetic aperture radar is preprocessed, and further optimizing a sub-scene division method based on an existing phase gradient sub-scene division method, a region of interest can be well focused, the edge defocusing can be inhibited, and the imaging quality can be improved. In addition, the method does not involve complex calculation operation, and the implementation mode of the method is relatively simple.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Camera calibration method and camera calibration device
The invention relates to the technical field of image photographing equipment, and discloses a camera calibration method and a camera calibration device. The calibration method comprises the steps of determining whether an image plane is overlapped with a plane in which a photosensitive unit exists; if not, adjusting the position of a lens module through a moving mechanism until the image plane is overlapped with the plane in which the photosensitive unit exists; on the condition that the image plane is overlapped with the plane in which the photosensitive unit exists, calculating a tangential value of an included angle beta between an object plane and the image plane; and on the condition that an object distance changes, calibrating the position of the lens module according to the tangential value. An embodiment of the invention further discloses a camera calibration device. Compared with prior art, the camera calibration method and the camera calibration device are advantageous in that the position of the lens module can be adjusted through a moving mechanism so that the image plane is overlapped with the plane in which the photosensitive unit exists; and furthermore the tangential value of the included angle between the object plane and the image plane is calculated; and on the condition that the object distance is changed, the position of the lens module can be calibrated according to the tangential value.
Owner:上海乐愚智能科技有限公司
System and method for detecting vacuum degree of vacuum device based on laser-induced breakdown spectroscopy
ActiveCN106290264AReal-time online measurementAvoid damageVacuum gauge using radiometer actionAnalysis by material excitationSpectrographLaser-induced breakdown spectroscopy
The invention discloses a system and method for detecting the vacuum degree of a vacuum device based on a laser-induced breakdown spectroscopy. According to the method disclosed by the invention, a target material in a vacuum chamber is ablated through utilizing laser focusing so as to generate plasmas; a plasma spectrum is measured through focusing of an optical camera lens, light splitting of a spectrograph, and imaging of an image intensifier. The plasma spectrums under different air pressure environments are measured for a plurality of times and a relation between the plasma spectrum and air pressure is analyzed and found. By utilizing the relation, the air pressure of the vacuum chamber can be obtained through measuring the plasma spectrum.
Owner:XI AN JIAOTONG UNIV
Imaging lens
The invention relates to an imaging lens which comprises a first lens group (G1) with positive focal power, a diaphragm, a second lens group (G2) with positive focal power and a third lens group (G3)with positive focal power or negative focal power which are sequentially arranged from an object side to an image side, and the third lens group (G3) is a fixed group. The first lens group (G1) and the second lens group (G2) form a focusing group capable of moving along an optical axis. The imaging lens is arranged according to the limitations, and can realize the characteristics of large aperture, high resolution, low distortion, uniform image quality, large depth of field, good color rendition degree and high contrast ratio.
Owner:舜宇光学(中山)有限公司
Training system capable of improving vision definition and acuity
InactiveCN106726389ATraining acuityRapid identificationData processing applicationsEye exercisersComputer scienceVisual perception
The invention provides a training system capable of improving vision definition and acuity. The system comprises a fine eyesight training system, a stereoscopic vision training system, a quantitative hyperopia training system and a child amblyopia training system. The stereoscopic vision training system is stereoscopic game training software with keeping of constant-speed movement of an airplane as the characteristic, flying stone is avoided through continuous interference of the head-on flying stone, it is guaranteed that the airplane moves forwards to attract the focus of children, and stimulus is reinforced to promote generation of the stereoscopic sense. Fine eyesight training is based on color impact and dynamic switching, the characteristics of animals, letters and fruits are combined, different training games are formed, the child is taught through training, the training initiative of the children is efficiently mobilized, and the object viewing acuity and definition of the children are improved. According to quantitative hyperopia training, sighting mark sizes in a visual chart are used for copying a batch of number, animal and fruit mixed sighting marks, by means of a manual or automatic mode, different pictures are shown randomly to be distinguished by the children, and the confidence for the children to distinguish objects can be enhanced psychologically.
Owner:上海思明堂生物科技股份有限公司
Heat absorber of linear Fresnel heat-collecting system
ActiveCN105758014AAvoid entanglementSimple structureSolar heating energySolar heat devicesEngineeringSpring steel
The invention discloses a heat absorber of a linear Fresnel heat-collecting system.The heat absorber comprises a heat-collecting tube, secondary reflectors and stand columns supporting a heat absorber body, the heat-collecting tube is fixed to lower cross beams connected with the stand columns through supporting rods, and a spring steel piece is arranged between each supporting rod and the corresponding lower cross beam; the secondary reflectors are connected with multiple vertical plates respectively, and the vertical plates are connected with upper cross beams fixed to the stand columns or connected with a frame fixed among the stand columns.According to the heat absorber, the secondary reflectors and the heat-collecting tube are relatively independent in structure, and the heat absorber is simple in structure and convenient to mount and maintain; the supporting mode of the heat-collecting tube is simple and reliable, and it can be effectively guaranteed that the heat-collecting tube is not damaged due to the fact that the heat-collecting tube is heated and expanded; the secondary reflectors and the heat-collecting tube are all mounted on the stand columns, the stand columns are taken as the reference, accuracy of relative positions can be effectively guaranteed, and it is guaranteed that the secondary reflectors focus radiation to the heat-collecting tube.
Owner:HUANENG CLEAN ENERGY RES INST
Optical information recorder/reproducer, optical information recording/reproducing method and control circuit
InactiveCN101501767AGuaranteed focusRecord information storageOptical beam guiding meansInformation layerOptoelectronics
The invention provides an optical information recorder / reproducer, an optical information recording / reproducing method and a control circuit. A distance control circuit (23) keeps the constant distance between a condensing member (11) and the surface of an optical disc (1) using return light from a region where proximity field light is generated. Under that state, a focus control circuit (27) focus-controls the focus position of the proximity field light to sustain it at the position of an information layer using reflection light from the information layer. Consequently, information can be recorded and reproduced stably with the proximity field light without causing erroneous erasure or destruction of information recorded on the recording layer (2) even if locally varying irregularities occur on the surface of the optical disc (1) or uneven thickness exists in the protective layer (3).
Owner:PANASONIC CORP
Camera module and electronic equipment
ActiveCN113114894AExtended light pathReduce distanceTelevision system detailsColor television detailsOptical pathPrism
The invention discloses a camera module and electronic equipment, the camera module comprises a lens assembly, a second prism, a first prism and a photosensitive chip; the second prism and the first prism are both located between the lens assembly and the photosensitive chip, and the second prism and the first prism are oppositely arranged; wherein light passes through the lens assembly, is reflected for at least one time between the first prism and the second prism, and then enters the photosensitive chip. Therefore, the light is reflected at least once between the first prism and the second prism, so that the light path of the light is prolonged, the distance between the lens assembly and the photosensitive chip is reduced on the basis of ensuring the focusing performance of the camera module, and the volume of the whole camera module is further reduced.
Owner:VIVO MOBILE COMM CO LTD
Novel apparatus used for film engraving and dotting of thin-film solar cell
InactiveCN101431126BAdjustable scanning rangeImprove consistencyFinal product manufactureLaser beam welding apparatusEngravingHigh volume manufacturing
Owner:WUHAN LINGYUN PHOTOELECTRONICS SYST
Projector assembling method, projector assembling equipment and readable storage medium
The invention discloses a projector assembling method, a projector assembling device and a readable storage medium. The projector comprises a projection light machine and a lens; the lens is arranged on one side of a light-emitting surface of the projection light machine, and the projection light machine projects a picture through the lens. The assembling method comprises the following steps: acquiring a projection picture of a projection light machine through the lens; determining an angular point position of the projection picture; according to the angular point position and a preset corresponding relation, adjusting the assembly position between the lens and the projection light machine, wherein the preset corresponding relation is generated by combining the angular point position and a preset standard position. The technical scheme of the invention can effectively ensure that the light projected by the projection ray machine is focused on the surface of a screen after passing through the lens under the condition that the surface of the lens and the light-emitting surface of the projection ray machine are inclined.
Owner:GOERTEK OPTICAL TECH CO LTD
Lens driving motor, camera and mobile terminal
The invention provides a lens driving motor, a camera and a mobile terminal. The lens driving motor comprises a shell, a driving magnet, a driving coil, a lens cone, a lens support body and a lower cover assembly, the shell is arranged on the lower cover assembly to form an accommodating space between the shell and the lower cover assembly; the driving magnet, the driving coil, the lens barrel andthe lens supporting body are all located in the containing space, the driving coil is arranged on the lens supporting body, the driving magnet is arranged corresponding to the driving coil, at leastone part of the lens barrel is arranged in the lens supporting body, and the lens barrel and the lens supporting body are of an integrally-formed structure. The problem that in the prior art, the assembling procedure of a lens driving motor is complex is solved.
Owner:SHANGHAI BILLU ELECTRONICS CO LTD
Laser-arc hybrid welding device and pipeline welding device with same
The invention provides a laser-arc hybrid welding device and a pipeline welding device with the same. The laser-arc hybrid welding device comprises a fixed connecting part (10), a laser welding part, an arc welding part and a stopping part (40), wherein the laser welding part is mounted on the fixed connecting part (10), and used for generating laser beams (21); the arc welding part is mounted on the fixed connecting part (10), and arranged at one side of the laser welding part; the stopping part (40) is used for preventing welding slag generated by the arc welding part from splashing, mounted on the fixed connecting part (10), and arranged between the laser welding part and the arc welding part; and avoiding holes (41) used for avoiding the laser beams (21) are formed in the stopping part (40). According to the laser-arc hybrid welding device and the pipeline welding device, the problem that different degrees of damage on a focusing lens of the splashing of welding slag in the prior art can be solved effectively.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1
Liquid crystal lens zoom processing method and system
ActiveCN113514974AReduce Voltage Design DataImprove data reading efficiencyStatic indicating devicesNon-linear opticsOptical pathClose range
The invention discloses a liquid crystal lens zoom processing method and system. The method comprises the steps: obtaining the maximum optical path difference and the minimum optical path difference of a liquid crystal lens, and calculating the optical path difference variation which is the difference value between the maximum optical path difference and the minimum optical path difference; dividing the optical path difference variation into N equal parts according to preset focal length adjustment precision, obtaining N + 1 optical path differences by taking the optical path difference variation / N as a step length, and obtaining a focal length corresponding to each optical path difference; and according to the optical path difference distribution curve corresponding to the focal length, simulating each group of driving voltage corresponding to each focal length so as to establish a focal length-voltage lookup table. The preset focal length and the driving voltage established by the method have high focal length adjustment precision when the target object is observed in a close range, the focal length adjustment precision is reduced along with increasing of the distance between the target object and the human eyes, and the method is more in line with general human eye visual features.
Owner:NANCHANG VIRTUAL REALITY RES INST CO LTD
Segmented focusing ultrasonic phased array ring array design method
ActiveCN111948628AFar outer ring widthQuality assuranceMaterial analysis using sonic/ultrasonic/infrasonic wavesWave based measurement systemsEngineeringArray element
The invention relates to the technical field of ring arrays, in particular to a segmented focusing ultrasonic phased array ring array design method, which comprises a ring array probe, an electronic phased array can be focused in a larger focusing range through the phased array probe, a focal length range is divided into a plurality of focal length segments, and when the phased array probe is focused in a closer focal length segment, a plurality of array element rings on the inner layer are used for focusing, the focusing quality is guaranteed through the design of focusing coefficients, whenfocusing is conducted in a far focal length section, array elements on the outer layer of each section are added step by step for common focusing, the long-distance focusing performance is guaranteed,the area of the array elements is increased section by section through a sectional focusing method, and the focusing efficiency is improved. The outer ring width of the large-aperture probe with thelarge focal length is large, the manufacturing process difficulty is reduced, and the consistency of the focusing capacity at different far and near focal lengths is guaranteed through the design of the focusing coefficient k.
Owner:WUHAN ZHONGKE INNOVATION TECH
Traveling wave deflector preposition short magnetic focusing femtosecond stripe image converter tube
InactiveCN103035462AImprove time resolutionImprove spatial resolutionElectrode and associated part arrangementsImage-conversion/image-amplification tubesElectronic transmissionTemporal resolution
The invention relates to a traveling wave deflector preposition short magnetic focusing femtosecond stripe image converter tube which comprises a tube shell, a cathode disc, a photocathode, an anode, a traveling wave deflector, a short magnetic focusing lens and a fluorescent screen, wherein the cathode disc, the photocathode, the anode, the traveling wave deflector, the short magnetic focusing lens and the fluorescent screen are sequentially arranged in the tube shell along the electronic transmission direction. The photocathode is arranged on the cathode disc. The traveling wave deflector comprises a pair of S-shaped belts which are vertically and mutually arranged parallel to each other. The short magnetic focusing lens comprises a magnetic pole shoe, a galvanical solenoid and a magnetic pole shoe slit, wherein the galvanical solenoid is wrapped inside the magnetic pole shoe and the magnetic pole shoe slit is close to the inlet portion of the short magnetic focusing lens. The traveling wave deflector preposition short magnetic focusing femtosecond stripe image converter tube has the advantages of being conducive to improving temporal resolution, spatial resolution and dynamic range of the image converter tube, and capable of simultaneously reducing difficulty of magnetic lens design, shortening the axial length of the system under the premise of keeping focusing effect and providing possibility for miniaturization of the stripe image converter tube.
Owner:XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
A system and method for detecting the vacuum degree of a vacuum device based on laser-induced spectral breakdown technology
ActiveCN106290264BReal-time online measurementGuaranteed focusVacuum gauge using radiometer actionAnalysis by material excitationSpectrographLaser-induced breakdown spectroscopy
The invention discloses a system and method for detecting the vacuum degree of a vacuum device based on a laser-induced breakdown spectroscopy. According to the method disclosed by the invention, a target material in a vacuum chamber is ablated through utilizing laser focusing so as to generate plasmas; a plasma spectrum is measured through focusing of an optical camera lens, light splitting of a spectrograph, and imaging of an image intensifier. The plasma spectrums under different air pressure environments are measured for a plurality of times and a relation between the plasma spectrum and air pressure is analyzed and found. By utilizing the relation, the air pressure of the vacuum chamber can be obtained through measuring the plasma spectrum.
Owner:XI AN JIAOTONG UNIV
Camera calibration method and calibration device
Owner:上海乐愚智能科技有限公司
Bicycle vehicular advertisement system based on rotating display of LED (light-emitting diode) pixel bars
PendingCN109448604ADisplay stableGuaranteed focusStatic indicating devicesMobile visual advertisingDisplay deviceLight-emitting diode
Owner:王玮
Pixel unit array, sensor chip and electronic device
PendingCN112103303AFocusGuaranteed focusSolid-state devicesRadiation controlled devicesPhysicsEngineering
The embodiment of the invention provides a pixel unit array and electronic equipment. In the pixel unit array, first pixel units and second pixel units are arranged on a substrate layer, the substratelayer comprises a plurality of pixel areas arranged in an array, each first pixel unit occupies one pixel area, and each second pixel unit occupies M rows and N columns of pixel areas in the array formed by the plurality of pixel areas; wherein M and N are both positive integers, M + N is greater than or equal to 4, and the volume of the sub-pixel is greater than that of the first pixel unit; theshading layers are used for shading incident light, each shading layer comprises two sub shading layers with the same shape, and the sub shading layers are in one-to-one correspondence with the sub pixels; each sub-shading layer is arranged on the corresponding sub-pixel and covers part of the photosensitive area of the corresponding sub-pixel; the two sub-shading layers are symmetrical about thereference plane mirror image, and the reference plane is the plane where the contact surface of the two sub-pixels is located. According to the invention, the focusing performance of the pixel unit array under strong light is improved.
Owner:SHENZHEN GOODIX TECH CO LTD
A multi-purpose miniature voice coil motor
Owner:辽宁中蓝光电科技有限公司
Heat absorber of a linear Fresnel heat collection system
ActiveCN105758014BAvoid entanglementSimple structureSolar heating energySolar heat collectors with working fluidsCollection systemEngineering
The invention discloses a heat absorber of a linear Fresnel heat collecting system, which comprises a heat collecting tube, a secondary reflection mirror and a column supporting the heat absorber, and the heat collecting tube is fixed on the lower part connected with the column through a support rod. On the crossbeam, there is also a spring steel sheet between the support rod and the lower crossbeam; the secondary reflectors are respectively connected with a plurality of vertical plates, and the vertical plates are connected with the upper crossbeam fixed on the column, or with the The frame between the columns is connected; the secondary reflector of the present invention is relatively independent in structure from the heat collecting tube, the structure is simple, and the installation and maintenance are relatively convenient; the support method of the heat collecting tube is simple and reliable, which can effectively ensure that the heat collecting tube will not be affected damage; the secondary reflector and the heat collecting tube are installed on the column, and the column is used as the reference, which can effectively ensure the accuracy of the relative position and ensure that the secondary reflector focuses the radiation on the heat collecting tube.
Owner:HUANENG CLEAN ENERGY RES INST
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