13 results about "Mixed beam" patented technology

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 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.

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 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.

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.

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.

Method for determining an ionizing radiation dose rate and associated dosimetry system This description relates to a method for determining (200) a dose rate (15) of ionizing radiation received by a dosimeter, the method of determination comprising: - a measurement step (202), by the dosimeter, of a mixed beam (10) of ionizing radiation in order to generate a mixed spectrum (11); - a spectral deconvolution step (204), by a processing unit connected to the dosimeter, of the mixed spectrum into elementary spectra (21) from measurements, by the dosimeter, of reference beams (20) of ionizing radiation; - a determination step (206), by the processing unit, of elementary dose rates (25), from the elementary spectra and calibration coefficients (22) associated with the reference beams;and- a determination step (208), by the treatment unit, of the dose rate from the elementary dose rates. Figure for the abstract: Fig. 2;