90 results about "Laser projection" patented technology

1. The name of the design product: red light positioning three-dimensional scanning instrument. 2. The use of the design product: with red light positioning function, used in the fields of industrial detection and automation, laser processing scanning, laser radar and laser projection, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The application discloses an optical engine module and a laser projection device, and belongs to the laser projection field.The optical engine module comprises a light source assembly, a prism assembly, a light valve assembly and a lens assembly, wherein the light valve assembly at least comprises a first light valve and a second light valve, the prism assembly is used for guiding the incident light corresponding to each light valve to the corresponding light valve respectively, and guiding the light beams output by each light valve to the lens assembly, the image light beams output by the first light valve and the image light beams output by the second light valve are dislocated at the irradiation position of the lens assembly, so that the resolution of the image picture projected by the lens assembly can be improved without setting a vibrating mirror, the structural components of the optical engine module are less and the volume of the optical engine module is small, the problem that the components of the optical engine module are more and the volume of the optical engine module is large in the related art can be solved, and the effects of simplifying the structure of the optical engine module and reducing the volume of the optical engine module are achieved.

The disclosure belongs to the field of MicroLED, and discloses a projection proximity mass transfer device. The device includes a support layer, a dynamic release layer and a adhesive foam layer. The support layer is a base layer; the dynamic release layer is arranged on the support layer. Under laser radiation, the dynamic release layer is ablated to generate ablation gas, thereby causing the dynamic release layer to generate blister; the adhesive foam layer is arranged on the dynamic release layer, and the foam layer is in contact with the MicroLED to be transferred. Under the action of thermal stimulation or laser, the foamed particles inside the adhesive foam layer expand, reducing the adhesion of the foam layer. Thereby, blisters with microstructures are formed at the interface between the stamp and the chip, thus realizing peeling of the MicroLED to be transferred.

This invention discloses a beam expander lens for laser scanning projection, relating to the field of laser projection display technology. It includes a first lens group, a second lens group, a third lens group, and a fourth lens group, arranged sequentially along the optical axis. These four lens groups together form the complete lens. The first, second, third, and fourth lens groups are arranged in a positive-negative-negative-negative optical power configuration. Through innovative optical architecture and optical power allocation, a large-angle beam expander function is achieved within a space of less than 35mm in total length, greatly saving internal space. By utilizing the chromatic aberration correction capability of the first lens group and the aberration correction capabilities of the second, third, and fourth lens groups, high-contrast imaging is achieved across the entire field of view and wavelength range, with concentrated dot matrix energy, meeting the requirements of high-resolution projection.

This utility model discloses a 3D scanner with replaceable filters, comprising: an instrument body; a camera unit and a laser projection unit disposed within the instrument body, wherein the camera in the camera unit and the projection surface in the laser projection unit are both disposed on the measurement surface of the instrument body; and a supplementary lighting unit located around the camera and disposed on the measurement surface, wherein the filter unit in the supplementary lighting unit is detachably disposed at the front end of the light source assembly in the supplementary lighting unit. This utility model significantly improves the scanner's adaptability to different material surfaces and scanning quality through the design of replaceable filter units, optimizes image clarity and detail, and allows for flexible adjustment and rapid replacement of filters according to the characteristics of different materials.

This invention proposes a laser-assisted alignment device and method for a drilling machine with a single-line laser. The single-line laser-assisted alignment device includes a base, a magnet, a laser adjustment seat, and a single-line laser emitter. The laser adjustment seat houses the single-line laser emitter, and screws are located around its sides to adjust the emitter's orientation. The base includes a bushing and a branch. The bushing is fitted onto the root flange of the drilling machine's chuck, with the bushing's center hole diameter corresponding to the outer diameter of the root flange. The bushing has a radial branch, one end connected to the bushing and the other end connected to and fixed to the laser adjustment seat. The branch has slots for connecting and fixing the base to the drilling machine. The magnet is inserted into the slots of the branch to magnetically attach the base to the drilling machine. By adjusting the position of the laser projection line of the single-line laser emitter, the laser projection line is projected onto the rear vertical plate through the gap in the laser position adjustment auxiliary template, achieving workpiece alignment.

The application discloses a tunnel blasting laser intelligent lofting device and a lofting method, and belongs to the technical field of tunnel construction. The device comprises a main control unit, a laser projection unit, a distance measuring unit and a posture unit. The distance measuring unit is used for collecting distance data of the device and a tunnel tunnel face in real time, the posture unit is used for collecting the inclination and posture data of the device, the main control unit performs space coordinate calculation according to the distance data and the posture data, and controls the laser projection unit to automatically project a blast hole point and a blasting contour line on the tunnel tunnel face. The application does not need artificial paint point, is not affected by water accumulation, humidity and dust environment, realizes high-precision lofting through distance and posture double correction, has fast lofting speed, can be synchronously operated with a rock drilling jumbo, and is suitable for intelligent construction of full-face blasting of a tunnel.

This application provides a skin marking device, belonging to the field of medical auxiliary tool technology. The marking device includes a spring ruler and a support. The spring ruler is mounted on the support, which is mounted on a positioning integrated plate for marking lines on the side of the chest. An elongated hole is provided on the spring ruler, and a skin marking pen is placed inside the elongated hole and moves along the hole to draw lines. Auxiliary lines are provided on the spring ruler, located at both ends of the elongated hole, and are used to check the laser projection lines. This improves both the accuracy and efficiency of the marking. Furthermore, all marked line segments are upright and of uniform thickness, ultimately improving the precision of lesion treatment for patients.

An automatic laser lofting system based on a mobile robot platform, comprising a mobile platform, a mechanical arm, an end effector, a control box and a three-dimensional laser projection positioning system, wherein the mechanical arm is movably mounted on the mobile platform; the end effector is carried at the end of the mechanical arm; the three-dimensional laser projection positioning system manipulates the end effector to dynamically project lofting points to the construction site to present accurate visible laser points for 2D industrial camera recognition; the control box uniformly coordinates the actions of the mobile platform, the mechanical arm, the end effector and the three-dimensional laser projection positioning system.

A drilling machine line laser-assisted centering apparatus and method. The line laser-assisted centering apparatus comprises a base (2), a magnet (3), a laser adjustment mount (4), a line laser emitter (5), and an auxiliary laser position adjustment template (6); the line laser emitter (5) is configured for projecting a line laser light source, wherein an intersection of linear laser lines serves to determine a center point; the base (2) comprises a shaft sleeve (21) and arms (22); the shaft sleeve (21) is sleeved on a drill chuck base flange mount of a drilling machine (1), one end of each arm (22) is connected to the shaft sleeve (21), and the other end is connected to the laser adjustment mount (4) and secures same; and each arm (22) is provided with a recess (221), wherein the magnet (3) is inserted into the recess (221) of each arm and configured for securing the base (2) on the drilling machine by means of magnetic attachment. The auxiliary laser position adjustment template (6) comprises a template body bottom plate (611), a template body vertical plate (612), a template body bilateral shoulder (613), and a template body bottom positioning peg (614). Adjusting a respective position of a laser projection line of the line laser emitter allows the laser projection line to be projected onto a rear vertical plate (612) by means of a central slit of the auxiliary laser position adjustment template (6), so as to achieve workpiece centering. The drilling machine line laser-assisted alignment apparatus and method use laser line guidance to assist in workpiece centering during clamping processes, thereby improving overall construction efficiency and quality.

This utility model discloses a heat dissipation auxiliary device adapted to a surface-emitting laser projection device, relating to the field of laser equipment heat dissipation technology. The technical solution includes a laser housing, a heat dissipation shell at the bottom of the laser housing, a heat dissipation component inside the heat dissipation shell, and limiting components on both sides of the heat dissipation shell. The heat dissipation component includes multiple retaining frames, with heat-conducting plates inserted inside the retaining frames, and multiple heat-conducting pipes installed on one side of the heat-conducting plates. This utility model employs a combined liquid cooling and air cooling technology. The heat-conducting pipes rapidly dissipate heat from the heat-conducting plates through phase change heat transfer, while the fan component forces airflow to accelerate heat dissipation. The synergistic effect of these two technologies improves heat dissipation efficiency. The heat dissipation component is detachably connected to the heat dissipation shell via retaining frames and retaining shells. The limiting components enable quick assembly and disassembly of the heat dissipation shell and the laser housing. Maintenance does not require destructive disassembly; simply rotating a knob unlocks the limiting components, shortening maintenance time.

This invention discloses a laser and a laser projection device. The laser includes a metal thermally conductive substrate, multiple light-emitting chips, and multiple reflectors. The light-emitting chips are soldered to the substrate via heat sinks, and the reflectors are glued to the substrate. Each reflector faces the reflective surface of a corresponding light-emitting chip, allowing light emitted from that chip to be emitted in a direction away from the substrate. Each light-emitting chip emits light along a fast axis and a slow axis, wherein the fast axis is perpendicular to the substrate, the slow axis is parallel to the substrate, and the divergence angle of the emitted light along the fast axis is greater than that along the slow axis. Furthermore, the reflective surface is concave, and the beam emitted through the concave surface exhibits a greater contraction in the divergence angle along the fast axis than in the slow axis. The laser of this invention is used for efficiently emitting laser beams and is applied to laser projection devices.

The application provides a general transferable physical world optical adversarial attack method, including the following steps: step 1, constructing an agent model and selecting a small sample data set as a training basis; step 2, defining optical adversarial patch parameters and a generation space based on an adaptive graph generation algorithm; step 3, introducing a local and global disturbance repetition mechanism to enhance irrelevant high-frequency features and improve disturbance transferability; step 4, constructing a general patch search framework based on a differential evolution algorithm; step 5, using a density-aware fitness function to comprehensively attack effectiveness and disturbance secrecy, and evaluating candidate patches; and step 6, projecting the adversarial graph to the target object using a laser projection device to realize physical attack. The application is suitable for adversarial testing and security evaluation of image classification, target detection and segmentation and other visual-based deep learning systems in a physical scene, and has high engineering use value due to non-invasive deployment, fast projection and removal.

This invention discloses a laser projection display method and system. The method involves configuring the micromirrors of a phase-modulated light device into a high-low periodic structure. Then, based on optical diffraction characteristics, the actual height of the phase-modulated light device under each stage of driving signals is measured. Next, an ideal height set for the micromirrors is defined, which changes linearly with the progressively increasing driving signals. The actual heights that are within a defined error range from the actual heights are identified. These actual heights are matched with the phase level to establish an approximately linear relationship between the driving signal and the changeable phase level. This allows the driving signal to be sent according to the desired linearized height distribution in subsequent designs, achieving an approximately linear adjustment relationship between the change in the actual micromirror position and the change in the ideal micromirror position, thereby improving the dynamic contrast adjustment effect.

The present invention (also referred to as “method and system for displaying ball placement location in screen golf or hybrid golf game”) is a technology that implements a teeing area and ball location for each hole to enable exercise in conjunction with actual golf and indoor screen golf, including an omitted section from the teeing ground to a point before the landing point of the second or third ball, and obstacles such as the actual green and surrounding bunkers, rough, and hazards in indoor and outdoor hybrid golf. The invention relates to a golf system that displays the landing position of a ball on the teeing ground of an indoor or outdoor practice range using a laser beam (which is also referred to as “a ball placement position at a corresponding location using a laser projection device, video projector, or holographic display device, by converting virtual ball landing point coordinates calculated based on the player’s shot result into actual playing space coordinates) and to the design and method of use thereof. The present invention provides a virtual-reality linked golf interface technology that specifies the position of a player's subsequent shot by synchronizing the results of a virtual golf simulation with the physical coordinates of an actual playing space.

1. The name of the design product: laser level. 2. The use of the design product: for laser projection, measurement calibration. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The application is suitable for the field of industrial automatic welding technology, and provides a welding trajectory planning method and system for multi-robot cooperation based on 3D vision, which comprises the following steps: obtaining historical welding data of a preset number of historical workpieces that have been welded before target batch workpieces in a double-robot handover welding area; extracting laser projection patterns in the handover welding area of the front and rear robots corresponding to each historical workpiece from the historical welding data, respectively, and determining the maximum change area of each laser projection pattern. By introducing the maximum change area of the laser projection pattern and the 3D vision analysis technology, and combining the heat accumulation parameters of the rear robot, an angle correction mechanism based on the deviation trend slope is constructed, and dynamic compensation for the welding deviation evolution trend with time in the double-robot handover welding scene is realized for the first time.

This invention discloses an intelligent decision-making method for tunnel drilling and blasting excavation that integrates multi-source sensing, belonging to the field of intelligent construction technology for tunnel engineering. The method includes five core steps: S1 Multi-source geological information sensing and 3D modeling, generating a real-time 3D geological model by fusing multiple types of sensor data; S2 Dynamic design of drilling and blasting parameters based on feedback, dynamically optimizing drilling and blasting parameters based on geological indicators and historical blasting effects; S3 Dynamic and precise laser projection layout, projecting blast holes and contour information to the tunnel face through multi-source fusion positioning; S4 Autonomous guidance of the rock drilling arm, achieving high-precision drilling using coarse and fine two-stage guidance; S5 Blasting effect feedback and parameter correction, extracting indicators such as over-excavation and under-excavation to form a closed-loop optimization. This invention aims to solve the problems of high reliance on manual labor, poor geological adaptability, weak process coordination, and difficulty in controlling over-excavation and under-excavation in traditional drilling and blasting construction by constructing an integrated system of "sensing-design-layout-execution-feedback".

The application discloses a kind of underwater concrete defect three-dimensional reconstruction and measurement system and method based on multi-line structured light, it is related to computer vision and optical measurement technical field.The application includes: stereo vision acquisition module, for synchronously collecting underwater concrete surface image projected with structured light pattern;Composite laser projection module, for projecting a group of parallel line structured light stripes and a circular mark spot as spatial reference to the surface to be measured;Device packaging shell, provide underwater sealing protection;Data processing module, for performing system calibration, image processing, three-dimensional reconstruction and defect quantification.Through accurate modeling and calibration underwater refraction imaging model, the geometric distortion caused by multi-layer medium interface is corrected;Using the multi-line structured light of active projection creates stable feature on weak texture surface, and the high-precision three-dimensional reconstruction of single-frame image is realized based on model-driven implicit epipolar matching algorithm;Finally, the depth and volume of defect are calculated by processing point cloud data.

In an example method, a wearable computing device obtains obtain sensor data from one or more sensors, and detects a trigger event based on the sensor data. The trigger event includes a user of the wearable computing device moving an open palm of the user’s hand towards the user’s face. In response to detecting the trigger event, the wearable computing device obtains a spoken input from the user using or more microphones, and performs one or more operations in accordance with the spoken input.

Embodiments of the present application provide a 3D camera and a debugging method and device, a storage medium and a program product. An industrial computer acquires a point cloud diagram collected by a laser line scanning structured light camera (3D camera) based on a current laser projection angle and a corresponding depth diagram. In response to a laser debugging operation, the industrial computer determines a target laser projection angle according to a to-be-debugged position marked in the depth diagram and camera calibration parameters, sends control information including the target laser projection angle to the laser line scanning structured light camera to control the laser line scanning structured light camera to project a laser line based on the target laser projection angle, so that the laser line can cover the to-be-debugged position, and the point cloud imaging effect of an area where the to-be-debugged position is located can be accurately improved. The user does not need to manually and repeatedly adjust camera parameters, the efficiency and accuracy of 3D camera debugging can be improved, and thus the point cloud imaging effect is improved.

The application discloses a correction method of a projection image and a laser projection device, and relates to the field of projection display. In the process of projecting a first projection image to a projection screen, the laser projection device acquires a shooting image obtained by shooting the projection screen. The laser projection device corrects the projection position of the projection image to be projected based on the offset parameters determined based on the initial positions of a plurality of correction patterns and the target positions of the plurality of correction patterns in the shooting image, thereby avoiding the problem that the projection image does not match the projection screen and ensuring the display effect of the projection image. Moreover, since the method provided in the application automatically corrects the projection image to be projected in the process of projecting the first projection image to the projection screen, the user does not need to manually perform the correction operation, and the normal playing of the display picture is not interrupted. That is, the method provided in the application realizes user-perception-free correction, and the user experience is good.

The application provides a laser projection device and a projection display method, a phase light modulation device, a light modulation assembly for emitting modulated light obtained after modulation, a laser drive assembly for determining a first display drive signal according to an image signal corresponding to a first region and determining a second display drive signal according to an image signal corresponding to a second region, wherein the image signal corresponding to the first region is determined according to light intensity distribution of the modulated light in the first region and brightness information in a to-be-displayed image corresponding to the first region, the image signal corresponding to the second region is determined according to brightness information of the to-be-displayed image corresponding to the second region, and the first region is a region for generating zero-order diffraction; and the light modulation assembly is used for modulating the modulated light by using the first display drive signal and the second display drive signal to obtain a target light beam, and the target light beam is projected into a display to-be-displayed image by a lens, so that the projection display effect can be improved.

The application provides a curved surface image correction method and device based on multi-modal data fusion, comprising the following steps: S1, projecting a sparse grid laser dot array to a to-be-corrected object, collecting an image of the to-be-corrected object with laser marks, and determining whether it is a high-curvature region according to the interval change of adjacent laser dots; S2, projecting a high-density grid laser dot array to the high-curvature region, collecting the image, obtaining fine depth information of each laser dot to form laser point cloud data; S3, constructing and solving an energy minimization model to generate an inverse distortion mapping field of the corresponding curved surface to a two-dimensional flat plane; and S4, inputting the inverse distortion mapping field to a correction model and outputting a corrected image according to the correction model. The application has the beneficial effects that the laser projection is not affected by the surface texture of the to-be-corrected object and environmental light, the precision and strong robustness are improved, the high-curvature region is pre-screened by using the sparse grid laser, and the working efficiency is improved.

The application discloses an oil saw guide plate flatness and groove wear image measurement method and system, relates to the technical field of machine vision image measurement, and the method obtains guide plate multi-source fusion image data through the cooperative collection of a line laser projection and coaxial light source illumination, calculates the flatness deviation by using three-dimensional point cloud reconstruction and reference plane fitting, adopts sub-pixel edge detection and multi-section statistical measurement to quantize groove wear parameters, fuses the flatness and groove wear indexes to calculate a comprehensive wear index and output a grading maintenance suggestion, and automatically generates a detection report, thereby providing an objective quantitative basis for oil saw guide plate quality detection.

A laser projection device includes a light source, an optical engine, a lens and a main board. The light source includes a housing, an adapter board and at least one laser component. The adapter board includes a board body and a hollowed area, and the board body has a third surface. The laser component includes a mounting substrate, at least one light emitting component and at least one connecting piece. The mounting substrate includes a first surface, a first area and a second area. The first area is spaced apart from the second area, and the first area is in conduction with the second area. The light emitting component is electrically connected with the first area. One end of the connecting piece is in conduction with the second area, and the other end of the connecting piece is in conduction with the adapter board, so as to make the mounting substrate in conduction with the adapter board.

A laser device and a laser projection apparatus are provided. The laser device includes a bottom plate, a frame body, a heat sink and a light-emitting chip. The light-emitting chip is located on a surface of the heat sink away from the bottom plate. The light-emitting chip includes a first electrode, a light-emitting layer and a second electrode that are sequentially stacked in a direction away from the bottom plate. The light-emitting layer includes a plurality of micro-particles being a plurality of protrusions and / or a plurality of depressions, and the plurality of protrusions and / or the plurality of depressions are located on a surface of the light-emitting layer proximate to the bottom plate. The heat sink includes a heat dissipation substrate, a conductive layer and a solder layer sequentially stacked in the direction away from the bottom plate, and the solder layer is configured to solder the light-emitting chip.

The application relates to an optical modulation system and a laser projection device, and relates to the technical field of laser projection. The application can reduce the influence of a zero-order light spot on display effect and avoid wasting light energy. The optical modulation system comprises: a light intensity distribution modulation device, which is used for providing a modulated light beam to a target imaging plane to form a light intensity distribution pattern with a target imaging range at the target imaging plane; and a light homogenizing element, which is arranged in a light path between the light intensity distribution modulation device and the target imaging plane; the light homogenizing element comprises: a light homogenizing area, which is used for homogenizing a light beam part corresponding to the zero-order light spot in the modulated light beam, so that the zero-order light spot is homogenized to the target imaging range at the target imaging plane.