58748 results about "Optics" patented technology

The invention relates to a display panel and a display device. The display panel comprises an array substrate, a light-emitting layer, an isolation structure and a touch layer. The light-emitting layer is located on one side of the array substrate, the light-emitting layer comprises a plurality of light-emitting units, the light-emitting units comprise a plurality of light-emitting unit sets, each light-emitting unit set emits single-color light, and each light-emitting unit set comprises at least one light-emitting structure arranged in the first direction. The isolation structure is located on one side of the array substrate and comprises an isolation opening, and the light-emitting unit is arranged in the isolation opening. The touch layer comprises a touch wire, the touch wire is arranged on the side, opposite to the array substrate, of the isolation structure, at least part of the orthographic projection of the touch wire in the thickness direction of the display panel surrounds the at least one light-emitting structure, and the touch wire is symmetrically arranged relative to a first symmetric axis passing through the centroid of the at least one light-emitting structure; and the first symmetry axis is parallel to the first direction. According to the invention, the possibility of color cast can be effectively reduced.

The invention relates to the technical field of surface quality detection, in particular to a PVC floor surface coating defect detection method and system, and the method comprises the steps: carrying out region division on a to-be-detected coating surface, obtaining a region scanning image, and carrying out image optical compensation on the region scanning image; analyzing high-dimensional image features of each area scanning image, performing difference analysis on the high-dimensional image features and reference features, and selecting a surface defect area; a high-dimensional defect feature analysis model is established, defect positioning information and defect geometric parameters are analyzed and generated, and the defect type of the surface defect area is judged according to the defect positioning information and the defect geometric parameters; and according to the defect positioning information and the defect geometric parameters, performing quantitative evaluation on the sensitivity weight of the surface performance of the to-be-detected coating in combination with defects, and outputting an overall surface performance influence analysis result. According to the invention, the problem that the capability of identifying small-size and complex-shape defects is insufficient is effectively solved.

To provide an endoscope system for calculating a region of a subject with a high degree of recognition precision while performing endoscopic observation, and to provide an operation method thereof.SOLUTION: An endoscope system 10 includes an endoscope 11, an air supply device 16, and a processor. The processor controls emission of illumination light for illuminating a subject S and measurement light for measuring a distance between a plurality of places of the subject S and the endoscope 11. The measurement light is emitted with a first air supply amount, the subject S is imaged by emitting or turning off the illumination light with a light amount suppressed with respect to the measurement light, and a region of the subject S is calculated from acquired first distance information. The measurement light is emitted with a second air supply amount, the subject S is imaged by emitting or turning off the illumination light with a light amount suppressed with respect to the measurement light, and a region of the subject S is calculated from acquired second distance information.SELECTED DRAWING: Figure 7

To solve the problem in which: electric charges generated by a tunnel effect increase in proportion to the area of a region where the electric charges are detected; and when the area of the region where the electric charges are detected is reduced, light detection efficiency may be reduced.SOLUTION: The magnitude of the potential of a fourth semiconductor region is lower than the magnitude of the potential of a portion between the fourth semiconductor region and a third semiconductor region, and the difference between the magnitude of the potential of a first semiconductor region and the magnitude of the potential of a second semiconductor region is larger than the difference between the magnitude of the potential of the fourth semiconductor region and the magnitude of the potential of the portion between the fourth semiconductor region and the third semiconductor region. The magnitude of the potential of the third semiconductor region is lower than the magnitude of the potential of the fourth semiconductor region, and the difference between the magnitude of the potential of the first semiconductor region and the magnitude of the potential of the third semiconductor region is larger than the difference between the magnitude of the potential of the second semiconductor region and the magnitude of the potential of the fourth semiconductor region.SELECTED DRAWING: Figure 1

This resin trough body has an approximately U-shape cross-sectional shape that includes a bottom section and side sections on the two sides. Vertical reinforcement ribs are formed at a prescribed interval on the outer surface of both side sections of a trough body of a prescribed length. Further, near the front and back ends of the trough body, horizontal ribs are formed so as to link two vertical ribs. An accommodation space for accommodating a grating lid is formed by a pair of L-shape members being fixed with bolts to a fixing jig that has been attached to the horizontal ribs. The grating lid is accommodated in said accommodation space, and the grating lid is fixed to a bolt fixing section, which is a mounting hole formed in the horizontal plane of the L-shape members.

Systems and methods are provided for targeting one or more features in a region of interest, and efficiently removing the features from an array of features. The systems and methods can remove one or more beads that contain analytes, intermediate agents, or a combination thereof, from the region of interest of a substrate by emitting light toward the beads on the substrate.

The invention relates to the field of resistor defect detection, in particular to an alloy resistor surface defect real-time detection method and system based on image processing. The method comprises the following steps: acquiring an alloy resistor surface image, calculating a local sudden disturbance factor of a pixel point, analyzing a gray offset condition and a gradient direction deflection condition in a neighborhood of the pixel point, and calculating a gray texture disturbance factor; calculating a local defect response factor; obtaining each candidate region, analyzing the shape of each candidate region, and constructing a salient region structure responsivity in combination with local defect influence factors of pixel points in the candidate regions; giving a suspected abnormal weight to each pixel point in the gray scale resistor surface image, constructing a weighted gray scale histogram based on the suspected abnormal weight and the gray scale value, obtaining a segmentation threshold in the weighted gray scale histogram by using an Otsu threshold segmentation algorithm, and detecting the surface defect of the alloy resistor; and the precision of alloy resistor surface defect detection is improved.

An optical physiological sensor configured to be secured to a user's nose includes a first prong configured to be positioned proximate an outside portion of the nose, a second prong configured to be positioned proximate an inside portion of the user's nose, a winged portion coupled to the first prong and configured to contact tissue of the user, one or more emitters configured to emit light of one or more wavelengths into the tissue, and one or more detectors configured to detect at least a portion of the light emitted from the one or more emitters after attenuation through at least a portion of the tissue. In some configurations, the winged portion comprises a width that is greater than a width of the second prong. In some configurations, at least a portion of the winged portion is curved toward the second prong.

Disclosed is a disinfection lamp with an underwater light projection effect, comprising an upper lampshade, a lower lampshade, a lens lampshade and a tube for containing sustained release chlorine tablets, wherein a circuit board and a battery are arranged on the lens lampshade, a solar panel is mounted on the surface of the upper lampshade, a first light bead is arranged on the lower surface of the circuit board, a light diffuser is arranged at a position, corresponding to the first light bead, of a bottom of the lens lampshade, the first light bead is located in the light diffuser, and the lower lampshade is mounted at the bottom of the lens lampshade. The disinfection lamp can float on water, and the tube containing the sustained release chlorine tablets is immersed in water, such that a conventional water purification, sterilization and disinfection effect is realized.

The invention relates to the technical field of image processing, in particular to an aluminum alloy casting processing forming quality evaluation method, which comprises the following steps of: acquiring a multi-angle image of the surface of an aluminum alloy casting, determining a brightness defect coefficient of each pixel point according to the difference between each pixel point and a neighborhood pixel point in the multi-angle image, and calculating the brightness defect coefficient of each pixel point; screening suspected defect pixel points according to the brightness defect coefficient, and determining a suspected defect area by utilizing a watershed algorithm and connected domain analysis; all edge pixel points of each suspected defect area are obtained, the density of each edge pixel point is calculated, feature edge pixel points are screened out according to the density, Fourier transform is carried out on a coordinate sequence of the feature edge pixel points, shape feature vectors of the suspected defect areas are constructed, clustering is carried out according to the shape feature vectors, and the shape feature vectors of the suspected defect areas are obtained. And obtaining a defect area. According to the method, the accuracy of the defect detection result of the surface of the aluminum alloy casting is improved by accurately analyzing the brightness characteristics and the shape characteristics.

A gonioscopic attachment can attach to a gonioscope and can include atraumatic retention elements that are configured to engage an eye to retain the gonioscope relative to the eye. The gonioscopic attachment can be configured to position the gonioscope so that at least a portion of the concave distal surface of the gonioscopic optical element is spaced apart from the eye, and / or so that the curvature of the distal surface is angularly offset from the curvature of the eye. The gonioscope can include a fixation point configured to be visible to the subject when the gonioscope is positioned on the eye. In some embodiments, the retention elements can be incorporated directly into the gonioscope. A coupling mechanism can couple the gonioscope to a lid speculum. The gonioscope can include a light pipe, which can be configured to directly light into the eye.

The invention relates to the technical field of defect detection, in particular to a suturing scalpel packaging quality detection method based on optic nerves, which comprises the following steps: collecting suturing scalpel packaging images to perform angular point detection and gradient screening, obtaining alignment parameters under a unified coordinate system, calculating an optical flow displacement initial value and a residual error, and calculating an optical flow displacement initial value; an ROI sub-image is cut to extract a cutting edge contour; an orthogonal projection length is calculated to generate a cutter form mark; texture and shape features are extracted and input into a support vector machine for defect identification; a random forest regression model is called to calculate compensation parameters; according to the method, coordinate mapping is established through angular point detection and gradient screening, displacement is corrected through combination of optical flow residual and depth tracking, a cutting edge contour is extracted through ROI cutting, shape deviation is quantized through orthogonal projection, a classification basis is constructed through texture fusion, defects are identified through a support vector machine, parameters are compensated through random forest regression, and performance is optimized through closed-loop feedback.

The invention provides a method and a system for detecting a distance from a welding spot center to an R angle. The method comprises the following steps: detecting a part having an interference relationship with a to-be-detected welding spot file; making a vertical line of a connecting part by taking the welding spot as a reference and a midpoint; making a cylinder to divide the outer surface of the connecting part; the dividing face is disassembled; processing each disassembled curved surface to obtain a curved surface boundary intersection line of each curved surface intersected with the cylinder; taking the welding spot as a reference, and respectively making a vertical plane from the welding spot to a curved surface boundary intersection line of each curved surface; taking a midpoint and two end points of a'curved surface-vertical surface 'intersecting line, and drawing a circle by three points; if the radius of the circle is larger than a configuration threshold value, the curved surface is a welding surface, and distance detection is qualified; if not, determining that the curved surface is a chamfered surface, and determining that the distance detection is unqualified. According to the invention, the detection logic is simplified, the distance detection from the welding spot to the R angle and the flanging is automatically realized, the detection is faster and more accurate, the risk is reduced, and the efficiency is improved.

The present disclosure provides a display substrate and a method of manufacturing the same, a display panel, and a display apparatus. The display substrate includes a base substrate, pixel units are arranged in an array on the base substrate, each pixel unit includes an anode, a light-emitting functional layer and a cathode, a pixel definition layer is provided, and has a plurality of openings, and each opening exposes a portion of an anode; the light-emitting functional layer is located in the opening; at least a portion of two opposite ends of the anode along a first direction is warped in a direction toward the cathode, an orthographic projection of the warped portion of the anode on the base substrate does not overlap with that of the cathode on the base substrate, and a hollow region is provided at a position of the cathode at least corresponding to the warped portion.

An apparatus includes an optical interposer including a first surface, a first mating protrusion extending outwardly from the first surface, and two or more alignment protrusions extending outwardly from the first surface. The first mating protrusion is to be partially disposed within a first recess formed in a second surface of a photonic integrated circuit (PIC) die when the first surface of the optical interposer opposes the second surface of the PIC die and respective distal surfaces of the two or more alignment protrusions contact the second surface of the PIC die. A first portion of an outer surface of the first mating protrusion is to contact a first side wall of the first recess and a second portion of the outer surface of the first mating protrusion is to oppose a second side wall of the first recess such that a second space is to be defined therebetween.

The invention provides a solar cell and a preparation method thereof, and a photovoltaic module, the rear surface of a semiconductor substrate is provided with a first region and a second region which are adjacent to each other, and the first region is provided with a first sub-region and first overlapping regions located at the two sides of the first sub-region; the first overlapping area is provided with a tunneling layer, a first doped conductive layer, a passivation layer, a second doped conductive layer and a first transparent conductive layer, the length of the first overlapping area in the first direction is D1, and the first direction is parallel to the surface where the semiconductor substrate is located; the rear surface of the semiconductor substrate is also provided with a third region and a fourth region which are adjacently arranged, and the third region is provided with a third sub-region and third overlapping regions located at the two sides of the third sub-region; the third overlapping region is provided with a tunneling layer, a first doped conductive layer, a passivation layer, a second doped conductive layer and a first transparent conductive layer, the length of the third overlapping region in the first direction is D2, and D1 is different from D2.

The invention discloses a solar cell and a manufacturing method thereof, and a photovoltaic module, and relates to the field of photovoltaic technology. The solar cell includes: a semiconductor substrate having a first surface including a first region and a second region adjacent to a first cut side; the second region comprises a step structure, an included angle is formed between the side wall of the step structure and the thickness direction of the semiconductor substrate, the first region is provided with a first pyramid structure, and the bottom wall of the step structure is provided with a first texture structure or a second pyramid structure; the first doping layer is arranged on the first region, and the height of the bottom wall of the step structure is lower than that of the first doping layer; the first passivation layer is arranged on one side, deviating from the semiconductor substrate, of the first doping layer and is arranged on the second region; the second passivation layer is arranged on the edge, close to the second area, of the first area, part of the second area and the first cutting side face. The passivation effect near the cutting side face is improved, carrier recombination is reduced, and the photoelectric conversion efficiency is improved.

An X-ray inspection device according to one embodiment of the present disclosure includes: an X-ray output portion irradiating X-rays to a battery including a cathode, a separator, and an anode in a stacking direction of the cathode and the anode; an X-ray detection portion acquiring a plurality of gray values based the X-rays that have transmitted through the battery; a signal processing portion acquiring an X-ray image including the plurality of gray values; and an inspection portion determining whether the battery is defective based on a distance between a first edge of an anode area including gray values representing the anode layer and a second edge of a cathode area including gray values representing the cathode layer in the X-ray image.

The invention relates to the technical field of computer vision image enhancement, and provides a zero sample learning defogging image enhancement method and device based on image decomposition, and the method comprises the steps: introducing three initial image layer generation networks: an initial clean image layer generation network, an initial atmospheric light image layer generation network, and an initial transmissivity image layer generation network; a target atmospheric light layer generation network and a target transmissivity layer generation network are obtained through joint training and are respectively used for determining a target atmospheric light layer and a target transmissivity layer of a to-be-defogged image, and a defogged image corresponding to the to-be-defogged image is solved by combining an atmospheric scattering model. In the joint training process of the three initial layer generation networks, only the to-be-defogged image is needed, a large number of training samples do not need to be introduced, the problem that in the prior art, the training samples of an image defogging model are difficult to obtain can be avoided, the calculated amount in the training process can be reduced, the training duration of the network can be shortened, and the training efficiency of the image defogging model is improved. And the training time cost of the network is reduced.

The invention belongs to the technical field of detection, and discloses a gas concentration infrared sensor and a detection method thereof.The detection method comprises the steps that transmittance data of two channels of the infrared sensor are collected in real time, and meanwhile sensor surface temperature and environment humidity parameters are obtained to form a multi-parameter synchronous collection data set; establishing a humidity compensation function based on the collected environment humidity parameters, dynamically correcting the transmittance of the main detection channel, judging the condensation risk according to the transmittance change rate of the reference channel, calculating the transmittance change rate of the main detection channel, extracting the humidity interference characteristic quantity of the reference channel, and generating fusion characteristic parameters; performing gas existence judgment, and triggering a gas existence flag bit; according to a gas existence flag bit state, adopting a temperature self-adaptive response value calculation method and combining environment compensation parameters to carry out concentration conversion, and outputting a gas concentration value; and through a multi-parameter synchronous acquisition and environment compensation mechanism, the problem of environment interference in a high-temperature and high-humidity environment is effectively solved, and the measurement accuracy is improved.

An optical element driving mechanism used for driving an optical element is provided. The optical element driving mechanism includes a fixed portion, a driving assembly, and a support assembly. The driving assembly is used for driving the optical element to move relative to the fixed portion in a first dimension. The optical element is movable relative to the fixed portion through the support assembly.

A display panel manufacturing method, a display panel and an electronic device, the display panel manufacturing method comprises: sequentially forming a pixel definition layer and an isolation layer on a driving backboard along a first direction, the pixel definition layer comprising a plurality of pixel definition structures arranged at intervals along a second direction, the isolation layer comprising a plurality of isolation columns, the isolation columns being in one-to-one correspondence with the plurality of pixel definition structures, the isolation columns being in one-to-one correspondence with the plurality of pixel definition structures, and the isolation columns being in one-to-one correspondence with the plurality of pixel definition structures; the isolation column comprises a first surface and a second surface which are oppositely arranged in the first direction, the first surface faces the pixel definition structure, and in the orthographic projection of the first direction, the second surface is located in the first surface; a first light-emitting structure is formed, the first light-emitting structure comprises a first light-emitting part and a first residual part which are spaced, the first light-emitting part is formed on the driving backboard and located between every two adjacent pixel definition structures, and the first residual part is formed on the second surface; and separating the isolation layer from the pixel definition layer. According to the preparation method of the display panel, the display effect of the display panel can be improved, and the manufacturing difficulty is reduced.

The invention relates to the technical field of foamed silicone rubber surface detection, and discloses a foamed silicone rubber surface detection method based on image visual identification, which comprises the following steps: acquiring a color image of a foamed silicone rubber surface, carrying out graying and normalization processing, and generating a diffuse reflection effective detection area by using a polarization filter difference technology; color abnormity is detected based on an image gridding and gray statistical method, meanwhile, pore and microbubble defects are detected in combination with minimum value seed point extraction and an eight-neighborhood region growing algorithm, finally, various masks are fused, the defect area and number are counted, and a quality inspection report is generated; the method can effectively inhibit highlight interference and accurately identify uneven colors and pore microbubbles, the detection process does not need external training, calculation is efficient, and the method is suitable for rapid detection and quality control of surface defects of foamed silicone rubber.

The invention provides an AR-based bridge crack detection analysis method and system, and relates to the technical field of bridge detection analysis, and the technical scheme is characterized in that the method comprises the steps: monitoring the ambient light parameters of a bridge detection region; adjusting illumination output to stabilize imaging illumination conditions of the crack region; acquiring a crack image, and acquiring polarization information of the crack; stokes parameters are calculated, and a polarization degree image and a polarization angle image are generated; extracting a crack two-dimensional contour based on the polarization degree image and the polarization angle image; fusing the two-dimensional contour of the crack with the depth data to generate a three-dimensional model of the crack; and based on the crack three-dimensional model, crack geometric parameter quantitative analysis and multi-stage evolution state evaluation are carried out. The AR-based bridge crack detection and analysis method and system provided by the invention have the advantages of overcoming the influence of outdoor complex illumination conditions on image acquisition quality, improving the accuracy of crack recognition and three-dimensional modeling, and supporting reliable multi-stage evolution state evaluation.

Pipe inspection systems including a push-cable, jetter, and camera assembly are disclosed. A jetter nozzle may be configured to spin and / or propel the camera head within a pipe or other cavity. A cutter line may be attached to the camera head to clean obstructions. A sonde may be coupled to a camera head to generate magnetic field signals for use with a buried utility locator to locate a pipe or other cavity into which the camera head is deployed.

The invention discloses a tenon morphology contour detection method and a contour tolerance, tooth pitch and cross-rod distance evaluation method in the technical field of aero-engine turbine blade detection, and the method achieves the spatial scanning of the tenon morphology contour through a four-axis coordinate device and a confocal spectrum sensor, collects data points, and can achieve the non-contact detection of the tenon morphology contour. The actual contour of the appearance contour of the tenon is obtained, the detection efficiency is higher, meanwhile, the surface of the tenon cannot be damaged, high-precision and high-efficiency detection of the appearance contour of the tenon is achieved, and the defects that current tenon measurement adopts manual operation, precision is not high, and digitization cannot be achieved are overcome. The detection requirements of large size curvature, high precision and complex evaluation parameters of the blade tenon of the aero-engine can be met at the same time.

The invention discloses an intelligent AI detection method based on an infrared thermogram and automobile diagnosis, according to the technical scheme, the fireproof safety detection efficiency of an electric automobile is remarkably improved through multi-modal data fusion and intelligent analysis, and a multi-dimensional data basis is constructed through synchronous acquisition of dual-band infrared and vehicle operation parameters; secondly, a dynamic correlation model realizes accurate triggering of abnormal current on heat map enhancement, partition gradient processing is combined with dynamic threshold adjustment to optimize detection sensitivity for thermal characteristics of different parts, three-dimensional thermal field reconstruction breaks through surface detection limitation, internal potential overheat points can be identified, and the detection sensitivity is improved; and finally, closed-loop diagnosis is formed through case library intelligent matching, so that the fault positioning precision reaches a component level, and the whole scheme is coordinated through a multi-level technology, so that the problems of low infrared thermal image contrast and relatively poor detail distinguishing capability due to the fact that electric vehicle fireproof safety detection is carried out only by depending on thermal infrared images in the prior art are solved.

Disclosed is a disinfection lamp with an underwater light projection effect, comprising an upper lampshade, a lower lampshade, a lens lampshade and a tube for containing sustained release chlorine tablets, wherein a circuit board and a battery are arranged on the lens lampshade, a solar panel is mounted on the surface of the upper lampshade, a first light bead is arranged on the lower surface of the circuit board, a light diffuser is arranged at a position, corresponding to the first light bead, of a bottom of the lens lampshade, the first light bead is located in the light diffuser, and the lower lampshade is mounted at the bottom of the lens lampshade. The disinfection lamp can float on water, and the tube containing the sustained release chlorine tablets is immersed in water, such that a conventional water purification, sterilization and disinfection effect is realized.

The disclosure relates to the technical field of photovoltaic power generation, in particular to a photovoltaic assembly convenient for angle adjustment, which includes a photovoltaic mounting base and a photovoltaic mounting frame. The photovoltaic mounting base is fixed on a fixture and is used for providing an installation station. The photovoltaic mounting frame is detachably mounted on the photovoltaic mounting base and can adjust angle, and a mounting end of the photovoltaic mounting frame can adjust mounting size and is used for mounting photovoltaic panels. The inclination angle of the photovoltaic panel can be detected in real time, and the angle of the photovoltaic panel can be adjusted according to environmental factors such as illumination, so as to adapt to the actual situation, ensure the smooth power generation and ensure the power generation.