40 results about "Direct imaging" patented technology

The invention belongs to the field of molecular sieve material characterization, and particularly relates to a method for analyzing aluminum atom pairs in a ZSM-5 molecular sieve based on super-resolution fluorescence microscopic imaging, which comprises the following steps: activating a ZSM-5 molecular sieve sample; contacting the obtained sample with probe molecules; washing the ZSM-5 molecular sieve sample, and removing unbound or nonspecifically bound probe molecules; imaging the marked sample by using a super-resolution fluorescence microscope to obtain an image sequence containing a single fluorescent molecule emission event; processing the image sequence, determining a space coordinate of each fluorescence event, and reconstructing a super-resolution fluorescence image exceeding an optical diffraction limit; and based on the space coordinates of the fluorescent dots in the super-resolution fluorescence image, carrying out statistics to obtain the position, surface density or distribution information of the aluminum atom pairs in the ZSM-5 molecular sieve. According to the method disclosed by the invention, nanoscale spatial resolution, direct imaging and quantitative analysis of Al-pair in ZSM-5 (Zeolite Socony Mobil-5) can be realized.

The embodiment of the utility model provides a kind of water cooling system and laser direct imaging equipment, it is related to laser direct imaging equipment technical field.The water cooling system of laser direct imaging equipment includes water cooling machine, water cooling part and temperature regulating device.Water outlet main pipe and water inlet main pipe are connected on water cooling machine.Multiple water cooling parts are respectively installed on multiple heat-generating parts.Water cooling part is communicated with water outlet main pipe by first branch pipe.Water cooling part is also communicated with water inlet main pipe by second branch pipe.Temperature regulating device is installed on water cooling part.Temperature regulating device is used to adjust the temperature of cooling water into water cooling part.The utility model can adopt a set of water cooling machine to carry out accurate temperature control to multiple heat-generating components in laser direct imaging equipment simultaneously, improve equipment stability, without multiple water cooling machine equipment, reduce equipment cost.

This invention relates to the field of industrial visual inspection technology and discloses a visual inspection device for surface defects of stator and rotor laminations after fine grinding. It aims to solve the problems of neglecting burr detection on the lamination surface of existing stator laminations, and the issues of reflective interference, efficiency bottlenecks, and difficulty in balancing reliability and high cycle time in double-sided inspection. The device includes a conveying component, a support frame, a limiting component, a visual recognition component, and a projection lamp. By vertically conveying and positioning the motor stator and rotor laminations and fixing them with a V-shaped clamp, combined with a dual inspection method of projected shadows and direct imaging of the lamination surface, it overcomes reflective interference and reduces the risk of false positives and missed detections. The visual inspection sensor dynamically scans to achieve continuous inspection, improving inspection cycle time and throughput, adapting to large-scale online production, avoiding missed detections, preventing insulation damage during lamination, and ensuring motor efficiency, reliability, and service life.

The application discloses a dielectric high-space-resolution trap imaging method and system based on a scanning probe microscope, and the method comprises the following steps: recording a sample surface topography image sequence and a surface potential image sequence after removing a voltage; correcting image offset according to the surface topography image sequence, and extracting surface potential decay data of each pixel point from the corrected surface potential image sequence; determining trap distribution information of each pixel point by fitting and calculation according to the surface potential decay data of each pixel point; and forming deep and shallow trap energy level peak value images and / or deep and shallow trap density peak value images corresponding to the film surface topography according to the trap distribution information of all pixel points and the original positions of the pixel points. The method directly images the trap characteristics of a sample at a nanometer scale, and has the advantages of high spatial resolution and intuitive comparison.

1. Name of the designed product: laser direct imaging machine. 2. Use of the designed product: advanced equipment used in the manufacturing process of printed circuit board (PCB). 3. Design points of the designed product: in shape. 4. Picture or photo that best indicates the design points: perspective view.

The invention provides a solder mask roll-to-roll direct imaging device, the device comprises a roll loading station, an exposure station and a rolling station, the roll loading station and the rolling station are provided with a material receiving mechanism and a constant tension feeding mechanism, the material receiving mechanism is used for adsorbing and positioning to assist material receiving, and the constant tension feeding mechanism conveys materials with protective films removed through longitudinal movement; the exposure station adopts a multi-coordinate fusion positioning exposure machine which is calibrated and aligned from an alignment coordinate system, an exposure coordinate system, a calibration coordinate system and a world coordinate system to a reference coordinate system. According to the direct imaging equipment, reel-to-reel arrangement is adopted, the material receiving mechanism and the constant tension mechanism provide stable material supply, the exposure station adopts the exposure machine for multi-coordinate fusion positioning, the laser photoetching machining precision is guaranteed, the overall productivity is improved through multi-column arrangement, and popularization and application in the laser machining field or the submicron photoetching field are facilitated.

The invention discloses a multi-exposure offset method for improving PCB ink color difference and a medium. The multi-exposure offset method comprises the following steps: preparing a PCB substrate coated with ink; determining the power ratio of a plurality of lasers in the laser direct imaging equipment; an exposure parameter set corresponding to the multiple exposure modes is established, the exposure parameter set at least comprises an exposure dose parameter and an exposure starting point offset parameter, and the total exposure dose of the multiple exposure modes is equivalent to the single exposure dose required for improving the chromatic aberration target; based on the exposure parameter set, the laser direct imaging equipment is controlled to execute at least two times of exposure operation on the same target pattern area on the PCB substrate, and the starting point positions of the exposure operation are different from one another. According to the invention, multiple exposure is carried out by setting different starting points for the same pattern area, so that the light path energy is dispersed and homogenized, the chromatic aberration in PCB ink exposure is efficiently compensated, and the product yield is improved.

The invention relates to a brain region positioning magnetic resonance data processing method based on nerve stimulation target optimization, and the method comprises the steps: obtaining the functional magnetic resonance imaging data of a subject, extracting the signal response sequence of each brain region before and after nerve stimulation through time domain analysis, and determining the brain region with a characteristic response time window according to the response delay difference; the method comprises the following steps: detecting delayed oscillation characteristics in a cortex signal based on a neural feedback relationship between a cortex region and a deep structure to determine potential regulatory pathways of thalamus and other deep brain regions so as to position indirect stimulation targets which cannot be directly imaged; decoupling analysis of cerebral blood flow signals and nerve activation signals is carried out on the candidate brain area, and when it is detected that blood flow fluctuation exists in the area but synchronous nerve activation is lacked, it is judged that the area is a pseudo activation area and excluded; according to the method, the time delay correlation degree between the stimulation sequence and the brain region signal is calculated through the improved cross-correlation integral function, and the high-frequency noise interference is suppressed in combination with the nonlinear attenuation item, so that the estimation of the brain region response delay is more stable and repeatable.

The invention provides a material roll buffering device, a material roll buffering method and roll-to-roll direct imaging equipment, and belongs to the field of laser processing. The material coil buffering device comprises a material coil bottom plate, a material coil side plate, a material coil air expansion shaft module, a plurality of inertia fixing wheel sets, a material coil adsorption material receiving module, a separating and combining film fixing wheel set, a protective film adsorption material receiving module, a protective film air expansion shaft module and a buffering tension wheel module. The reel-to-reel direct imaging equipment comprises a reeling station, an exposure station and a reeling station, the exposure station adopts multi-coordinate fusion calibration, the exposure positioning precision is compensated and corrected by adopting a vector diagram position, and the exposure precision is improved. According to the device and method, through constant-tension feeding and material caching, the feeding or collecting progress and precision of the material coils can be effectively controlled, the equipment alignment precision is high, the high-precision exposure machining yield and efficiency are guaranteed, and application and popularization in the laser machining field are facilitated.

This application discloses a method and system for observing trace gas fluxes, relating to the field of environmental remote sensing technology. The method includes simultaneously acquiring three-dimensional wind speed spatial distribution data and trace gas concentration spatial distribution data within the observation area, determining spatiotemporally matched wind speed-concentration data, extracting vertical wind speed fluctuation data and gas concentration fluctuation data from these data, determining the turbulent vertical transport rate jointly determined by the vertical wind speed fluctuations and gas concentration fluctuations, and using this as the target trace gas vertical turbulent flux at each spatial location; based on the target trace gas vertical turbulent flux at each spatial location, generating a two-dimensional distribution map of the target trace gas vertical turbulent flux within the observation area. This application can solve the problem of missing spatial information in the single-point method of related technologies, enabling direct area-scale imaging of trace gas turbulent fluxes and intuitively displaying the spatial characteristics of the flux.

The present application relates to a kind of multispectral imaging methods for human electronic angioscope, belong to medical instrument technical field.Therein, the method includes: by ultramicro infrared enhanced image sensor, photoelectric signal conversion is carried out to target near-infrared spectrum, based on focusing lens, the imaging light in blood vessel is focused, the overall specification is calibrated to adapt to the intervention demand of most blood vessels of human body;Based on the requirement of avoiding blood interference, preset three kinds of near-infrared spectrum wave band, corresponding multispectral light source is built and is coupled with endoscope optics;Under the assistance of image device, endoscope is pushed to target blood vessel, and image is collected according to wave band and is transmitted to external terminal;Terminal passes through adaptive algorithm, and noise reduction, signal enhancement, generates visual image.It realizes real-time optical direct imaging in blood vessel, solves the problems such as no direct optical imaging, blood interference, low resolution of traditional technology, improves the lesion recognition clarity and diagnostic efficiency, provides support for intravascular precise diagnosis and treatment.

The invention provides a suction-pressure positioning material receiving mechanism and roll-to-roll direct imaging equipment, and belongs to the field of laser machining, the suction-pressure positioning material receiving mechanism comprises an adsorption cavity, an adsorption top plate, a plurality of material receiving lifting drive assemblies, two material receiving pressing pieces and a scrap groove; the two adsorption top plates with adsorption holes are arranged at the top of the adsorption cavity side by side at intervals; the scrap groove is arranged in the middle of the top surface of the adsorption cavity and is positioned below an adjacent gap of the two adsorption top plates; the material receiving lifting driving assemblies are installed at the four corners of the adsorption cavity, the two material receiving pressing pieces are installed on the material receiving lifting driving assemblies on the corresponding sides, and the material receiving pressing pieces are driven by the material receiving lifting driving assemblies to ascend and descend relative to the adsorption top plate and used for pressing and positioning materials. The suction-pressure positioning material receiving mechanism is simple in structure and easy to achieve, the suction top plate is provided with the suction area and the non-suction cutting area, the material belt is fixed through the material receiving pressing piece while suction positioning is conducted, therefore, efficient and clean auxiliary material receiving is achieved, and the suction-pressure positioning material receiving mechanism is conveniently applied and popularized in the material belt material receiving and laser machining field.

A radiation treatment system includes a radiation delivery system including a rotatable gantry that is coupled to a static portion of the radiation treatment system and a radiation source that directs treatment radiation to a target volume and is mounted on the rotatable gantry for rotation about the target volume. The radiation treatment system further includes a computed tomography (CT) imaging system that generates portions of a CT scan of a region of patient anatomy that includes the target volume, wherein the CT imaging system includes an arcuate array of x-ray detectors, and an array of x-ray sources positioned around the target volume, wherein each x-ray source in the array of x-ray sources is oriented to direct imaging x-rays towards a different portion of the arcuate array of x-ray detectors.

Compounds of Formula (I) and Formula (II), which are capable of binding to granzyme B. Also provided herein are pharmaceutical compositions comprising such for use in, for example, imaging Granzyme B and / or treating immunoregulatory abnormalities.

The application discloses a manufacturing method of a flexible circuit board for a wearable device in the technical field of circuit board manufacturing, and the base material of the circuit board adopts a polyimide-spandex composite base material, wherein the spandex is a twisted short fiber, the twist degree is 550-600 T / m, the length is 3-6 mm, and the weight dosage is 8-12% of the weight of the polyimide; the calendered copper foil is hot-pressed and connected on the composite base material, and then laser direct imaging and etching are performed to obtain a circuit board with copper lines; subsequently, the covering film is bonded on the surface of the circuit board through hot pressing, and the circuit board is completed. The application adopts a low-temperature process, adds the spandex twisted short fiber with good elasticity into the polyimide, so that the spandex twisted short fiber can keep the twist degree from being excessively lost, the bending resistance of the flexible circuit board can be significantly improved, the polyimide base material and the flexible circuit board are softer, and the flexible circuit board is not easy to deform when repeatedly worn.

The invention relates to the technical field of electronic material and semiconductor manufacturing, and discloses a DCB substrate high-precision pattern half-etching processing technology. The method comprises the steps that S1, a DCB substrate is taken, cleaned, coarsened and washed with water; s2, a negative dry film is attached to the copper surface of the DCB substrate treated in the step S1 in a hot pressing mode to serve as an anti-etching mask; s3, designing a laser engraving pattern; s4, performing scanning exposure on the DCB substrate pressed and covered with the dry film in the step S2 by adopting laser direct imaging equipment according to the laser engraving pattern designed in the step S3; s5, developing the DCB substrate subjected to scanning exposure in the step S4 by using a developing solution to form a graphical anti-etching window; s6, immersing the DCB substrate developed in the step S5 into an etching solution, and etching the copper layer exposed from the anti-etching window; and S7, taking the DCB substrate after chemical etching in the step S6, removing the dry film, washing with water, and drying. The method has high precision and high flexibility, and the product quality is remarkably improved.

The invention relates to a lensless fluorescence detection chip and device based on micro-nanofiber and a preparation method, the detection device comprises a fluorescence detection chip, a light source and an image acquisition device, and the detection chip comprises a plurality of microfluidic cavities; one surface of the image sensor chip is attached to the substrate, and the other surface of the image sensor chip is covered by PDMS; the micro-nano optical fiber is packaged between the PDMS and the micro-fluidic cavity; alignment is achieved through PDMS packaging, and the complexity and cost of the system are greatly reduced. The micro-nano optical fiber comprises a waist area in the center, unstretched areas located at the two ends of the waist area, and transition areas between the waist area and the unstretched areas, by means of the space locality of an evanescent field of the waist area of the micro-nano optical fiber, exciting light is naturally limited in a cavity area and is significantly attenuated before reaching an image sensor chip, and therefore optical filter-free fluorescence detection is achieved; an external optical filter, a lens or an external detector is not needed, excitation of the evanescent field is focused in the cavity, signals are directly imaged, loss is reduced, and detection sensitivity is remarkably improved.

The application discloses a kind of high contrast imaging wave front detection and correction method and system, this method uses FPGA and CPU hybrid programming architecture to realize high-precision high contrast imaging wave front detection and correction, locking is realized to high contrast imaging dark area in closed-loop correction, wherein, high-precision wave front slope calculation is completed in FPGA, sub-aperture image division and wave front recovery calculation are realized in CPU, and voltage control deformable mirror correction wave front aberration is output.The application uses hybrid programming architecture to carry out high contrast imaging wave front detection and correction, realizes high-precision wave front detection and correction, solves the problem of insufficient performance of CPU for aerospace, and then realizes the locking of high contrast imaging dark area of space coronagraph, for direct imaging detection of exoplanet.After wave front detection and correction, the energy stability of high contrast imaging dark area can be guaranteed, and dark area locking is completed.

Methods and systems of ultrasonic imaging multiple depth zones. One method includes imaging a first zone using multi-angle plane wave imaging, imaging a second zone using tissue harmonic imaging, and forming a 3D image based on the received signals from the first zone and the second zone. The imaging for each zone is “thick slice” imaging, generating multiple slices through the imaged medium. Multiple frequencies can also be used. The depth of each zone can vary based on the ultrasonic array, and correspondingly, the F# used for imaging the zone. In an example, zones can be imaged at different F#'s, for example, at F#1 for the first zone, at F#2, F#3, or F#6 for one or more zones that extend deeper into the object than the first zone. Such methods can include blending the transitions between the first and the second zone, and / or generating interpolated frames between directly imaged frames.

The application discloses a kind of digital direct imaging device exposure pattern position precision compensation method, it is related to digital imaging technical field, after the technical problem that the exposure pattern position precision each area is not consistent in prior art processing is solved;The present application does not need to help complex tool, exposure substrate is the material commonly used to generate laser direct imaging device, calibration condition and process are very simple;The alignment camera of the digital direct imaging device of the present application is a calibrated coordinate system itself, and the accurate position of the mark pattern in the exposed pattern can be identified, and each position of the exposed pattern can be compensated using different compensation parameters;The present application has low compensation cost, and does not need additional cost to improve and optimize hardware system by digital compensation method for CAM pattern;Moreover, compensation is free and flexible, and the CAM pattern is digitally compensated, and similar transformation, affine transformation and perspective transformation can be used flexibly according to specific requirements for each subdivided area.

1. Name of the designed product: Scientific camera (GLORIA). 2. Use of the designed product: The designed product is used for microimaging, for trapping biophoton correlation fluorescence spectroscopy, for direct imaging in high-energy physics, for recording astronomical phenomena such as solar physics, orbit tracking, etc. in cell biology and electrophysiology experiments. 3. Design points of the designed product: The design points of the designed product lie in the overall shape. 4. Picture or photograph best indicating the design points: Design 1 perspective view. 5. Design 1 is designated as the base design.

The invention provides a multi-material 3D (three-dimensional) printing device with FDM (frequency division multiplexing) and double-screw DIW (direct imaging welding). The device comprises a supporting frame, a three-axis movement system, a printing platform and an extrusion device, the three-axis movement system comprises an X-axis movement system, a Y-axis movement system and a Z-axis movement system, the printing platform is arranged on the X-axis movement system, and the extrusion device comprises a fused deposition molding assembly and a direct ink writing assembly and is arranged on a rigid support. The fused deposition modeling assembly is provided with a heat dissipation module and a heating module, and the direct ink writing assembly adopts double screws and can achieve single / double slurry extrusion through a material conveying switch. According to the 3D printing device, FDM and DIW ink direct writing 3D printing technologies are fully integrated, the limitation of a traditional simple composite scheme is broken through, the problem of stable extrusion of high-viscosity special materials is solved, collaborative printing of thermoplastic plastic and high-performance functional ink is achieved, and the manufacturing requirements of continuous fiber reinforced composite materials and complex multifunctional integrated components are met.

The invention belongs to the field of photoelectric detection imaging, and provides a photoelectric detection imaging integrated chip and a use method thereof. The chip comprises a substrate, a light emitting diode array, a first P-type electrode layer, a first N-type electrode layer, a first insulating layer, a first bonding layer, an electrode interconnection layer, an avalanche photodiode array, a second P-type electrode layer, a second N-type electrode layer, a second insulating layer and a second bonding layer. The avalanche photodiode array units are connected with the light emitting diode array units in a one-to-one correspondence manner, and each light emitting diode array unit is composed of a plurality of interconnected partitions. Through the multi-partition interconnection structure design of the light emitting diode, the problem that the working voltage of the avalanche photodiode and the working voltage of the light emitting diode are not matched is solved; through pixel-level precise bonding of the avalanche photodiode array and the light emitting diode array, direct imaging of a detected target optical signal is realized, and the problem of low response speed of a traditional high-sensitivity photoelectric detection imaging system is solved.

The application provides a processing method, system and application of sparse compression reconstruction of an LDI sub-pixel image, the method comprising: calculating, by a computer image compression algorithm, a low-resolution to-be-exposed image corresponding to each phase structure in advance; loading the calculated low-resolution to-be-exposed image to a digital micro mirror in a time sequence, wherein the display time of each pattern matches the rotation position of the corresponding phase structure; coupling the pattern of the digital micro mirror and a phase encoding mask in a frequency domain through a 4-f optical system, and reconstructing a high-resolution exposure pattern at a sub-pixel level by using a diffraction effect; projecting the high-resolution light field of the reconstructed high-resolution exposure pattern to a photoresist surface, and forming a target circuit pattern by accumulating an exposure dose; and obtaining a micro-nano structure with sub-pixel accuracy after development. The system comprises an image compression module, a pattern matching module and a pattern forming module. The application reduces the manufacturing cost of a laser direct imaging device under the condition of the same accuracy.

The invention discloses a method for manufacturing a through printing plate by directly manufacturing a mask pattern through laser, and solves the problems that a silk screen is easy to damage, materials are limited and the efficiency is low in a traditional method. The method comprises the following steps: spreading a pattern area of a mask material on the surface of a substrate, flattening, and fixing with the substrate; using focused laser to cut the mask material along the cutting line to form an opening contour line; the adhesive force between the fragment-shaped mask material and the substrate is reduced through heating laser, suction removal is carried out, and an opening is formed; repeating the process to make all openings; making a positioning mark; and after the adhesive is coated, aligning with a silk screen, pressing and curing to obtain the through printing plate.

The invention provides a multi-coordinate fusion positioning exposure machine and reel-to-reel direct imaging equipment, and belongs to the field of laser processing, the exposure machine comprises a base seat, a material carrying table, an exposure head and an upper alignment camera module; a top suction carrier plate of the material carrying table corresponds to a reference coordinate system, an upper alignment camera module and a lower alignment camera assembly of the material carrying table correspond to an alignment coordinate system, an exposure head corresponds to an exposure coordinate system, a correction camera of the material carrying table corresponds to a calibration coordinate system, and a base seat corresponds to a world coordinate system. And the alignment coordinate system, the exposure coordinate system, the calibration coordinate system and the world coordinate system are calibrated and aligned to the reference coordinate system to realize fusion and unification of multiple coordinate systems. According to the exposure machine, through multi-coordinate system fusion, accurate alignment and dislocation compensation are realized, the exposure precision is improved, and the exposure machine is convenient to popularize and apply in the field of laser processing.

The utility model discloses a large table-board laser direct imaging exposure device of a printed circuit board, which relates to the technical field of large table-board laser direct imaging exposure of the printed circuit board and comprises a fixed seat, an L-shaped frame is fixedly connected to the middle of the top end of the fixed seat, and an automatic adjusting assembly is fixedly connected to the top end of the inner wall of the L-shaped frame. Sliding strips are fixedly connected to the two sides of the inner bottom wall of the L-shaped frame, a fixing assembly is slidably connected to the inner walls of the sliding strips, the automatic adjusting assembly comprises a fixing frame fixedly connected to the top end of the inner wall of the L-shaped frame, and fixing blocks are fixedly connected to the two sides of the top end of the fixing frame; through the arrangement of the automatic adjusting assembly, when a worker operates the device for use, the servo motor drives the transmission rod and the threaded rod to rotate and drives the sliding block and the sliding plate to linearly move, so that the position of the laser direct imaging exposure machine body can be quickly and accurately adjusted, and the exposure requirements of printed circuit boards with different sizes are met; and the exposure efficiency and precision are greatly improved.

The invention discloses a spherical mirror three-dimensional contour calibration method based on reflection geometry. According to the method, two-channel geometric constraints of direct imaging and specular reflection imaging are constructed, and synchronous imaging characteristics of a chessboard calibration plate in a camera direct view area and a spherical mirror reflection area are utilized, so that high-precision calculation of spherical mirror space contour parameters is realized. The method comprises the following steps of: firstly, acquiring a plurality of groups of calibration images comprising checkerboard direct images and specular reflection images thereof, and respectively detecting and classifying angular point features in the two types of images; and then, based on the known physical size of the chessboard and the internal reference of the camera, recovering the three-dimensional position of the angular point of the chessboard in a world coordinate system by adopting a PNP algorithm, and providing a space reference for solving a reflection point. High-stability and high-precision spherical mirror parameter calibration is realized without an additional complex device, and the method has good universality and engineering feasibility and can be applied to the fields of panoramic imaging systems, reflective optical measurement, robot vision calibration, high-precision optical element detection and the like.

The invention discloses a depth-of-field expansion three-dimensional imaging system based on a double-helix super lens. The system comprises the double-helix super lens integrated with a zooming function. The double-helix super lens has a sub-wavelength structure, the depth information of an image can be identified, and the double-helix super lens has high-precision measurement capability in the field depth range; the zooming function can be realized by combining the power-up, polarization, spectrum multiplexing and the like of tunable materials such as liquid crystal and the like, and the depth measurement range of the system is expanded. According to the system, wide-range and high-precision depth measurement and imaging are realized by utilizing the micro-nano imaging lens integrated with the zooming function, the problem that an existing depth detection system cannot give consideration to direct imaging, wide range and high precision is solved, efficient three-dimensional imaging is favorably realized, and depth detection imaging in various scenes can be met.