478 results about "Automatic focus" patented technology

The present invention provides an automatic focusing method, an electronic device, and a readable storage medium. The automatic focusing method comprises: using a target detection model to detect a target object in an image frame acquired at an initial focal length by an optical imaging device to be focused, so as to acquire a target object detection result; on the basis of the target object detection result, determining whether a target object is present in the image frame; if yes, determining an actual object distance on the basis of the target object detection result and the initial focal length, and on the basis of the actual object distance and a mapping relationship between the object distance and an optimal imaging focal length, determining the optimal imaging focal length; and if not, using a preset search algorithm to search for a focal length until an image having the highest definition value is found, and using a focal length corresponding to the image having the highest definition value as the optimal imaging focal length. The present invention primarily employs a deep learning-based automatic focusing method, supplemented by an image definition evaluation method. Compared with traditional passive focusing methods, the present invention greatly improves the focusing efficiency. Compared with traditional active focusing methods, the present invention eliminates a need for adding an additional optical ranging component, ensuring that the imaging device has a simple structure and a low cost.

The invention provides a focusing method, device and equipment. The method comprises the following steps: determining pixel offset between a red channel image and a green channel image of a tissue slice; the red channel image and the green channel image are a red channel image and a green channel image of a tissue slice in a ghosting image captured by the color image sensor when a red light filter, a green light filter and double optical wedges in the focusing module are modulated at the same time; determining an out-of-focus distance according to the pixel offset and a preset corresponding relation; the preset corresponding relation is the corresponding relation between the pixel offset and the defocus distance; and focusing according to the out-of-focus distance. According to the method provided by the embodiment of the invention, the problem that positive and negative defocusing directions cannot be distinguished through a single-frame image in a phase shift detection automatic focusing technology based on image monochromatic double-hole modulation is solved, and the problem of time waste caused by high-speed switching of an illumination light source in an automatic focusing technology based on red-green double-LED illumination is solved; and meanwhile, the problem that a phase shift detection automatic focusing technology based on pupil segmentation images is relatively small in focusing range is solved.

The invention discloses a real-time automatic focusing hyperspectral acquisition method and a real-time automatic focusing hyperspectral acquisition device. The real-time automatic focusing hyperspectral acquisition method comprises the following steps: step 1, acquiring dark background pixel signals; 2, automatic focusing is carried out; 3, repeating the step 2 until the requirement is met, recording automatic focusing data, and performing spectrum acquisition to obtain original spectrum data; step 4, calculating a full-width object distance matrix of the original spectral data based on the phase difference finally obtained in the step 3; 5, correcting the original spectral data based on the full-width object distance matrix to obtain corrected spectral data; and step 6, calculating the corrected reference plate spectral data based on the corrected spectral data and the dark background pixel signal, calculating the reflectivity of the target object to be measured, and realizing real-time automatic focusing hyperspectral acquisition. The method innovates a phase difference analysis method, and efficiently processes light change and target offset in a dynamic scene; the combination of the two improves the focusing precision and stability, effectively solves the problem that the scanning target in the dynamic scene is liable to defocus, and achieves the efficient adaptation of the dynamic scene.

The invention belongs to the technical field of optical imaging equipment, and particularly relates to a lens driving device which comprises a base and a motor mechanism, the motor mechanism comprises a frame which is arranged on the base, an AF coil is arranged on the side wall of one side of the frame, and the AF coil and an AF magnet arranged on the side wall of the base are oppositely arranged so that the frame can move in the third direction relative to the base; the OIS coil plate is arranged in the frame, and an OIS coil is arranged in the OIS coil plate; the carrier is arranged in the frame, the OIS coil plate is located between the carrier and the frame, an OIS magnet is arranged at the bottom end of the carrier, and the OIS magnet and the OIS coil are oppositely arranged so that the carrier can move in the first direction and the second direction relative to the frame. Through an innovative position design mode, magnets adopted by AF zoom operation and anti-shake operation are independent and do not interfere with each other, and the stability of automatic focusing and optical anti-shake control is ensured.

The invention relates to the technical field of industrial automation and machine vision, and discloses an automatic debugging calibration system and method. The method comprises the following steps: establishing standard parameters, recording hardware installation parameters and software process parameters of reference laser processing equipment, and establishing a standard parameter library; preparing to-be-debugged equipment, and completing basic hardware installation and program import of the to-be-debugged equipment according to the standard parameter library; starting a VAC automatic debugging process, and sequentially executing automatic focusing confirmation, photographing position confirmation, light source intensity confirmation and pixel equivalent confirmation; coordinate system calibration of the laser and the camera is executed, and the coordinate transformation relation of the laser and the camera is established; static and dynamic repeatability verification is carried out, and precision and stability are evaluated; the optimized debugging parameters are stored, and parameters of other devices are migrated; through the automatic VAC process, manual debugging of several hours or even several days is shortened to the minute level, the machine difference caused by human factors is eliminated, and efficiency and consistency are greatly improved.

The invention discloses a high-precision automatic focusing system and focusing method for a continuous zooming television camera, and solves the technical problem of insufficient focusing precision caused by image delay and system rotation errors in the prior art. According to the method, the definition evaluation value of the current frame image is associated with the exposure time of the current frame image in the CMOS imaging stage, the definition evaluation value of the image and the corresponding exposure time of the current frame image are obtained at the same time in the automatic focusing process, and the clear position deviation of the focusing motor caused by image delay is accurately compensated; by means of trajectory planning in the search process of the image sharpness evaluation value extremum of automatic focusing, it is guaranteed that the direction of reaching the most image sharpness evaluation value extremum finally is consistent with the direction of searching the extremum, the method completely eliminates the influence of system rotation errors, and the adaptability is higher; and all units are integrated on the same FPGA platform, so that more product space is saved, the communication transmission delay of the definition evaluation value is eliminated, and the focusing precision is higher.

The invention relates to the technical field of automatic focusing control, and discloses a rotary objective switching control method and system, a storage medium and a processor, and the method comprises the following steps: obtaining the actual position of an objective turntable based on a magnetic encoder, carrying out curve planning according to the actual position information, and carrying out the open-loop control of a motor to drive the objective turntable to rotate; and after entering a set error range of the actual position and the target position, ending curve planning and starting closed-loop control, and based on a relation model of deviation weight vectors of the actual position and the theoretical position of the magnetic encoder at the zero point and a motor output weight vector, controlling a motor to output pulses according to deviation so as to realize switching and positioning of the rotary objective lens. According to the scheme, the turntable end magnetic encoder is adopted for positioning, locking is carried out based on a fuzzy control strategy after curve planning is finished, the clamp spring only plays a role of a damper and does not need to be positioned, and the precision requirement of the clamp spring and the equipment manufacturing cost are reduced.

The invention discloses a fitting method for automatic and rapid zooming and focus following of an ophthalmic camera, and relates to the technical field of image processing and automatic focusing. According to the method, firstly, rapid calibration is carried out, a lens is initialized to a minimum zoom position, an optimal focus point is obtained through an automatic focusing algorithm, Zoom-Focus mapping data are sequentially collected at five sites from ZoomA to ZoomE, and calibration is completed within one second; secondly, on the basis of Lagrange nonlinear fitting, by taking an exponential function model as a target, constructing a Lagrange function, iteratively solving parameters through a Newton method, and reconstructing a complete Zoom-Focus curve by using five sampling points; and finally, during real-time zooming, positioning a nearest sampling point according to a current Zoom value, dynamically calculating an optimal Focus value through a fitted curve, and driving a focusing motor to adjust an image distance. According to the invention, high-precision focus following can be realized by only needing five sampling points, the cost is remarkably reduced, and the clear imaging requirement of real-time zooming in ophthalmic diagnosis is met.

The invention provides a dynamic interference focusing method and system based on a Michelson interferometer, and the method comprises the steps: obtaining interference fringes under different defocusing amounts through employing the dynamic interference focusing system based on the Michelson interferometer, carrying out the analysis of the received interference fringes through an upper computer, and obtaining phase information, based on the phase information of the interference fringes corresponding to different defocusing amounts, a mapping relation between the defocusing amounts and the phase information is constructed; in the application, the current interference fringes are obtained through the dynamic interference focus fixing system of the Michelson interferometer, the current interference fringes are analyzed through the upper computer to obtain the current phase information, and the current defocusing amount is obtained by adopting the mapping relation based on the current phase information. And moving the sample to a calibrated focal plane position by controlling a dynamic interference focus fixing system of a Michelson interferometer based on the current defocusing amount to complete automatic focus fixing. The method can achieve the nanoscale focusing sensitivity.

The invention relates to the technical field of optical detection and automatic control, and discloses a computer vision-assisted nano-particle recognition and micro-spectrum automatic measurement system, which comprises a sample positioning module, an imaging module, an optical measurement module and a processing control module, automatic focusing is realized on the basis of a definition evaluation value calculated by performing Fourier transform on the microscopic image; graying, binaryzation and morphological operation are carried out on the focused image so as to identify effective nano-particles and calculate centroid coordinates of the effective nano-particles; according to the coordinates of the center of mass, the X axis and the Y axis of the electric three-axis displacement table are controlled through closed-loop iteration movement, and the measured particles are accurately positioned to the center of the view field. According to the invention, the problems of low manual measurement efficiency, poor repeatability and complex operation in the prior art are solved, and high-flux, full-automatic and high-precision measurement of the spectral characteristics of the nanoparticles is realized.

An automatic focusing method, a laser processing apparatus and system, and a non-transitory computer-readable storage medium are provided. The automatic focusing method for a laser processing apparatus includes: controlling the first light output module to emit a first light spot onto a workpiece, and controlling the second light output module to emit a second light spot onto the workpiece; controlling the first light output module to move downward, and acquiring a plurality of images of the workpiece at different distances; and determining, based on the plurality of images, a distance between a processing surface of the workpiece and the first light output module or a thickness of the workpiece.

The invention provides a microscope automatic focusing method based on an end-to-end model, and relates to the technical field of optical instruments. The method comprises the following steps: shooting an image on a microscope glass slide through an image acquisition module, and carrying out image preprocessing through a gray histogram equalization algorithm; deploying an end-to-end neural network model at the cloud server, receiving the preprocessed image and predicting a first focusing position value; the first focusing position value is sent to an electric focusing module controlled by a stepping motor, and focusing is completed; and acquiring a second image, performing image preprocessing, predicting a second focusing position value by using the end-to-end neural network model, and sending a relative position between the second focusing position value and the first focusing position value to the electric focusing module to complete final automatic focusing. According to the method, the optimal focusing position is directly predicted from the microscopic image through the deep learning model, a traditional focusing scoring function or an image sequence analysis process is simplified, end-to-end efficient prediction is realized, and the focusing speed and precision are remarkably improved.

The invention discloses an on-orbit automatic focusing method for a spaceborne space target observation camera, relates to the technical field of space application of spaceborne cameras, and solves the problems of poor real-time performance and insufficient unattended operation adaptability of a manual focusing technology in the existing focusing technology. And meanwhile, in the automatic focusing technology, the hardware structure is complex, the space environment adaptability is weak, satellite-borne platform resources are limited and difficult to deploy, and focusing is difficult in a severe out-of-focus scene. According to the invention, the realization of automatic focusing is divided into a coarse adjustment stage and a fine adjustment stage. A large step pitch is adopted in the coarse tuning stage, rapid crossing is achieved, and an area adjacent to a positive focus position is rapidly positioned; in the fine adjustment stage, small step pitch is adopted, fine adjustment is achieved, and the peak position is accurately locked. The contradiction between the search speed and the positioning precision is balanced. When far away from the positive focus, a large-step-pitch fast approximation peak region is used, so that the number of iterations and the number of image acquisition frames are greatly reduced; when the focus is approached, small step pitch is switched for fine tuning, and the final precision is ensured.

The invention provides an automatic focusing device, an automatic focusing method and wafer quantity detection equipment, and belongs to the field of semiconductor optics, and the device comprises a light source, an illumination dimming mirror group, a beam splitting element, a reflector, an objective lens, a distance measurement dimming mirror group, a focal plane measurement unit, a dispersion compensation mirror group and a focusing compensation mirror group; the focal plane measuring unit can measure the focal planes of a plurality of process layers of the wafer and determine the focal length from the target focal plane to the objective lens, thereby realizing automatic focusing. According to the scheme, the dispersion compensation and objective lens measurement combined design is adopted, high precision and a large measurement range are achieved through dispersion curve control, specific quantity detection scanning can be conducted on a specific process layer of a wafer through the focusing compensation lens set, and the measurement precision is improved. And the method is convenient to popularize and apply in equivalent detection scenes of wafer nanoscale key dimensions, defects, overlay alignment and the like and in the photoetching processing field.

The invention discloses a plano-convex lens curvature radius intelligent measuring and calculating system and method based on Newton ring interference, and relates to the technical field of optical measurement, and the system comprises a light path calibration unit which is used for enabling target light to enter a Newton ring device at a preset angle based on a calibration device; the automatic focusing unit is used for acquiring Newton ring images at different positions of the lens cone 8 based on the Newton ring device, screening the Newton ring images based on a pre-trained focusing scoring model to obtain a first image, obtaining a target position based on the first image, and adjusting the position of the lens cone 8 of the Newton ring device to the target position; the image acquisition unit is used for acquiring a second image based on the Newton ring device; the data measuring and calculating unit is used for classifying the second image based on a pre-trained image screening model to obtain an effective image with a central spot, and obtaining the curvature radius of a plano-convex lens based on the effective image, the problems that a traditional Newton ring measurement system is poor in adjustment precision, poor in reading accuracy, lack of automation degree and weak in external interference resistance are solved.

The invention discloses an off-axis alignment device, an off-axis alignment method and photoetching equipment. The device comprises a light source module used for providing a first light source signal for a silicon wafer, the silicon wafer is provided with a coarse alignment mark and a fine alignment mark, and the coarse alignment mark and the fine alignment mark feed back a first reflection light signal and a second reflection light signal respectively based on the first light source signal; the automatic focusing module is used for forming a first focusing mark on the surface of the silicon wafer and acquiring a third reflected light signal fed back based on the first focusing mark, and the third reflected light signal is used for performing focal plane compensation on the silicon wafer; the first detection module is used for acquiring first deviation information based on the first reflected light signal so as to perform first compensation on the position of the silicon wafer; and the second detection module is used for obtaining second deviation information based on the second reflected light signal after the first compensation so as to carry out second compensation. According to the scheme, the defocusing condition of the silicon wafer can be judged and compensated in real time, and the alignment efficiency and the overlay precision are improved.

The invention provides an overlay alignment optical measurement system and overlay alignment detection equipment, and belongs to the semiconductor overlay alignment amount detection technology, the overlay alignment optical measurement system comprises an illumination module, an image acquisition module, an automatic focusing module, a coupling light path module and a pre-alignment module; the overlay alignment detection equipment comprises a machine table, a movable carrying table, a measuring frame, a Z-axis driving module and an optical machine module. According to the invention, the pre-alignment light path is integrated on the basis of the self-focusing imaging light path, the overall measurement efficiency is improved, and the space occupation is reduced through the layout that the automatic focusing module is inclined and the light path side is offset; the measuring head is integrally arranged on the Z-axis driving module, so that the overall stability of the equipment is improved; and the two wafer fork grooves with different lengths are formed in the tray body, so that a wafer taking manipulator with fork handles with different lengths can be conveniently and quickly inserted, and the wafer replacement efficiency is improved. The method is convenient to popularize and apply in semiconductor overlay alignment, CD, defect and other nanoscale quantity detection scenes.

The invention provides a projection device and a projection correction method. The projection device comprises a projection module, a zoom projection lens, a sensor, a focal length adjustment module, a zoom ratio adjustment module, a detection module and a control unit. The zoom ratio adjusting module adjusts the position of a lens group in the zoom projection lens so as to adjust the zoom ratio of the projection image generated by the image light beam generated by the projection module projected by the zoom projection lens; the control unit calculates a focal length adjustment parameter by using an automatic focusing conversion function according to a detection value generated by the displacement of the lens group detected by the detection module and the projection distance sensed by the sensor, and controls the focal length adjustment module to adjust the imaging focal length of the zoom projection lens according to the focal length adjustment parameter. According to the projection device and the projection correction method provided by the invention, a good focusing effect can be achieved in a scene matched with any zoom ratio within an effective projection distance.

The invention discloses an automatic focusing defocusing amount processing method, an automatic focusing defocusing amount processing system and a medium. The processing method comprises the following steps: screening a defocusing amount conforming to a stroke range and a defocusing amount change amplitude; removing the defocusing amount of which the variable quantity is greater than the change threshold value, and replacing the defocusing amount with the previous non-removed defocusing amount; the focusing state in the current mode is analyzed, so that weighted average calculation is carried out on the current defocusing amount when the focal plane is locked, and filtering of the current defocusing amount is completed; fitting a mapping relationship between the filtered defocusing amount and time to obtain a predicted defocusing amount at the current moment; the defocusing amount with the deviation value smaller than the deviation threshold value is reserved to complete corresponding filtering, and when the deviation value is larger than the deviation threshold value, the actual defocusing amount at the current moment is replaced with the predicted defocusing amount. The method effectively combines the historical trend to realize the prediction and compensation of the current defocusing amount, guarantees the stable and continuous focusing in a complex environment, and is high in robustness and interference resistance.

The invention relates to the technical field of projection, and discloses a projector asynchronous focusing method and device, equipment and a medium. The method comprises the following steps: controlling a projection lens of a projector to move at a constant speed along an optical axis; in the constant-speed displacement process of the projection lens, an image sampling device is controlled to carry out continuous image sampling on a projection picture of the projection lens, and multiple groups of first sampling images are obtained; performing definition evaluation on each first sampling image to obtain a first definition evaluation value; based on the displacement speed of the projection lens and the first definition evaluation value, predicting the position of the projection lens when the definition of the projection picture reaches a peak value, and obtaining a target focusing position; and controlling the projection lens to move to the target focusing position. According to the embodiment of the invention, the automatic focusing speed can be improved on the basis of keeping the focusing precision.

A method and a system for optimizing auto-focus functionality for capturing a multimedia content are provided. The method includes detecting, by an object detection module, one or more objects in a preview frame of the multimedia content, performing, by a feature extraction module, a plurality of functions for extracting attributes of the detected one or more objects, computing, by a priority assignment module, occupancy factor and popularity factor of each detected object are computed to determine priority score, identifying, by a focus identification module, a suitable focus mode and a focus area mode for each selected object are identified based on extracted attributes. In one embodiment, the selected object includes all the detected objects that have a priority score greater than or equal to a predefined threshold value, and applying, by a frame capture and combining module, the identified focus mode and the focus area mode are applied on each selected object for providing the multimedia content.

The invention provides a laser spot image processing method, an automatic focusing method and a medium. The processing method comprises the following steps: acquiring a plurality of laser spot images corresponding to different laser energy; based on the reflectivity of the surface area of the object to be measured and / or the pixel value of the laser spot image, dividing the laser spot image to obtain first data meeting a first condition and second data not meeting the first condition; based on the first data and the second data, screening a first pixel range and a second pixel range which meet imaging requirements; the imaging requirement is that a light spot exists in a laser spot image corresponding to the first data, and a light spot exists in a laser spot image corresponding to the second data; laser energy ranges corresponding to the first pixel range and the second pixel range are used as effective exposure conditions. Based on the effective exposure condition, the first effective data and the second effective data are determined, and a fusion means is adopted, so that the problem that a light spot image of an area with large reflectivity difference cannot be accurately obtained by the same laser energy is solved.

The application discloses an automatic focusing device, method and equipment for single-pixel microscopic imaging. The device comprises a projection module, a focusing module and a detection module. The projection module is used for generating a first image and projecting the first image to a target surface to obtain a second image. The focusing module is used for zooming the projection module to adjust the definition of the second image. The detection module is used for detecting the light intensity of the second image and outputting a photoelectric response value sequence. The calculation and control module is used for controlling the working states of the projection module, the focusing module and the detection module. The in-focus focal length is calculated according to the photoelectric response value sequence. The application can be used for quickly and conveniently focusing the image projected on a microscopic sample and can be widely applied in the field of single-pixel microscopic imaging.

The utility model provides a dual-linkage focusing mode lens and camera shooting equipment, and relates to the technical field of optical imaging, the dual-linkage focusing mode lens comprises a manual focusing lens group, an automatic focusing lens group, a manual driving assembly, an automatic driving assembly and a position sensing trigger unit, the manual focusing lens group comprises at least one manual lens group, and the automatic focusing lens group comprises at least one automatic lens group. The automatic focusing lens group comprises at least one automatic lens group, and the manual driving assembly is connected with and manually drives the manual focusing lens group; a motor of the automatic driving assembly is in driving connection with the automatic focusing lens group; when the manual focusing lens group moves to a preset position along the optical axis, the position induction triggering unit is triggered to start the motor to drive the automatic focusing lens group to execute automatic focusing, the manual focusing lens group and the automatic focusing lens group are sequentially arranged along the optical axis, relay type optical path design is achieved, the size of the lens can be reduced, and redundant motion of the focusing lens groups can be avoided; the position sensing trigger unit is triggered to quickly switch the focusing mode, the movement of a single focusing lens group can be accurately controlled, and the focusing precision and speed are improved.

The application provides a focusing motor and a camera module. The focusing motor comprises a fixed part, a moving part, a focusing assembly, a magnetic attraction sensing part, a guide part and a position sensor. The fixed part comprises a first support arm and a second support arm connected with each other, and a light passage hole formed between the first support arm and the second support arm. The moving part is arranged in the light passage hole and can move in a preset direction. The magnetic attraction sensing part is arranged in the moving part. The angle between the magnetization direction of the magnetic attraction sensing part and the first direction and the second direction perpendicular to the preset direction is an acute angle. The guide part is arranged on the first support arm and corresponds to the magnetic attraction sensing part. The position sensor is arranged on the second support arm and corresponds to the magnetic attraction sensing part. The position sensor can generate an induction force with the magnetic attraction sensing part, so that the position sensor can sense the moving position of the moving part. The focusing motor can significantly reduce the size of the focusing motor, and can guarantee the guiding stability and the position detection precision required by the automatic focusing function while realizing the miniaturization of the camera module.

The invention relates to the technical field of forensic examination, and discloses a forensic diatom automatic scanning and interpretation system based on optical microscopic imaging and AI, which comprises an automatic scanning imaging optical platform, an embedded high-performance all-in-one computer and an artificial intelligence recognition algorithm module. The all-in-one computer is configured to control the optical platform to execute XY-axis automatic scanning and Z-axis automatic focusing, and the automatic focusing is realized based on a definition evaluation function and a search algorithm to obtain a clear field-of-view image; and the artificial intelligence recognition algorithm module is configured to call a diatom target detection model and a diatom form classification model to carry out automatic detection and morphological classification on diatom targets in the clear view field image, and can also comprise an online learning and image library expansion mechanism. The problems that forensic diatom inspection depends on manpower, efficiency is low, interpretation is subjective, and an automatic system lacks accurate focusing and self-adaptive capacity are solved.

The invention discloses an automatic focusing and detecting device for a camera mainboard, and the device comprises a rack and a feeding mechanism, the feeding mechanism is installed on the rack, the feeding mechanism comprises a conveying belt, a first material moving assembly and a first suction cup, and the first material moving assembly is detachably connected with the first suction cup; the equal division mechanism comprises an equal division disc and a mainboard carrier, the mainboard carrier is fixedly installed on the equal division disc, and the first material moving assembly is used for transferring the camera mainboard to the mainboard carrier; the feeding mechanism is used for transferring the focusing lens to the main board carrier; the detection mechanism comprises a plurality of camera modules, a module frame and a discharging mechanism, the discharging mechanism comprises a second material moving assembly and a second suction cup, the second suction cup is detachably connected with the second material moving assembly, the camera focusing modules are detected through the camera modules, and the camera focusing modules are electrically connected with the controller. When the camera mainboard is attached, detected information can be transmitted to the controller, the controller transmits the detected information to the second material moving assembly, and if the focusing result of the camera mainboard is incomplete, the second material moving assembly can transfer the attached camera mainboard to a recycling to-be-processed position; the accuracy degree of the focusing result of the camera module can be identified, and finished products with low accuracy are eliminated, so that the accuracy of the finished products is improved.

The invention provides a total station automatic focusing and reflector plate identification method and system based on intelligent image.The method relates to the technical field of engineering surveying, and comprises the steps that a stepping motor is controlled to drive a focusing lens barrel to move step by step in the direction of an optical axis, a coaxial camera collects images at all positions and calculates definition evaluation values to complete coarse adjustment and fine adjustment focusing, and the focusing precision is improved; and automatic focus locking is realized. The center coordinates of the reflector plate are determined through image preprocessing and reflector plate area recognition, the horizontal and vertical angle deviation can be calculated, sighting is achieved by driving a horizontal servo motor and a vertical servo motor to rotate automatically, and closed-loop control can be completed through iterative correction. The system is composed of a coaxial camera, a focusing execution mechanism, a master control module, an image processing module, an angle calculation module and a servo driving module, a coaxial optical path structure is adopted to eliminate parallax errors, the system has the high-precision automatic focusing, intelligent recognition and rapid automatic sighting capabilities, and the automation level and the measurement precision of the total station can be remarkably improved.

The utility model discloses an automatic imaging device for detection, which comprises an imaging connecting structure and an imaging camera, the imaging connecting structure comprises a bottom plate, a first mounting seat and a second mounting seat which are sequentially connected from bottom to top, the first mounting seat and the second mounting seat are internally provided with vertically through cavities, the bottom plate is provided with an imaging hole, and the imaging hole is communicated with the first mounting seat and the second mounting seat. A cavity of the first mounting seat is internally provided with a first dichroic mirror and a spectroscope, one side edge of the imaging connecting structure is connected with an imaging light source structure, the other side edge of the imaging connecting structure is connected with an automatic focusing system, and the second mounting seat is internally provided with a first optical filter, a first lens group and a plane mirror which are sequentially arranged from bottom to top. The automatic imaging device has the beneficial effects that the two light sources can be conveniently and quickly switched, different detection requirements can be met, and the application range and the flexibility of the automatic imaging device are improved; each part adopts a modular design, the connection and communication logic is simple and clear, the complexity and the maintenance cost of the imaging device are reduced, and the stability and the reliability are improved.

The invention discloses an imaging lens driving module. The imaging lens driving module comprises a lens unit, a base, a shell, an automatic focusing driving assembly and a flexible element, the lens unit is accommodated in an internal space defined by the base and the housing and includes first and third rails parallel to the optical axis. The base includes second and fourth rails parallel to the optical axis. The first and second tracks receive a first ball. The third and fourth rails receive a second ball. The total number of the first balls and the second balls is at least three. The automatic focusing driving assembly is used for driving the lens unit to move relative to the base. The soft element is arranged between the lens unit and the base and / or the shell so as to reduce impact generated by collision between the lens unit and an adjacent element when the lens unit moves. One surface of each of the first and third tracks and two surfaces of each of the third and fourth tracks respectively have only one contact point with the first sphere or the second sphere. The invention further discloses a camera module with the imaging lens driving module and an electronic device with the camera module.