33 results about "Mixed beam" patented technology

The invention provides a neutral atom beam generation device and a neutral atom detector calibration device. The neutral atom beam generation device comprises an ion beam generation device used for emitting a mixed beam; the particle energy testing device comprises an incident end, a first emergent end, a second emergent end and an acquisition device, the incident end is used for receiving the mixed beam; the incident end is communicated with the second emergent end through an arc-shaped channel, and a deflection magnetic field is arranged at the arc-shaped channel, so that positive ions in the mixed beam flow deflect and bombard the acquisition device; the acquisition device is used for acquiring a first bombardment position of positive ions; the first emergent end is used for emitting a first ion beam; the processing device is connected with the collecting device and used for determining the deflection radius of the positive ions according to the first bombardment position and determining the energy of the positive ions and the neutral atoms according to the deflection radius; and the particle screening device is used for absorbing positive ions and negative ions in the first ion beam so as to emit a neutral atom beam.

The present invention relates to a single particle effect simulation irradiation device based on a heavy ion cyclotron, belonging to the technical field of radiation hardening. The device includes a mixed beam switching module, a beam line beam expansion module, a diagnostic target chamber and an irradiation target chamber. A beam current on-line monitoring module is provided in the diagnostic target chamber, and a beam current measurement module is provided in the irradiation target chamber. They are all connected through pipelines. The mixed beam switching module is used to quickly provide a single ion beam current. After being expanded by the beam line beam expansion module, a large-area uniform single ion beam current is obtained. The expanded single ion beam current is irradiated onto the device under test in the irradiation target chamber. During the irradiation process, the fluence / fluence rate and beam spot uniformity of the single ion beam current are monitored by the beam current on-line monitoring module, and the beam current energy and fluence rate are measured by the beam current measurement module. Using the device provided by the present invention can solve problems such as the generation of a large-area uniform beam spot, extraction to the irradiation target chamber for irradiation, and rapid sample change.

The application relates to the technical field of optical computing and artificial intelligence, and provides a multi-task diffraction neural network device and processing method based on multi-wavelength parallelism, the device comprising an input unit, a diffraction modulation structure, a light detection assembly and a processing unit; the input unit is used for modulating the inputs of N tasks to N wavelengths, inputting a mixed light beam formed after light field superposition into the diffraction modulation structure, and the diffraction modulation structure is used for outputting after parallel processing of each wavelength component of the input mixed light beam; the light detection assembly is used for detecting the light intensity of the output plane of the diffraction modulation structure; the output plane comprises M categories of detection regions, and each detection region comprises N sub-regions; and the processing unit is used for determining the inference results of the N tasks corresponding to the N wavelengths according to the light intensity distribution of the corresponding sub-region in each detection region. The problems that D2NN can only adapt to a single deep learning task and has poor universality are solved, multi-task parallelism is realized, and the universality is improved.

The embodiment of the present application proposes an uplink transmission method, device and readable storage medium. The uplink transmission method includes: receiving capability information and a sounding reference signal (SRS) of a terminal device; normalizing the matrix corresponding to the mixed beam after weighted superposition of multiple spatial beams based on the capability information and the SRS, and determining a multi-antenna codebook, wherein the normalization factor used in the normalization makes the total power of the mixed beam less than or equal to 1; and sending uplink scheduling information including precoding information to the terminal device, wherein the precoding information is determined by the multi-antenna codebook. By adopting the codebook normalization factor, the total power of the mixed beam is made less than or equal to 1, ensuring that the sum of the precoding coefficient power of each polarization direction in the precoding is not greater than half of the total precoding coefficient power, thus meeting the requirements of the communication standard.

The utility model discloses a kind of laser device and laser therapeutic instrument, including first laser, second laser, beam synthesis subassembly and optical fiber;The first laser is used for emitting holmium laser towards the beam synthesis subassembly;The second laser is used for emitting thulium laser towards the beam synthesis subassembly;The beam synthesis subassembly is used to beam combining the holmium laser emitted by the first laser and the thulium laser emitted by the second laser into mixed light beam, and the mixed light beam is output to the optical fiber.Wherein, laser device can generate the mixed light beam of holmium laser and thulium laser when working to beam combining, and mixed light beam is guided to target position (such as the region needing treatment) by optical fiber, so that corresponding treatment can be carried out using mixed light beam, so that the treatment effect of holmium laser and thulium laser can be considered.

The invention relates to a laser processing apparatus and a method of cutting a substrate. According to an embodiment, a laser processing apparatus includes: a laser generating unit that generates a base laser beam; a Gaussian beam conversion unit that converts the base laser beam into an initial Gaussian beam; a phase mask part which converts the initial Gaussian beam into a primary mixed beam; and an objective lens unit that converts the primary mixed light beam into a final mixed light beam including a first light beam continuously applied as a Bessel-like light beam to form a cutting line on the mother substrate and a second light beam continuously applied as a Bessel-like light beam to form a cutting line on the mother substrate, and supplies the final mixed light beam to the mother substrate. The second beam forms a processing line as a Gaussian beam which is located on the surface of the mother substrate and is not located on the whole of the mother substrate.

The embodiment of the application provides a kind of miniature infrared spectrometer and electronic equipment, for environmental monitoring, biological medical treatment, food safety etc..The spectrometer additionally increases narrow-band light source, for emitting second light beam, by micro stepping motor control plane grating, the first background spectrum and second background spectrum are generated in linear array detector by the second light beam spectrophotometry;In addition, the first light beam is emitted to the surface of the object to be measured by wide spectrum light source and occurs diffuse reflection, by micro stepping motor control plane grating, the first mixed spectrum and second mixed spectrum are generated in linear array detector by the mixed light beam spectrophotometry of first light beam and second light beam.Finally, the spectrum of the object to be measured is determined by the spectrum of narrow-band light source, first mixed spectrum and second mixed spectrum, and first background spectrum and second background spectrum by linear array detector.The technical scheme of the application can further compress the volume of spectrometer, reduce cost, and also can realize wide spectral range detection.

The invention discloses a high-uniformity mouth lamp with a light spot shaping function. The mouth lamp with the high-uniformity light spot shaping function comprises a light emitting unit, the optical engine is arranged behind the light-emitting unit along a light path and comprises a transmission-type light mixing body which is arranged close to the light-emitting unit and is used for receiving and mixing light rays emitted by the light-emitting body so as to form mixed light beams with uniform colors; the light gathering unit is arranged on the light emitting side of the transmission-type light mixing body and used for gathering the mixed light beams; and the shaping unit is arranged on the light emitting side of the light condensing unit and is used for shaping the converged light beams into light spots in a preset shape. According to the high-uniformity light spot shaping mouth lamp, the problems that in the prior art, light spot illumination is not uniform, colors are separated, and the illumination mode is single are solved.

Provided in the present application are a light source, a projection device, a vehicle-mounted display system, and a vehicle. The light source comprises a laser emission unit, a fluorescence emission unit and a beam combiner, wherein the laser emission unit is configured to emit to the beam combiner a laser beam propagating in a first direction, the laser beam being in a first polarization state; the fluorescence emission unit is configured to emit to the beam combiner a fluorescence beam propagating in a second direction, the fluorescence beam comprising a first fluorescence beam in the first polarization state and a second fluorescence beam in a second polarization state; and the beam combiner is configured to receive the laser beam and the fluorescence beam, and perform polarization beam combining on the laser beam and the second fluorescence beam, so as to obtain a first mixed beam. A polarization light combining scheme is incorporated into a light source architecture in which laser and fluorescence are mixed, thereby realizing a low-energy-loss laser and fluorescence mixing scheme.

The application provides an optical detection system, an optical detection method and a laser radar system, which can be applied to the fields of optical communication, laser radar, laser radar positioning, laser radar ranging, image processing and the like. The system comprises a beam splitting surface, a first light beam reflecting surface, a second light beam reflecting surface, two detector arrays and a readout circuit. The first light beam reflecting surface and the second light beam reflecting surface are respectively used for reflecting two mixed light beams after the mixed light beams of the echo light and the local oscillator light pass through the beam splitting surface; the two detector arrays are respectively used for converting the two mixed light beams into electrical signals; and the readout circuit is used for processing the electrical signals output by the two detector arrays, wherein the spacing between the detector arrays, the spacing between the light beam reflecting surfaces and the beam splitting surface and the spacing between the parallel light beam reflecting surfaces are related. The detection is realized by using two coherent signals, and the detection sensitivity of the echo light signal can be improved and the detection distance can be increased without relying on the size of the echo light energy.

The invention relates to a small-signal free radical infrared spectrum detection method. The method comprises the following steps: 1, acting photolysis laser on a precursor molecular beam source to obtain a free radical and precursor mixed beam source; 2, infrared laser and free electron laser act on the free radical and precursor mixed beam source to obtain a semi-excitation mixed ion beam source; 3, after the semi-excitation mixed ion beam source passes through an accelerator, a flight time difference T is formed between precursor ions and free ions in the semi-excitation mixed ion beam source; 4, the ion beam source enters a deflection electric field, a first electrode of the deflection electric field applies a voltage pulse signal set according to the flight time difference T, precursor ions deflect, move and are discharged when the voltage pulse signal exists, and the ion beam source enters a detector after passing through a reflector when the voltage pulse signal does not exist. Deflection, movement and discharge of precursor ions are realized in the deflection electric field, free radical ion signals can be increased, and measurement of small-signal free radical infrared spectrum is realized.

The invention relates to an STED light beam shaping system with a self-adaptive alignment function. The STED light beam shaping system comprises an STED light generation module and a light path coaxial detection module, the STED light generation module comprises a dichroscope, a 4F system and an SLM; the light path coaxial detection module comprises a reflector, a pinhole filtering system, a focusing lens and a camera; a mixed light beam formed by coaxial exciting light and loss light is emitted to the dichroscope, the exciting light is reflected to the reflector through the dichroscope and then is irradiated to the SLM through the 4F system, the SLM is used for converting the loss light into vortex light, the vortex light enters the 4F system, then passes through the dichroscope and then coincides with the exciting light emitted to the reflector, and the vortex light is emitted outwards. The light path coaxial detection module is used for detecting the light spot coaxiality of the exciting light and the loss light; the zero-level reflection background caused by imperfect modulation of the SLM can be thoroughly eliminated, and the engineering pain point that displacement can be driven by angle adjustment is solved by introducing a 4F system.

Light source module comprising: a first light source (1) generating a first beam (10) and comprising: a second light source (12) generating a second beam (120), a third light source (14) generating a third beam (140), a first beam splitter (16) arranged along the path of the second beam (120) and the third beam (140), such that the second light source (12) is on one side of the first beam splitter (16) and the third light source (14) is on the other side of the first beam splitter (16), which transmits the second beam (120) and reflects the third beam (140) and mixes the second beam (120) and the third beam (140) to form the first beam (10), a fourth light source (4) generating a fourth beam (40), a second beam splitter (7) arranged along the path of the first is arranged in beam (10) and the fourth beam (40),such that the first light source (1) is arranged on one side of the second beam splitter (7) and the fourth light source (4) is arranged on the other side of the second beam splitter (7), which reflects the first beam (10) and transmits the fourth beam (40) and mixes the first beam (10) and the fourth beam (40) to form a mixed beam (ML), and an optical processing device (9) arranged along the path of the mixed beam (ML), wherein one end receives the mixed beam (ML) and the other end projects the mixed beam (ML), characterized in that the optical processing device (9) tapers gradually from one end of it to its other end, and the second beam (120) is a red beam and the third beam (140) is a mixed beam of a blue beam and an ultraviolet beam, wherein the fourth beam (40) is a yellow beam,such that the first beam (10) is a mixed beam of a red beam, a blue beam and an ultraviolet beam, and the mixed beam (ML) in which the first beam (10) and the fourth beam (40) are mixed is a mixed beam of a white beam and an ultraviolet beam.

The invention relates to a compact superconducting cyclotron for isotope production. The high-current ion beam generator comprises a high-charge-state ECR ion source and a high-current proton source, the high-charge-state ECR ion source generates a milliampere-level high-charge-state heavy ion beam, and the high-current proton source generates a milliampere-level proton beam and a hydrogen molecule ion beam. An inlet of the injection beam line is connected with the high-charge-state ECR ion source and the high-current proton source. And a low-energy high-current ion mixed beam generated by the high-current ion beam generator is transmitted to the accelerator through the injection beam line. And the accelerator is connected with two symmetrical lead-out beam lines through a lead-out channel of the accelerator, and the two lead-out beam lines are positioned on the two sides of the accelerator so as to lead out a high-energy strong-current heavy ion beam and a high-energy strong-current proton beam. The advantages of the heavy ion beam and the proton beam are considered, and the medical TAT isotope is produced more efficiently and safely.

The application provides a neutral atom beam generating device and a neutral atom detector calibration device. The neutral atom beam generating device comprises: an ion beam generating device for emitting a mixed beam; a particle energy testing device comprising an incident end, a first exit end, a second exit end and a collection device; the incident end is used for receiving the mixed beam; the incident end and the second exit end are communicated through an arc-shaped channel, and a deflection magnetic field is arranged at the arc-shaped channel to deflect positive ions in the mixed beam and hit the collection device; the collection device is used for obtaining a first hitting position of the positive ions; the first exit end is used for emitting a first ion beam; a processing device connected with the collection device is used for determining a deflection radius of the positive ions according to the first hitting position, and determining the energy of the positive ions and neutral atoms according to the deflection radius; and a particle screening device is used for absorbing the positive ions and negative ions in the first ion beam to emit a neutral atom beam.

The utility model provides ultrafast laser optical parameter amplifier equipment, which sequentially comprises a spectroscope, an optical parameter amplifier and an optical parameter amplifier along the propagation direction of an optical path, a frequency doubling crystal; a seed optical crystal; the time delay assembly is used for adjusting the propagation path length of the seed light so as to adjust the propagation time of the seed light; the first dichroscope is used for adjusting the propagation direction of the pump light so that the pump light and the adjusted seed light coincide with each other, and a mixed light beam is obtained; the amplification crystal is used for amplifying the energy of the seed light in the mixed light beam; the second dichroscope is used for separating the pump light in the mixed light beam to obtain seed light after energy amplification; a control assembly; the control assembly is electrically connected with the delay assembly; according to the utility model, automation from time matching of the delay assembly to angle adjustment of the amplification crystal is realized, human intervention is reduced, and operation precision and efficiency are improved; and personal errors are reduced through automatic control, and high repeatability and stability of the experiment are ensured.

A particle beam therapy device that irradiates a patient with a cation beam to perform treatment, the device including a passage selection unit that selectively passes through the cation beam among a mixed beam in which the cation beam and other species of a beam having a nuclide different from that of the cation beam are mixed after passing through a deflection magnetic field, after causing the mixed beam to pass through the deflection magnetic field, in a case where the other species of the beam is generated from the cation beam.

The invention provides a sea-finding laser radar data processing method and device for eliminating noise light interference. The method provided by the invention comprises the following steps: receiving scattered light of a mixed light beam, dividing the scattered light into mixed light and noise light, receiving a mixed light signal based on a first photomultiplier, and receiving a noise light signal based on a second photomultiplier; respectively calculating a mixed light intensity value and a noise light intensity value, and obtaining filtered signal light according to a difference value between the mixed light intensity value and the noise light intensity value; traversing each sampling point from far to near, calculating the ratio of the mixed light intensity value to the noise light intensity value to obtain the signal-to-clutter ratio, and taking the sampling point with the signal-to-clutter ratio of 1 as the farthest detection point; calculating an effective signal distance according to the farthest detection distance and the margin; and screening target signal light from the filtered signal light according to the effective signal distance. According to the sea-finding laser radar data processing method and device for eliminating noise light interference provided by the invention, sunlight noise and multiple scattered light of a water body can be effectively suppressed.

The invention relates to a modal method and geometric precision beam mixed three-dimensional large deformation monitoring method for a beam structure, belongs to the technical field of structure health monitoring, solves the problems of high generalized strain calculation complexity of the structure and too high requirement on the mounting position of a sensor in the prior art, and comprises the following steps: S1, initializing calculation; mathematical representation is carried out on the geometric configuration of the to-be-monitored beam structure, and a global coordinate system and a local coordinate system are established; s2, obtaining generalized strain of a beam center reference line of the to-be-monitored beam type structure based on a modal superposition method; s3, calculating a spatial position vector of a beam center reference line; s4, calculating a spatial position vector of any point on the to-be-monitored beam structure after deformation; and S5, outputting the obtained spatial position vector of the to-be-monitored beam structure after deformation as a monitoring result, and providing the monitoring result to a structure instability risk early warning program.

The present application provides a method and device for processing oceanographic laser radar data that eliminates noise light interference. The method provided in the present application: receives scattered light of a mixed light beam, divides the scattered light into mixed light and noise light, receives a mixed light signal based on a first photomultiplier tube, and receives a noise light signal based on a second photomultiplier tube; calculates the mixed light intensity value and the noise light intensity value respectively, and obtains filtered signal light according to the difference between the mixed light intensity value and the noise light intensity value; traverses each sampling point from far to near, calculates the ratio of the mixed light intensity value to the noise light intensity value to obtain a signal-to-noise ratio, and takes the sampling point with a signal-to-noise ratio of 1 as the farthest detection point; calculates the effective signal distance according to the farthest detection distance and the margin; and filters the target signal light from the filtered signal light according to the effective signal distance. The method and device for processing oceanographic laser radar data that eliminates noise light interference provided in the present application can effectively suppress sunlight noise and multiple scattered light from water bodies.

The present application relates to the technical field of laser radar, and more particularly to a multi-direction echo phase parallel mediation laser radar ranging system and method. The system comprises: a laser transmitter emits a laser beam, which is divided into a local oscillator beam and a probe beam by a beam splitter; a signal generator controls a phase modulator to generate a phase modulation signal to phase modulate the probe beam; an optical frequency comb generation unit generates an optical wave signal of an optical frequency comb for the probe beam, and inputs the optical wave signal into an optical circulator, which is then transmitted to a dispersion unit and receives a reflected echo beam from a target to be ranged; an optical fiber coupler mixes the local oscillator beam with the echo beam, converts the mixed beam into an electrical signal by a photodetector, and inputs the electrical signal into a filter unit to filter a specific frequency band wave signal and shield other frequency band wave signals; and a digital signal processing unit processes and analyzes the retained frequency band wave signal to calculate distance information between the system and the target to be ranged. The advantage is to improve the system detection speed.

The invention provides a light source, projection equipment, a vehicle-mounted display system and a vehicle, the light source comprises a laser emission unit, a fluorescence emission unit and a beam combiner, the laser emission unit is used for emitting a laser beam propagating along a first direction to the beam combiner, and the laser beam is in a first polarization state; the fluorescence emission unit is used for emitting fluorescence light beams propagating in the second direction to the beam combiner, and the fluorescence light beams comprise a first fluorescence light beam in a first polarization state and a second fluorescence light beam in a second polarization state; the beam combiner is used for receiving the laser beam and the fluorescent light beam and carrying out polarization beam combination on the laser beam and the second fluorescent light beam to obtain a first mixed light beam. A polarization light combination scheme is added into a laser and fluorescence mixed light source structure, so that a laser and fluorescence mixed scheme with low energy loss is realized.

The invention discloses an up-conversion detection system and method based on wavelength division multiplexing, a signal module outputs signal light, a pumping module outputs amplified light, an up-conversion module is arranged on a propagation path of the signal light and the amplified light, and the signal light and the amplified light are coupled through the up-conversion module, so that the signal light and the amplified light are detected. Performing sum frequency conversion on the coupled mixed light beam, and outputting sum frequency light; the loss of signal light is reduced, the utilization rate of the signal light is improved, and the up-conversion efficiency of the system is improved. At the moment, the measurement module is arranged on the emergent path of the sum frequency light, and the sum frequency light is detected by using the measurement module, so that the detection of a longer distance can be realized, and the measurement error can be reduced.

A LiDAR system that uses a MEMS-based scanning mirror that reflects pulsed light generated by a laser. The scanning mirror reflects the light through a lens system which collimates the light and allows its transmission to a digital micromirror device that steers the light to different locations corresponding to different orders towards an object to be detected. A photodiode, operational amplifier, timing chip and processing device then receive and process the light signal and generate a control sequence to synchronize timing of movement of the MEMS-based scanning mirror and the digital micro mirror device.

A solid-state light source projector includes a plurality of light sources for generating light of different colors, a first homogenizing device for dispersing the light of different colors to generate a plurality of scattered light beams, a first lens module for mixing the scattered light beams to generate a plurality of mixed light beams, a second homogenizing device for homogenizing the mixed light beams to generate a plurality of parallel light beams, a light collecting module for focusing the plurality of parallel light beams to generate a plurality of focused light beams, and a reflective module for reflecting the plurality of focused light beams to output uniform light beams. The light collecting module outputs the uniform light beams in parallel.

An apparatus for manufacturing a display device includes a chamber, a laser module including a plurality of laser generators which respectively generates a plurality of raw laser beams using a solid material as a medium, a beam coupling module which combines the plurality of raw laser beams into a plurality of coupling beams, a beam mixing unit which converts the plurality of coupling beams into a plurality of mixing beams, a micro smoother which induces vibration movements of the plurality of mixing beams, an optical module which converts the plurality of mixing beams passed through the micro smoother into a final laser beam, and directs the final laser beam to the chamber, and a seal box disposed between the optical module and the chamber.

The invention relates to the technical field of optical communication devices, in particular to a Z-Block assembly and an optical device. The Z-Block assembly further comprises a first prism, a second prism, a filtering assembly, a first reflecting part and a second reflecting part. The second prism is arranged on one side of the first prism in the first direction; the filtering assembly is arranged on one side of the first prism away from the second prism; the filtering assembly comprises a wave splitting filter plate group and a wave combining filter plate group which are arranged along a second direction; the distance between every two adjacent first filter discs is different from that between every two adjacent second filter discs; the first reflecting part is arranged between the first prism and the second prism, and the second reflecting part is arranged on the side, away from the first prism, of the second prism. The Z-Block assembly can perform bidirectional optical path transmission through the same common port, can adapt to different mixed light beam intervals of a transmitting end and a receiving end, and is higher in integration and more compact in structure.

This invention provides a multi-channel multiplexing / demultiplexing optical component, a multi-channel multiplexing / demultiplexing method, and optical devices, including a first optical component, a second optical component, and a third optical component arranged sequentially along a first direction. The first optical component realizes beam switching between a total mixed beam and multiple first-demultiplexed mixed beams. The second optical component is optically coupled to the first optical component to realize beam switching between an optical mixing group and multiple first-demultiplexed mixed beams. The optical mixing group includes multiple mixing subgroups, each including multiple second-demultiplexed mixed beams. The third optical component is optically coupled to the second optical component to realize beam switching between the optical mixing group and multiple target beams. The third optical component has a first port, a second port, and a third port. The first and second ports are both located at one end of the third optical component closer to the second optical component, and the third port is located at the other end. The first port is used to transmit the optical mixing group, and the second and third ports are used to transmit the target beams. This invention has small size, low insertion loss, and good optical performance.