Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

311 results about "High magnification" patented technology

High magnification is a useful feature for revealing very fine details in target subjects. Typical applications include biomedical research, material analysis, electronics inspection, or any similar applications that require the examination of intricate structures.

Deformable lens

The utility model discloses a deformable lens, which comprises a first spherical lens group, a second spherical lens group, a first cylindrical lens group, a third spherical lens group, a second cylindrical lens group, a fourth spherical lens group and a twentieth lens which are sequentially arranged from an object space to an image space, the focal lengths of all the lens groups meet the following conditions: 1.4 lt; f (G1-G7) Y / f (G1-G7) Xlt; 1.6); 1lt; 1lt; f (G2) X / f (G1-G4) Xlt; -0.7,-0.7; -2lt;-2lt; f (G3) X / f (G1-G4) Xlt; -1.3,-1.3; 361t; 361t; f (G5) Y / f (G5-G7) Ylt; 24); 0.8 lt; f (G1-G4) X / f (G5-G7) Xlt; 1.2; 1.1 lt; 1.1 lt; f (G1-G4) Y / f (G5-G7) Ylt; and 1.7. The integrated design is adopted, so that the lens is small in size, and meanwhile, the optical performance of high resolution, low respiration, low distortion, 1.5 X high magnification and the like is obtained.
Owner:GUANGDONG SIRUI OPTICAL CO LTD

Galvanometer-based fan blade surface image acquisition system and acquisition method

The invention discloses a fan blade surface image acquisition system and acquisition method based on a galvanometer. The wide-angle camera is right opposite to a fan blade, the galvanometer control module is arranged right below the wide-angle camera, the high-magnification camera is arranged on the side of the galvanometer control module in the mode of facing the galvanometer control module, and the optical axis of the high-magnification camera is perpendicular to the optical axis of the wide-angle camera. The wide-angle camera and the high-magnification camera are respectively used for shooting a global surface image and a local surface image of the fan blade, and the wide-angle camera, the high-magnification camera and the galvanometer control module are electrically connected with the image processor. The variable-view camera module is constructed through the two cameras, synchronous acquisition of high-resolution image information of the surface of the fan blade under the large view is realized by combining the two-dimensional galvanometer, the problems of unclear imaging of the blade image, low acquisition efficiency and the like are solved, the health state monitoring and defect repairing of the blade in a wind power project are realized, and the method is suitable for popularization and application. The method has important theoretical significance and application value.
Owner:ZHEJIANG UNIV

Ultra-thin glass defect detection system and positioning method based on line scanning and phase deflection

The invention discloses an ultra-thin glass defect detection system and positioning method based on line scanning and phase deflection, and the system comprises a line scanning camera module, a distortionless phase deflection detection module, a high-magnification microscope module and a central processing unit. The line scanning camera module is used for collecting a 2D grayscale image of the ultrathin glass; the distortionless phase deflection technology detection module is used for collecting a surface height map of the ultra-thin glass; the high-magnification microscope module is used for carrying out depth positioning on the interlayer defect judged by the central processing unit; the central processing unit is used for receiving the 2D gray level image and the surface height map, executing an image registration and defect classification algorithm and sending a depth positioning control instruction to the high-magnification microscope module, a multi-module cooperative work detection system is constructed, the detection efficiency and the detection precision are both considered, and data support is provided for production process improvement.
Owner:FREESENSE IMAGE TECH

Virtual image generation method based on machine learning

The invention relates to the technical field of virtual image generation, and discloses a virtual image generation method based on machine learning, and the method comprises the steps: obtaining a reference image and text description information, and synthesizing the reference image and the text description information into a data set, thereby obtaining a feature set; according to the feature set, analyzing dominant hue distribution features and judging a style tendency, calculating texture complexity according to a judgment result, and analyzing a cartoonalization degree to obtain a cartoonalization degree quantitative index; and when the quantitative index is greater than a threshold value, setting a character proportion exaggeration coefficient as a high-magnification amplification parameter, and if the quantitative index is less than the threshold value, setting the character proportion exaggeration coefficient as a standard proportion parameter, performing real-time adjustment on the facial expression within a preset dynamic expression amplitude range according to the facial control point coordinates, and generating a control instruction. According to the expression change control instruction, synchronously calculating to obtain a coordination parameter; and performing dynamic rendering adjustment on the clothes according to the coordination parameters to obtain virtual image generation data. The method can solve the problem that the generation result deviates from the target style.
Owner:HANGZHOU ZDJOYS TECH CO LTD

Three-magnification double-telecentric optical path object detection system and detection method

The invention discloses a three-magnification double-telecentric light path object detection system and method. A detection part is arranged between a light source module and an object space telecentric light path module; the light source module comprises a white light annular LED array light source set and an adjustable grating arranged on one side, and a light uniformizing piece is arranged in the white light annular LED array light source set. Light emitted by the array light source group is homogenized by the built-in light homogenizing sheet and then forms uniform light beams through the adjustable diaphragm, and the uniform light beams are projected to the surface of a detection part; a light path switching mechanism is arranged on one side of the object space telecentric light path module, and the object space telecentric light path module comprises a low-magnification object space light path, a medium-magnification object space light path and a high-magnification object space light path; the light path switching mechanism is used for switching any one of a low-magnification object space light path, a medium-magnification object space light path and a high-magnification object space light path to enable light rays to be projected to the beam splitter prism, ambient light is removed through the beam splitter prism, and the transmitted light rays are transmitted towards an image space telecentric light path to enable the light rays to be projected to the industrial camera for imaging.
Owner:SUZHOU CHLOROMAN TECHNOLOGY CO LTD

Planar metal metasurface lens with high focusing efficiency

The invention relates to a planar metal metasurface lens with high focusing efficiency, and relates to the field of microwave lenses, the planar metal metasurface lens comprises a dielectric layer, two metal layers and split rings, the two metal layers cover the two end faces of the dielectric layer, a plurality of split rings are distributed on the metal layers at intervals, and the split rings are two groups of concentric segmented circular rings which are distributed inside and outside and are provided with symmetrical double openings; and the opening part of the inner ring deflects by an angle greater than 0 degree along the circle center, so that the segmented circular rings in the opening ring are asymmetrically distributed, and the focusing efficiency greater than 60% and the amplification factor of 16 times are realized. And the advantages of high focusing rate and high magnification are realized.
Owner:BEIJING INST OF ENVIRONMENTAL FEATURES

VCSEL (Vertical Cavity Surface Emitting Laser) array and multi-core fiber high-efficiency coupling and aligning system

The invention discloses a VCSEL array and multi-core optical fiber high-efficiency coupling and aligning system, and belongs to the field of semiconductor lasers. The VCSEL array and multi-core optical fiber high-efficiency coupling system comprises a VCSEL array, a micro lens array and a multi-core optical fiber. A layer of microlens array is arranged between the VCSEL array and the multi-core optical fiber, and divergent light beams emitted by the VCSEL array are focused through the microlens array, so that the light beams can be respectively aligned with each fiber core of the multi-core optical fiber for incidence. The invention further discloses a VCSEL array and multi-core optical fiber alignment system, on the basis of the VCSEL array and multi-core optical fiber high-efficiency coupling system, the system further comprises a CCD camera, a high-magnification visual system and piezoelectric motors, the VCSEL array, the micro-lens array and the multi-core optical fiber are fixed in the three piezoelectric motors respectively, the plane where the piezoelectric motors are located is an x-y plane, and the plane where the piezoelectric motors are located is an x-y plane. A CCD camera is placed at the position parallel to the x-y plane, image information of the VCSEL array, the micro-lens array and the multi-core optical fiber is captured, and machine vision automatic alignment is carried out.
Owner:BEIJING INST OF TECH +1

A pole piece and its preparation method and semi-solid battery

The present invention discloses a pole piece and a preparation method thereof and a semi-solid battery, which sequentially include a current collector, an active material layer coated on the surface of the current collector, and a solid electrolyte layer coated on the surface of the active material layer, wherein a microstructure is provided on the side of the active material layer away from the current collector, and the depth of the microstructure is greater than the thickness of the solid electrolyte layer. The positive and negative pole pieces are etched, marked or punched by laser, and microstructure processing is performed on the surface of the pole piece to achieve the expansion of the reaction area of ​​the electrode surface, improve the fast charging capability, and inhibit the generation of lithium dendrites. Most importantly, a solid electrolyte layer is coated on the surface of the pole piece, which can effectively prevent corrosion of the pole piece surface, protect the microstructure of the pole piece surface, improve the battery life and capacity retention rate at high rates, and extend the cycle life of the battery.
Owner:ZHEJIANG FUNLITHIUM NEW ENERGY TECH CO LTD

Wafer positioning method and device

The invention relates to a wafer positioning method and device. A global image of a standard wafer can be acquired based on a low-magnification lens, and template images of a plurality of target areas in the global image can be acquired based on a high-magnification lens, so that the low-magnification lens and the high-magnification lens are combined to ensure that the template image has a view field range and positioning precision; secondly, target images of all target areas on the corrected wafer are obtained through a high-magnification lens, the initial center positions of all template images in the corresponding target images are determined, and wafer coarse positioning is carried out to achieve the purposes of reducing the search range and adapting errors; performing wafer fine positioning by determining the target center position of each template image in the corresponding search area so as to solve the problem of image angle deviation, and further improving the matching robustness under a complex attitude; and the offset parameter of the corrected wafer is determined based on the target affine transformation matrix, so that wafer positioning with micron-level precision is realized, and a guarantee can be brought to subsequent process operation of the wafer.
Owner:QINGSOFT MICROVISION (HANGZHOU) TECH CO LTD

Beam splitter using multi-refractive index layer and defective element detecting device comprising same

Provided are a beam splitter using a multiple refractive index layer, which enables high magnification measurement by transmitting infrared light and reflecting visible light, and a defective element detection device including the same. The beam splitter includes a multiple refractive index layer and a base layer. The multiple refractive index layer is configured to reflect first light and transmit second light having a wavelength longer than a wavelength of the first light. The base layer is provided on one side of the multiple refractive index layer and configured to transmit the second light transmitted through the multiple refractive index layer. The multiple refractive index layer includes a first refractive index layer having a first refractive index and a second refractive index layer having a second refractive index less than the first refractive index.
Owner:KOREA INST OF MACHINERY & MATERIALS +1

Image preprocessing data processing method and system for small defects on surface of semiconductor equipment component

The invention provides a semiconductor device part surface micro defect image preprocessing data processing method and system, and relates to the technical field of data processing, and the method comprises the steps: carrying out the image quality normalization processing of an obtained high-magnification amplification surface original image, and generating a quality enhancement image; performing defect feature selective enhancement processing on the quality enhanced image to generate a feature optimized image; performing three-dimensional shape reconstruction on the feature optimization image to generate surface three-dimensional shape topological data containing height information; on the basis of the surface three-dimensional topography topological data, a topography reference origin is determined at the highest point of a local topography protrusion of the preliminary defect candidate area, and a first feature radiation vector and a second feature radiation vector are generated in a fitting mode from the topography reference origin in the main direction and the normal change gradient direction of the surface texture respectively; according to the invention, precise characterization of micro defects in a high-magnification magnification scene can be realized, and the accuracy and real-time performance of defect detection are guaranteed.
Owner:SHANGHAI JUKE FLUID CONTROL CO LTD

Railway platform displacement measuring system and measuring method thereof

A three-dimensional displacement measuring system for a railway platform comprises a laser, an angle sensor, a high-magnification camera and an LED (light-emitting diode) illuminating lamp which are respectively arranged on a fixed upright post, the target is adhered to the edge of the platform to form a measurement reference surface, and the horizontal distance between the stand column and the target is a preset value; the system establishes a virtual zero point and defines a space rectangular coordinate system XYZ, the X axis is in the longitudinal direction of the platform, the Y axis is perpendicular to the edge of the platform, and the Z axis is vertically upward. The invention provides a non-contact, high-precision and low-power-consumption railway platform three-dimensional displacement measurement method, which comprises the following steps of: performing periodic laser scanning and image acquisition on a target adhered to the edge of a platform by utilizing a vision measurement system formed by double lasers and a high-magnification camera and combining feedback information of an angle sensor; and the relative displacement of the X axis, the Y axis and the Z axis in the space is inversely calculated through a geometric model. The method can automatically complete the whole-process operation of zero calibration, photographing, identification, calculation, storage and the like, and meets the actual requirements of long-term structure monitoring of the railway platform.
Owner:CHINA RAILWAY BEIJING BUREAU GRP CO LTD BEIJING STATION +1

High-rate long-cycle sodium ion positive electrode material and preparation method thereof

The invention provides a high-magnification long-cycle sodium ion positive electrode material and a preparation method thereof.The high-magnification long-cycle sodium ion positive electrode material is of a core-shell structure and comprises a core material located inside and a coating layer coating the surface of the core material, the chemical general formula of the high-magnification long-cycle sodium ion positive electrode material is (NaxM1y) NiaFebMncM2dO2 (at) M, m represents a coating layer coated on the surface of the core material, and M is a mixture of NaCoO2 and Co3O4. According to the high-rate long-cycle sodium ion positive electrode material disclosed by the invention, the rate capability and the cycle performance of the material are synergistically improved by combining doping of the sodium site and the metal site of the internal core material and composite coating of NaCoO2 and Co3O4 on the surface of the core material.
Owner:HUNAN MEITE XINCAILIAO SCI & TECH CO LTD

Preparation method of high-rate wide-temperature-range regenerated graphite negative electrode material

The invention discloses a preparation method of a high-rate wide-temperature-range regenerated graphite negative electrode material, and belongs to the technical field of lithium ion battery recovery. The invention provides a preparation method of a high-magnification wide-temperature-range regenerated graphite negative electrode material, which combines a multi-section high-temperature synergistic treatment means and a lithium-rich catalytic surface modification technology, realizes impurity removal of a waste graphite negative electrode under the condition of lower energy consumption, and realizes effective repair of a graphite crystal structure. According to the method, through the synergistic effect of ultrahigh-temperature gasification and the reactive atmosphere, trace metal impurities which are most difficult to remove and fluorine-containing compounds with thermal stability are almost thoroughly removed, and the purity of the regenerated graphite is improved to be close to the level of a primary material (the purity gt is 99.9%); and a lithium-rich catalytic surface modification technology is adopted, so that the graphite surface can be stabilized, and the rate capability and low-temperature performance of the material are improved. The graphitization degree (gt; 95%) of the material is remarkably improved through the in-situ defect repairing effect driven by ultrahigh temperature, and the highly-ordered layered crystal structure and the excellent conductive network of the material are recovered.
Owner:JIANGSU CARBON HANG TECHNOLOGY CO LTD

Shooting optical lens

The invention relates to a camera shooting optical lens which is composed of a first prism, a first lens, a second lens, a third lens, a fourth lens and a fifth lens which are sequentially arranged from the object side to the image side. The maximum focal length of the shooting optical lens is fA, the back focus is BF, the image height is IH, the distance between the lens surface closest to the object side and the lens surface closest to the image side in the maximum focusing process on the optical axis is Lp, the total optical length is TTL, the curvature radiuses of the object side surface and the image side surface of the first prism are Rp1 and Rp2 respectively, the curvature radiuses of the object side surface and the image side surface of the fifth lens are R9 and R10 respectively, and fA * BF / IH is larger than or equal to 6.00 and smaller than or equal to 13.00. 0.40 < = Lp / TTL < = 0.51; rp1 / Rp2 is greater than or equal to-4.01 and less than or equal to-0.80; -0.80 < = (R9 + R10) / (R9-R10) < =-0.30. The camera shooting optical lens has the characteristics of long focal length, high magnification and miniaturization.
Owner:CHANGZHOU RAYTECH OPTRONICS CO LTD

Telecentric Imaging Combined with Scham Projection Three-Dimensional Microscopic Measurement System and Joint Calibration Method

The present invention discloses a telecentric imaging combined with Scheimpflug projection three-dimensional microscopic measurement system and a joint calibration method, which establish a Scheimpflug projection model, a Scheimpflug distortion model and a telecentric imaging model; capture and preprocess the target attitude images of the calibration plate, perform the phase unwrapping of the center of the telecentric camera and the center mapping of the projector, estimate the internal parameter intrinsic matrix, the external parameter matrix and the distortion coefficient of the projector, correct the projector distortion and the Scheimpflug angle; optimize the error of the external parameter matrix of the projector; align the three-dimensional coordinates of the center of the calibration plate to the coordinate system of the projector, and calibrate the projection matrix of the telecentric imaging model; perform the camera-projector joint calibration to realize the calibration of the three-dimensional microscopic measurement system with high precision. The present invention can solve the problem of limited depth of field under small field of view and high magnification, overcome the reconstruction error caused by defocus of the projection and imaging branches, and increase the dynamic measurement range and accuracy.
Owner:XI AN JIAOTONG UNIV

Zoom lens and imaging apparatus having the same

To provide a zoom lens that has a high variable power ratio and high optical performance and is capable of incorporating an electrically-driven zoom function.SOLUTION: A zoom lens comprises, in order from an object side to an image side, a first lens group L1 having negative refractive power, a second lens group L2, an intermediate group LM having one or more lens groups, and a final lens group LN. The zoom lens is configured such that respective intervals between adjacent lens groups change during zooming. The first lens group L1 includes two or more lenses. The intermediate group LM includes a first intermediate lens group Lm1 and a second intermediate lens group Lm2 disposed adjacently to the image side of the first intermediate lens group Lm1. The first lens group L1 and the first intermediate lens group Lm1 are immobile during zooming. A distance on the optical axis from the surface apex of the lens surface on the most object side of the first lens group L1 to the surface apex of the lens surface on the most image side of the first lens group L1 or the like is appropriately set.SELECTED DRAWING: Figure 1
Owner:CANON KK

Multifunctional mixed electrolyte for high-magnification long-circulation multi-electron reaction

The invention relates to a multifunctional mixed electrolyte for high-magnification long-cycle multi-electron reaction. The electrolyte is an aqueous electrolyte containing zinc salt, iodized salt and bromine salt; wherein the molar concentration of the zinc salt is 1-3 M, the molar concentration of the iodized salt is 0.1-1 M, the molar concentration of the bromine salt is 0.1-1 M, and the molar ratio of bromine ions to iodide ions is 0.1-10. The zinc-double-halogen battery has high ionic conductivity, efficient active substance utilization rate, excellent cycle performance and higher rate capability, and the electrochemical performance of the zinc-double-halogen battery can be remarkably improved.
Owner:LANZHOU INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES

Hierarchical optimization multi-example learning method for digital pathological section brain tumor classification

The invention discloses a hierarchical optimization multi-instance learning method for digital pathological section brain tumor classification. The hierarchical optimization multi-instance learning method comprises the following steps: extracting and aggregating multi-instance features through alternate training of a feature encoder and an aggregator; a region of interest is automatically searched in a low-magnification image, and then feature extraction and classification are performed on a high-magnification region of interest. According to the method, the region-of-interest is detected by using low magnification, and then the tumor category is comprehensively judged in multiple magnification near the region-of-interest in stages. More importantly, in a model training link, a feature extractor is trained by utilizing a pseudo tag of patch in a region of interest, so that features are better extracted for a specific task and a data set. In order to reduce the noise of the false label, the patent provides a label correction mechanism to ensure the purity of the false label. In general, the HOMIL combines low-magnification tissue structure characteristics and high-magnification cell characteristics, comprehensively predicts brain tumors, and greatly reduces the model reasoning time.
Owner:RES INST OF TSINGHUA PEARL RIVER DELTA

Wafer accurate positioning method and device, electronic equipment and storage medium

The invention belongs to the technical field of wafer positioning, and discloses a wafer accurate positioning method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining viewpoint images of different positions in a target wafer through employing a spiral collection method of a high-magnification objective lens, carrying out the image splicing of the obtained viewpoint images when each viewpoint image is obtained, and obtaining a target wafer image; the method comprises the steps of splicing viewpoint images of a wafer, carrying out mark point positioning on the spliced viewpoint images through a template matching method to obtain at least two spliced images containing preset mark points, calculating an angle offset according to position coordinates of the preset mark points to carry out angle correction, and then calculating the position offset of the wafer after angle correction to obtain an accurately positioned target wafer. The positioning precision is improved by utilizing the high-resolution characteristic of the high-magnification objective lens, the view field range of preset mark point search is expanded by utilizing the spiral multi-view image acquisition method, the objective lens does not need to be switched, the hardware of a visual imaging system is simplified, and the hardware cost of a positioning device is reduced.
Owner:JIHUA LAB

Wafer positioning and defect detection method and device and medium

The invention discloses a wafer positioning and defect detection method, and relates to the field of wafer defect detection. An existing detection method has the problem that defect detection accuracy and time cost cannot be considered at the same time. The detection method comprises the following steps: scanning and recording the position of a wafer to be detected, taking out the wafer according to the position, carrying out first-stage defect detection after eccentric correction and angle positioning, and recording defect information; if high-magnification reinspection is needed, imaging analysis is carried out on the first detection surface, the second detection surface and the surface of the wafer according to defect positions, and information is updated; and after the detection is completed, the wafer is stored at a designated position. Scanning and storing have multiple modes, and detection can be automatically executed through a computer program. The surface of the wafer is modeled and partitioned, two-dimensional regions are divided, and detection results are marked and recorded. According to the invention, primary detection and high-magnification redetection are combined, the defect detection accuracy and detection efficiency are considered, automatic detection can be realized, a production line can be adapted, and accurate and consistent detection is ensured through multiple positioning modes.
Owner:HANGZHOU GUANGYAN TECH CO LTD

New energy vehicle high-magnification charging pile task allocation method based on ant colony algorithm

The invention belongs to the technical field of intelligent optimization algorithm and new energy high-rate charging cross fusion, and provides a new energy vehicle high-rate charging pile task allocation method based on an ant colony algorithm. The method comprises the following steps: S1, pre-searching and filtering high-magnification charging piles of which the danger probability is greater than a threshold value to form a candidate set; s2, defining a high-magnification charging task set and a high-magnification charging pile set by adopting a graph model; s3, constructing a comprehensive cost function, and determining a weight coefficient of the comprehensive cost function; s4, the high-magnification charging pile carries out multiple rounds of searching; s5, performing local search optimization on the optimal solution obtained by each ant; and S6, matching optimization is carried out, and distribution is completed. According to the method, the problems of safety and efficiency in a traditional method are effectively solved by preprocessing and filtering the charging piles with too high danger probability, applying a multi-round search strategy, simulating pruning operation and applying a local optimization algorithm.
Owner:NANCHANG HANGKONG UNIVERSITY

Digital slice quality control method and device, electronic equipment and storage medium

The invention relates to the field of digital pathology, and provides a digital slice quality control method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a highest magnification tile of a digital slice to be subjected to quality control; based on a trained pathological defect segmentation model, carrying out pathological defect identification and segmentation on the highest-magnification tile to obtain a highest-magnification mask graph; performing pixel-level statistics on the highest-magnification mask image to obtain a single-tile quality control result, and summarizing the single-tile quality control result to obtain a global quality control result of the digital slice; and based on the highest multiplying power mask graph, reconstructing a pyramid mask graph containing multiple multiplying power hierarchies by adopting a plurality of parallel processes, and performing rechecking based on the global quality control result and the pyramid mask graph. According to the digital slice quality control method and device, the electronic equipment and the storage medium provided by the invention, the efficiency bottleneck problem of the quality control process is effectively solved through the technical innovation of reconstructing the pyramid mask graph by the parallel process.
Owner:HORWATH PANZE (XIAMEN) INVESTMENT CO LTD

High-magnification achromatic telecentric lens and optical system thereof

The invention relates to the technical field of optical lenses, and discloses a high-magnification achromatic telecentric lens and an optical system thereof. The optical system comprises a first lens G1 with positive focal power, a second lens G2 with negative focal power, a third lens G3 with positive focal power, a fourth lens G4 with negative focal power, a fifth lens G5 with positive focal power, a sixth lens G6 with negative focal power, a seventh lens G7 with positive focal power and a diaphragm T which are sequentially arranged from an object side to an image side, the system comprises a first lens G8 with negative focal power, an eighth lens G8 with negative focal power, a ninth lens G9 with negative focal power, a tenth lens G10 with positive focal power and an eleventh lens G11 with positive focal power. According to the optical system of the double-telecentric structure, the amplification factor can reach four times or above, the numerical aperture NA can reach 0.16, and the resolution of the microscopic level of 2 micrometers can be achieved; and the maximum imaging surface can reach phi 44 mm.
Owner:GUANGDONG AOPUTE TECH CO LTD

Digital slide microscopic scanning apparatus and slide microscopic scanning method

Disclosed is a digital slide microscopic scanning apparatus and a slide microscopic scanning method. The digital slide microscopic scanning apparatus has a sample library, a transfer device, and a scanning device. The transfer device is used to transfer slides containing biological microtissues between the sample library and the scanning device. The scanning device has a first camera and a second camera. The first camera scans the slide full-frame at a lower first magnification to obtain a first microscopic image and determines the target area of the slide based on this first microscopic image. The second camera scans this target area at a higher magnification to obtain a second microscopic image. Both the first and second microscopic images are acquired rapidly, and the size of data in the converted first digital file and the second digital file is small.
Owner:MARKETECH INT

Battery with P2-type layered oxide material as negative electrode

The invention provides a battery using a P2 type layered oxide material as a negative electrode, the chemical formula of the P2 type layered oxide material is CaT SnNa < x > MO2, M is a transition metal element, and x is more than 0.4 and less than 0.8. A battery structure taking the P2 type layered oxide material as a negative electrode has the advantages of long circulation, high magnification and low expansion rate, and is suitable for large-scale storage application.
Owner:YANGTZE RIVER DELTA PHYSICS RES CENT CO LTD

Continuous optical zoom slit-lamp microscope system and inspection method and application thereof

The invention discloses a continuous optical zoom slit-lamp microscope system and an inspection method and application thereof, and belongs to the technical field of ophthalmology medical equipment. The system is composed of a continuous zooming module, a light source module, a data processing module, a 3D imaging module and an AI identification module. The inspection method comprises the steps of equipment initialization and head position fixation of an inspected person, AI low-magnification (5 *) preliminary screening, adaptive lens high-magnification (40 *) fine observation, dynamic light source adjustment, three-dimensional data acquisition and cloud intelligent diagnosis. The method is applied to examination and intelligent diagnosis of eye diseases such as cataract. The problems that a traditional slit-lamp microscope is discontinuous in zooming, inconvenient to operate, lack of intelligent diagnosis and free of 3D stereoscopic display are solved, and the objective of the invention is to realize simple and convenient equipment operation, continuous examination process, intelligent diagnosis and stereoscopic display, facilitate collective teaching, significantly improve the diagnosis efficiency and accuracy of eye diseases such as cataract and the like, and improve the diagnosis efficiency and accuracy of eye diseases such as cataract and the like. And DICOM standard data cloud sharing and remote consultation are supported.
Owner:WEST CHINA HOSPITAL SICHUAN UNIV

Methods and systems for high-magnification photography exploiting reflective polarizers and faraday rotators

Described herein are systems and methods for enabling small high-magnification cameras or imaging systems to operate in low-light (e.g. night time) conditions. These systems include the use of reflective polarizers and non-reciprocal elements (Faraday rotators) to enable a longer light path, and to enable light from an image to reach the sensor.
Owner:LUMENUITY INC

Bimodal imaging system, imaging method, device and storage medium

The invention relates to the technical field of microscopic imaging, and provides a bimodal imaging system, an imaging method, a device and a storage medium, and the method comprises the steps: generating two laser beams as illumination light and reference light respectively; in the light intensity diffraction tomography mode, lighting light is turned on, the electric diaphragm is turned off to block the reference light, the lighting light passes through an imaging objective lens switched into a low-power objective lens in a first path, and a light intensity diffraction tomography image of the sample is obtained; lighting light is turned on in the optical diffraction tomography mode, an electric diaphragm is turned on to enable the reference light to be propagated along a second path, the lighting light passes through an imaging objective lens switched into a high-power objective lens in a first path, and an optical diffraction tomography image of the sample is obtained; bimodal microscopic imaging is realized based on the light intensity diffraction tomography image and the optical diffraction tomography image; the bimodal imaging system disclosed by the invention is integrated in a set of light path system, and unmarked refractive index imaging of global appearance and local characteristics of a sample can be realized by switching different modes under the control of the subsystem, so that bimodal microscopic imaging is realized.
Owner:CHENGGUAN OPTICAL TECHNOLOGY (NANTONG) CO LTD

Method and system for multi-resolution image reconstruction of pathological sections based on sparse sampling

The application discloses a pathological section multi-resolution image reconstruction method and system based on sparse sampling, which uses a low magnification imaging system to acquire a low-resolution image of a pathological section, and uses a high magnification imaging system to sparsely acquire high-resolution image blocks of a small number of representative grids of the pathological section, so as to reduce the number of high magnification imaging, improve the digitization speed and reduce the data storage amount. The high-resolution image blocks of the representative grids are sparsely sampled to supplement the high-resolution prior information lost by the low-resolution image, the information about the source and the manufacturing method of the pathological section is encoded by using a conditional vector, and the prior information of the pathological section lost by the low-resolution image is supplemented, so that the accuracy of the high-resolution image of the multi-resolution reconstruction is improved while the digitization speed of the pathological section is improved and the data storage amount is reduced, and the real-time performance and the accuracy required by the digitization of the pathological section are met.
Owner:CENT SOUTH UNIV