459 results about "Laser pointer" patented technology

Systems and methods for annotating, also known as tagging, visually identifiable objects using natural language (i.e. spoken voice) are provided. More specifically, but not exclusively, this disclosure relates to systems and methods for tagging identified objects related to underground utilities and assets, and communication systems. Once tagged, data representing identified objects can be stored, transmitted, and / or mapped. In an exemplary embodiment, a utility service worker or other personnel may walk or drive around an area of interest using utility locating equipment or systems to collect data. As data is being collected, the user may visually identify utility related or other items using a laser pointer, and then use their voice to tag items of interest. A headset including a microphone may be provided for capturing the user's voice. Hardware and / or software may be provided for processing tagged items, and relating them to a specific location, and / or utility asset.

A real-time offset monitoring method for miniature pipe curtain jacking of auger soil discharge. The real-time offset monitoring method comprises: welding a measurement auxiliary pipe (8) to an outer wall of a pipe curtain steel pipe (1), providing a laser pen (9) inside the front end of the measurement auxiliary pipe (8), and enabling a light beam emitted by the laser pen (9) to be emitted to the rear end of the pipe from the front end of the pipe along the interior of the measurement auxiliary pipe (8); and after the measurement auxiliary pipe (8) is mounted, symmetrically welding a male lock catch (7) and a female lock catch (6) of the pipe curtain steel pipe (1) by taking a line connecting the center of the measurement auxiliary pipe (8) and the center of the pipe curtain steel pipe (1) as an axis, and connecting the male lock catch and the female lock catch with the pipe curtain steel pipe (1) to form a whole; fixedly mounting a measurement plate (10) on a housing of a pipe curtain drilling machine (20), such that a center point of the measurement plate (10) coincides with the light beam of the laser pen (9); and when the pipe curtain steel pipe (1) is jacked, observing changes of the position of the laser beam on the measurement plate (10), so as to know the displacement of a drill bit (5) of the pipe curtain drilling machine (20) from the pipe curtain steel pipe (1) in real time. The monitoring method solves the problem that the miniature pipe jacking of auger soil discharge cannot realize real-time measurement of jacking, and can also realize real-time monitoring for the displacement of a jacked pipe curtain steel pipe (1).

The invention relates to the technical field of roadbed observation, in particular to a roadbed settlement observation device and a use method thereof. The device comprises a mounting rack, a supporting mechanism, an adjusting frame, a mounting shaft, a mounting table and an adjusting mechanism, the top of the mounting rack is fixedly connected with a supporting rod; the top end of the supporting rod is fixedly connected with a supporting frame; the supporting mechanism is arranged below the mounting frame; the adjusting frame is arranged in the supporting frame; the mounting shaft is arranged in the adjusting frame; the bottom of the mounting table is fixedly connected with the mounting shaft; a laser pen is arranged at the top of the mounting table; the number of the adjusting mechanisms is two, one adjusting mechanism is arranged on the supporting frame and used for limiting the supporting frame, and the other adjusting mechanism is arranged on the adjusting frame and used for limiting the mounting shaft. Through cooperative arrangement of the supporting frame, the adjusting frame, the rotating shaft, the mounting shaft, the adjusting ball and the mounting table, rapid adjustment of the position of the laser pen is achieved, operation is convenient, and the subgrade settlement measurement precision is guaranteed.

The invention discloses a method for detecting fluorine ions in a water body based on a smart phone, and belongs to the technical field of fluorine ion detection. According to the portable detection equipment based on the smart phone, laser emitted by the laser pen is divided into two beams through the beam splitter, then a to-be-detected liquid is compared with a sample with a fixed concentration, the smart phone is used for shooting a picture, and then the RGB value of an effective area is identified, so that the G ratio of the to-be-detected liquid to the sample with the fixed concentration is obtained; according to the method, a linear relation between fluorine ions with different concentrations and G ratios is constructed, high-sensitivity detection of F <-> is realized, compared with traditional fluorospectro photometer detection, the sensitivity is higher, the technical problem of test result deviation caused by instability of a rechargeable light source used in the field detection process in the prior art is solved, and the method is suitable for large-scale popularization and application. According to the invention, on-site detection of the water sample to be detected can be realized through the smart phone.

The invention discloses a centering device for pier column reinforcement cage hoisting, and relates to the technical field of pier column reinforcement cage installation. Comprising a positioning piece and a centering piece, the positioning piece is installed at the bottom of a pile foundation pit where a pier column reinforcement cage needs to be placed, and the centering piece is installed on the pier column reinforcement cage. Wherein a laser pen is installed on the positioning piece, the laser pen and the pile foundation pit are coaxially arranged through the positioning piece, a positioning cone is installed on the centering piece, and the pier column reinforcement cage is placed in the pile foundation pit in a hoisting mode. By means of the positioning piece and the centering piece, a constructor can visually judge the centering condition of the pier column reinforcement cage, in the hoisting process, the reinforcement cage can be accurately adjusted to the position coaxial with a pile foundation pit by observing the light spot position in real time, the installation precision of the pier column reinforcement cage is ensured, and the construction efficiency is improved. The problems of uneven structure stress and the like caused by position deviation are effectively avoided, and the construction quality and stability of the pier column are improved.

The utility model discloses an electric laser pet toy, which relates to the technical field of pet toys, and comprises a laser pen, one side of the laser pen is provided with a threaded connection column, the side wall of the threaded connection column is fixedly connected with a USB plug, the USB plug is electrically connected with the laser pen, the side wall of the threaded connection column is in threaded connection with a threaded cylinder, and the threaded cylinder is electrically connected with the laser pen. The end, away from the threaded connecting column, of the laser pen is fixedly connected with a laser diode, and the end, located on the outer side of the laser diode, of the laser pen is fixedly connected with a fixing ring. According to the rotating end cover provided by the utility model, the end cover rotates along the side wall of the fixing ring to drive the connecting sheets and the conversion sheets to rotate, the different conversion sheets are rotated to be aligned with a laser diode, the shape of laser emitted by a laser pen can be changed, portable adjustment is carried out, and after the end cover rotates, the elastic strips can extend into the clamping grooves, so that the laser pen is convenient to adjust. And the end cover is kept stable in the fixing ring.

The utility model discloses an experimental device for measuring laser wavelength by using double-slit interference, which belongs to the technical field of teaching aids and comprises a base, a first horizontal sliding track is arranged on the base, and a gradienter is arranged on one side of the base; the first support is arranged on the base, and the fixing clamp is arranged at the top end of the lifting rod set. The laser pen is fixed through the fixing hoop, and the ray of the laser pen is parallel to the first sliding track; the second support is in sliding connection with the first sliding rail, and a horizontal second sliding rail is arranged on the second support; the fixed support is in sliding connection with the second sliding track, and the double slits are arranged on a ray path of the laser pen; the laser range finder is arranged in the mounting groove, and the ray direction of the laser range finder is the same as that of the laser pen; the screen is arranged on a ray path of the laser pen, and the screen and the laser pen are respectively arranged on two opposite sides of the double slit. The laser pen is adopted as a light source, rays are stable, double-slit movement is simple, and debugging is convenient.

The utility model relates to the technical field of optical demonstration, and specifically discloses a multifunctional optical demonstration box comprising a demonstration box body, the outer wall of which is provided with an observation window; the demonstration mechanism is arranged on the inner wall of the demonstration box body, the demonstration mechanism comprises an isolation plate, a demonstration lens, a drainage pipe and a fixing frame, the isolation plate is fixedly connected to the inner wall of the demonstration box body, and the demonstration lens is fixedly connected to the outer wall of the isolation plate in a penetrating mode. According to the utility model, through the cooperation of the isolation plate, the demonstration lens, the drainage pipe, the fixed frame and the moving assembly, the installation and disassembly of the laser pen can be realized through screwing or loosening the bolts; the four demonstration lenses including the convex lens, the concave lens, the reflective mirror and the triangular prism are arranged in a matched mode to demonstrate optics, the illumination track can be well observed, and therefore the optical demonstration effect can be enhanced.

A measuring device and method for positioning a radiation source for double-wall transmissive radiation inspection comprises an angle ruler, the angle ruler is an angle ruler for measuring from 0 to 90 degrees, the position at a right angle is 0 point, the 0° direction is perpendicular to the surface of the inspected object, the 90° direction is parallel to the surface of the inspected object, and a rotating laser pen is fixed at the 0 point position; by designing an easy-to-carry and easy-to-operate device with the function of accurately measuring the focal length of radiation inspection and the deviation angle of the radiation source (or the deviation distance of the radiation source), it is convenient for radiation inspectors or radiation inspection quality control personnel to accurately measure and locate the focal length of radiation inspection and the deviation angle of the radiation source (or the deviation distance of the radiation source), thereby improving the accuracy of the key parameters of double-wall double-shadow or double-wall single-shadow radiation inspection: focal length and radiation source deviation angle (or radiation source deviation distance), thereby improving the sensitivity of radiation inspection and the defect detection rate.

A method for controlling a laser pointer projection of a pet companion robot device to interact with a pet includes the steps of: determining a focal length 1 of the camera; determining a height difference Δy between the at least one laser pointer steering motors of the laser pointer and the camera; determining a horizontal viewing angle α of the camera, a corresponding horizontal viewing range is (−α / 2, α / 2); determining a vertical viewing angle β of the camera, a corresponding vertical viewing range is (−β / 2, β / 2); determining whether the touch screen of the wireless remote-control device is touched; when the touch screen of the wireless remote-control device is touched, determining the corresponding coordinates (i, j); calculating an angular difference Δθ between the camera and the at least one laser pointer steering motors; and calculating a horizontal steering motor rotation angle θx; calculating a vertical steering motor rotation angle θy.

The device comprises an anchor head main plate, a bolt and an adjusting sleeve, the lower end of the adjusting sleeve is inserted into an annular mortise in the outer side of a web of the anchor head main plate, and the bolt is inserted into a pin shaft hole of the anchor head main plate and a lug plate to fix the anchor head main plate; a checking target ring is arranged on the top face of the adjusting sleeve, a laser pen is inserted into a cylindrical hole of the adjusting sleeve, and laser emitted by the laser pen is emitted from a small hole in the center of the top face. The ear plate checking and measuring device for the double-fork-ear suspender has the advantages that materials are simple, use is convenient and efficient, the ear plate can be quickly and accurately measured and checked, and the measurement precision can reach the millimeter level.

The present invention relates to a non-contact calibration device and method for the workpiece coordinate system of a robotic arm. The calibration method includes the following steps: Install three laser pointers on the robotic arm and make the emitted laser beams intersect at a point to form a laser intersection point; Adjust the attitude of the laser pointers so that the laser intersection point is located below the tool; Install a camera on the robotic arm and set the camera towards the end of the tool and the laser intersection point; Use the laser intersection point to calibrate the calibration coordinate system on the workpiece surface. During the calibration process, use the camera to capture video data of the end of the tool and the laser intersection point and display it; According to the distance between the laser intersection point and the end of the tool, convert the calibration coordinate system into the workpiece coordinate system, thereby completing the non-contact calibration of the workpiece coordinate system. The present invention uses the laser intersection point to replace the end tool of the robotic arm, solving the problem that the tool cannot directly contact the ground or the workpiece. The calibration method is simple to operate and the calibration result has high accuracy.

The utility model discloses a coal mine underground accurate simple height difference measuring instrument, which comprises a laser orientation instrument, a box staff, a circular level and a connecting buckle, the laser orientation instrument is vertically connected to a staff body of the box staff through the connecting buckle, and the connecting buckle can be clamped and fixed at any height position of the box staff. And the connecting buckle is used for fixing the circular level above the clamped laser orientation instrument. The measuring instrument is simple in equipment and easy to carry, does not occupy a large amount of manpower and material resources, improves a traditional measuring mode, meets the construction requirement for measuring result precision, and plays a certain reference and innovation role in the later measuring field.

The invention relates to the technical field of warehouse logistics, and discloses a warehouse laser-guided picking operation method which comprises the following steps: firstly, arranging three-dimensional goods shelves on the ground of a warehouse in a rectangular array manner; then a laser signal receiver with a unique number, a two-dimensional code with a unique number and a confirmation button are fixedly installed in front of each storage unit of the three-dimensional goods shelf, then a laser pen capable of swinging is installed at the top of the warehouse, and then warehouse three-dimensional map information is established in a cloud server; comprising a warehouse ground coordinate system and a three-dimensional shelf coordinate system. By means of the warehouse laser guiding order picking operation method, only the order picker needs to be simply trained how to trigger laser guiding, the lazy order picker can be supervised and urged to move very simply and timely, and the effects that automatic bookkeeping is not prone to errors, and efficiency is high can be achieved.

The utility model discloses a centrifugal near-center motion trail drawing device which comprises an upper-layer acrylic transparent disc, a lower-layer acrylic transparent disc, a motion module, a direct-current gear motor, a motor base and a voltage transformation and speed regulation module. The voltage transformation and speed regulation module is connected with a 220V alternating current power supply; the direct-current gear motor is fixed on the motor base through a screw and is connected in series with the voltage transformation speed regulation module; the top surface of the lower-layer acrylic transparent disc is adhered with optically variable cloth through a double-sided adhesive tape; a hole is drilled in the center of the lower-layer acrylic transparent disc and sleeves a motor shaft of the direct-current gear motor, and the upper-layer acrylic transparent disc is connected with the upper end of the motor shaft through a flange shaft after being drilled; the motion module is placed on the acrylic transparent disc on the upper layer; the motion module comprises a laser pen, a wood block, a switch and a 3.7 V small battery. The teaching aid has various functions, and demonstrates circular motion, centrifugal motion, proximal motion and tracks thereof; the mark remaining time is long, observation by students is facilitated, and the mark does not affect the color changing performance of the optically variable cloth.

The utility model discloses a projection measuring device, which relates to the technical field of anti-glare panel measurement and comprises a support, a measuring plate is fixedly arranged at the bottom of the support, and the measuring plate is electrically connected with a display screen. The device further comprises a measuring mechanism used for assisting in measuring the size of the product, a first mechanism capable of longitudinally adjusting the measuring mechanism and a second mechanism capable of transversely adjusting the measuring mechanism. In the implementation process, when a certain measuring point position of the anti-glare panel needs to be measured, the laser pen can be moved to the same longitudinal section with the measuring point position through the longitudinal driving motor, the laser pen is started, the laser pen is driven by the transverse driving motor to transversely penetrate through the position over the measuring point, and then the measuring point position is measured. The measuring plate is responsible for monitoring the laser receiving area, calculating the shadow size and transmitting information to the display screen, so that the transverse size of the anti-glare panel at the measuring point position is obtained, manual measurement is not needed, and the measuring efficiency, accuracy and reliability are improved.

The utility model relates to the technical field of globes, and particularly discloses a globe capable of accurate positioning, which comprises a sphere, a support, a base, a laser lamp and a lamp strip, the lamp strip is arranged on the inner surface of the sphere, and the lamp strip surrounds different countries and regions on the sphere; the voice recognition module is installed in the base and used for conducting semantic recognition on voice of a user. The loudspeaker is mounted in the base and is used for outputting a corresponding audio band according to the voice of a user; the main board is installed in the base and used for extracting keywords of user voice and displaying corresponding positions in a highlight mode, controlling the ball body to rotate and display the corresponding positions and synchronously controlling the laser pen to irradiate the position, mentioned currently, of the audio segment according to the output audio segment. According to the utility model, the position corresponding to the voice of a user is displayed by rotating the globe, the related position of the introduction can be displayed through real-time irradiation of the laser pen while the introduction audio is output, the position can be accurately displayed, and the interactivity in the use process of the user is improved.

This invention provides a testing device and method for testing the maximum driving speed of a weapon station artillery piece. The testing device includes a testing box and a laser pointer. The laser pointer is coaxially mounted on the muzzle. The testing box contains a power module, a maximum driving speed test board for elevation and azimuth, and a maximum driving speed test board for azimuth. Four photosensitive modules and a stopwatch are arranged on the same panel of the testing box. Two photosensitive modules are symmetrically arranged at the top and bottom and left and right positions of the panel, respectively, to convert the received laser signals into electrical signals and transmit them to the maximum driving speed test board for elevation and azimuth or the maximum driving speed test board for azimuth, thereby controlling the start or end of the stopwatch. Based on the elevation and azimuth angles and the stopwatch display time, the maximum driving speed of the artillery piece for elevation downward and upward, and azimuth left and right is calculated. The device of this invention has high testing efficiency and accurate test results, overcoming the problems of complex and error-prone existing testing processes.

The utility model relates to the technical field of optical measurement, and discloses a laser angle measuring tree height measuring instrument which comprises a scale base, a measuring mechanism is installed on the top of the scale base and used for detection and measurement, and a plurality of telescopic mechanisms are installed on the front side and the rear side of the bottom of the scale base at equal intervals. The telescopic mechanism is used for adjusting the height of the scale base; the measuring mechanism comprises a fixed short piece, the fixed short piece is installed on the top of the scale base, a supporting column is fixedly connected to the middle of the inner wall of the fixed short piece, and an arc-shaped support is fixedly connected to the top end of the supporting column. According to the utility model, the laser pen aims at the top of a tree, and the electronic protractor measures an angle alpha; the measuring mechanism is moved to the left inserting groove, the angle beta is measured after leveling, the distance L between two points of the scale of the base is read, the tree height is calculated through a formula, the instrument is made of a laser pen and an electronic protractor which are common objects, the cost is smaller than 100 yuan, operation is easy and convenient, and the instrument is worthy of popularization.

The invention relates to a front sight laser aiming auxiliary device which is used for guiding a kirschner wire to present a point-shaped perspective shadow on a C-arm screen in an orthopedic operation, and belongs to the technical field of medical instruments. The device aims at solving the problems that in traditional Kirschner wire perspective point forming operation, repeated perspective depends on the experience of an operator, radiation exposure is large, and operation precision is difficult to guarantee. The device mainly comprises a front sight base which can be fixed on the surface of a receiver of the C-arm machine, wherein a ball head base is arranged in the center of the front sight base; and the ball head laser indicator is arranged on the base and is adjustable in laser direction. When in use, the perspective image is adjusted to the central position of the front sight on the screen by moving the metal point on the operating table. Installing a laser lamp, adjusting the laser lamp to irradiate on a metal point on an operating table, and screwing a nut to fix the position of the laser lamp at the moment. Therefore, a visible laser guide line coinciding with the path of the target X-ray beam is established. And an operator only needs to adjust the guide needle along the laser ray and place the guide needle, so that the guide needle can be stably developed in a point shape in a perspective image, and accurate and rapid screw guide needle placement is realized. The device is simple in structure, low in cost, intuitive in operation, capable of remarkably reducing intraoperative radiation and reducing dependence on experience of operators, and suitable for being used in hospitals of all levels to carry out precise orthopedic surgery under perspective guidance.

The utility model relates to the technical field of bone trauma measurement, in particular to a measuring scale for bone trauma, which solves the problems that in the prior art, accurate measurement and positioning can not be realized, a measured value can not be accurately measured and read, and the measurement accuracy is influenced, and comprises a support, an object placing plate, a positioning assembly and a measuring assembly, the positioning assembly and the measuring assembly are movably connected to the support. The measuring assembly comprises two measuring units, and the measuring directions of the two measuring units are perpendicular to each other. The range finder is independently erected outside the first sliding rail through the supporting rod, the visual field of a doctor is not hindered, the position of the laser pen is conveniently positioned, and the laser pen is more convenient to mount and dismount due to the arrangement of the elastic clamping ring; after the laser pen is positioned at any position of the X-ray film through the positioning assembly, the difference of measurement data of different points by the measurement unit is calculated, and a doctor can accurately measure and judge various parameters of a bone trauma and the accurate position of the bone trauma in a human body.

1. Name of the Design Product: Laser Pointer (for Computer Teaching). 2. Use of the Design Product: For computer teaching demonstrations. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective View 1.

The utility model relates to the technical field of instrument detection, in particular to a flame detector capable of displaying the detection range of an instrument, which comprises an instrument body, and a sensor array used for receiving flame signals is arranged in the instrument body. The instrument body is provided with a laser scribing mechanism, and the laser scribing mechanism comprises a turntable positioning seat, a turntable, an angle seat, a first laser pen and a second laser pen; the angle seat is provided with a central hole corresponding to an instrument detection center and a scribing hole corresponding to an instrument detection edge, the first laser pen is arranged in the central hole, and the second laser pen is arranged in the scribing hole; compared with the mode that a flame detecting instrument adopted in the traditional technology can only estimate the detection range during working, laser hinting scribing operation is added, the instrument detection range is clearer and more visible, the operation difficulty of on-site construction personnel is lowered, the on-site operation safety of the construction personnel is greatly improved, and therefore the flame detecting instrument has excellent practicability.

The utility model discloses a multi-angle tightening tool for motor manufacturing, and relates to the technical field of tightening tools, the multi-angle tightening tool comprises a bottom plate and an electric sleeve, a position adjusting assembly is arranged, a first electric telescopic rod is controlled to drive the electric sleeve to move left and right, and a second electric telescopic rod is controlled to drive the electric sleeve to move front and back; the position of the electric sleeve can be conveniently adjusted according to the to-be-tightened part of the motor shell, dust is not prone to being accumulated on the surface of the position adjusting assembly, cleaning is easy, the laser pen is arranged, and the laser pen downwards emits laser and moves along with horizontal movement of the electric sleeve; according to the electric sleeve tightening device, the electric sleeve can be moved to the position over the to-be-tightened part of the motor shell, so that the auxiliary positioning effect is achieved, the overturning assembly is arranged and can drive the motor shell to overturn and limit and fix the motor shell again, the angle of the motor shell is conveniently adjusted, and the physical strength of workers is saved.

1. The name of the design product: Finger Rotating Laser Pointer (Magic Wand). 2. The use of the design product: For laser pointers. 3. The design key points of the design product: Lie in the shape. 4. The picture or photo that best shows the design key points: The three-dimensional view.

The application discloses a laser pointer indicating data marking method, device and equipment and a computer storage medium, and relates to the technical field of display. The method is applied to marking data indicated by a laser pointer on a display device. The display device comprises a light ray sensing device. The method comprises the following steps: positioning a laser point projected on the display device by the laser pointer according to light ray information collected by the light ray sensing device; and marking first display data corresponding to the laser point in the case that the laser point is positioned. The method can enable remote participants to share a presentation position indicated by the laser pointer on the display device, thereby solving the problem of low conference efficiency caused by the fact that remote participants cannot share a current presentation position.

The utility model provides a precise circuit board paster high-speed welding tool, which relates to the technical field of electronic processing, and comprises a welding base, a high-speed welding assembly is arranged on the outer side of the welding base, a longitudinal electric lead screw is arranged on the inner side of a left guide frame, a driven supporting rod is welded on the inner side of a right guide frame, and the driven supporting rod is arranged on the outer side of the welding base. A longitudinal sliding rod is connected between the longitudinal electric lead screw and the driven supporting rod, a transverse support is welded to the lower side of the longitudinal sliding rod, a transverse electric lead screw is installed on the lower side of the transverse support, and a transverse sliding block penetrates through the middle of the transverse electric lead screw. The high-speed welding assembly and the electric control hydraulic rod drive the temperature controller and the welding needle to ascend and descend, so that the welding height can be automatically adjusted through an external computer, accurate temperature control and accurate positioning of a welding point are achieved, high efficiency and quality of the welding process are guaranteed, and the laser pointing device points to the welding point of the welding needle all the time.

The utility model provides a laser pen, and relates to the technical field of laser pens. The laser pen comprises a tube body and a base, the tube body is of a hollow structure, and the base is connected to the first end of the tube body to form a containing cavity; a laser diode for emitting a laser beam is arranged in the accommodating cavity, and the laser diode emits the laser beam from the second end of the tube body; the first end of the pipe body is provided with at least one through groove which is provided with a bent part, and one end of the through groove is communicated with the outside. The side wall of the base is provided with a protruding part corresponding to the through groove, and the protruding part can be clamped in the bent part of the through groove so that the base can be connected with the pipe body. According to the laser pen, through cooperation of the protruding part and the through groove, loosening and falling of the base and the tube body can be avoided, the connection stability of the base and the tube body is improved, and the assembly process of the base and the tube body is simple and convenient.

The utility model relates to an auxiliary calibration device for a laser pen. The auxiliary calibration device comprises a connecting piece, a rotating block and a fastening piece, the connecting piece is located on the lower portion and used for being connected with an empty end pod. Three bolt holes are uniformly distributed in the connecting piece; the rotating block is arranged above the connecting piece, two through holes and a screw hole are formed in the rotating block, the through holes correspond to the bolt holes located in the two sides of the connecting piece, and the size of the through holes is larger than that of the bolt holes, so that the rotating block can rotate by a certain angle relative to the connecting piece in the horizontal position; the fastener and the laser pen are fixed through adhesive glue. Four through holes corresponding to the threaded holes are formed in the fastening piece, bolts with springs are arranged on the fastening piece, and the relative positions of the fastening piece and the rotating block are adjusted in the mode that the bolts penetrate through the through holes and are screwed into the threaded holes. The device is simple and practical in structure, can adjust the pitching and azimuth angles of the laser pen through the adjusting bolt and the rotating block, and is high in applicability.

The invention discloses a non-contact handwriting device based on an ultraviolet specific image sensor and a preparation method, and relates to the technical field of image sensing and human-computer interaction. Comprising a glass substrate 1, a transparent thin film transistor array 2 formed on the substrate, a photosensitive material layer 3 formed on the thin film transistor array, and an ultraviolet curing adhesive packaging layer 4 covering the photosensitive material layer. A light-sensitive material is a Bi2S3 material with a wavelength selective light current memory characteristic, generates long-time light current maintenance based on a photo-thermal electric effect in an ultraviolet band, rapidly attenuates in visible to near-infrared bands, and has ultraviolet input selectivity and ambient light anti-interference capability. According to the system, an ultraviolet laser pen is used as an input tool, handwriting patterns which can be kept for a long time are formed on an image sensor array, and image erasing based on a background normalization mechanism is supported. The image sensor array is composed of synaptic-like devices, has a long-term optical memory characteristic, and realizes integration of perception and storage.