35 results about "Laser safety" patented technology

The invention discloses a dynamic multi-spot projection optical system based on an LED light source, which comprises the LED light source, a reflecting cover, a grating sheet, a condensing lens, a concave reflector and an optical reflection assembly, and is characterized in that the LED light source is arranged at the bottom of the reflecting cover, and the grating sheet is provided with a light-transmitting area with a preset pattern shape; the reflecting cover consists of a plurality of plane reflectors A; the concave reflector consists of a plurality of plane reflectors B; light emitted by the LED light source forms a pattern light beam through the grating piece, the light beam is divided and reflected into a plurality of sub light beams through the conical reflecting cover, and the sub light beams are guided to the condensing lens through the optical reflecting mirror set. According to the invention, a low-cost, laser-free and safe LED scheme is adopted, and through innovative optical design, a complex dynamic light and shadow effect comparable to or even surpassing laser projection is realized, and the imaging definition is kept unchanged within a projection distance range of 2-15 meters.

The invention discloses an intelligent early warning method and system based on laser control industrial data, and belongs to the technical field of laser safety early warning. The system comprises an equipment control module, a data acquisition module, an analysis database, a model management module, a monitoring judgment module and an alarm module, the equipment control module is used for controlling the laser to cut the industrial product; the data acquisition module is used for acquiring cutting data and parameter data generated in the industrial product cutting process; the analysis database is used for storing historical data of the cutting data and the parameter data; the model management module is used for establishing a deviation analysis model and analyzing the influence of different influence parameters on the cutting deviation of the industrial product; the monitoring judgment module is used for judging whether current industrial product cutting is abnormal or not; the alarm module is used for carrying out abnormity alarm; according to the method, the influence of different influence parameters on the cutting deviation of the industrial product is considered, and the accuracy of system data analysis is improved.

1. Name of the product in this design: Laser Servo Pressure Welding Gun. 2. Purpose of this design: For laser welding, to solve the problems of part gaps and laser safety protection. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The application discloses a laser safety control system and a control method thereof, and relates to the technical field of lasers.The laser safety control system comprises a multimode main control device and at least one single-mode main control device, wherein the multimode main control device is electrically connected with the single-mode main control device, is used for receiving two emergency stop interlocking signals input through an external control board, and is used for coupling the two emergency stop interlocking signals with a pulse width modulation pulse signal to form a double-channel emergency stop interlocking pulse signal and transmitting the double-channel emergency stop interlocking pulse signal to the single-mode main control device; and the single-mode main control device is used for receiving the double-channel emergency stop interlocking pulse signal and controlling a laser according to the double-channel emergency stop interlocking pulse signal. Therefore, the safety control logic of the laser can be optimized, the safety level of the laser control is improved, the workpiece is prevented from being damaged, the machining efficiency is improved, and the safety of equipment and personnel is ensured.

The present patent application aims to teach imaging apparatus, methods, and systems for providing a laser safety interlock for at least one optical probe in the apparatus. The interlock mechanism ensures the lasers are off when the optical probe is not spinning to reduce the laser hazard.

A safety apparatus that includes a case, a diode sensor secured within the case, and a fastener for removably securing the case to a laser safety clipper ring.

The utility model relates to the field of bending machine safety protection technology, especially a kind of laser safety light curtain support mobile quick fixing device, including laser safety light curtain, and the bracket aluminum profile is bolted on the upper end of laser safety light curtain.The laser safety light curtain support mobile quick fixing device can be separated from the adjusting position cylindrical pin when the safety light curtain wants to be adjusted to the corresponding position, and then the safety light curtain support mobile quick fixing device can be conveniently slid up and down, and after adjustment is completed, the safety light curtain support mobile quick rotating sleeve is connected on the adjusting position cylindrical pin, which can be immediately fixed without adjusting height adjusting block and clamping handle, without repeating light calibration work, time-saving and labor-saving;When die is replaced, only the position of adjusting position cylindrical pin needs to be changed, the safety light curtain can be moved, fixed after adjusting to the corresponding position, and then replaced, with high efficiency and convenience.

The utility model relates to a device for automatically adjusting a laser safety protection mechanism, which comprises a support, a servo motor mounted at the upper end of the support, a support mounted at the lower end of the support, a guide rail mounted in the support along the length direction, a screw mounted on the support, a lower end of the screw rotatably connected with the support, an upper end of the screw connected with the servo motor, and a lower end of the screw connected with the servo motor. The guide rail is provided with a sliding seat, the sliding seat is in threaded connection with the lead screw, one side of the sliding seat is connected with a supporting arm, the supporting arm is connected to the side face of a sliding block of the bending machine, and the supporting seat is provided with a laser safety protection mechanism; the servo motor is in signal connection with the bending machine main control system; according to the utility model, the height of the laser safety protection mechanism can be automatically adjusted according to different molds, so that the laser safety protection mechanism can be matched with the corresponding mold.

1. The name of the design product: laser safety house. 2. The use of the design product: for safe containment of laser equipment and its operating space function, to realize the safety protection of laser operators. 3. The design points of the design product: the shape of the product as a whole. 4. The picture or photo that best indicates the design points: perspective view.

Machine device (1) for laser processing, in particular for laser cutting, of a workpiece (2), comprising: a processing laser source (6) for generating a processing laser beam (7) with a processing wavelength (λ) W ), at least one sensor device (9, 10) comprising an illumination laser source for generating an illumination laser beam for illuminating the workpiece (2) with an illumination wavelength in the visible wavelength range and a detector for detecting an illuminated workpiece area where the illumination laser beam strikes the workpiece (2). The machine device (1) has a machine housing (3) in which the sensor device (9, 10) is arranged. The machine housing (3) has a laser protection screen (4) which is opaque to radiation with an illumination wavelength of less than 490 nm, preferably less than 470 nm, and particularly less than 460 nm.

1. Name of the product in this design: Laser Heart Protector (B). 2. Purpose of this design: For use in human laser irradiation therapy. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention belongs to the field of water-guided laser safety control, and discloses a multi-sensor fusion anti-collision system for microjet and a control method thereof, and the anti-collision system comprises a linear sensor network, an analog quantity acquisition module, a switch, a data processing module and an execution module. Through multi-sensor data fusion, dynamic threshold judgment and setting of a corresponding grading response strategy, comprehensive monitoring and protection of the operation state of the micro-jet equipment are achieved, the detection precision of the sensors is greatly improved, tiny displacement changes can be captured in time, and the collision response time is remarkably shortened; a pre-trained risk assessment model is combined with historical processing data to dynamically optimize a dynamic threshold, so that the false alarm rate is effectively reduced; furthermore, by adopting a redundancy detection array formed by linear sensors, the non-dead-corner continuous monitoring of the micro-jet is realized, and the collision source is accurately positioned, so that the safety of the micro-jet equipment is improved, the processing quality is remarkably improved, and the service life of the equipment is remarkably prolonged.

The present invention discloses a safety monitoring device based on tunnel construction, which relates to the field of laser safety detection technology. Drive motors are symmetrically fixedly installed at both ends of a fixed box, and the output shafts of the two drive motors are fixedly connected to electromagnetic blocks. Mounting frames are fixedly installed at positions corresponding to the two inner walls of the fixed box and the two drive motors. The present invention utilizes electromagnetic blocks to adsorb metal round blocks, and then the drive motor can drive the rotating shaft and the rotating block to rotate, so that the guide rollers can be used to fit the inner wall of the tunnel under construction. The guide rollers on both sides start the limiting and guiding function of the entire device. When the mobile base moves forward, the guide rollers always fit the inner wall of the tunnel, so that the entire device always remains in the middle of the tunnel, preventing the device from offsetting or colliding when encountering a bend during the forward movement. There is no need for staff to monitor the forward trajectory at all times, and the use is more convenient.

The utility model discloses a quick-change type laser safety protection device which comprises a shell, a buckle, a quick-change plate, an exhaust pipe and a flow meter. Wherein a plurality of clamping pieces are arranged at the upper end of the shell; the shell is further provided with a first limiting groove. The buckle is movably arranged in the first limiting groove; a plurality of clamping grooves, second limiting grooves and through holes are formed in the quick-change plate; the plurality of clamping grooves are in one-to-one correspondence with the plurality of clamping pieces, and the clamping pieces can be clamped with the quick-change plate through the corresponding clamping grooves; the second limiting groove is matched with the buckle, and the buckle can lock the shell and the quick-change plate through the first limiting groove and the second limiting groove; the through hole is communicated with the shell; the exhaust pipe is communicated with the shell; and the flow meter is communicated with the exhaust pipe. The utility model discloses a laser marking device. The utility model solves the problems that the existing device does not have a quick change function and is difficult to monitor the air exhaust flow; rapid maintenance and cleaning are realized, and the operation state of equipment is accurately mastered.

A diagnostic system for a high power laser system, which detects and responds to malfunctions in interlocks of the laser safety system. A fault detected in any interlock circuit mandates a limitation in the operating conditions of the laser, or even a shutdown. In order to distinguish between transient faults, arising typically from ambient conditions, and more permanent faults, arising from faulty components or circuits, and which require external intervention to rectify, the system uses a database of possible fault classifications to determine the likely type of fault. If the fault is likely transient, the laser is maintained in a reduced power state, until one or more temporary interlocks are applied as backup for the failed interlocks, so that the system can be repeatedly tested for fault correction at full power output. Once the fault recovers, the backup interlocks may be disabled and the system returned to full operation.

The present application relates to the field of unmanned aerial vehicle countermeasure, in particular to a kind of laser safety control method of laser anti-unmanned aerial vehicle system.This method first establishes the three-dimensional layout model of the protected area, then combines target information, equipment information and the three-dimensional layout model of the protected area, calculates airspace visibility safety degree, view target safety degree, shielding area safety degree, and introduces target threat degree, finally weights and sums airspace visibility safety degree, view target safety degree, shielding area safety degree and target threat degree, obtains the final safety degree, and obtains laser control judgment result.The present application combines three-dimensional layout model, multi-dimensional safety degree and target threat degree, realizes the safety control of laser of laser anti-unmanned aerial vehicle system under controllable collateral damage, so that laser anti-unmanned aerial vehicle system can exert maximum damage power.

The invention provides an automatic laser beam tracking termination device based on image feedback control and a method thereof, and relates to the field of laser safety protection. The terminating device comprises a laser terminating unit used for absorbing and dissipating laser energy; the light spot detection unit is used for collecting a weak light signal transmitted from the tail end of the laser termination unit and forming a light spot image; the control and operation unit is used for processing the light spot image and generating a correction instruction according to deviation information output by an algorithm; and the execution mechanism unit is used for adjusting the pose of the laser termination unit according to the instruction. Each unit forms a closed-loop control system through a light path and an electric signal interface, the position deviation of a laser spot can be detected in real time, the termination device is automatically driven to perform tracking and alignment, the problem of energy leakage caused by light beam drift of a traditional fixed terminator is effectively solved, and the safety and stability of a laser system are remarkably improved.

The application relates to the technical field of control systems, in particular to a laser safety control system for a false tooth processing device, which comprises a rack frame and a blank rack arranged in the rack frame, a pair of laser sensors and a temperature sensor are arranged on one side of the blank rack; the system further comprises a comparison unit and an active protection unit; during the process of taking a false tooth blank from the blank rack by the false tooth processing device, if the pair of laser sensors are blocked, the temperature sensor synchronously measures the temperature of the blocking object and sends the temperature data to the comparison unit; when the pair of laser sensors are blocked, the laser safety control system can compare and judge the human body and the object according to the surface temperature of the blocking object, so that it is selected whether to stop the false tooth processing device or to actively block and protect, so that the stopping frequency of the false tooth processing device is reduced.

The invention relates to a hand-held safety clamping system (10) for a laser marking device (11) for a wobble-free connection of a workpiece (12) with the laser marking device (11) and for ensuring laser safety during a processing process, wherein the safety clamping system (10) comprises two parallel sealing elements (13), a device (14) for generating a vacuum between the sealing elements (13) and the workpiece (12), and a vacuum sensor (15) which monitors the vacuum and, in the event of sufficient vacuum, triggers the release for marking and the marking process.

A method for operating a light steering projection system, comprising providing a light steering projection system comprising at least one laser, at least one phase modulator, at least one amplitude modulator, at least one projection lens, and a camera system, including a camera sensor; capturing a reference image using the camera system when the projection system operates in non-steered mode, in which the phase modulator applies a same phase to all pixels; capturing one or more test images using the camera system when the projection system operates in steered mode, in which the phase modulator generates varying illumination patterns by applying different phases to different pixels; comparing the test images to the reference image to determine relative changes in illumination; determining whether the relative changes exceed a predetermined threshold; and if the relative changes exceed the predetermined threshold, adjusting target brightness values of images to be displayed such that a radiance emitted by the projection system remains below a predetermined laser safety classification threshold corresponding to a predefined laser safety classification.

This invention discloses an intelligent early warning method and system based on laser control industrial data, belonging to the field of laser safety early warning technology. The system includes an equipment control module, a data acquisition module, an analysis database, a model management module, a monitoring and judgment module, and an alarm module. The equipment control module controls the laser to cut industrial products; the data acquisition module collects cutting data and parameter data generated during the cutting process; the analysis database stores historical data of cutting data and parameter data; the model management module establishes a deviation analysis model to analyze the impact of different influencing parameters on the cutting deviation of industrial products; the monitoring and judgment module determines whether there are any abnormalities in the current cutting of industrial products; and the alarm module issues alarms for abnormalities. This method considers the impact of different influencing parameters on the cutting deviation of industrial products, improving the accuracy of system data analysis.

The utility model belongs to the technical field of optical fiber communication, and discloses an optical power control module for laser safety, which comprises an optical fiber, CAN (Controller Area Network) interfaces arranged at two ends of the optical fiber, two groups of CAN interfaces respectively connected with the output end of a combiner and the input end of a wave separator, and an optical power reduction device erected on the optical fiber, the optical power reduction device comprises a structural block, a sealing cover, a circuit board and an optical filtering structure, the optical filtering structure comprises five groups of optical filters, five groups of optical filter fixing blocks, ten groups of mobile control devices and five groups of permanent magnets, each mobile control device comprises an electromagnetic fixing block, an iron core and a coil, and current generates a magnetic field through the coil wound on the iron core; the permanent magnet is pushed by the magnetic field to control the optical filter to move, the function of reducing the optical power is achieved, the structure design is compact and reasonable, the output optical power can be reduced, various reducing modes can be adjusted, and the device is small in size, good in portability, easy to use and very long in service life.

The invention discloses a connecting device based on a hollow-core energy transmission optical fiber. The connecting device comprises the hollow-core energy transmission optical fiber, a sleeve, a quartz end cap and a QBH connector shell. The sleeve is sleeved and fixed outside the hollow-core energy-transmitting optical fiber, after the end faces of the sleeve and the hollow-core energy-transmitting optical fiber are ground and polished to be flush, the outer wall of the sleeve is welded with the quartz end cap, and a formed assembly is installed in the QBH connector shell with the water-cooling circulation structure. According to the device, the welding process is isolated through the sleeve, pore collapse of the hollow-core optical fiber microstructure is avoided, the advantages of low loss and low nonlinear effect of the hollow-core optical fiber and efficient heat dissipation of the QBH connector are combined, Fresnel reflection is reduced in cooperation with the anti-reflection film, safe and stable transmission of high-power laser is achieved, the device meets the requirements of multiple fields such as industrial processing, and the application prospect is wide.

The invention discloses a distributed optical fiber sound wave monitoring system based on a weak grating array and a measuring method. The method has the beneficial effects that through the speed grade self-adaptive technology, tedious manual parameter configuration is thoroughly eliminated, the use threshold is lowered, and system performance reduction or damage caused by parameter setting errors is avoided; meanwhile, by combining the high signal-to-noise ratio characteristic of the weak grating and the advanced coherent demodulation technology, the extremely high sensitivity of 0.2 nanostrain and the highest spatial resolution of 1 meter are achieved, and meanwhile the measurement distance is not limited by traditional Rayleigh scattering DAS and can reach 6.5 kilometers; in addition, the 7-level speed level covers various application scenes of 20-1000 sensors, and the system can automatically work in the optimal state no matter in short-distance precision monitoring or long-distance large-range monitoring. In addition, an all-around safety protection system is constructed from IIIB-level laser safety protection, optical fiber connector dustproof design and overheating protection to system error diagnosis indicator lights.

A system for safe mixed-reality visualization of one or more lasers. The system comprises a headset component configured to fit over a user's eyes. The headset component may comprise a plurality of cameras configured to generate images of an environment. The headset component may further comprise a mountable optical device configured to be applied to one or more cameras. Each mountable optical device may comprise a mounting component and one or more inner optical elements operatively coupled to the mounting component. The one or more inner optical elements may comprise an optical filter configured to reduce saturation by the one or more laser beams in the image generated by the camera. The headset component may further comprise a display component communicatively coupled to a computing device, configured to display a combined image to the eyes of the user.

A diagnostic system for a high power laser system, which detects and responds to malfunctions in interlocks of the laser safety system. A fault detected in any interlock circuit mandates a limitation in the operating conditions of the laser, or even a shutdown. In order to distinguish between transient faults, arising typically from ambient conditions, and more permanent faults, arising from faulty components or circuits, and which require external intervention to rectify, the system uses a database of possible fault classifications to determine the likely type of fault. If the fault is likely transient, the laser is maintained in a reduced power state, until one or more temporary interlocks are applied as backup for the failed interlocks, so that the system can be repeatedly tested for fault correction at full power output. Once the fault recovers, the backup interlocks may be disabled and the system returned to full operation.

An ophthalmological optical observation device for use in laser eye treatment is provided. This device comprises a non-contact fundus imaging system with at least one optical element and a laser safety filter with a transmission characteristic suitable for blocking the laser radiation used in the eye treatment. At least one optical element of the non-contact fundus imaging system is provided with at least one coating that achieves the transmission characteristic and thus forms the laser safety filter.

1. The name of the design product: servo laser pressure welding gun. 2. The use of the design product: for laser safety protection and pressure welding. 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 invention discloses a single-table-board laser cutting machine capable of reducing laser radiation and a working method, and belongs to the technical field of laser cutting machines. The single-table-board laser cutting machine capable of reducing laser radiation comprises a laser cutting machine fixing base, an automatic switch cover is arranged at the upper end of a low workbench, and a laser radiation sensor is further arranged on the low workbench. The problems that an existing laser cutter is not provided with a protection structure, and the safety of the working environment cannot be guaranteed are solved, the small laser cutting box is further arranged on the moving base on the low workbench, secondary finish machining of small workpieces or pipes is achieved, the machining range of equipment is expanded, and the machining efficiency is improved. The laser radiation sensor and the plc module are in linkage to control the electric air cylinder, radiation abnormity automatic protection is achieved, manual intervention is not needed, the response time is millisecond, the protection frame is matched with the anti-radiation protection door and the automatic opening and closing cover, the laser safety standard is met, equipment maintenance and process optimization are facilitated, and the safety of the working environment is improved.

Apparatus and associated methods relate to generating and verifying a tamper-proof media (e.g., an image, a video). In an illustrative example, a media provenance verification system (MPVS) may automatically verify a provenance of a media file of temporally related frames. The MPVS, for example, may retrieve verification records associated with the media file from a decentralized ledger. The MPVS may select a verification record corresponding to a media frame of the media file. From the media frame, the MPVS may extract a laser security signature of the media frame. For example, the laser security signature may include a clock pattern related to a public verifiable random value (PVR), a depth marker, and a hash of a previous media frame. In some implementations, the media frame may be determined to be real when a time provenance related to a creation time, a depth provenance related to an image depth, and a continuity provenance related to a continuity are passed. Various embodiments may advantageously provide a real-time tamper-proof video validation.