77 results about "Laser application" patented technology

DEPCT68 The welding method disclosed here includes a procedure for applying laser light for... Inspect the workpiece at an angle while varying the amount of light dispersion. The process of determining the correction value for the amount of light scattering based on intensity. Laser backlight for inspection and workpiece welding process. Laser light is applied to the workpiece so that the amount of light scattering is adjusted. The correction value is zero in the welding method as disclosed, laser light for inspection. It is scanned in a direction approaching the laser emission point for time-based monitoring. The amount of light scattering will be zero during the laser application process for... Inspect the workpiece. From the results, determine the welding method, welding system, and possible adjustments. Improvements to the accuracy of laser beam focusing control for welding were provided;

The utility model relates to the technical field of laser application, in particular to a laser frequency stabilization device based on an etalon frequency measurement technology, which comprises a laser emission unit, a frequency detection unit, a frequency stabilization laser output end and a master control adjusting unit, the frequency detection unit comprises an optical splitter, an optical attenuator, a first photoelectric detector, an etalon and a second photoelectric detector. An etalon in the frequency detection unit is used as a frequency reference, an optical attenuator is arranged to reduce temperature rise and improve precision, a first photoelectric detector and a second photoelectric detector are used to provide a frequency measurement error signal and a reference signal, and the master control adjustment unit is used to carry out analysis and calculation according to the error measurement signal and the reference signal. And the laser emitting unit adjusts the laser frequency according to the adjusting signal, so that the frequency stabilization adjustment of the laser is realized.

To determine the quality of connection of an optical connector.SOLUTION: The optical connector connection determining apparatus includes a 1.5 μ F1a for introducing a connection checking laser beam into an input optical fiber mLD14, a connection checking laser beam extraction unit 17 for extracting the connection checking laser beam from the extraction optical fiber F1d, a connection determining unit 18 for determining whether the connection between the first optical connector 12 and the second optical connector 22 is good or bad based on the connection checking laser beam extracted by the connection checking laser beam extraction unit 17, a first connection checking laser beam applying unit F1b - c for receiving the connection checking laser beam from the intermediate optical fiber F1c and applying the connection checking laser beam to another intermediate optical fiber 19a, and second connection checking laser beam applying units F2a, F2c, F2b for receiving the connection checking laser beam from one second optical fiber () and applying the connection checking laser beam to another second optical fiber (). 26b F2d 26c 26a 24a 24c 24b.SELECTED DRAWING: Figure 1

The application discloses a laser cleaning scanning line width self-adaptive adjustment system, method, equipment and medium, relates to the fields of laser application technology and intelligent online monitoring of surface state, and the system comprises a computer control module, a photosensitive monitoring module and a line width regulation module; the photosensitive monitoring module acquires the brightness and color image of the laser interface line width of the area that is not cleaned on the surface of the material irradiated by the laser in real time, the computer control module compares the brightness and color image with the brightness and color standard image in the photosensitive comparison database to obtain a difference line width image, determines the second edge limit information of the area that is not cleaned, controls the line width regulation module to adjust the deflection angle of a galvanometer, and adjusts the length of the laser scanning line width; the laser cleaning scanning optical system performs re-cleaning on the area that is not cleaned according to the laser with the adjusted line width, and completes the cleaning of the overall area on the surface of the material that is cleaned. The application can improve the accuracy and self-adaptive adjustment of laser cleaning.

This invention relates to the field of laser application technology, specifically a precision long-range laser demolition device. It includes a support frame on which a laser device is fixedly mounted. The laser output end of the laser device is a laser emitter head. A fixed shell is integrated into the laser device, and a limiting groove is formed inside the fixed shell. A sliding block is slidably connected within the limiting groove, and a pair of protective mirrors are mounted on the sliding block. The protective mirrors protect the laser emitter head, and a slider is fixedly connected to the sliding block. When using this device in rainy weather, if rainwater or debris adheres to the protective mirrors, the rainwater and debris will cause diffraction and scattering of the laser, resulting in an increased beam divergence angle and affecting the laser power. Wiping the surface of the protective mirrors with a sponge can prevent debris and rainwater from affecting the light transmittance of the protective mirrors.

The invention provides a method for preparing a gradient microstructure on the surface of a current collector, and belongs to the field of laser application. The invention provides a method for preparing a gradient microstructure on the surface of a current collector. The method comprises the following steps: scanning the surface of the current collector by using combined laser; the combined laser comprises nanosecond pulse laser and femtosecond pulse laser; the output power of the nanosecond pulse laser is 50-100 W, and the output power of the femtosecond pulse laser is 15-30 W; the pulse width of the nanosecond pulse laser is 50 to 500 ns, and the repetition frequency of the nanosecond pulse laser is 10 to 50 kHz; the pulse width of the femtosecond pulse laser is 50-500 fs, and the repetition frequency of the femtosecond pulse laser is 10-50 kHz; and the speed of the combined laser during scanning is 1500-3000mm / s. The gradient microstructure meeting the service performance requirement of the current collector is prepared by regulating and controlling the output power, the pulse width, the repetition frequency and the scanning speed of the nanosecond pulse laser and the femtosecond pulse laser.

A laser atherectomy device includes a sensor-equipped light transmission conduit for monitoring physical properties of a laser application site. An integrated control unit utilizing data from the sensors is provided to optimally adjust laser energy parameters and safely and efficiently ablate vascular occlusions.

The present invention relates to a laser surgical system for cutting hard tissue on an object, comprising a handheld laser applicator, a collaborative robot with a robot arm to which the handheld laser applicator is attached, a navigation system with which the instantaneous position of the laser applicator relative to the object can be detected, and a controller for the collaborative robot. The laser applicator has a measuring device with which the cutting depth of a kerf produced by a processing laser beam and the residual thickness of the hard tissue in the kerf can be measured.The control system directs the collaborative robot during the execution of a cut based on data from the navigation system and the measuring device in such a way that it maintains a cutting distance of the laser applicator to the object required for cutting via the robot arm and only allows a feed movement of the laser applicator along a cutting line by the operator when a cut that has just been carried out is completely finished.

The invention belongs to the technical field of ultrafast laser application, and particularly discloses an ultrafast imaging and real-time processing integrated system based on a spatial light modulator. Comprising a signal generator, a femtosecond laser, a first pump light beam splitter, a probe light processing subsystem, a pump light modulation subsystem, a 4F unit, an optical delay translation stage, a fourth reflector, a second band-pass filter, a CCD camera, a coaxial cage type mechanical module, a three-dimensional displacement stage and a computer control subsystem. A spatial light modulator is used for carrying out spatial shaping on femtosecond laser, so that precise shaping machining is completed while the transient process of a material is observed. According to the invention, the problem that a traditional oblique incidence ultrafast pumping detection system and a diversified light field processing function cannot be seamlessly integrated in time and space in the prior art is solved.

The present application relates to a kind of biological medical titanium alloy surface modification method, belong to laser application technical field.The method first utilizes femtosecond laser to process groove-micro ripple composite structure on the surface of clean polished nickel titanium alloy material;Then, rich nanometer sheet is formed on the basis of the structure by alkali heat treatment, and groove-micro ripple-nanometer sheet multistage micro-nano composite structure is obtained;Subsequently, the multistage micro-nano composite structure is placed in the alkaline Tris buffer solution containing hydrochloric acid dopamine to coat polydopamine coating;Finally, the multistage micro-nano composite structure with polydopamine coating is placed in silver nitrate solution to load silver ion, complete titanium alloy surface modification, realize the promotion of titanium alloy bioactivity, bone integration ability and anti-bacterial infection ability.

The application relates to a laser cleaning control system and method, which belongs to the field of laser application control, wherein the laser cleaning control system is adapted to a laser cleaning execution system, and comprises an upper computer, an instruction input component and a core circuit; the upper computer is used for generating a fixed instruction based on fixed parameters and sending the fixed instruction to the core circuit; the instruction input component is used for generating a dynamic instruction based on dynamic parameters and sending the dynamic instruction to the core circuit; and the core circuit is used for receiving the fixed instruction and the dynamic instruction, and sending the fixed instruction and the dynamic instruction to the laser cleaning execution system to complete laser cleaning work. The application combines two control modes, simultaneously supports automatic laser cleaning and handheld laser cleaning, can adapt to more working conditions, and is simple to operate and high in convenience.

The application discloses a kind of processing methods of multi-focal microlens array, belong to laser application technical field.The purpose of the present application is to solve the problem of traditional plane microlens array only single focal length, low processing efficiency and great processing difficulty;The method is obtained by spatial shaping to ultrafast laser in the quartz inside different focal depth multi-focal array, realize different depth in quartz glass inside ablation.After being ablated quartz glass is etched by hydrofluoric acid solution, utilize the characteristics of ablation point depth in quartz, prepare the microlens array of different focal length on quartz surface.The advantage of the method is high processing efficiency, structure morphology controllable, high processing quality, and the ratio of maximum focal length and minimum focal length of sub-lens can satisfy the demand of microlens array in different application occasions.

The invention relates to the technical field of laser processing and numerical control, and discloses an intelligent control method and device applied to galvanometer laser, and the method comprises the steps: carrying out calibration operation on a target processing object, obtaining a target calibration result corresponding to the target processing object, and determining an error parameter corresponding to the target processing object through a target driver; determining a measurement parameter corresponding to the target processing object, and generating a compensation parameter corresponding to the target processing object based on the measurement parameter and the error parameter; based on the compensation parameters, cooperative control parameters corresponding to the target machining equipment are generated, and the cooperative control parameters are used for controlling a galvanometer laser emitting assembly, a Y-axis driving assembly and a roller motor assembly corresponding to the target machining equipment to achieve cooperative operation. Therefore, the processing efficiency in the galvanometer laser application process can be improved, and the control intelligence and the control efficiency can be improved.

The invention discloses a laser shaping design method for a single-lens type integral lens, and belongs to the technical field of laser shaping. The system is composed of a single reflection type integral mirror curved surface, the curved surface is formed by horizontally stretching a specially-designed mirror surface bus, and a point Gaussian light source can be directly shaped into two special light spots: one is a fan-shaped light spot with strong energy in the middle and weak energy on two sides; and the intensity of the two sides of the rectangular M-shaped light spot can be dynamically adjusted along with the distance between the light source and the mirror surface. Compared with a traditional integral mirror scheme, a collimating mirror is omitted, the system structure is remarkably simplified, the stability is improved, and the optical loss is reduced; meanwhile, due to the characteristic that the light spot energy distribution is adjustable, the application range of the method in laser application is effectively expanded.

This utility model discloses a large-spot laser application device, including a device box, and an angle adjustment plate, a laser light source, and a projection plate disposed inside the device box. The two angle adjustment plates are respectively disposed on both sides above the projection plate, and a laser light source is installed on each of the two angle adjustment plates. The irradiation direction of the laser light source is aligned with the projection plate, and the laser light source and the angle adjustment plate are connected to form an adjustable irradiation angle structure. This utility model uses a laser light source to replace the traditional LED light source, halogen light source, and xenon lamp light source, which not only extends the service life of the light source, but also makes the light source smaller and more conducive to the integration of the entire structure. It can be directly applied to the excitation of light sources in CCD camera multicolor fluorescence chemiluminescence gel imaging systems and animal and plant live imaging systems without replacing the light source.

The utility model discloses a surface heating laser with an air-cooled structure, belonging to the field of laser applications. It includes an outer frame, a substrate is installed at the bottom of the outer frame, a laser module is installed on the top of the substrate, a heat dissipation seat is installed at the bottom of the substrate, a fan is installed at the bottom of the heat dissipation seat, ventilation holes are provided at the bottom of the heat dissipation seat, a spiral channel is provided inside the heat dissipation seat, and two rows of heat dissipation holes are provided on the heat dissipation seat. In the utility model, a spiral channel is provided inside the heat dissipation seat, and the spiral channel can guide the flowing air so that the air can move outward along the circumferential direction. Two rows of heat dissipation holes are provided on the heat dissipation seat, and the heat dissipation holes can discharge the internal air and take away the heat, thereby better protecting the laser module and effectively improving the service life of the laser module.

1. The name of the design product: speckle projector. 2. The use of the design product: for projecting speckle dot array laser, applied to 3D scanner. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The application belongs to the technical field of laser application equipment in thermal parameters, and provides a narrow space laser heating and temperature control device and a control method thereof, which can perform high-temperature heating on the material surface inside the narrow space of a missile such as an electric antenna cover, a fairing or an instrument cabin, can complete multiple parameter test tasks in cooperation with other thermal and optical test devices, and has an excellent application prospect. By adopting a non-confocal multi-fiber laser heating technology and combining a miniaturized and integrated water-cooled sleeve pipe circular collimating mirror design, a technical problem of uniformly and efficiently heating the material surface inside the narrow space such as an antenna cover, a fairing or an instrument cabin is successfully solved.

The utility model discloses a multi-sense full-color laser optical network effect system, which belongs to the technical field of semiconductor laser application, and comprises a left side wall body and a right side wall body which are symmetrically arranged, and one side of the left side wall body close to the right side wall body is fixedly connected with a laser light source system. The side, close to the left side wall body, of the right side wall body is fixedly connected with a laser reflecting mirror set, the side, close to the laser light source system, of the left side wall body is fixedly connected with a radiator, and a sensing mechanism is arranged between the left side wall body and the right side wall body. The system solves the problems that an existing laser light network effect system cannot link various senses of audiences, and a plurality of line laser lamps are adopted to emit light at the same time to form a light network, so that equipment operation is inconvenient, cost is high, and light shadow and sense effects are poor.

This invention provides a cigarette lighting device that achieves stable laser output, relating to the field of semiconductor laser application technology. It includes a laser, a lithium battery, a boost regulator circuit, a constant current drive circuit, a timing control circuit, a first switch, and a second switch. The input terminal of the boost regulator circuit is connected to the lithium battery, and its output terminal is connected to the input terminal of the constant current drive circuit. The output terminal of the constant current drive circuit is connected to the laser. The output terminal of the timing control circuit is connected to the ground terminal of the constant current drive circuit. The first switch is located between the enable pin of the boost regulator circuit and the power supply, used to control the opening and closing of the boost regulator circuit. The second switch is connected to the trigger terminal of the timing control circuit, used to trigger the timing control circuit to output a signal. The cigarette lighting device provided by this invention can ignite tobacco within 2 seconds, with a power density approaching 1W / mm², far exceeding traditional laser ignition solutions.

The utility model discloses a kind of laser module of emission irregular starry sky effect, belong to semiconductor laser application technical field, including laser window mirror, light-reflecting concave mirror, light-reflecting bowl, multi-mirror, light source driving board, laser light source module, power module, 512 public seat female seat, 512 subboard module, waterproof rubber pad, pressboard, waterproof joint, load lifting eye, mounting bottom plate, heat dissipation module, rear panel, front panel, product nameplate slot, boom connecting block, boom, shock pad foot and starry sky lamp cylinder, the light-reflecting concave mirror has light-reflecting concave, the light-reflecting bowl is spherical crown, and several plane mirrors are equipped in its light-reflecting concave, the light-reflecting bowl is parallel with multi-mirror and is obliquely arranged in the front of laser light source module, the utility model has the technical effect that irregular and dynamic change starry sky light spot can be generated, light utilization is high, structure is stable, installation is flexible and has good waterproof heat dissipation performance.

The invention provides a femtosecond oscillator and a femtosecond laser source for two-photon printing, and relates to the technical field of laser application, the femtosecond oscillator can directly emit high-energy short-pulse femtosecond laser with the wave band of 700 nm to 800 nm or the wave band of 500 nm to 560 nm without pulse width broadening, multi-stage amplification and frequency doubling systems, and the femtosecond laser source can be applied to two-photon printing. And the structural complexity of the femtosecond laser source for two-photon printing is greatly simplified.

The present application relates to the technical fields of mining engineering and laser application, and particularly relates to a coal mine high-energy laser cutting and thermal shock synergistic pressure relief and permeability enhancement method, comprising the following steps: S1, collecting the methane concentration value, the environmental temperature value and the pose coordinate value of the operation terminal in the drill hole, digitally encoding and clock synchronously marking the collected analog signals, and generating the environmental state monitoring data. In the present application, by comparing the physical feedback characteristics of the rock after excitation with the preset ideal cracking state, the core operation parameters such as laser output energy and scanning speed are automatically corrected by using the deviation calculation, the adaptive and rapid response of the operation process to the hardness and material changes of the rock stratum is realized, the problem of rock breaking efficiency reduction or slag blockage caused by sudden change of geological conditions is effectively solved, and the stability and efficiency of the non-contact cracking operation in the complex environment are significantly improved.

The invention discloses a road laser deicing parameter determination method based on power threshold and weight optimization, belongs to the technical field of laser application, and aims to solve the problem of poor deicing effect or damage to pavement materials caused by improper selection of laser parameters. The method comprises the following steps: S1, preparing a standardized ice-coated asphalt mixture test piece; s2, determining a scanning path and a scanning speed of a laser head; s3, preliminarily estimating laser power parameters; s4, performing a laser deicing experiment under a controllable environment condition, and synchronously monitoring an ice layer state and a surface temperature field of the test piece; s5, determining a laser power threshold value; and S6, based on an analytic hierarchy process, determining an efficiency weight and a safety weight for different deicing scenes, and calculating an optimal laser deicing power P.

An ophthalmic surgical laser system includes: a laser that produces a pulsed laser beam having a pulse energy and pulse repetition rate; a high frequency fast scanner; an XY-scan device; a Z-scan device; and a controller. The controller controls the high frequency scanner to produce a scan line having a scan width; controls the XY-scan device and the Z-scan device to carry out of first sweep of the scan line in a first sweep direction and to carry out a second sweep of the scan line in a second sweep direction that is not parallel to the first sweep direction thereby defining an overlap region. At least one of the pulse energy, repetition rate, XY-scan speed, and the scan width is varied so as to accelerate the cutting speed and reduce the exposure of ophthalmic tissue in the overlap region to multiple exposures of laser pulses configured to modify ophthalmic tissue.

The invention provides a preparation and packaging method of a Wheatstone bridge integrated laser heat sink temperature measurement platinum resistor, and relates to the technical field of semiconductor laser packaging, and the method comprises the following steps: S1, substrate pretreatment: employing an ultrasonic cleaning and plasma cleaning combined technology to remove impurities on the surface of a high thermal conductivity aluminum nitride ceramic substrate; a platinum thermistor and a Wheatstone full-bridge circuit are integrated on the surface of an aluminum nitride ceramic heat sink, dual-mode monitoring of the temperature gradient and the absolute temperature of a laser chip is achieved, and the device is suitable for laser heat sink surface temperature gradient monitoring, local hot spot early warning, laser chip junction temperature monitoring, packaging overall temperature stability evaluation, and the like. The single-point thermistor is suitable for optical communication, quantum precision measurement and other laser application scenes with extremely high temperature stability requirements, temperature gradient and absolute temperature detection is synchronously achieved through the layout of the multi-resistor full-bridge Wheatstone bridge, and the temperature detection sensitivity and the anti-interference capacity of the single-point thermistor are improved.

The application discloses a full-fiber structure laser amplifier of a multi-core optical fiber, relates to the technical field of optical systems, and comprises an injection optical fiber, a beam splitting waveguide, a phase controller, an amplification device, a beam combining waveguide and an end cap. The injection optical fiber is used for injecting input laser into the beam splitting waveguide to form a beam splitting laser array. The beam splitting laser array is phase controlled by the phase controller and then transmitted to the amplification device for amplification processing. The amplification device outputs amplified amplification laser array to the beam combining waveguide. The beam combining waveguide combines the amplification laser array to obtain beam combining laser. The beam combining laser is expanded by the end cap to generate output laser. The scheme provided by the application can improve the stability of the laser amplification process.

The application discloses a device for plastic welding by using a mechanical cavity homogenization laser, which comprises a laser for emitting a laser beam and transmitting the emitted laser beam into a mechanical homogenization cavity through a plurality of optical fibers; the mechanical homogenization cavity is used for reflecting the laser beams output by the plurality of optical fibers in the cavity, so that the laser beams which do not intersect with each other are superimposed, and energy distribution homogenization is realized; a clamping jig assembly is used for fixing the mechanical homogenization cavity and a plastic welding product; and a driving assembly is used for driving the clamping jig assembly to open and close. The application solves the problems of uneven multi-beam splicing or high machining complexity and machining requirement in the current laser synchronous welding application.

A patient interface device (PID) for contacting an eye surface and having a meniscus conversion component. A pin, clip and ridge configuration for holding a window and holding an open BSS reservoir in the PID. A PID for an integrated system and method for performing laser and phacoemulsification procedures. A PID for a reconfigurable system for performing laser surgery in a laser configuration and then reconfigured to a phacoemulsification configuration to perform phacoemulsification and then reconfigured back to the laser configuration.

The invention discloses an all-fiber structure laser amplifier of a multi-core optical fiber, and relates to the technical field of optical systems.The laser amplifier comprises an injection optical fiber, a beam splitting waveguide, a phase controller, an amplifying device, a beam combining waveguide and an end cap, the injection optical fiber is used for enabling input laser to be injected into the beam splitting waveguide to form a beam splitting laser array, and the phase controller is used for controlling the phase controller; after being subjected to phase control by the phase controller, the beam splitting laser array is transmitted to the amplification device for amplification processing; the amplifying device outputs the amplified laser array to the beam combining waveguide, and the beam combining waveguide synthesizes the amplified laser array to obtain combined laser; and after the combined laser is expanded by the end cap, output laser is generated. By applying the scheme provided by the embodiment of the invention, the stability of the laser amplification process can be improved.