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38results about How to "Guaranteed scan quality" patented technology
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Three-dimensional 3D scanner
InactiveCN105444720AExtend the scan rangeComprehensive scan dataMeasurement devices3d scanningComputer science
The invention discloses a three-dimensional 3D scanner. The scanner comprises an objective table used for placing an object, a motor and a first scanning unit. The scanner of the invention can scan materials with different heights and different widths. Three-dimensional scanning can be performed on the object on the objective table. A scanning scope is large, scanning data is comprehensive and a scanning effect is good. Unnecessary scanning operation is reduced, resources are saved and the efficiency is increased. Scanning can be performed from an upper portion and a lower portion of the object, and scanning quality is effectively guaranteed.
Owner:合肥愿与网络技术有限公司
Flattening method of deformed page
The invention discloses a flattening method of a deformed page. The flattening method comprises the following steps of: acquiring a matching point set from a left image or a right image; acquiring a corresponding point set from a right view or a left view through the matching point set and a digital image related method; concentrating a corresponding point of any one point A in the matching point set into an A'; acquiring a three-dimensional coordinate of the A through a binocular vision principle by utilizing two-dimensional coordinates of the A and the A' in the left image and the right image; determining an undetermined parameter in a page curve surface parameter equation through the three-dimensional coordinate of a matching point concentrated point and a fitting method; acquiring a flattened plane coordinate of any point of a page curve surface through the flattening method; acquiring a corresponding relation between gray level distribution on a space curve surface and gray level distribution of a flattened plane according to a corresponding relation between the space curve surface and a point on the flattened plane; and calculating a flattened image point by point. The method disclosed by the invention corrects character torsion and the corrected character is the same as a shot character when the page is flatly placed; and the scanning speed of a book is improved.
Owner:TIANJIN UNIV
Linear light source, light guiding body and optical scanning module
InactiveCN102681080ADoes not affect the irradiation effectGuaranteed scan qualityPoint-like light sourceFibre light guidesLight guideReflective layer
The invention relates to a linear light source. Emitted light shines on an object. The linear light source comprises a light guiding body, a light-emitting diode (LED) unit and a reflecting layer. The emitted light is transmitted in the light guiding body. The light guiding body is provided with a bottom face, two reflecting faces extending from two sides of the bottom face respectively and a spotlight cambered surface connected with the two reflecting faces, wherein an opening of the spotlight cambered surface faces the bottom face. The two reflecting faces are arranged on two symmetrical sides of a hypothetical paraboloid, and an opening of the paraboloid faces the spotlight cambered surface. The reflecting layer is arranged on a reflecting face of the light guiding body. By means of the characteristics that light emitted from a focus of the paraboloid face becomes parallel light through reflection, the cambered surface is adopted for focusing the light, and the light is effectively converged on the object.
Owner:LITE ON OPTO TECH (CHANGZHOU) CO LTD +2
Automatic dust-removing filmscanner
InactiveUS20100157259A1Solve the real problemGuaranteed scan qualityPicture changing apparatusPhotographic printingImage captureImaging data
An automatic dust-removing filmscanner comprises a scanner body, a film holder and a dust-removing element. The scanner body has a film-scanning platform and an image-capture module thereinside and has a slot on the surface thereof. The dust-removing element is installed in the film holder. When the film holder is inserted into the slot to locate the film over the film-scanning platform and enable the image-capture module to retrieve the image data recorded on the films, the dust-removing elements on the film holder simultaneously cleans the film-scanning platform. Therefore, the automatic dust-removing filmscanner not only retrieves image data but also automatically cleans the film-scanning platform at the same time without dismantling the scanner body to maintain the scanning quality.
Owner:PACIFIC IMAGE ELECTRONICS
Crack detection device for columnar parts
ActiveCN110307967AGuaranteed scan qualityReduce manual workMachine part testingConveyor partsEngineering
The invention discloses a crack detection device for columnar parts. The crack detection device comprises two stand columns; a cross beam is fixedly connected to the upper ends of the two stand columns, two through holes are formed in the cross beam, a detection cavity is formed between the cross beam and the stand columns, the front end and the rear end of the detection cavity communicate with the outside, a lifting block is arranged in the detection cavity in a sliding mode, and an automatic fastening device is arranged on the lower end surface of the cross beam and the upper end face of thelifting block. Due to the fact that a lifting type automatic clamping device is adopted, the parts can be directly and completely scanned after being fixed, meanwhile, a self-rotation lifting type scanning structure is adopted to carry out system scanning on a to-be-detected part, so that the scanning quality and the scanning speed are guaranteed, the initial position is automatically returned after scanning is completed, the actions of the device are all automatically carried out, so that the manual operation is reduced, and the working efficiency is improved.
Owner:无锡锡西模锻有限公司
Human body 3D scanning rotation speed self-adaptive control system and control method thereof
InactiveCN105186948AGuaranteed scan qualitySmooth rotationField or armature current controlMotor driveControl power
The invention discloses a human body 3D scanning rotation speed self-adaptive control system and a control method thereof. The human body 3D scanning rotation speed self-adaptive control system comprises an MCU chip, a turntable motor driving module, a Hall speed measuring sensor, a power supply module and a turntable motor, wherein the MCU chip is connected with the turntable motor driving module; the Hall speed measuring sensor and the turntable motor are each connected with the turntable motor driving module; and the Hall speed measuring sensor is connected with the MCU chip to form a closed-loop control system. The control method comprises the steps that: the MCU chip presets a turntable rotation speed preset value; the MCU chip sends a command to the turntable motor driving module; the turntable motor rotates at a constant speed of the preset value; a human body stands on a rotating turntable; the Hall speed measuring sensor senses variation of rotation speed of the turntable; the MCU chip calculates a deviation value according to a feedback signal to form a turntable motor power changing amount; and the turntable motor driving module controls power of the turntable motor. The human body 3D scanning rotation speed self-adaptive control system and the control method thereof shorten the corresponding time between the rotation speed change value to the preset value, and avoid the turntable from affecting scanning quality due to rotation speed variation.
Owner:摩多数据(深圳)有限公司
Method and device for scanning article to be scanned, storage medium and electronic device
ActiveCN113953273AImprove scan qualityFix low scan quality issuesCleaning processes and apparatusOptical elementsOpticsLight beam
The embodiment of the invention provides a method and a device for scanning an article to be scanned, a storage medium and an electronic device. The method comprises the steps of obtaining a target material of the article to be scanned, wherein the target material is used for indicating components of the article to be scanned; generating a target light beam matched with the target material; and scanning the article to be scanned by using the target light beam to obtain a scanned article with the scanning quality higher than the target scanning quality. According to the method and the device for scanning the article to be scanned, the storage medium and the electronic device, the problem that the scanning quality of the article to be scanned is low in the prior art is solved, and the effect of improving the scanning quality of the article to be scanned is achieved.
Owner:WUHAN RAYCUS FIBER LASER TECHNOLOGY CO LTD
Scanning auxiliary tool automatically adaptive to book archive
ActiveCN106027846AImprove fitStrong securityBook markersPictoral communicationEngineeringPerpendicular direction
The invention discloses a scanning auxiliary tool automatically adaptive to a book archive. The scanning auxiliary tool comprises a V-shaped frame component and a book supporting plate component, wherein the book supporting plate component is arranged below the V-shaped frame component; the book supporting plate component can be moved on a horizontal direction; the V-shaped frame component can be moved along a perpendicular direction of the movement direction of the book supporting plate component; the V-shaped frame component can be inserted into the book supporting plate component in a perpendicular movement process; and the V-shaped frame component and the book supporting plate component are close and are parallel. The tool is simple in structure; by designing the reasonable structure, no matter how thick the book archive is or how high a binding line is, a scanner can carry out automatic scanning clearly and completely on the premise of not damaging a to-be-scanned material; the scanning quality is guaranteed, and the safety of a book is ensured.
Owner:山东奥达复合材料有限公司
Laser scanning galvanometer performance detection method
PendingCN112432766AImprove stabilityGuaranteed uniformityTesting optical propertiesGalvanometerLaser scanning
The invention discloses a laser scanning galvanometer performance detection method, and the method comprises the specific steps: enabling a system to be powered on, forming a linear light source, enabling the linear light source to irradiate a galvanometer, and enabling the linear light source to irradiate a photosensitive surface of a detector after reflection and focusing through a focusing lens; defining a working zero point; determining a scanning frequency, an average frequency and a scanning period according to the time elapsed by three adjacent working zero crossing points; determininga linear segment time utilization rate according to the percentage of the obtained linear segment experience time in the scanning period; calculating an average value of the obtained effective swing angles of the linear segments to obtain effective swing angles of the linear segments; according to the working characteristics of the detector and the ratio of the distance between adjacent sampling points to the elapsed time, obtaining the instantaneous speed and the average speed, and calculating the maximum speed deviation. The invention provides a method for detecting the performance of a laser scanning galvanometer, and the method can improve the imaging stability, guarantees the uniformity of a swing angle, and achieves the precise measurement of dynamic scanning parameters.
Owner:菲兹克光电(长春)有限公司
3D scanner with good adaptability
InactiveCN105407247AImprove scanning efficiencyGuaranteed scanning effectPictoral communicationEngineering3d scanning
The invention discloses a 3D scanner with good adaptability. The 3D scanner comprises a stage, a motor, a chute and a power unit. The motor and the stage are in drive connection. The stage, the motor and the chute are in sliding connection. The power unit drives the stage and the motor to move along the length direction of the chute. One end of the chute is provided with N first scanning units. The 3D scanner can scan materials of different heights and widths, and can realize three-dimensional scanning of objects on the stage due to rotation of the stage, thereby having a large scanning range, complete scanning data and good scanning effects. Unnecessary scanning operations are reduced, so that the resources are saved and the efficiency is improved. The 3D scanner can scan the object fromabove and below, thereby effectively guaranteeing the scanning quality.
Owner:合肥愿与网络技术有限公司
A method of flattening deformed pages
The invention discloses a flattening method of a deformed page. The flattening method comprises the following steps of: acquiring a matching point set from a left image or a right image; acquiring a corresponding point set from a right view or a left view through the matching point set and a digital image related method; concentrating a corresponding point of any one point A in the matching point set into an A'; acquiring a three-dimensional coordinate of the A through a binocular vision principle by utilizing two-dimensional coordinates of the A and the A' in the left image and the right image; determining an undetermined parameter in a page curve surface parameter equation through the three-dimensional coordinate of a matching point concentrated point and a fitting method; acquiring a flattened plane coordinate of any point of a page curve surface through the flattening method; acquiring a corresponding relation between gray level distribution on a space curve surface and gray level distribution of a flattened plane according to a corresponding relation between the space curve surface and a point on the flattened plane; and calculating a flattened image point by point. The method disclosed by the invention corrects character torsion and the corrected character is the same as a shot character when the page is flatly placed; and the scanning speed of a book is improved.
Owner:TIANJIN UNIV
Oral cavity scanning device based on optical coherence tomography principle
ActiveCN112245045AImprove real-time and flexibilitySave material costs and operating timeImpression capsTomographyThree dimensional model
The invention discloses an oral cavity scanning device based on an optical coherence tomography principle. Based on the optical coherence tomography principle, interference spectrum signals generatedby convergence of backscattered light of tissues with different depths and a reference light beam are detected, and parallel detection of depth information is realized through inverse Fourier transform. Longitudinal tomography capacity and horizontal screening function are combined, the invention provides the oral cavity scanning device which can realize real-time reconstruction of a digital oralcavity three-dimensional model being complete in data and high in resolution ratio under the non-ionizing radiation and non-intruding conditions. Compared with a traditional impression technology, complete digitization is achieved, the material cost and the operation time are saved, the comfort level of a patient and the model quality are improved, and the digitized model is convenient to store, transmit and analyze. The digital oral impression device has the beneficial effects that the existing digital oral impression technology does not have.
Owner:SOUTH CHINA UNIV OF TECH
Light source light emitting module
InactiveCN103363361AIncrease reflected lightNo loss of reflected lightElectric lightingLight fasteningsPrinted circuit boardLight source
The invention provides a light source light emitting module which comprises a wafer, a support and a printed circuit board, wherein the wafer is connected to the support, the wafer comprises a red light wafer, a green light wafer, a blue light wafer and an infrared light wafer, and the support is connected with the printed circuit board. Due to the fact that the infrared light wafer is additionally arranged based on the arrangement of the red light wafer, the green light wafer and the blue light wafer, the application range of the light source light emitting module is wider. The light source light emitting module can be used on scanning equipment made of materials sensitive to infrared light such as a currency detector.
Owner:敦南科技(无锡)有限公司
Book file scanning light compensating method and device
ActiveCN105959507AWon't loosenDropout phenomenonTelevision system detailsColor television detailsLight equipmentEffect light
The invention discloses a book file scanning light compensating method and device. The device comprises a V-shaped frame assembly. A reflecting mirror assembly is arranged in the V-shaped frame assembly. A light compensator is mounted on the reflecting mirror assembly. The light compensator mainly comprises a mounting strip and lighting instruments. The mounting strip is bended along a center line to form a V-shaped structure. The lighting instruments are symmetrically arranged on the bottom surface of the mounting strip along the center line of the mounting strip. The mounting strip and the lighting instruments are both arranged above the reflecting mirror assembly. The ends of the lighting instruments form included angles of 45 degrees or 135 degrees with the mirror surface of a reflecting mirror arranged in the reflecting mirror assembly. According to the device and the method, book files needing to be scanned are irradiated vertically by mounting the light sources of the lighting instruments above the reflecting mirror; the light intensity is improved; the shadows or ghosting on the pages can be removed; and the scanned file images are clearer.
Owner:衡阳华南出版装璜彩印有限公司
Scanning method, scanning device and scanner
InactiveCN102158626AShorten the timeReduce scan timePictoral communicationEngineeringPhotoelectric conversion
The invention discloses a scanning method. According to the drop location of a scanned original copy and width of an area to be scanned, a sensitive unit in a photoelectric conversion component is divided into a front section, a middle section and a rear section; after the photoelectric conversion component carries out photelectric conversion on the received light ray, only exposure voltage signals which are generated in the sensitive unit positioned at the front section and the middle section are output, thus the time of signal output by the photoelectric conversion component is shortened, and on the premises of ensuring the scanning quality, the scanning time is shortened. The invention also discloses a scanning device and a scanner.
Owner:QISDA SUZHOU +1
Holographic projection numeralization simulation experiment platform and application method thereof
InactiveCN106124731AQuality assuranceGuaranteed normal loadingEarth material testingX-rayPhysical model
The invention discloses a holographic projection numeralization simulation experiment platform and an application method thereof. The holographic projection numeralization simulation experiment platform includes a modeling mechanism and a loading scanning mechanism; the modeling mechanism is provided with a slide rail, a transparent template, a bottom bracket, a transfer motor, a stress slice, a pore pressure gauge, an infusion microtube, and a coal seam simulation material; the loading scanning mechanism is provided with an X-ray emitter, an X-ray receiver, a bearing sealing plate, a communicating hole, a hydraulic jack, a loading plate, a waste liquid pool, a holographic projection displayer, a projection cover, a model projection pattern, a data line, a liquid discharge pipe, an oil pressure pipe, valves, hydraulic pressure gauges, pressurization pumps, dissolved liquid pipelines, a dissolving liquid, water delivery pipes, liquid storage pools, a bus, and a central server. The modeling mechanism is used for modeling, the loading scanning mechanism is used for solid loading, liquid loading, coal seam re-mining, X-ray scanning, holographic projection and data processing, the three-dimensional numeralization and visualization analysis of a physical model are achieved, and valuable data are provided for scientific researches and prevention of mine disasters.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)
Paper feeding and walking structure of scanner
ActiveCN108900731AConvenient for whole paperIncrease frictionPictoral communicationMotor driveDrive shaft
The invention discloses a paper feeding and walking structure of a scanner. The paper feeding and walking structure of the scanner comprises a paper twisting bracket and a paper walking bracket, wherein the paper twisting bracket is provided with a paper twisting motor; the paper twisting motor drives a paper pickup and feeding transmission shaft to rotate; the paper walking bracket is provided with a paper walking motor; the paper walking motor drives a first paper walking roller to rotate; the first paper walking roller is meshed with a reduction gear set; the reduction gear set is connectedwith a paper walking rotation shaft through a gear or a transfer rod; a first one-way bearing is arranged in the paper walking rotation shaft; the paper walking rotation shaft drives a paper divisionwheel to rotate; the paper walking bracket is provided with a paper alignment sheet; the paper pickup and feeding transmission shaft is connected with a paper pickup and feeding rotation shaft through a second one-way bearing; the paper pickup and feeding rotation shaft is provided with a paper pickup and feeding wheel corresponding to the paper division wheel; the paper twisting bracket is provided with a paper alignment sheet bracket; the paper alignment sheet bracket is provided with a groove used for clamping a paper alignment sheet; the paper pickup and feeding transmission shaft is provided with a raising mechanism used for raising the paper alignment sheet.
Owner:宁波华高信息科技有限公司
Anti-vibrating image scanning device
ActiveCN105072308AMake up for suddennessImprove stabilityPictoral communicationContact image sensorTemperature control
The invention discloses an anti-vibrating image scanning device. The anti-vibrating image scanning device comprises a manuscript arrangement table, a contact-type image sensor, a frame, a connecting component, a driving component, a temperature control device and a control circuit board, wherein the manuscript arrangement table is used for arranging to-be-scanned manuscripts and comprises a box body and a glass plate, and a metal plate is arranged in the box body; the contact-type image sensor image sensor is used for obtaining characters and / or images in the to-be-scanned manuscripts; the frame is disposed in a box body, and the contact-type image sensor is disposed on the frame; the connecting component comprises a strip-shaped main sliding chute and a sliding block, and card clothing is paved on the bottom of the main sliding chute; the driving component comprises a rack, a gear, a driving motor and an electromotive push rod, all of which are disposed in the box body; the temperature control device comprises a temperature sensor, a fan and a single chip computer; the control circuit board is electrically connected with the contact-type image sensor, the driving motor and the electromotive push rod and controls on and off of the contact-type image sensor, the driving motor and the electromotive push rod. The anti-vibrating image scanning device disclosed by the invention not only has a simple structure and stable performances, but also has high scanning quality.
Owner:国家河南省电力公司鹤壁供电公司
An image reading apparatus and an imaging apparatus
ActiveCN102984426BSolve complex structuresSimple structurePictoral communicationComputer moduleEngineering
Owner:ZHUHAI PANTUM ELECTRONICS
A passbook printer with scanning and magnetic stripe reading and writing in the same channel
ActiveCN105313488BFunction increaseIncrease in sizeTypewritersOther printing apparatusProgressive scanPassbook
Owner:FUJIAN SHIDA COMP EQUIP
Automatic paper feeding scanning device
InactiveCN102300032AAvoid collisionPrevent fallingPictoral communicationBiochemical engineeringComputer module
The invention provides an automatic paper feeding scanning device. The automatic paper feeding scanning device includes an automatic paper feeding device and a flatbed scanner. The platform scanner includes a housing, a scanning module and a scanning platform, and the scanning platform has a first scanning window and a second scanning window, which are used to fix the first light-transmitting plate and the second light-transmitting plate respectively, wherein the second scanning window The inner edge is complementary to the side edge of the second transparent plate. The present invention has the advantages of preventing the scanning module from being impacted while moving and preventing dust from falling into the housing.
Owner:PRIMAX ELECTRONICS LTD
An oral cavity scanning device based on the principle of optical coherence tomography
ActiveCN112245045BSave operating timeImprove comfortImpression capsNon-ionizing radiationPatient comfort
Owner:SOUTH CHINA UNIV OF TECH
Spiral scanning method for terahertz wave beam alignment
ActiveCN113381818ALow costReduced scan pathElectromagnetic transmission non-optical aspectsComplex mathematical operationsLight irradiationEngineering
The invention discloses a spiral scanning method for terahertz wave beam alignment, and the method comprises the steps: firstly estimating an area where the terahertz signal intensity distribution is relatively large; setting a starting point in the area; enabling a receiver to carry out coarse scanning at the starting point spirally outwards until the power of a received terahertz signal is greater than a certain threshold value; and continuously increasing the spiral scanning precision to obtain a considerable power value after the coarse scanning is finished; and searching for the maximum power point meeting the precision by using an optimized hill climbing method in a fine scanning stage. According to the method, the spiral scanning algorithm with low time cost is used, the maximum power point of the terahertz signal is determined through the optimization algorithm, unnecessary scanning paths are reduced, the implementation method is simple and convenient and low in cost, and natural light irradiation experiments prove that the scanning quality can be guaranteed.
Owner:ZHEJIANG UNIV
A crack detection device for cylindrical parts
ActiveCN110307967BGuaranteed scan qualityReduce manual workMachine part testingConveyor partsEngineeringMechanical engineering
Owner:WUXI XIXI DIE FORGING CO LTD
Scanner rib structure, scanner, multifunction machine
ActiveCN110493486BEasy to slide outGuaranteed scan qualityPictoral communicationEngineeringMechanical engineering
Owner:至像科技有限公司
Automatically adapts to the scan assist tool for book archives
ActiveCN106027846BSimple structureEnsure safetyBook markersPictoral communicationEngineeringMechanical engineering
An auxiliary scanning tool capable of automatically adapting to books and files, comprising a V-shaped frame assembly and a book bearing plate assembly arranged below the V-shaped frame assembly, the book bearing plate assembly being capable of moving in a horizontal direction, and the V-shaped frame assembly being capable of moving along the direction perpendicular to the direction of movement of the book bearing plate assembly; when moving vertically, the V-shaped frame assembly can be inserted into the book bearing plate assembly, the V-shaped assembly being adjacent and parallel to the book bearing plate assembly. The tool is structurally simple and, due to the rationally designed structure, can ensure no damage is caused to the scanned material regardless of the thickness of the book archive or the height of the binding thread, whilst the scanner is able to automatically scan clearly and thoroughly, thus ensuring both the scanning quality and the safety of the book.
Owner:菏泽职业学院
Focus-adjustable mobile phone scanning bracket
PendingCN109040393AMake sure not to turnReasonable designTelephone set constructionsEngineeringMobile phone
Focus-adjustable mobile phone scanning bracket, includes horizontally arranged rectangular support plates, the top of the rectangular support plate is provide with a rectangular groove capable of holding A4 paper, The rear side of the rectangular frame is hinged with a transparent cover plate for covering the rectangular groove through hinges, the right front side of the transparent cover plate isprovided with a handle, the left middle part of the rectangular support plate is vertically provided with a lifting bar, the upper end of the lifting bar is provided with a horizontal telescopic barlocated directly above the transparent cover plate, and the right end of the horizontal telescopic bar is provided with a mobile phone clip. The invention has the advantages of reasonable design, simple structure, convenient operation, quick adjustment of focal length, especially suitable for mass scanning operation, strong stability and guaranteed scanning quality.
Owner:HUANGHE S & T COLLEGE
A helical scanning method for terahertz beam alignment
ActiveCN113381818BLow costReduced scan pathElectromagnetic transmission non-optical aspectsComplex mathematical operationsLight irradiationEngineering
The invention discloses a helical scanning method for terahertz beam alignment. The method first estimates the area where the terahertz signal intensity distribution is relatively large, and sets a starting point in the area, so that the receiver can scan at the starting point at this starting point. Coarse scanning is carried out in a spiral outward manner until the received terahertz signal power is greater than a certain threshold, and then the precision of the spiral scanning is continuously increased, so that a considerable power value can be obtained after the rough scanning, while in the fine scanning stage, the optimized hill climbing method is used to find The maximum power point that satisfies the accuracy. The present invention uses a low-time-cost helical scanning algorithm to determine the maximum power point of a terahertz signal through an optimized algorithm, reduces unnecessary scanning paths, has a simple implementation method and low cost, and the natural light irradiation experiment proves that the scanning quality can be guaranteed.
Owner:ZHEJIANG UNIV
Anti-vibration image scanning device
ActiveCN105072308BMake up for suddennessImprove stabilityPictoral communicationMicrocontrollerContact image sensor
Owner:国家河南省电力公司鹤壁供电公司
Automatic centering method and device for book file scanning process
A method and device for automatic alignment to center in a book archive scanning process. The device comprises a V-shaped frame component capable of moving in the vertical direction, a guiding mechanism capable of moving in the transverse direction provided below the V-shaped frame component, a locking mechanism used for controlling the positions of transverse movements provided within the guiding mechanism, and a book supporting mechanism provided above the guiding mechanism, the book supporting mechanism can move in the transverse direction with the guiding mechanism, and the V-shaped frame component can be inserted into the book supporting mechanism when moved in the vertical direction. The device and method implement alignment to center when scanning, thus ensuring scan quality, allow tight attachment when aligned to center, thus softening angle and reducing friction, and protect paper surfaces of book archives, thus ensuring the safety of the book archives.
Owner:ZHONGOU INTELLIGENT TECH JIANGSU
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