37119 results about "Optics" patented technology

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.

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.

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 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.

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 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.

The present invention discloses a ceiling-mounted fan light and an assembly method therefor. The ceiling-mounted fan light includes a ceiling-mounted box, a fan installed on the ceiling box, some light arms detachably assembled to the ceiling box, an arc-shaped lamp bracket provided at an extended end of each light arm, and lamp brackets. A connecting member is arranged between the head end of one lamp bracket and the tail end of an adjacent lamp bracket, so that the lamp brackets and light arms can be disassembled and reassembled during packaging and transportation by separating them into individual components to reduce space, while also reducing molding costs. The corresponding lamp groove provided on a lower side and / or an upper side of the lamp bracket is mounted by light-transmitting strip respectively to enable diverse lighting effects.

The invention relates to the technical field of earthquakes, in particular to an optical remote sensing image feature landslide information extraction method. A double-time-phase NDVI time sequence analysis strategy is adopted, and landslide area recognition is achieved by constructing a vegetation index difference chart before and after an earthquake. A landslide mass area before an earthquake presents a high NDVI value due to complete vegetation coverage, and a vegetation index of the area in an image after a disaster is significantly attenuated due to surface disturbance, so that an obvious change response is formed. If the normalized vegetation index does not change, a non-landslide area can be determined, and the greater the change of the normalized vegetation index is, the greater the possibility of landslide occurrence is, and a landslide preselection area is determined; then Otsu threshold segmentation is carried out by combining cloud layer features and water body features, cloud layer and water body change parts are effectively eliminated, object-oriented geometric shape rule fine recognition is carried out on a preselected area, a DEM is adopted to calculate a slope value to constrain low-lying or flat earth surface changes, and efficient and accurate landslide information extraction is achieved.

The invention discloses a photoelectronic device surface defect visual detection method and system based on image recognition, and the method comprises the steps: carrying out the processing and fusion of three-waveband image data, and obtaining a three-waveband composite image; constructing a DFD-Net double-branch deep network model, inputting a three-band synthetic image into the model, capturing multi-scale defect geometric features through an ASPP module with increasing voidage, extracting reflective insensitive texture features through a phase-consistent convolutional layer, and performing feature fusion by using a gated cross attention mechanism to obtain a multi-scale defect feature fusion model; performing coarse positioning on the fused feature image based on an improved YOLOv5 target detection algorithm to obtain a defect area image, and calculating a pixel-level mask of the defect area image to obtain a segmented image; and positioning a defect boundary of the segmented image through an NMS non-maximum suppression algorithm, and outputting defect coordinates and size information. And the surface defect detection efficiency of the optoelectronic device is improved.

A fan light is provided, including: a central assembly, which includes a housing and a control mechanism mounted inside the housing, where the housing can be connected to an external mounting structure; a fan blade assembly, which is detachably in pivotal connection to the control mechanism; and a lamp frame assembly, which includes a connector connected to the housing, and a first lamp frame and a second lamp frame that are connected to the connector. The first lamp frame and the second lamp frame are configured to have a first state of being rotatably unfolded relative to the connector and surrounding the fan blade assembly, and a second state of being rotatably folded relative to the connector. The fan light can conveniently switch states and is convenient for storage and transportation, and damage is avoided. Meanwhile, difficulty of operations cannot be increased.

Provided herein are imaging systems for a patient including an imaging probe and an imaging assembly. The imaging probe includes an elongate shaft with a rotatable optical core positioned within a lumen of the elongate shaft. The imaging probe further includes an optical assembly to direct light to tissue to be imaged and to collect reflected light from the tissue to be imaged. The system further includes an imaging assembly optically coupled to the imaging probe. The system further includes a processing unit with a processor and a memory coupled to the processor, and the memory stores instructions for the processor to perform an algorithm. The system records image data based on the reflected light collected by the optical assembly, such that the image data comprises data collected from a segment of a blood vessel during a pullback procedure. The algorithm can analyze the image data.

An optical transceiver module and an optical cable module using the same are provided. The optical transceiver module: a substrate; at least one optical receiving device connected to the substrate; a plurality of optical transmitting devices connected to the substrate, wherein the optical transmitting devices comprise a plurality of first optical transmitting devices and a plurality of second optical transmitting devices, and the optical transmitting devices are misaligned to each other.

The invention provides a dynamic focusing method and system based on a light spot image and a medium. The method comprises the following steps: focusing to any surface of an object to be measured, and obtaining a calibration image; calculating the center of mass of the focusing surface light spot of the to-be-measured object in the calibration image as a zero point; the method comprises the following steps: processing a light spot image acquired on the surface of a to-be-measured object to acquire a corresponding pixel line-pixel value curve graph; through analyzing peak points and valley points of the pixel line-pixel value curve graph, screening segmentation points of the pixel line-pixel value curve graph, and calculating a corresponding light spot centroid according to the pixel line-pixel value curve graph on the left side and / or the right side of the segmentation points corresponding to the target layer of the object to be measured so as to obtain a defocusing amount; the dynamic focusing is realized by analyzing whether the defocusing amount falls into the control range. The dynamic focusing method provided by the invention is simple and convenient in calculation and convenient for hardware implementation; meanwhile, the invention further provides simplified segmentation point calculation, so that the calculation efficiency is improved; and determining the break point for ensuring the accuracy of dynamic focusing.

The invention provides an intelligent detection method for surface defects of a protective film based on machine vision, which comprises the following steps of: extracting stress concentration areas and touch signal attenuation characteristics from potential risks of touch response delay, and performing grouping analysis on the stress concentration areas and the touch signal attenuation characteristics, the combined attenuation trend of the optical transmittance and the touch signal attenuation is obtained; the deformation degree of the stress concentration area is recognized, the touch signal attenuation degree of the folding area is determined according to the combined attenuation trend of the optical transmittance and touch signal attenuation, and the durability of the folding screen is obtained through evaluation; and extracting early warning indexes about the screen curvature radius and the light scattering intensity defect from the attenuation trend prediction result, and generating a complete report containing the optical transmittance and the touch signal attenuation defect.

The present application relates to the technical field of mirror turning attachment, and particularly relates to a mirror turning AA attachment assembly and an attachment method. The mirror turning AA attachment assembly comprises a lens attachment device, a frame fixing device and a transfer device. The lens attachment device comprises a lens fixing device, a lens feeding device and a lens cleaning device. The frame fixing device comprises a frame fixing device, a frame feeding device, a frame feeding device, a frame cleaning device, a dispensing device and a frame detection device. The mirror turning AA attachment assembly has the advantages that the pollutants on the attachment surfaces of the lens and the frame are removed, and the quality is improved. The deviation caused by the process of the mechanical hand handing over the lens to the lens AA attachment mechanism and the deviation caused by the process of the mechanical hand handing over the frame to the main shaft are corrected, the deviation accumulation is reduced, and the position is accurate when the final lens and the frame are attached together.

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 technical field of image detection and quality assessment, and discloses an image-based cable stranded wire quality assessment method and system, and the method comprises the steps: obtaining an illumination reflection image set of a cable stranded wire through employing a multi-angle annular illumination imaging mode; constructing a multi-angle reflection image sequence; generating a defect suppression highlight image; carrying out image enhancement and three-dimensional normal estimation; and outputting a quality grade evaluation result. In the prior art, fine scratches, burrs and distortion defects are difficult to accurately identify under the condition of strong reflection interference, and particularly, high-resolution quality evaluation cannot be realized under the conditions of complex surface structure of a cable stranded wire and non-uniform illumination response. According to the method, the multi-angle illumination model and the angle domain sparse unmixing mechanism are constructed, and the defect enhancement driven by the normal disturbance and the multi-modal fusion classification are combined, so that the precise positioning and grade evaluation of the tiny defect area are realized, and the precision of the quality detection of the stranded cable is improved.

The invention provides an infrared weak and small target detection method based on an adaptive sparse attention mechanism, and the method comprises the steps: collecting an infrared weak and small target image, carrying out the pre-screening through a bright and dark target balance module, and generating an infrared weak and small target data set; an infrared weak and small target detection model is constructed, the infrared weak and small target detection model is trained by using the infrared weak and small target data set, a trained infrared weak and small target detection model is obtained, and the model comprises an infrared image enhancement module, a linear embedding layer, an adaptive sparse attention Transform network and a low-rank approximate global feature fusion module which are connected in sequence; and inputting an infrared weak and small target image to be detected into the trained infrared weak and small target detection model to obtain an infrared weak and small target detection result. According to the method, the problem of insufficient detection precision of an existing method is solved, the robustness, the applicability and the real-time performance are high, and the visual perception capability of an infrared sensor platform to the surrounding environment is enhanced.

A lighting assembly is provided with a flexible elongate body extending between first and second ends thereof. The body has a base wall and a light transmissive cover. A lighting strip extends at least partially along the chamber. The lighting strip includes a plurality of light emitting members at least partially covered by the light transmissive cover. The body has a mounting arrangement configured to mount the lighting strip to the support. The mounting arrangement includes a first mounting formation on an outer surface of the elongate body. The mounting formation includes a recess, groove or channel on the outer surface of the body.

The invention relates to the technical field of SAR (Synthetic Aperture Radar) image processing, and particularly discloses an SAR image terrain radiation correction method considering overlay and shadow regions, which comprises the following steps: acquiring an SAR image, a DEM (Digital Elevation Model) image and a source file in a research region; carrying out multi-view processing on the original SAR image, resampling the DEM image, and carrying out radiometric calibration; geometric positioning is carried out according to the RD model by adopting an indirect positioning method, lookup tables A and B are generated, and images are registered; detecting pixels of the overlay area and the shadow area; calculating an effective scattering area corresponding to each SAR pixel; and performing radiation correction according to the effective scattering area, repairing a back scattering coefficient value of the shadow area, and finally performing geometric correction. According to the method, the topographic effect caused by an SAR imaging mechanism and topographic relief is eliminated to a certain extent, the radiation correction effect of an area with large topographic relief is improved, and the corrected product can be widely applied to the fields of ground feature inversion and classification, deformation detection, target detection and the like.

The present application belongs to the technical field of camera modules. Disclosed are a reflection driving assembly, a magnet assembling method therefor, a reflection module and a camera module. The reflection driving assembly comprises: a reflection base; a carrier, which is rotatably arranged on the reflection base and is adapted to carry a reflection element, the reflection element being able to reflect light rays in a direction parallel to a first axis to a direction parallel to a second axis; a reflection driving part, which comprises a second rotating magnet and a second rotating coil that are arranged opposite to each other so as to drive the carrier to rotate about a third axis with respect to the reflection base, the third axis being perpendicular to the first axis and the second axis; and a rotation position sensing part, which comprises a first sensing magnet and a first rotation sensing element that are adapted to measure the angle of rotation of the carrier about the third axis, the first sensing magnet and the second rotating magnet being arranged opposite to each other in a direction perpendicular to the third axis, and the first rotation sensing element being adapted to simultaneously sense magnetic fields of the first sensing magnet and the second rotating magnet. The present application can accurately sense the position of rotation of the carrier about the third axis, so as to implement closed-loop control.

A contact lens assembly includes a cup, a dry contact lens that is not for being worn on an eye, a sealing layer removably connected to the cup, and a wetting liquid supply. The sealing layer and the cup jointly form an enclosed space that receives the dry contact lens therein and that does not accommodate any liquid. After at least one of the sealing layer and the cup produces an opening, the cup can receive a wetting liquid from the wetting liquid supply through the opening, such that the dry contact lens is immersed in the wetting liquid to form a wet contact lens that is suitable for being worn on the eye and that has a water content greater than a water content of the dry contact lens.

The invention relates to an LED display device based on vertical stacking and a preparation method thereof, the display device is provided with a driving back plate and a mother pixel, the mother pixel comprises a plurality of sub-pixels, the driving back plate comprises a first type of electrode contacts and a second type of electrode contacts, and electric connecting pieces comprise copolar conductive pieces and non-copolar conductive pieces. Each non-copolar conductive piece corresponds to a different sub-pixel; one of the first type of electrode contacts and the second type of electrode contacts is a common-pole contact, and the other one is a non-common-pole contact; the driving backboard comprises a plurality of non-common-pole contacts, the plurality of non-common-pole contacts are divided into at least two ring groups, and each ring group corresponds to different sub-pixels; the non-co-polar conductive members are configured to be electrically connected to the non-co-polar contacts in the ring groups of the respective corresponding sub-pixels, and the co-polar conductive members are configured to be electrically connected to the co-polar contacts to form a co-polar structure. The invention further discloses a preparation method. According to the invention, the problem of overhigh local current density in the display device is effectively improved, and the reliability and stability of the device are effectively improved.

There is described a contact lens package containing a bowl for holding a contact lens and a flange around the bowl which may be made from a different polymer material than the bowl. The packages comprise at least one interface tab with at least one slot so that the second polymer material forming the flange can encapsulate the tab providing a mechanical interlock displaying good flexural strength.

The invention provides a cylindrical battery pole piece coating uniformity detection method based on machine vision, and relates to the technical field of machine vision, and the method comprises the steps: obtaining a multi-angle image, and carrying out the cylindrical surface expansion; carrying out polar coordinate gradient continuity analysis on the annular expanded image, extracting continuity characteristics of a seam, and adaptively adjusting light emitting parameters of the LED array to obtain an optimized image; coating edge contours, surface texture directivity and density distribution characteristics are extracted in a polar coordinate domain and a Cartesian coordinate domain, and a coating uniformity evaluation standard is established; and constructing a hierarchical feature fusion network comprising a polar coordinate attention module and a space attention module, carrying out adaptive weighted fusion on the annular features and the axial features, comparing a fusion result with theoretical coating uniformity distribution calculated based on coating process parameters, and outputting a detection result. According to the method, the accuracy and interpretability of coating uniformity detection of the cylindrical battery pole piece are improved, and a theoretical basis is provided for process optimization.

The invention provides a wide-angle scanning dual-circularly-polarized phased-array antenna unit, which belongs to the field of dual-circularly-polarized antennas and comprises a first dielectric layer, a second dielectric layer and a third dielectric layer which are sequentially stacked, the antenna radiator is arranged on the side, away from the second dielectric layer, of the first dielectric layer, the antenna radiator comprises four radiation patches, each radiation patch comprises a metal patch and a loading branch knot, and each metal patch is provided with a slotted structure; the first metal ground layer is clamped between the first dielectric layer and the second dielectric layer, and a cross coupling gap and a first coupling gap and a second coupling gap which are perpendicular to each other are formed in the first metal ground layer; the U-shaped feeder line is clamped between the second dielectric layer and the third dielectric layer, and two ends of the U-shaped feeder line are respectively connected with a coaxial feed column penetrating through the third dielectric layer; the second metal ground layer is arranged on the side, away from the second dielectric layer, of the third dielectric layer; an array is also provided; the problem that a traditional circularly polarized antenna is narrow in impedance bandwidth and limited in polarization is solved.

The invention provides an optical proximity effect correction method and system, a terminal and a medium, and the method comprises the steps: obtaining a plurality of initial parameter combinations of a photoetching mask design pattern, so as to form an initial population; wherein each initial individual in the initial population corresponds to a group of initial parameter combinations; determining a plurality of optimization indexes of the photoetching mask design graph, and determining an optical proximity effect correction function based on the plurality of optimization indexes and constraint conditions; and based on the optical proximity effect correction function, obtaining an optimal parameter combination of the photoetching mask design pattern in the iteration process of the initial population. According to the invention, the optimization algorithm is innovatively introduced into the field of optical proximity effect correction, comprehensive optical proximity effect correction is realized by introducing a plurality of optimization indexes, the manufacturing requirement of a high-precision silicon optical chip is effectively met, and the performance of the silicon optical chip is effectively improved.

A display device includes a pixel emitting light based on input image data, an age data calculator configured to generate age data of a light emitting element included in the pixel in consideration of a power voltage supplied to the pixel, and a compensator configured to output age compensation data by determining a grayscale compensation value corresponding to an input grayscale of the input image data, based on the age data, and applying the grayscale compensation value to the input image data.