47 results about "Visible laser light" patented technology

A video laser module includes: a substrate; an optical waveguide layer formed on the substrate; a visible laser light source configured to output visible light; and an electrical signal generation element. The optical waveguide layer includes: a first optical waveguide in which the visible light having a wavelength of 380 nm to 800 nm propagates; and a visible light output port of the first optical waveguide from which the visible light is output. The electrical signal generation element generates an electrical signal for controlling a drive current of the visible laser light source.

1. Name of the designed product: gun lamp (18). 2. Use of the designed product: the designed product is used for pointing by illuminating an object with a collimated visible laser beam. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

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 invention relates to an intelligent detection auxiliary device for a photoelectric sensor and an operation method thereof, and relates to the technical field of detection auxiliary devices, the intelligent detection auxiliary device comprises a detection auxiliary assembly, the detection auxiliary assembly comprises a visible laser emission module which is coaxially arranged with a correlation type photoelectric sensor emitter and is used for emitting a visible calibration light beam; the surface, facing the visible laser emission module, of the calibration identification plate is provided with a calibration reference mark, a heat-sensitive sensor array is embedded in the calibration identification plate, and the heat-sensitive sensor array is used for detecting the light spot position of the visible calibration light beam and generating a position signal; according to the method, a visual laser calibration mode is adopted, the process is visual, manual checking and timely intervention adjustment are facilitated, the deviation point position of the heat-sensitive sensor is utilized for confirmation, then corresponding automatic calibration is carried out, the process is more intelligent, the calibration precision is higher, and meanwhile the complexity and workload of manual calibration work are reduced.

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.

The application relates to an intelligent detection auxiliary device for a photoelectric sensor and an operation method thereof, and relates to the technical field of detection auxiliary devices.The detection auxiliary device comprises a detection auxiliary assembly, the detection auxiliary assembly comprises a visible laser emission module coaxially arranged with a transmitting photoelectric sensor emitter and used for emitting a visible calibration light beam; a calibration mark plate is provided with a calibration reference mark on the surface of the visible laser emission module, and a thermosensitive sensor array is embedded in the calibration mark plate, the thermosensitive sensor array is used for detecting the spot position of the visible calibration light beam and generating a position signal; the application adopts a visible laser calibration mode, the process is intuitive, convenient for manual checking and timely intervention and adjustment, offset point positions of the thermosensitive sensor are confirmed, corresponding automatic calibration is then performed, the process is more intelligent, the calibration precision is higher, and the tediousness and workload of manual calibration work are reduced.

A ranging device, which relates to the field of instrument measurement. The ranging device is integrated with a ranging module (1) and a dual-color laser indication module (2), wherein the ranging module (1) is used for measuring the distance to a target object, the dual-color laser indication module (2) comprises a visible-laser assembly (22) and an infrared-laser assembly (23), the visible-laser assembly (22) is used for emitting a visible laser, the visible laser can be directly observed by human eyes, and an infrared laser emitted by the infrared-laser assembly (23) can be observed by a night-vision device. By means of providing the dual-color laser indication module (2), dual functions, i.e., a visible-laser function and an infrared-laser function, are integrated, such that different lasers can be used on the basis of different scenarios; if there is need to perform direct observation, the visible laser is used to irradiate a target object, and if there is need to improve concealment, the infrared laser is used to irradiate the target object; and when the infrared laser is used to perform indication and the ranging module is used to perform distance measurement at the same time, two emitted laser beams are not directly observed by naked eyes, such that a target distance can be measured without exposing the position of a user, thereby having higher concealment.

The utility model discloses distance measuring equipment, which relates to the field of instrument measurement, integrates a distance measuring module and a double-color laser indicating module, detects the distance between the distance measuring equipment and a target object by using the distance measuring module, and comprises a visible laser component and an infrared laser component, the visible laser component is used for emitting visible laser, and the infrared laser component is used for emitting infrared laser. The visible laser can be directly observed by human eyes, and the infrared laser emitted by the infrared laser assembly can be observed by a night vision device; by arranging the double-color laser indication module, the double functions of visible laser and infrared laser are integrated, different lasers can be used according to different scenes, the visible laser is used for irradiating a target object if direct observation is needed, and the infrared laser is used for irradiating the target object if concealment needs to be improved. When the infrared laser is used for indication and the distance measuring module is used for distance measurement at the same time, the two emitted laser beams cannot be directly observed by naked eyes, the target distance can be measured under the condition that the self position is not exposed, and higher concealment is achieved.

The invention provides a point cloud feature accurate extraction and external parameter calibration method based on error amplification, and the method comprises the steps: calculating the position where a target feature is projected to a background grid through the overlapping position of visible laser passing through a target gap and the edge of the background grid, and carrying out the equal-ratio zooming, thereby reducing the position error of a target in a laser radar coordinate system, and achieving the precise extraction of the target feature. According to the method, accurate target space position information under a laser radar coordinate system is obtained, then reverse compensation is performed on laser pixel coordinates, when errors exceed a set threshold value, the coordinates of the target under the laser radar coordinate system are corrected, so that system errors are reduced, and finally external parameter calibration is performed. The problem of calibration errors caused by large laser radar point cloud data errors during long-distance data acquisition in the calibration process is effectively solved.

The present invention is a defect evaluation method for a semiconductor Si wafer for evaluating a defect shape inside the Si wafer, the defect evaluation method comprising: a first defect detection step for irradiating a surface of an Si wafer with a DUV laser beam to acquire the position coordinates of defects included in the outermost surface; a second defect detection step for irradiating the surface of the Si wafer with a visible-light laser beam to acquire the position coordinates of defects included in a surface layer region including the outermost surface; a defect classification step for comparing the position coordinates of the defects acquired in the first and second defect detection steps, classifying defects detected only in the first defect detection step and defects of the same coordinates among the defects detected in the first and second defect detection steps into exposed defects, and classifying defects detected only in the second defect detection step into non-exposed defects; and a defect observation step for observing the shapes of the defects classified into the non-exposed defects. Accordingly, a method for observing the overall situations of defects present in an Si wafer without destroying the structures of the defects is provided.

This application relates to a rangefinder, aiming device, and shooting aid. The rangefinder includes: a housing for detachably fixing to a scope; and a power supply, control module, laser rangefinder module, visible laser designator, display module, and optical diopter adjustment system housed within the housing. The visible laser designator is coaxial with the laser rangefinder module and is used to indicate the position when the rangefinder module's aiming position coincides with the center of the scope's dividing plate. The image displayed by the display module is adjusted by the optical diopter adjustment system to suit the observation habits of different users and to make the rangefinder data visible within the eyepiece field of view of the scope. The rangefinder provided by this application allows users to use the scope normally according to their original usage habits, and can directly observe the rangefinder data within the original scope's eyepiece field of view without any modification or adjustment to the original scope. It is simple, convenient, and cost-effective.

1. Name of the designed product: Laser pointer (AIML). 2. Use of the designed product: The designed product is mainly used for pointing by illuminating objects with a collimated visible laser beam. 3. Design points of the designed product: In shape. 4. Picture or photo best indicating the design points: Perspective view.

1. Name of the product in this design: Laser pointer (11). 2. Purpose of this design: It is an auxiliary aiming accessory for shooting equipment, which is installed on the equipment and indicates the target position by emitting a visible laser beam to assist aiming. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key features: the front view.

The utility model discloses a multifunctional tactical lamp sight for a pistol. The multifunctional tactical lamp sight comprises a main body, a light emitting assembly, a quick-release guide rail locker and a quick-release tail cover. A battery bin is arranged in the body, and a gear switch is arranged on the bottom face of the body. The light emitting assembly comprises a visible laser aiming module, an invisible laser aiming module, an LED lighting module and an invisible laser lighting module. The locking device is matched with the Picatinny guide rail. The multifunctional laser aiming device integrates the four functions of visible laser aiming, invisible laser aiming, visible light LED illumination and invisible laser illumination, is compact and firm in overall structure and excellent in waterproof performance, and is suitable for various tactical environments and using habits.

The invention discloses a dual-laser-driven ultrafast X-ray transient absorption spectrometer, and relates to the technical field of X-ray material structure characterization. Pumping light is generated through a nanosecond ultraviolet-visible laser to excite the sample; detection is carried out through nanosecond X-ray detection light generated by interaction of a high-energy Nd: YAG near-infrared laser and a krypton gas target; dispersive detection and synchronous capture of the detection light with different wavelengths on the sample are realized through the grating polychromator and the high-speed spectrograph; the time-resolved transient X-ray absorption spectrum characterization of nanosecond-order time resolution is realized through a precise delay control circuit and an optical path design. According to the spectrometer, the measurement of miniaturized, off-line, wide-spectrum, element-resolved and nanosecond time-resolved transient X-ray absorption spectra is innovatively realized according to the excitation state measurement requirement of ultrahigh time resolution.

To provide a vehicle in which, out of ease of detection and ease of visibility, at least ease of detection of a visible laser pattern is improved.SOLUTION: A vehicle according to an embodiment of the present disclosure includes an imaging unit and a laser light source. The imaging unit and the laser light source are installed at a position where a linear laser pattern on a traveling path and a straight line connecting the imaging unit and the laser light source intersect each other, and are installed at the position separated from each other by a gap capable of detecting bending due to an object in the linear laser pattern included in acquired first image data when the object is placed on the traveling path and the first image data is acquired by the imaging unit in a state where the linear laser pattern is generated at a position including the object on the traveling path.SELECTED DRAWING: Figure 3

A driving assistance device according to one embodiment of the present disclosure is provided with a control unit capable of executing the following three processes: (1) acquiring attribute information and position information of each of structures that constitute an intersection ahead of a vehicle, from map data and image data of the intersection ahead of the vehicle; (2) when it is detected, in the map data, the attribute information of each structure, or the image data, that there are a plurality of enterable lanes allowing the vehicle to enter a cross road of the intersection, identifying one lane from among the plurality of enterable lanes on the basis of the attribute information and the position information of the structures as well as a situation or state, included in at least one of the map data and the image data, of the intersection and a cross road that intersects with a travel path of the vehicle at the intersection, and deriving a drawing position on a road surface of a guidance line that guides the vehicle to a specific lane that is the identified lane; and (3) controlling the irradiation of visible laser light on the basis of the drawing position.

The application provides a kind of optical path coupling alignment method of external cavity semiconductor laser, comprising the following steps: adjusting the position and angle of optical fiber, so that the optical fiber is coupled with semiconductor laser chip;Adjust the position and angle of collimating lens, so that the invisible laser emitted by semiconductor laser chip is collimated through collimating lens;Place a visible light laser on one side of the semiconductor laser chip, adjust the position and angle of the visible light laser, so that the visible laser emitted by the visible light laser is parallel to the invisible laser;Adjust the position and angle of the mirror, so that the visible laser emitted by the adjusted visible light laser is reflected along the original optical path after the mirror, keep the angle of the mirror unchanged, adjust the position of the mirror, and translate the mirror to the laser optical axis of the semiconductor laser chip.In the specific operation process of coupling alignment of the application, optical method, mechanical method and space geometry are combined, which effectively reduces the alignment difficulty of optical path coupling and improves the operation efficiency.

1. Name of the designed product: gun lamp (20). 2. Use of the designed product: the designed product is used for pointing by illuminating an object with a collimated visible laser beam. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

The invention discloses a firearm intelligent fire control system and a manufacturing method thereof, and relates to the field of firearms, the firearm intelligent fire control system comprises a lower machine body, a battery bin, an operation panel and an upper machine body, the battery bin is installed at the bottom of the lower machine body, the operation panel is installed on the front face of the lower machine body, an objective lens set is installed at one end of the lower machine body, and an eyepiece set is installed at the other end of the lower machine body; the upper machine body is installed at the top of the lower machine body, and the drive-by-wire switch is fixedly embedded in one end of the lower machine body. According to the invention, all lasers are arranged in a manner that the optical axes are parallel, and a distance measuring laser transmitter, a distance measuring laser receiver, an IR laser and a visible laser are uniformly subjected to collimation optical axis parallel design through a highly compressed divergence angle; an IR laser is designed by compressing a divergence angle into a specific angle, the IR laser and the other four lasers are designed to be parallel to optical axes, and finally the five sets of lasers are fixed in a centralized mode through structural parts to form a complete laser assembly.

This application provides a dynamic moving monitoring tunnel deformation detection device and method based on dual vehicles, belonging to the field of rapid tunnel deformation detection technology. The detection device and method are based on a dual moving platform with a front vehicle and a rear vehicle. The front and rear vehicles rely on several RFID tags for flexible positioning and movement. From the initial position to the next measurement point within the visible distance, the visible laser rangefinder on the rear vehicle illuminates the laser positioning target of the front vehicle moving to the next measurement point and measures the precise distance between the two vehicles. The industrial vision analysis system of the front vehicle acquires the visible laser spot image on the laser positioning target and calculates the offset coordinates of the laser spot center on the laser positioning target. By dynamically measuring the predetermined tunnel range, the cross-sectional coordinates of the tunnel pipe at different time domains at the same location are calculated and compared to obtain the overall related deformation change of the tunnel pipe, thereby improving the efficiency and accuracy of tunnel deformation detection.

An apparatus for non-contact measuring temperature comprises: a stand, for securing a vapor chamber, wherein the vapor chamber comprises a condenser area and an evaporator area, wherein the evaporator area comprises a heating spot; a continuous-wave laser device, facing the stand, for irradiating the heating spot by providing a visible laser beam, wherein the visible laser beam comprises a visible wavelength range; a switch device, controlling an irradiating cycle of the visible laser beam, wherein the irradiating cycle comprises a irradiating time-interval and a non-irradiating time-interval; a first infrared sensor, facing the stand, for collecting a first thermal radiation data of the heating spot in a second infrared wavelength range; a data processing unit, only transferring the first thermal radiation data in the non-irradiating time-interval into a first temperature, wherein the irradiating time-interval is longer than the non-irradiating time-interval.

The invention discloses a high-hardness oxide transparent ceramic and a preparation method thereof, which are used for solving the problem that the existing infrared optical window material cannot have high hardness and high thermal stability at the same time. The chemical formula of the ceramic is Mg < 2x > Li < 4-x > Al < 20-x > O < 32 >, wherein x is more than or equal to 0 and less than 4; the hardness reaches more than 18GPa, far exceeds that of the existing transparent ceramic, and is equivalent to that of sapphire single crystal; the linear transmittance in the range of 300-800nm is higher than 70%, and the transmittance in an atmospheric window of 3-5mu m is higher than 80%. In addition, the ceramic has excellent chemical stability, mechanical property, optical transparency and heat-conducting property, and meets the requirements of high-performance ultraviolet, visible, laser and infrared window materials; the raw materials are easy to obtain, and the preparation method is simple, convenient to operate and suitable for large-scale commercial popularization.

The invention discloses an intermediate infrared laser optical fiber coupling method and system based on visible light reverse guidance. The system comprises an intermediate infrared laser, a light beam guiding module, a light beam collimation evaluation module and a reflection type collimator which are sequentially arranged in the direction of a main light path. Wherein the reflective collimator is connected with a visible laser source through a target optical fiber, and the visible laser source is detachably connected to the far end of the target optical fiber; the intermediate infrared laser and the light beam guiding module form an initial reference light path, and the visible laser source, the reflective collimator, the light beam collimation evaluation module and the light beam guiding module form a space reference light path; carrying out light path coupling on the initial reference light path and the space reference light path until the light beam of the intermediate infrared laser is completely overlapped with the initial reference light path and the space reference light path; according to the invention, a coupling mechanism of firstly establishing an absolute reference and then completing relative restoration is formed, and rapid, accurate and visual alignment and coupling of intermediate infrared laser are realized.

The application provides a kind of invisible light laser radar transmitting and receiving light path fast coaxial calibration device, and relates to the technical field of laser radar.The invisible light laser radar transmitting and receiving light path fast coaxial calibration device includes a receiving telescope, and the receiving telescope is provided with a telescope receiving surface.The application can quickly and real-time locate and display the reference light spot position and exit direction by introducing a visible light calibration light source, which can quickly and conveniently assist in debugging and calibrating the coaxiality of the non-visible light laser radar transmitting and receiving light path, solve the problems of spending a lot of time for blind calibration in the existing non-visible light source laser radar system, and being unable to determine whether the light beam interferes with the light path turning system structure, resulting in light spot loss and misalignment, improve the debugging efficiency of the operator, and ensure the environmental safety of the operator in the case of high-power invisible laser light source, with low cost, simple and flexible calibration method, and can be used as a tool structure to assist in field debugging.

The invention discloses a laser focusing beam testing method based on a fluorescence conversion material and side imaging, and belongs to the technical field of optical detection, and the method comprises the steps: a laser emits an invisible laser beam, and the laser beam is vertically incident to the surface of the fluorescence conversion material through convergence and is propagated in the fluorescence conversion material; a high-speed imaging system is arranged on the side face of the fluorescence conversion material in the direction perpendicular to the main propagation axis of the laser beam; adjusting a high-speed imaging system to scan and image the propagation trajectory of the laser beam in the fluorescence conversion material, synchronously obtaining a fluorescence distribution image, extracting a light intensity profile boundary from the fluorescence distribution image, determining that the light beam is a near-Gaussian light beam or a non-Gaussian light beam, and determining the size of the focused light beam through Gaussian fitting or an edge detection method; fluorescence distribution images are continuously collected, and transient response characteristics of focused beam characteristic parameters are analyzed in real time. High-power-density invisible laser is converted into low-intensity visible light through the fluorescence conversion material, sensor ablation caused by direct irradiation is avoided, and an additional optical attenuation device is not needed.

The application discloses an atomic force microscope-full internal reflection infrared spectrum synchronous acquisition device and method, relates to the field of infrared spectrum technology, and combines the infrared laser and the visible laser through a beam combiner, so that the infrared laser and the visible laser are collinear, and collinear laser is obtained. The incident adjusting assembly makes the collinear laser focus on the sample side through the incident side of the three-prism perpendicularly, and makes the focal point of the collinear laser be located directly below the needle tip, completes the spatial position coupling of the collinear laser and the atomic force microscope probe, and a processor processes the micro-cantilever deflection signal generated by the atomic force microscope and the reflected laser intensity signal generated by the photothermal detector, and simultaneously obtains the atomic force microscope infrared spectrum and the full internal reflection infrared spectrum, so that the atomic force microscope infrared spectrum and the full internal reflection infrared spectrum can be synchronously acquired, and the atomic force microscope infrared spectrum and the full internal reflection infrared spectrum can be collected simultaneously and in situ.

The present invention relates to a terahertz wave reflection optical system module for irradiating a sample with terahertz waves and detecting terahertz waves reflected from the sample, the module comprising: a mirror block having mounted thereon a plurality of parabolic mirrors that constitute a sample irradiation optical system and a sample reflection optical system; an emitter mounting part which is position-adjustably coupled to one side of the rear of the mirror block and has an emitter mounted thereon; a detector mounting part which is position-adjustably coupled to the other side of the rear of the mirror block and has a detector mounted thereon; and a visible laser unit coupled to a side surface of the mirror block.

This invention belongs to the field of ultrasonic testing technology, specifically a defect location optical projection system and method for ultrasonic testing. The system includes an ultrasonic testing instrument, an ultrasonic probe, a data processing unit, and an optical projection device. The ultrasonic testing instrument and ultrasonic probe perform conventional ultrasonic testing functions, detecting defects and calculating their horizontal distance L. The data processing unit receives the horizontal distance L and, based on pre-input or stored probe parameters, calculates accurate projection coordinates using a mapping algorithm. The optical projection device receives instructions from the data processing unit and emits visible laser light. In this invention, the system uses the data processing unit to accurately convert the abstract defect horizontal distance data output by the ultrasonic testing instrument into projected coordinates on the workpiece surface, combined with probe parameters. The optical projection device then projects visible marks in real time, eliminating the need for manual marking and making the defect location intuitively visible. This significantly improves positioning accuracy by eliminating the need for secondary estimation by operators.

A visible laser or laser amplifier is provided with a ceramic gain medium having a uniaxial anisotropic scattering property such that scattering losses for a visible laser beam along one axis are lower than that along perpendicular axes, and that axis is used as the optical path. The ceramic gain medium includes at least a trivalent praseodymium dopant (Pr3+) within a host body based on CaF2, SrF2, BaF2, or a solid solution thereof. Co-dopants can include one or more other trivalent rare earth (RE) elements chosen from Lu3+, Y3+, Gd3+, and La3+. The ceramic gain medium, which is made from wet-chemistry precipitated powders, undergoes uniaxial compression, generally under high heat, as an essential step in its manufacture. In use, a pump source using a laser diode of gallium nitride-based semiconductor can be advantageously paired with the gain medium.