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44results about How to "Realize automatic focus" patented technology
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Automatic focus numerical control laser cutter
InactiveCN101837517AExpand the cutting rangeImprove stability and precisionLaser beam welding apparatusEngineeringWater tanks
The invention discloses an automatic focus numerical control laser cutter, which comprises a framework mechanism (1), a focusing mechanism (2), a lens seat mechanism and guide mechanisms (3) consisting of guide slots (3-1), guide keys (3-2) and locking screws (3-3). The framework mechanism comprises a fixed sleeve (1-1), a connecting seat (1-6) and a nozzle (1-7); the focusing mechanism comprises a worm (1-4), a worm gear (1-5), a bearing (1-2), a nut (1-3) and a trapezoidal thread sleeve (2-1); the lens seat mechanism comprises an upper lens seat (2-2) of a blow hole (2-2.1), a focusing lens (2-3) and an aqueous vapor seat (2-4) which consists of an upper part and a lower part and is provided with a blow hole (2-4.1) and an annular cooling water tank (2-4.2), a lower lens seat (2-5) and a ventilation seat (2-6); and the guide mechanisms are arranged in the aqueous vapor seat and bilaterally and symmetrically distributed by taking an axis of the cutter as a center. The cutter with the structure can realize high-precision, high-efficiency and smooth automatic focusing and has large focusing range and good focusing effects so as to expand the thickness range of plates to be cut.
Owner:LONGYAN LISHANG PRECISION MACHINERY
Auxiliary automatic focusing system and method for optical imaging system
InactiveCN101498831ARealize automatic focusThe test effect is goodMountingsImaging analysisElectric signal
The invention discloses an auxiliary automatic focusing system on an optical imaging system and an automatic focusing method for matching with the optical imaging system to realize automatic focusing. An auxiliary automatic focusing device comprises an image receiving device (5) and at least one image analysis and processing system (6); the image receiving device (5) transforms a received optical image signal of an target (7) into an electrical signal which is then transmitted to the image analysis and processing system (6); the image analysis and processing system (6) calculates the divination value of the captured image and gives out the information of the divination value; an object stage (1) moves up and down driven by hand or by the automatic driving device, and stops moving when the gap between the definition value of the image of the target (7) and the maximum definition value is in a permissible range. The auxiliary automatic focusing system can realize automatic focusing without changing the optical and mechanical mechanism of the optical imaging system, can be set according to the demand for different accuracies of focusing and speeds and can adapt to the demands of different cases.
Owner:冀瑜
Automatic zooming module device
InactiveCN101907761APrecise and accurate focusingRealize automatic focusMountingsFocusing aidsCamera lensLinear motion
The invention relates to an automatic zooming module device, which comprises a shell consisting of an upper cover and a base. A lens extending from the inside of the upper cover and a stepper motor for driving the lens to extend and retract are arranged in the shell. The lens is fixed on a lens mount positioned in the shell. The stepper motor is connected with the lens mount by a transmission assembly. The transmission assembly comprises an output threaded rod which is connected to an output shaft of the stepper motor and rotates synchronously with the output shaft. A nut is sleeved on the output threaded rod. Both a screw thread on the output threaded rod and a screw thread on the nut matched with the output threaded rod are transmission screw threads. The nut is fixedly connected with the lens mount. A guide post which is fixed in the shell and guides the lens mount to take linear motion along the output threaded rod is movably inserted into the lens mount. The guide post is parallel to the output threaded rod. The automatic zooming module device of the invention has the advantages of large range of focusing travel and precise and accurate focusing and positioning, is provided with a zero position detection device, meets requirements of the market and is valuable for popularization and use.
Owner:惠州龙德科技股份有限公司
Automatic upright metallurgical microscope
InactiveCN102253483AReduce cumulative errorRealize automatic focusMicroscopesMicrocontrollerCamera lens
The invention provides an automatic upright metallurgical microscope. The microscope provided by the invention comprises a drawtube, a handel, a workbench, an objective lens, a light source base and a circuit board, wherein a CCD (Charge Coupled Device) interface is arranged on the top of the drawtube; the workbench is a three-axis linked workbench consisting of an X-directional soleplate, a Y-directional soleplate and a Z-directional soleplate which are respectively controlled by an X-directional step motor, a Y-directional step motor, a Z-directional step motor; the objective lens is arranged on an objective lens converter controlled by a W-axial step motor; and a singlechip circuit capable of receiving and processing a PC (personal computer) command and digitally adjusting a light source is arranged in a circuit board in the microscope. The automatic upright metallurgical microscope can be used for performing position control on an objective table and position detection on the objective lens converter through controlling the X, Y and Z directional electric adjustment of the workbench and the electric switching of the lens by a computer, and can meet the requirements of remote network experiments by displaying images collected by a digital CCD on the computer.
Owner:GUILIN UNIV OF ELECTRONIC TECH
Microscopic automatic focusing device and method suitable for space application
InactiveCN1641397AAccurate focusCompact structureMicroscopesImage data processing detailsMicroscopic imageImaging processing
This is a kind of microscopical focus self-adjusting device and method fit for spatial application. The device comprises the microscopical optical system which orderly compose optical couplings with dimensional objects, the system to obtain microscopical images, the image processing system which is used to process the microscopical images to ascertain the clear imaging position, the coupling image processing system, and the micro-displacement controlling system of the microscopical optical system, so as to form a closed loop controlling system and realize microscopical focus self-adjusting. The method is to obtain the microscopical images mainly depending on the micro-displacement controlling system to make the microscopical optical system move the distance with spatial objectives step by step in stated bound. Then calculate every image element in the way of gray difference and work out the gray maximum after doing a group of gray extremum. Ascertain the clear imaging position by the gray maximum and adjust the distance between the microscopical optical system and the spatial objectives by the micro-displacement system to realize focus self-adjusting.
Owner:SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
Adjustable light filter type hyperspectral imager and method based on compressed sensing
ActiveCN110081977ASolve the problem that the space compression ratio is fixed and cannot be adjustedRealize automatic focusSpectrum investigationBeam splitterCompressed sensing
The invention discloses an adjustable light filter type hyperspectral imager and method based on compressed sensing. An imaging device is provided with an electric translation platform. A calculationcontrol module adjusts an object distance and an image distance of the imaging device to realize automatic focusing, which solves a problem that a space compression ratio of a traditional compressed sensing hyperspectral imaging system is fixed and can not be adjusted. A beam splitter is used to divide a scene spectrum into two parts which are collected by two LCTFs with different spectrum segments via two different optical paths, and the problem that the LCTF has a single imaging spectrum segment range in a hyperspectral compressed sensing imaging field is solved. According to an input compression ratio, basic parameters of the optical paths are automatically calculated, and the optical paths are automatically adjusted under the coordination of an electric displacement platform. A compressed sensing theory is combined with the LCTF so as to solve the problem that a spatial resolution is limited by the detector in traditional LCTF hyperspectral imaging.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Self-adaptive near-eye display device
The present invention provides a self-adaptive near-eye display device including an optical system, a shooting unit, a processing unit, and a motion unit. The shooting unit and the motion unit are electrically connected with the processing unit, the optical system includes a lens unit and a display unit, the processing unit commands the motion unit to adjust the position of an optical unit according to the image information shot by the shooting unit, and the motion unit can drive the lens unit to perform longitudinal movement and drives the optical system to perform transverse movement. Compared with the prior art, the use of a near-eye display system is convenient by means of an automatic focusing method. Through the combination of transverse adjustment and longitudinal adjustment, the optical system can be perfectly adapted to the users with different visual conditions, the display is intelligible, and the virtual reality equipment immersion is increased.
Owner:VR TECH (SHENZHEN) LTD
Focal length control method, device, system and mobile device
InactiveCN106385540ARealize automatic focusSolve technical problems with poor shooting effectsTelevision system detailsColor television detailsComputer hardwareControl system
The present invention discloses a focal length control method, a focal length control device and a focal length control system and a mobile device. The method includes the following steps that: the mobile device acquires the volume information of voices emitted by a target object; the mobile device determines the distance of the target object from the mobile device based on the acquired volume information; and the mobile device adjusts the focal length of a photographing device according to the distance of the target object from the mobile device. With the method, device and system of the present invention adopted, the technical problem of a poor photographing effect which is caused by manual adjustment of focal length required by an existing mobile device in photographing can be solved.
Owner:GREE ELECTRIC APPLIANCES INC
Automatic focusing optical detecting system of liquid crystal display panel
InactiveCN104460355ARealize automatic focusSimple structureStatic indicating devicesProgramme control in sequence/logic controllersLiquid-crystal displayEngineering
The invention discloses an automatic focusing optical detecting system of a liquid crystal display panel. The automatic focusing optical detecting system of the liquid crystal display panel is designed to solve the problems that due to the fact that an existing device cannot carry out automatic focusing, detection operation is tedious and detection efficiency is low. The automatic focusing optical detecting system of the liquid crystal display panel comprises a lens, a driving mechanism and a driving controller. The driving mechanism is in transmission connection with the lens. The driving controller generates and outputs driving signals and controls the driving mechanism to drive the lens to carry out focusing. The automatic focusing optical detecting system of the liquid crystal display panel has the advantages of being simple in structure and easily and conveniently realizing automatic focusing, and therefore detection efficiency and detection precision are improved.
Owner:BEIJING C&W ELECTRONICS GRP
Laser cutting system
ActiveCN105710539AEasy to operateGuaranteed laser processing effectLaser beam welding apparatusLight beamLaser cutting
The invention relates to the technical field of laser cutting and discloses a laser cutting system. The laser cutting system comprises a laser light source assembly, an optical assembly, a three-dimensional motion assembly and a computer, wherein the three-dimensional motion assembly comprises an x-y-axis moving platform and a z-axis moving platform, the x-y-axis moving platform drives materials to be machined to move in the x direction and in the y direction, and the z-axis moving platform drives the optical assembly to move in the z direction. The laser light source assembly emits machining laser beams, second laser beams and third laser beams are formed by the machining laser beams under the action of the optical assembly and are focused on the materials to be machined to machine the materials. A first zone without laser beams is formed between the second machining beams and the third machining beams. The computer is connected with the laser light source assembly, the optical assembly, the x-y-axis moving platform and the z-axis moving platform. According to the laser cutting system, images of the surfaces of the materials to be machined can be observed and detected, and focuses of the machining light beams can be automatically adjusted.
Owner:HANS LASER TECH IND GRP CO LTD
Lens module of lens
ActiveCN110174741ARealize automatic focusAchieving Shake CompensationProjector focusing arrangementCamera focusing arrangementCamera lensOptical axis
The invention provides a lens module of a lens; the lens module comprises a shell, a first support, a lens assembly, a focusing driving assembly and an anti-shake driving assembly, wherein the firstsupport is arranged in the shell in a manner of being movable relative to the shell along the optical axis direction of the lens assembly; the lens assembly is arranged in the first support in a manner that the lens assembly is movable relative to the first support in a direction perpendicular to the optical axis direction of the lens assembly and is not movable relative to the first support in adirection of the optical axis direction of the lens assembly; the focusing driving assembly is arranged on the shell and the first support so as to drive the first support to drive the lens assembly to move in the optical axis direction of the lens assembly; and the anti-shake driving assembly is arranged on the lens assembly and the shell so as to drive the lens assembly to move in a direction perpendicular to the optical axis direction of the lens assembly. The focusing driving assembly drives the first support to drive the lens assembly to move in the optical axis direction of the lens assembly so as to realize automatic focusing; and the anti-shake driving assembly drives the lens assembly to move in the direction perpendicular to the optical axis of the lens assembly so as to realizeanti-shake compensation.
Owner:AAC OPTICS SOLUTIONS PTE LTD
Laser shot blast-rolling reinforcement compound device of rotary body and method thereof
The invention provides a laser shot blast-rolling reinforcement compound device of a rotary body and a method thereof. The laser shot blast-rolling reinforcement compound device comprises a laser emitting device, a light path conveying device, a numerical control platform and a rolling head; the laser emitting device is used for generating laser beams; one end of the light path conveying device isused for inputting the laser beams, the other end of the light path conveying device is provided with the rolling head, and the rolling head is in contact with the rotary body and used for carrying out rolling reinforcement on the surface of the rotary body while the laser beams are enabled to penetrate through the rolling head so as to perform laser shot blast on the surface of the rotary body;the rotary body is fixed by the numerical control platform through a first rotating device; and the numerical control platform is used for fixing the light path conveying device through a second rotating device, which is used for enabling the rolling head to rotate around the rotary body. According to the laser shot blast-rolling reinforcement compound device of the rotary body and the method thereof, a pressure spring in the rolling head is adjusted to obtain the required rolling load, a laser is guided through the light path system, automatic focusing of the laser shot blast process is realized, and compound surface reinforcement of a complex curved surface can be accurately realized.
Owner:JIANGSU UNIV
Photoelectric image measuring instrument and measuring method for detecting verticality of large-size workpiece
The invention provides a photoelectric image measuring instrument and a measuring method for detecting the verticality of a large-size workpiece, and solves the problems of complex operation, time andlabor consumption and low measuring precision of a conventional verticality measurement. The photoelectric image measuring instrument comprises a measuring unit and a control unit; the measuring unitcomprises a shell; the front end of the shell is provided with a front window, and the rear end of the shell is provided with a through hole; a light path switching unit, an optical panoramic scanning unit, an internal focusing optical imaging unit and a CCD camera are sequentially arranged in the shell from the front end to the rear end; the light path switching unit is uniformly provided with aplurality of side windows in the circumferential direction corresponding to the shell; the optical panoramic scanning unit is used for assisting the internal focusing optical imaging unit to image afront-view target and a side-view target; the light path switching unit is used for switching the imaging light paths of the front-view target and the side-view target; the CCD camera is positioned onthe focal plane of the internal focusing optical imaging unit and used for performing clear imaging and aiming interpretation on the targets; and the control unit is used for controlling each unit and the CCD camera and calculating the verticality error according to target image data.
Owner:XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
Quick and automatic focusing method of push-broom hyperspectral camera
ActiveCN108401108ARealize automatic focusSmall amount of calculationTelevision system detailsColor television detailsGaussian functionQuality assessment
The invention discloses a quick and automatic focusing method of a push-broom hyperspectral camera. The method comprises the following steps of initializing a lens position; changing a defocus state to acquire hyperspectral data; building a hyperspectral data matrix; computing and storing a hyperspectral quality index value; fitting a Gaussian distribution function between the hyperspectral quality index value and lens expansion and contraction quantity; and estimating the best focusing position. According to the method provided by the invention, only the single column of hyperspectral data isused for performing hyperspectral quality assessment, the computing quantity is small, and the focusing speed is high; quaternion wavelet transform is used for extracting the hyperspectral data multiscale information to build a focusing function, the accuracy is high and the robustness is strong; and the Gaussian function is used for fitting a hyperspectral assessment value, an the automatic focusing of the push-broom camera can be achieved.
Owner:NANJING UNIV OF SCI & TECH +1
Automatic focusing mechanism of thread LENS camera
PendingCN114554057ARealize automatic loading and unloading and automatic focusingIncrease productivityTelevision system detailsColor television detailsMechanical engineeringAutomatic focus
The invention discloses a thread LENS camera automatic focusing mechanism which comprises a workbench, an automatic feeding and discharging mechanism, an automatic focusing mechanism and an automatic carrying mechanism used for transporting a thread LENS camera, and the automatic feeding and discharging mechanism, the automatic focusing mechanism and the automatic carrying mechanism are arranged on the workbench; the automatic feeding and discharging mechanism comprises a clamping mechanism and a control mechanism, and the clamping mechanism is arranged on the control mechanism. The clamping mechanism is provided with two clamping jaws capable of clamping the threaded LENS camera, and the control mechanism can control the clamping mechanism to move left and right, move up and down and horizontally rotate by 90 degrees, so that the threaded LENS camera clamped by the clamping jaws of the clamping mechanism is conveyed back and forth between the automatic carrying mechanism and the automatic focusing mechanism; the automatic focusing mechanism can drive a lens of the threaded LENS camera to perform rotary focusing; the method has the characteristic that the production efficiency can be improved.
Owner:TUNG THIH ELECTRONICS (XIAMEN) CO LTD
Automatic identification device and method of optical fiber fusion splicer
ActiveCN109100830AHigh precisionImprove stabilityCoupling light guidesImaging processingElectric machinery
The invention provides an automatic identification device and method of an optical fiber fusion splicer. The device comprises a core adjusting frame component and a power component, which are installed on a base, and two groups of optical fiber identification components installed on both sides of a central mounting bracket, wherein the central mounting bracket is fixedly connected with the base; the core adjusting frame component is composed of a pair of centrally symmetric elastic supporting sheet and core adjusting frame, which are integrally connected with the base; and the power componentis a lead screw mechanism driven by a motor and a gear mechanism, which is used for pushing the core adjusting frame. The method comprises: identifying and learning various kinds of different opticalfibers, identifying and storing feature values of different optical fibers by using an image processing program, and identifying the optical fibers by matching the feature values. The automatic identification device provided by the invention has a compact structure and a high adjustment speed, realizes automatic focusing and identification of the optical fibers, and completely avoids mis-fusion ofdifferent types of optical fibers.
Owner:南京迪威普光电技术股份有限公司
Multifunctional microscope for physical teaching experiments
InactiveCN106646846AImplement mobile controlRealize remote controlMicroscopesMicrocontrollerCamera control
The invention relates to the technical field of microscopes, and specifically relates to a multifunctional microscope for physical teaching experiments. The multifunctional microscope comprises an electron microscope system, a CPU, a TV camera control system, an external computer control system and a remote mobile control system. The multifunctional microscope provided by the invention is provided with a Bluetooth identification unit that can be connected with a smart phone, the mobile control can be monitored, the Bluetooth identification unit can be wirelessly connected with a CRT through a LAN network to realize remote control, a TV camera is provided to display a video below the microscope on a computer through a video processor, a quick automatic focusing unit of a miniature computer calculates the definition of an image, analyzes the defocus state of the image, and then sends a command and data to a singlechip through an RS-232 interface to control the step pitch and the steering of a z-axis step motor for focusing, automatic focusing can be realized, the multifunctional microscope disclosed by the invention can realize automatic focusing, the video of the microscope can be displayed on the computer to realize remote mobile control, and the creativity is very high.
Owner:陈忠信
Laser marking equipment and automatic focusing method thereof
ActiveCN113492600AImprove work efficiencyHigh precision focusing operationTypewritersEngineeringMechanical engineering
The invention provides laser marking equipment and an automatic focusing method thereof. The high-precision automatic focusing can be realized, and the method comprises the following steps that a positioning distance and a height distance associated with the positioning distance are acquired, and an optical equivalent distance is acquired; according to the height distance and the optical equivalent distance, the focus height of a marking plane corresponding to each positioning point is determined, and the corresponding relation between each focus height and each positioning distance is obtained; a focus height and focusing distance curve is generated according to the corresponding relation between each focus height and each positioning distance; and a focusing instruction containing a target focus height is received, a target focusing distance corresponding to the target focus height is determined from the focus height and focusing distance curve, and after the distance between the focusing lens on the guide rail and the focusing lens is adjusted to be equal to the target focusing distance, it is confirmed that the focusing is completed.
Owner:HANS LASER TECH IND GRP CO LTD
Microscope automatic control platform based on portable bypass structure
InactiveCN101975987BFlexible controlEasy to controlMicroscopesAutomatic controlMechanical engineering
The invention discloses a microscope automatic control platform based on a portable bypass structure. The upper surface of the control platform is connected with a central holding platform for holding a microscope; the control platform is provided with a coarse focusing control mechanism, a fine focusing control mechanism, a follow-up elevating platform and a light source control mechanism respectively, wherein the coarse focusing control mechanism and the fine focusing control mechanism are respectively arranged on the left side and the right side of the central holding platform, and both comprise a controllable telescopic bypass structure which drives a microscope focus adjusting knob to turn; the follow-up elevating platform positioned on one side of the central holding platform is provided with an X-directional control mechanism and a Y-directional control mechanism of a microscope objective table, and both the X-directional control mechanism and the Y-directional control mechanism are combined by a double-telescopic prop chain bypass structure and a rotary bypass structure; and the upper part of the microscope is provided with an image scanning camera, and the image scanning camera is connected with a computer. The invention solves the problems of skidding and desynchronizing caused by directly controlling the knob, and has the advantages of easy control, practicability and convenience, and can be used for other microscopes easily.
Owner:JIANGSU UNIV
Automatic focusing method, device and system for lens
ActiveCN113176696ARealize automatic focusImprove reliabilityTelevision system detailsColor television detailsOphthalmologyEngineering
The invention discloses an automatic focusing method, device and system for a lens, and the method comprises the steps of obtaining a first photosensitive image obtained after the lens shoots a focusing graphic card after determining a first focusing rotation direction of the lens and switching to a first mode, obtaining the definition of the first photosensitive image, and if the definition is smaller than a preset definition threshold value, indicating that the first photosensitive image is clear, an SFR method can be switched to carry out fine adjustment on the lens so as to find the first optimal position of the lens in the first mode, and the automatic focusing of the lens is realized; and if the definition is not smaller than the preset definition threshold value, indicating that the first photosensitive image is still not clear and does not meet the processing requirement of the SFR method, and the lens is rotated by a first stepping angle according to the first focusing rotation direction so as to carry out coarse adjustment on the lens. According to the invention, the lens is roughly adjusted based on the definition, and when the definition requirement is met, the SFR method is switched to carry out fine adjustment on the lens, so that the reliability and efficiency of automatic focusing of the lens are improved.
Owner:GEER TECH CO LTD +1
Image acquisition method and device for observing animal neuron cell activity
ActiveCN111371995BQuality improvementRealize automatic focusTelevision system detailsColor television detailsCell activityImaging quality
The application discloses an image acquisition method and device, electronic equipment and a readable storage medium for observing animal neuron cell activity. The method includes: determining a focus voltage threshold range according to a preset image definition evaluation algorithm; acquiring a current voltage value and adjusting the current voltage value so that the current voltage value is within the focus voltage threshold range to realize automatic focusing Focusing; determine the target focal length according to the current voltage value after auto-focusing and the angle difference variation of the gyroscope; determine the first target voltage value according to the target focal length, so as to adjust the first target voltage value according to the first target voltage value The above current voltage value realizes optical image stabilization. This application solves the technical problems caused by the low quality of the collected images due to the need for manual focus adjustment and the easy shaking of the imaging system in the existing image collection method for observing the neuron cell activity of freely behaving animals, and realizes the improvement of the quality of the collected images technical effect.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Auxiliary automatic focusing system and method for optical imaging system
InactiveCN101498831BRealize automatic focusThe test effect is goodMountingsImaging analysisComputer science
The invention discloses an auxiliary automatic focusing system on an optical imaging system and an automatic focusing method for matching with the optical imaging system to realize automatic focusing. An auxiliary automatic focusing device comprises an image receiving device (5) and at least one image analysis and processing system (6); the image receiving device (5) transforms a received opticalimage signal of an target (7) into an electrical signal which is then transmitted to the image analysis and processing system (6); the image analysis and processing system (6) calculates the divination value of the captured image and gives out the information of the divination value; an object stage (1) moves up and down driven by hand or by the automatic driving device, and stops moving when thegap between the definition value of the image of the target (7) and the maximum definition value is in a permissible range. The auxiliary automatic focusing system can realize automatic focusing without changing the optical and mechanical mechanism of the optical imaging system, can be set according to the demand for different accuracies of focusing and speeds and can adapt to the demands of different cases.
Owner:冀瑜
Automatic focusing device for astronomical photography single reflection lens
InactiveCN106990645ARealize automatic focusHigh degree of automationCamera body detailsFocusing aidsAstrophotographyMotor Drive Unit
The invention discloses an automatic focusing device for an astronomical photography single reflection lens and particularly relates to an astronomical photography single reflection lens adjusting device with a fine tuning control function, and belongs to the technical field of astronomical photography focusing. The device comprises a step hoop frame and a motor drive unit. The device is a modular double-hoop fixing structure based on the Z-axis balance and achieves automatic focusing by controlling rotation of a focusing ring by a hold-in range, so that the automatic degree of the astronomical photography focusing is effectively improved, and the problems of jitter error caused by manual operation of the focusing ring and the short focusing stroke are solved, and finally the effect of the single reflection lens for astronomical photography is improved, which makes the astronomical photography more convenient for the majority of single reflection lens users.
Owner:刘卓楷
A fast automatic focusing method for push-broom hyperspectral camera
ActiveCN108401108BRealize automatic focusSmall amount of calculationTelevision system detailsColor television detailsGaussian functionRemote sensing
The invention discloses a fast automatic focusing method of a push-broom hyperspectral camera. The method comprises the following steps: initializing the lens position; changing the defocus state to obtain spectral data; constructing a spectral data matrix; calculating and storing spectral quality index values; Combine the Gaussian distribution function between the spectral quality index value and the lens expansion and contraction; estimate the best focusing position. The present invention only utilizes a single line of spectral data for spectral quality evaluation, with small amount of calculation and fast focusing speed; adopts quaternion wavelet transform to extract multi-scale information of spectral data to construct focusing function, which has high accuracy and strong robustness; uses Gaussian function to approximate Combined with the spectral evaluation value, it can realize the automatic focusing of the push-broom camera.
Owner:NANJING UNIV OF SCI & TECH +1
Intelligent image processing equipment and image forming system
InactiveCN108881656AIntelligent image processing deviceHigh degree of intelligenceTelevision system detailsColor signal processing circuitsInterface circuitsImage enhancement
The invention relates to an image processing device and an image forming system, and belongs to the technical field of image processing. The image processing device mainly comprises an image acquisition device, a control circuit, a preliminary processor, an image forming system and a power supply and interface circuit, wherein image signal transmission among the image acquisition device, the control circuit, the preliminary processor and the power supply and interface circuit is bidirectional signal transmission; the preliminary processor is used for calculating received image data in order torealize automatic exposure, focusing, white balance, tracking, target detection and image enhancement; the image forming system includes a corresponding image forming system workstation I and a corresponding image forming system workstation II; the corresponding image forming system workstation I is an image forming device for forming an ink image on paper; and the corresponding image forming system workstation II is an image forming device which is connected downstream of the corresponding image forming system workstation I, and used for forming an ink image on paper discharged from the corresponding image forming system workstation I. Through adoption of the intelligent image processing device and the image forming system, the image processing device becomes more intelligent, and the intelligence degree of the image processing device is increased.
Owner:南通使爱智能科技有限公司
Automatic focusing system of projector
PendingCN113589472ARealize automatic focusOvercome operabilityProjectorsMountingsComputer hardwareControl signal
The embodiment of the invention discloses a projector focusing system. The system comprises: a detection module used for detecting projection parameters of a projector; a control module which is connected with the detection module and is used for generating a focusing control signal according to the projection parameters; and a driving module which is connected with the control module and is used for driving the lens to move relative to the lens shell according to the focusing control signal so as to realize focusing. According to the embodiment of the invention, automatic focusing of the projector is realized, the system overcomes the problems that manual focusing operation is inconvenient and time and labor are wasted in the use process of the projector, the influence of subjective differences of users on manual focusing is eliminated, the reliability is higher, the focusing efficiency and stability during use of the projector are improved, and the focusing is faster and more accurate.
Owner:深圳万拓科技创新有限公司
A laser cutting system
ActiveCN105710539BEasy to operateGuaranteed laser processing effectLaser beam welding apparatusLight beamLaser beam machining
Owner:HANS LASER TECH IND GRP CO LTD
A device and method for laser shot peening composite rolling strengthening of a rotary body
Owner:JIANGSU UNIV
Lens driving device, imaging device and mobile terminal
ActiveCN113568131BSimple structureNo magnetic circuit design issuesPrintersProjectorsMechanical engineeringVoice coil
The invention provides a lens driving device, an imaging device and a mobile terminal. The lens driving device includes a housing and a base. The housing cover is arranged on the base and forms an accommodating space with the base. The lens driving device also includes: a lens holder arranged in the accommodating space, and the lens holder is movably arranged inside the accommodating space ; The elastic support component is supported between the lens holder and the base or between the lens holder and the shell, and the elastic support component is energized to deform at least a part of the elastic support component and drive the lens holder to move along the Z-axis direction; Sensing part; detecting part, one of the sensing part and the detecting part is arranged on the lens base, the other of the sensing part and the detecting part is arranged on the base, and the detecting part is arranged corresponding to the sensing part. The invention solves the problem of poor service performance of the voice coil motor of the camera device in the prior art.
Owner:SHANGHAI SMA TECH CO LTD
Multilayer optical disk focused oblique incidence Fuke prism method
InactiveCN100442363CResolve crosstalkRealize automatic focusRecord information storageOptical beam guiding meansOptical axisPrism
An oblique-incidence Foucault prism method for multi-layer optical disc focusing, the focusing device involved is: the laser light emitted by the laser and collimated is focused by the incident lens and enters the optical disc surface in a way that the optical axis is inclined relative to the optical disc surface, After being reflected on the information recording surface of the optical disc, it is focused and imaged by a reflective lens, and then through the Foucault prism set at the imaging point, the defocus signal is formed by receiving the light spot through a two-quadrant photoelectric receiver; the method is as follows: 1) Make the optical disc away from the laser The position of the focal point moves toward the laser focal point to realize coarse focusing; 2) The laser beam forms a light spot on the surface of the two-quadrant photoelectric receiver through the above-mentioned focusing device; 3) Let the defocus signal T be the upper quadrant photocurrent of the two-quadrant photoelectric receiver and the ratio of the difference between the photocurrent of the lower quadrant and the total photocurrent; 4) change the position of the two lenses with T to control the two-dimensional torque device of the position of the two lenses to reduce the amount of defocus; 5) repeat the above 2) to 4) process until the accurate focused illumination of the laser focus point on the information recording surface of the optical disc is realized.
Owner:UNIV OF SHANGHAI FOR SCI & TECH
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