61results about How to "Achieve focus" patented technology

The invention discloses a rapid automatic focusing module and method suitable for a fluorescence microscope. The automatic focusing module comprises a laser, a diaphragm, a collimating lens group, a reflector, a dichroic mirror, an objective lens, a sample to be measured, a telescope lens group, a CCD2 detector, a control system and a displacement platform which are sequentially arranged along a focusing light path, and the sample to be measured, the objective lens, the dichroic mirror, a tube lens and the CCD2 detector which are sequentially arranged along an imaging light path; the collimated laser beam is emitted to the plane where the sample to be detected is located through the objective lens, and then the laser beam is reflected back to the telephoto lens group and converged to the CCD2 detector. According to the offset of the center of the reflected light beam, the relative distance between the objective lens and the to-be-tested sample is moved through a control system, and automatic focusing of a single view field of the to-be-tested sample is achieved; the to-be-measured sample is moved to the focal planes of different object view fields in the X direction and the Y direction and is quickly focused in real time, so that the large-size to-be-measured sample is always kept at the focal plane position, and the image quality and the working efficiency are improved.

The invention discloses a zoom optical system, a lens module and electronic equipment, and belongs to the technical field of electronic equipment. The zoom optical system comprises a reflection assembly, a zoom lens assembly and a focusing lens assembly, the reflection assembly, the zoom lens assembly and the focusing lens assembly are arranged at intervals in the first direction, and at least one of the reflection assembly, the zoom lens assembly and the focusing lens assembly can move in the first direction; wherein the focal power of the reflection assembly and the zoom lens assembly is a positive value, and the focal power of the focusing lens assembly is a negative value.

The invention discloses a multi-beam lens antenna, an adjusting method thereof and an antenna base station, which can focus each feed source independently, so that a plurality of feed sources in the multi-beam lens antenna are focused at the same time to realize a focusing effect. The multi-beam lens antenna comprises a lens unit (40), a feed source system and a position adjusting assembly. The feed source system comprises a first feed source and a second feed source which are connected with each other, and each feed source is used for inputting electromagnetic wave signals towards the lens unit (40) so as to generate electromagnetic wave signals of a plurality of beams. The position adjusting assembly comprises a first adjusting mechanism (44) and a second adjusting mechanism; the first adjusting mechanism (44) is used for adjusting the position of the lens unit (40) so as to adjust the distance between the lens unit (40) and the first feed source and the distance between the lens unit (40) and the second feed source; the second adjusting mechanism is used for adjusting the position of the second feed source so as to adjust the included angle between the first feed source and the second feed source.

The invention relates to a lightweight electrical equipment multi-target detection method and system, and the method comprises the steps: collecting multi-angle images of different types of electrical equipment, obtaining an experiment data set, constructing a Ghostnet lightweight network structure, introducing a CBAM attention mechanism and an SPPFCSPC convolution structure to improve a YOLOv8 model, and obtaining a multi-target detection model based on the improved YOLOv8 model. And training, verifying and evaluating the multi-target detection model based on the improved YOLOv8 model to obtain a multi-target detection optimal model for electrical equipment multi-target detection. According to the method and the system, the model complexity and the calculation amount can be reduced while the detection precision is ensured, and an effective solution is provided for multi-target identification detection of lightweight electrical equipment.

The embodiment of the invention provides observation and aiming equipment. The observation and aiming equipment comprises an eyepiece end and an objective lens end which are connected through a connecting shell, the eyepiece end is provided with an eyepiece assembly, a first control module and a focusing hand wheel. The first control module is located on one side of the eyepiece assembly facing the objective lens end; the focusing hand wheel is connected with the first control module; the objective lens end is provided with a camera core and a lens assembly. The camera core is located on one side of the lens assembly facing the eyepiece end. The focusing hand wheel at the eyepiece end is in transmission connection with the lens assembly at the objective lens end through a transmission mechanism comprising a connecting rod, so that the transmission mechanism is driven by the rotation of the focusing hand wheel to adjust the distance between the lens assembly and the camera core; part of the connecting rod of the transmission mechanism penetrates into the connecting shell from the eyepiece end and extends to the objective lens end to be in transmission connection with the lens assembly. In the embodiment of the invention, the focusing hand wheel is arranged at the eyepiece end of the observing and aiming equipment, and when an operator performs focusing, the operator does not need to stretch out the hand for a long distance, so that the focusing process is more labor-saving and better in comfort.

The invention discloses an unmanned aerial vehicle visual angle target detection method based on improved YOLO11n, and the method comprises the steps: 1, carrying out the preprocessing of an unmanned aerial vehicle aerial image data set, and dividing the preprocessed unmanned aerial vehicle aerial image data set into a training set, a verification set, and a test set; 2, constructing an improved YOLO11n model, replacing a C3k2 module in a backbone network of the original YOLO11n model with a C3PA2 module, replacing a neck network in the original YOLO11n model with an FIFFN frame, performing feature conversion on a feature map by the FIFFN through 1 * 1 convolution and the C3PA2 module, splicing deep feature maps in an up-sampling stage and a down-sampling stage with a shallow feature map from the backbone network, and constructing an improved YOLO11n model; increasing the resolution of the prediction feature map to 160 * 160; 3, firstly setting parameters, then training the improved YOLO11n model by using the training set, and adjusting and optimizing hyper-parameters of the improved YOLO11n model by using the verification set to obtain an optimal improved YOLO11n model; and 4, inputting a to-be-detected unmanned aerial vehicle aerial image into the optimal improved YOLO11n model, and outputting a detection result, thereby improving the precision of unmanned aerial vehicle visual angle target detection.

The embodiment of the invention provides a lens assembly, a camera module and electronic equipment, the lens assembly comprises two lens units, the first lens unit close to the object side is movably arranged so as to realize switching of the lens assembly between a working state and a non-working state, and when the lens assembly is in the working state, the first lens unit is not in contact with the object side. The lens assembly can realize high-quality imaging with a large aperture and a large target surface, and when the lens assembly is switched to a non-working state, the distance between the two lens units can be compressed to reduce the length and the total optical length of the lens assembly, thereby realizing the thinning of the thickness of the lens assembly and the camera module, and improving the imaging quality. In other words, the lens assembly can ensure high imaging quality in a working state and can also be miniaturized in a non-working state. In addition, the two lens units are arranged at a relatively large interval, so that the thinning of the lens assembly and the camera module in a non-working state is more obvious, the ultrathin camera module is obtained, and the thinning requirement of the electronic equipment is better met.

The invention relates to a super-surface-based flat plate type super-integrated miniature spectral imaging system, which comprises a gold reflecting layer and a flat plate substrate reflecting layer integrated with a dispersion super-surface, a first focusing reflection super-surface, a second focusing reflection super-surface and a focusing transmission super-surface, incident light is split by the dispersion metasurface, then is reflected to the gold reflection layer, and then is sequentially focused by the two reflection metasurfaces and the transmission metasurface to be imaged on an image plane. The dispersion metasurface adopts a periodically arranged square nano-column diffraction grating structure and has stronger dispersion capability, and the other three metasurface elements are obtained by adopting phase optimization design, so that the imaging performance is excellent; the four metasurfaces are integrated on the same reflecting layer, system optics is only composed of two flat reflecting layers, wavefront regulation and control are achieved while light in a reflecting cavity is continuously reflected, the metasurface can be manufactured through the single photoetching technology, the structure is simple and compact, machining, assembling and adjusting are easy, and a new product is provided for a high-performance compact imaging spectrometer.

The present invention relates to the technical field of neutron scattering, and in particular to a hyperbolic single crystal graphite analyzer used in a secondary spectrometer of a neutron spectrometer, which improves the energy resolution and detection efficiency of the neutron spectrometer by optimizing the geometric shape of the analyzer; the analyzer comprises a substrate, and both the horizontal (x) and vertical (y) directions of the substrate are designed into a hyperbolic trapezoidal structure according to a fourth-order polynomial, which determines the overall geometric shape of the analyzer; the present invention effectively solves the problems existing in the prior art through an innovative design of a hyperbolic single crystal graphite analyzer, significantly improves the performance of the neutron spectrometer, and has important value for neutron scattering research and applications in related fields.

The embodiment of the invention provides electronic equipment which comprises a battery used for supplying power to the electronic equipment; the camera module comprises a motor and a lens assembly, the motor comprises a magnetic part and a coil, the magnetic part is connected to the lens assembly, and the coil generates electromagnetic induction with the magnetic part in a power-on state and drives the magnetic part to move so as to drive the lens assembly to move; wherein the coil is also used for being electromagnetically coupled with a first external coil to generate induced current; and the first charging circuit comprises two ends which are arranged oppositely, one end of the first charging circuit is connected with the coil, and the other end of the first charging circuit is connected with the battery so as to transmit the induction current to the battery. According to the embodiment of the invention, by multiplexing the coil in the motor, the wireless charging function of the electronic equipment is realized, the internal space of the electronic equipment is saved, and the overall layout and the miniaturization of the electronic equipment are facilitated.

The invention discloses a camera module and electronic equipment, and relates to the technical field of electronic products. The camera module comprises a lens assembly, a supporting seat, an image acquisition assembly, a piezoelectric vibrator and a first circuit board, and the image acquisition assembly and the piezoelectric vibrator are electrically connected with the first circuit board respectively; the lens assembly, the supporting seat and the image acquisition assembly are sequentially stacked, the supporting seat comprises a containing groove, the supporting seat is embedded in the containing groove, a first through hole is formed in the groove bottom of the containing groove, the light emitting surface of the lens assembly and the light incident surface of the image acquisition assembly are opposite to the first through hole, and the lens assembly is in sliding connection with the supporting seat; the lens assembly comprises a bearing part, the first end of the piezoelectric vibrator is fixedly connected with the supporting seat, and the second end of the piezoelectric vibrator abuts against the bearing part; wherein under the condition that the piezoelectric vibrator is in a power-on state, the second end of the piezoelectric vibrator drives the lens assembly to move towards or away from the image acquisition assembly through friction force between the second end of the piezoelectric vibrator and the bearing part.

The application provides a longitudinal-bending coupled vibration ultrasonic scalpel head based on an acoustic black hole, a scalpel and a design method, and belongs to the technical field of medical instruments.The ultrasonic scalpel head comprises, in sequence from the head to the tail, an ultrasonic scalpel head head part, an ultrasonic scalpel head back part, an ultrasonic scalpel head tail part and an ultrasonic scalpel head arc blade part; and the arc structure of the ultrasonic scalpel head arc blade part satisfies a one-dimensional acoustic black hole cross-section height calculation model.The longitudinal-bending coupled vibration mode provides longitudinal shearing force and transverse shearing force for the ultrasonic scalpel head at the same time, the focusing effect of the acoustic black hole structure is utilized to further enhance the mechanical vibration capacity of the ultrasonic scalpel head, and the cutting time of the ultrasonic scalpel head in surgery can be greatly shortened, so that the work efficiency is greatly improved.

The utility model relates to a camera module and an electronic device comprising the camera module, which are used for reducing the manufacturing cost on the basis of improving the imaging quality. The supporting seat is arranged on the photosensitive component; the first lens assembly comprises a first lens base, a first lens and a first driving part, the first lens is installed on the first lens base, the first lens base is in sliding connection with the supporting base in the direction perpendicular to the optical axis direction of the first lens, and the first driving part is arranged on the supporting base and used for driving the first lens base to move in the direction perpendicular to the optical axis direction of the first lens; the second lens assembly comprises a second lens base, a second lens and a second driving part, the second lens base and the first lens base are in sliding connection in the optical axis direction of the first lens, the second lens base is located between the photosensitive assembly and the first lens, the second lens is installed on the second lens base and located in the optical axis direction of the first lens, and the second driving part is arranged on the first lens base; the second lens base is used for driving the second lens base to move along the optical axis of the first lens.

The utility model discloses a guide rail type focusing device, and relates to the technical field of guide rail type focusing. The guide rail type focusing device comprises a transmission gear, a fixing support, an image sensor and a stepping motor. The transmission gear is in sliding connection with the fixing support, the image sensor is arranged on the fixing support, a spring is further arranged between the image sensor and the fixing support, a driving gear is arranged at the output end of the stepping motor, and the driving gear is connected with the transmission gear in a meshed mode. According to the guide rail type focusing device provided by the utility model, the image sensor is arranged on the fixed bracket, and the fixed bracket performs lifting motion so as to achieve the purpose of focusing. In addition, a guide rail mode formed by the transmission gear and the fixing support enables a guide rail inclined groove and an inclined bone position to be in surface-to-surface contact so as to achieve the purposes of stability and zero clearance, assembly tolerance is reduced, focusing precision is improved, high-speed snapshot is achieved, meanwhile, the whole image is clear and balanced, and the problem that one side of the image is clear and the other side of the image is blurred is solved.

The invention provides a time reversal processing method for detecting an underwater moving target, which comprises the following steps of: transmitting a predetermined underwater sound signal s (t) at a transmitting platform for the first time, and receiving a first echo signal x (t) at a receiving platform; self-adaptively estimating H (.) according to the underwater acoustic signal s (t) transmitted for the first time and the echo signal x (t) for the first time, wherein H (.) represents underwater acoustic environment parameter information between an underwater acoustic signal transmitting platform and the underwater moving target, Doppler information of target movement and current channel response information; acquiring a data segment containing channel broadening and target impact response broadening from the first echo signal x (t), and performing time reversal processing to obtain an underwater acoustic signal simulating second active emission; calculating and simulating the underwater acoustic signal actively transmitted for the second time by using H (.), and carrying out convolution to obtain a corresponding second time echo signal; and processing the second echo signal to detect the underwater moving target.

The present invention relates to a multi-axis rotation center coplanar microscope and a debugging method, wherein a multi-axis rotation center coplanar microscope comprises a whole machine support, the whole machine support is equipped with a No. 1 adjustment assembly, the No. 1 adjustment assembly comprises a No. 1 turntable, the No. 1 turntable is equipped with a No. 2 adjustment assembly, the No. 2 adjustment assembly comprises a No. 2 turntable, the No. 2 turntable can move along the first axis direction and the vertical direction, and the No. 2 turntable is equipped with a stage; the whole machine support is also equipped with an optical high-power microscope microscope assembly, the optical high-power microscope microscope assembly comprises an optical high-power microscope microscope assembly, and the optical high-power microscope microscope assembly is located directly above the stage. The technical solution of the present invention can improve the existing optical microscope platform, which has the problem of deflection and defocusing at low magnification, and needs to be refocused after defocusing to find the characteristic field of view, while the high-power magnification microscope has no turntable and cannot be deflected for observation.

The present invention relates to a headlamp for a vehicle, having: a light source unit comprising a plurality of light sources and a lens assembly arranged at a predetermined distance from the light source unit for generating a predetermined light image; a circuit board on which the light source unit is electrically contacted; the holding device is used for holding the lens assembly on a main body fixedly connected with the circuit board, and a distance adjusting device is arranged and is provided with an adjusting element capable of reciprocating in the optical axis direction of the lens assembly, and the adjusting element acts on the light source unit and the circuit board; an actuator which can be operatively connected to the adjusting element in order to move the adjusting element; and a control device comprising control means for controlling the actuator such that the adjusting element moves in the direction of the optical axis with a stroke difference until the currently generated light image coincides with a predetermined light image. The invention further relates to a distance adjustment device and to a method for adjusting a predetermined light image of a headlamp.

The present invention relates to the field of image shooting automation, and discloses a lens fast focusing method, a computing device and a storage medium. The method of the present invention comprises the steps of: in response to receiving a lens focus instruction, moving the lens from the starting point of the focus stroke to the end point, recording the frame count and clarity evaluation value of each frame of multiple frames of images shot by the lens; determining a frame of images with the largest clarity evaluation value and the frame count of the frame of images in the multiple frames of images, and taking the image as the target image; and moving the lens to the first lens position for shooting the target image according to the frame count of the target image. After receiving the lens focus instruction, the present invention can determine the lens position that can shoot an image with the best clarity evaluation value through less instruction interaction and short lens position search, and stop the lens at this position to achieve focusing; focusing is achieved by traversing the focus stroke once, reducing the process of the lens reciprocating to find the best shooting position, and improving the focusing efficiency and shooting speed.

The utility model discloses an internal focusing lens system, which comprises a lens barrel assembly and an optical lens group, and is characterized in that the lens barrel assembly comprises a first lens barrel, a second lens barrel and a third lens barrel which are sequentially arranged from an object side to an image plane along an optical axis; the optical lens group sequentially comprises a first lens group, a second lens group, a third lens group and a fourth lens group from the object side to the image plane along the optical axis, the second lens group is arranged in the second lens barrel, has positive focal power and comprises a second lens with positive focal power, a third lens with negative focal power, a fourth lens with negative focal power, a fifth lens and a sixth lens with positive focal power; the third lens group is arranged in the third lens barrel and comprises a seventh lens with negative focal power; the inner focusing lens system satisfies: 0 lt; (F2 + F3) / F1lt; 0.2, 1.3 < = F2 / L2 < = 1.5, 1.5 lt; f3 / L3 < = 2.2, F1 is the effective focal length of the first lens group, F2 is the effective focal length of the second lens group, F3 is the effective focal length of the third lens group, L2 is the length of the second lens barrel in the direction of the optical axis, and L3 is the length of the third lens barrel in the direction of the optical axis.

The invention discloses a two-dimensional displacement scanning imaging verification system, and relates to the technical field of scanning imaging optical systems. Comprising a metal shielding chamber, an optical bread board is arranged in the metal shielding chamber, a two-groove sliding table is arranged in the optical bread board, an acquisition box is arranged on one side of the two-groove sliding table, a camera assembly is arranged in the acquisition box, and the camera assembly comprises a power panel, a camera, a universal information acquisition board and a detector front placing board. The universal information acquisition board is connected with the detector front placing board through the soft board, the detector installation board is arranged on the detector front placing board, the detector is installed on the detector installation board, the detector is matched with the light source and the target board, the target board is connected with the two-axis displacement table, and the two-axis displacement table is connected with the upper computer through the motor controller. And a data and control interface on the universal information acquisition board is connected with an upper computer. The device is reasonable in structural design, and the acquisition terminal can realize the movement of the imaging target plate by controlling the displacement motor under the condition that the optical device and the light source are not moved, so that scanning imaging is realized.

The present invention relates to a profile determination method, the method comprising: step S1: obtaining a second user profile of each user in a user set; step S2: screening key users based on the second user profile. The present invention can consider the uploaded user profile while obtaining the user profile in real time, and determine the key users in a quantitative manner by uniformly considering the user profiles obtained from various channels, thereby achieving a focus on the key users, thereby greatly improving the user experience.

The present application relates to a focusing method, device, equipment and medium based on a three-dimensional stereo model. The method comprises acquiring a three-dimensional stereo model, calculating a bounding box of the three-dimensional stereo model according to vertex coordinates of the three-dimensional stereo model, respectively calculating the center point coordinates and the circumscribed sphere radius of the bounding box according to the maximum value and minimum value coordinates of the bounding box, acquiring the initial coordinates of a camera, calculating a first vector according to the initial coordinates of the camera and the center point coordinates, normalizing the first vector to obtain a unit vector, calculating a second vector according to a preset magnification control amount, the unit vector and the circumscribed sphere radius, adding the second vector to the center point coordinates to obtain the final coordinates of the camera, moving the camera from the position of the initial coordinates to the position of the final coordinates within a preset time, and setting the focus of the camera to the center point coordinates, thereby solving the problem of poor user experience in the related art.

The utility model relates to the technical field of handheld lighting, in particular to a flashlight adjusting module and a flashlight. Comprising a shell, a PCB and an adjusting assembly, a mounting frame is arranged in the shell, a via hole is formed in the mounting frame, and a window communicated with the mounting frame is formed in the shell; the PCB is located in the shell, a switch and a potentiometer are arranged on the PCB, and the switch is located at the via hole; the adjusting assembly is arranged on the mounting frame, the adjusting assembly is rotationally connected with the shell, the adjusting assembly is partially exposed through the window, the mounting frame is provided with a containing groove communicated with the via hole and the window, the adjusting assembly penetrates through the via hole to be adjacent to the switch, an elastic piece is arranged between the adjusting assembly and the via hole, and a movable gap is formed between the adjusting assembly and the containing groove. And the adjusting assembly is connected with the potentiometer. The problems that in the prior art, a flashlight adjusting module achieves multifunctional control through a plurality of keys, the structure is complex, and the cost is high are solved.

The application discloses a high-efficiency automatic focusing method and system, and relates to the field of automatic focusing. The method is applied to an off-axis automatic focusing device comprising a ranging module and an imaging module, and comprises the following steps: detecting height values of multiple measuring points by using the ranging module, and screening fixed-interval focusing points; based on a first height difference between adjacent focusing points, adjusting the height of an objective lens focal point in the imaging module at a constant speed, so that the height of the objective lens focal point is consistent with the horizontal plane position of the focusing point; when the horizontal plane position of the objective lens focal point coincides with that of any correction point, determining a corresponding blur kernel matrix according to a second height difference between the objective lens focal point and the correction point; and based on the blur kernel matrix, performing deblurring processing on an image generated by an image sensor to obtain a measured object image. Based on the above processing, the image blurring problem caused by poor real-time focusing performance is improved, and the detection rate of the automatic focusing device is improved.

The embodiment of the invention provides a video processing method and device, electronic equipment and a storage medium, relates to the technical field of video processing, and aims to see a leading portrait more easily and clearly. The video processing method comprises the steps that in a first time period, a first video picture is displayed, in the first time period, the distance between a first user and a camera is smaller than the distance between a second user and the camera, the distance between the first user and the camera is smaller than the distance between a third user and the camera, and the first video picture comprises a portrait of the first user; after the first user moves away from the camera, a second video picture is displayed, and the second video picture comprises portraits of a second user and a third user; after the fourth user moves into the capturing range of the camera, a third video picture is displayed, and the third video picture comprises portraits of the first user, the second user, the third user and the fourth user.

The present application discloses a camera and an electronic device. The camera includes a lens, a first bracket, a second bracket and a locking mechanism, wherein the lens is mounted on the first bracket; the first bracket is movably connected to the second bracket; the locking mechanism is respectively connected to the first bracket and the second bracket; the locking mechanism includes an unlocked state and a locked state; in the unlocked state, the first bracket can drive the lens to move relative to the second bracket; in the locked state, the first bracket and the second bracket remain relatively still. The camera and electronic device provided in the embodiments of the present application can selectively fix the lens of the camera so that it cannot move, thereby reducing the collision of the lens with the cover or filter when it is bumped, shaken or during a drop test.

The present invention discloses a anamorphic lens, comprising a cylindrical lens and a spherical lens arranged in sequence from the object side to the image side. A first lens, a second lens and a third lens are arranged in sequence from the object side to the image side, wherein the first lens and the second lens are negative optical power cylindrical lenses, and the third lens is a positive optical power cylindrical lens. By utilizing the optical properties of the cylindrical lens, the incoming horizontal light is "compressed", while the light entering the vertical field of view remains unchanged, and then after comprehensive aberration correction of the light, the horizontal field of view angle is increased by 33%, thereby achieving 1.33X anamorphic shooting. At the same time, since the lens of this solution is smaller in size, lighter in weight, and relatively lower in cost, it can better meet the usage needs of most ordinary users.

The invention discloses a motor, a camera module and electronic equipment, and belongs to the field of motors. The motor comprises a shell, a base, a bearing body, a coil assembly, a magnetic assembly and a conductive sliding rod assembly, the shell is provided with a containing cavity and an opening, the opening communicates with the containing cavity, the base blocks the opening, and the sliding rod assembly, the bearing body, the coil assembly and the magnetic assembly are all located in the containing cavity; the first end of the sliding rod assembly is electrically connected with the base, the bearing body is slidably connected with the sliding rod assembly and used for bearing a lens of the camera module, the coil assembly is fixed to the bearing body, the magnetic assembly is fixed to the cavity wall of the containing cavity, the magnetic assembly is opposite to the coil assembly in position, and the sliding rod assembly is electrically connected with the coil assembly. The sliding rod assembly is used for supplying power to the coil assembly so that the coil assembly can drive the bearing body to slide relative to the sliding rod assembly.

The present invention discloses an individual precise transcranial magnetic stimulation system and optimization method, belonging to the technical field of medical auxiliary equipment. The system includes a main control module, an individual head model optimization module, a magnetic field excitation module, a stimulation coil, a magnetic shielding headgear, a parameter monitoring module, a power module, a communication module and an interaction module. The system does not need to change the conventional magnetic stimulation coil design, but integrates magnetic shielding materials with different conductivity, magnetic permeability, structure and thickness into an easy-to-wear headgear, and at the same time combines individual magnetic resonance data to establish a magnetic stimulation simulation headgear. According to the organizational structure and characteristics of the head model of different individuals, the optimization algorithm is used to select the magnetic shielding headgear with appropriate parameters to achieve the preset focusing and induced electric field strength in the target area, and finally achieve individual precise transcranial magnetic stimulation. The present invention effectively improves the focusing of transcranial magnetic stimulation and enhances the convenience and safety of clinical use.