44results about How to "Realize automatic focus" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.