47 results about "Beam delivery" patented technology

This invention provides a gas cluster ion beam apparatus capable of planarizing a material substrate by irradiating it with a neutral beam. A neutral gas introduction device (26) is provided for a vacuum container (2). By introducing neutral gas from the neutral gas introduction device (26), the gas cluster ion beam (11) traveling along the beamline in the beam delivery system (BT) collides with the neutral gas, undergoing dissociation and neutralization to form a high-energy neutral beam (25). Furthermore, a reflective electrode (28) is provided between an electrostatic lens (9b) and the material substrate (15), and a high voltage equal to the accelerating voltage is applied to the reflective electrode.

Aspects of this technical solution are directed to multiplexed transmission by optical beam transmission. A method can include generating a first beam having a first frequency in an optical frequency range, generating a second beam including data and having a second frequency in the optical frequency range, converting the first beam and the second beam into a third beam including the data and having a third frequency based on a difference between the first frequency and the second frequency, and transforming the third beam into a fourth beam having a first angular distribution and including a first portion of the data, and into a fifth beam having a second angular distribution corresponding to the first angular distribution and including a second portion of the data.

The application is suitable for the technical field of laser radar, and provides a laser radar, which comprises a light source, a transmitting module, a receiving module, a transmission module, a detecting module and a signal processing module; the transmission module comprises a first coupler and a plurality of transmission media, wherein the local oscillator beam is transmitted to at least one transmission medium for delay processing through the first coupler, and the delay amount of the at least one transmission medium is different from that of the other transmission media; the detecting module is connected with the transmission module and the receiving module respectively, is used for receiving the echo signal and the delayed local oscillator beam output by the transmission module, performing beat frequency processing on the echo signal and the delayed local oscillator beam to obtain a beat frequency signal, and converting the beat frequency signal into a detecting electric signal; and the signal processing module is electrically connected with the detecting module, is used for determining a to-be-measured object according to the detecting electric signal. The laser radar provided by the application can improve the strength of the detection signal in long-distance measurement.

A focal plane array system includes a plurality of pixels configured to output a first signal light beam and to receive a second signal light beam reflected from a target object. Each of the plurality of pixels includes a transmitter, a receiver, and an interference light beam controller that includes a splitter disposed on an emission path of the first signal light beam to split a portion of the first signal light beam into an interference light beam, a receiving coupler disposed on a receiving path of the second signal light beam reflected from the target object, and a waveguide configured to transport the interference light beam split from the splitter to the receiving coupler. The receiving coupler is configured to transport the second signal light beam reflected from the target object to the receiver and to combine the interference light beam with the second signal light beam.

The application provides a kind of sub-aperture mosaic spectral calibration detection device and its detection method, wherein the detection device includes: broadband light source, wavelength division multiplexing device, coupler, integrating sphere and spectrometer;Detection device is used to detect large aperture telescope system, and telescope system includes primary mirror and secondary mirror;Broadband light source is used to emit broadband light beam to wavelength division multiplexing device, and wavelength division multiplexing device is used to select the frequency band of broadband light beam, and the incident light beam is transmitted to the pupil of telescope system through coupler, and is incident to focal plane after being reflected twice in primary mirror and secondary mirror of telescope system, and integrating sphere is arranged at the focal plane of telescope system, and the outgoing light beam is transmitted to spectrometer by multimode optical fiber to obtain the actual measured spectral data T (i). The application selects spectrum by wavelength division multiplexing device, and the response generated by different spectrum, finally realizes the splicing detection of system through the cooperation of three domains of space domain, time domain and frequency domain.

An optical imaging system according to an embodiment disclosed in the present document may include: a laser module configured to radiate an ultrashort pulse laser beam; a microscope module configured to transmit the radiated ultrashort pulse laser beam to an eye of a subject and detect reflected light from the eye or (auto)fluorescence in the eye using an image sensor; a control module configured to generate a tau-related image in which a modification of tau proteins is detectable from the reflected light detected through the image sensor; and an output device configured to display the tau-related image.

A projection device includes an optical engine module, a projection lens module, a sensor and at least one processor is provided. The projection lens module is disposed on a transmission path of the image beam from the optical engine module and is configured to project the image beam out of the projection device. The projection lens module includes a projection lens and a lens adjustment module configured to adjust a position of the projection lens. The sensor is configured to sense an orientation status of the projection device. The at least one processor is coupled to the sensor and coupled to at least one of the optical engine module and the lens adjustment module. The at least one processor is configured to adjust a control signal provided to at least one of the optical engine module and the lens adjustment module according to the orientation status of the projection device.

A beam delivery system for particle therapy is provided, which when combined with an appropriate patient positioning system, can effectively replace the large and cumbersome gantry systems traditionally used in particle therapy for example for treatment of cancer or other diseased tissue conditions. The system's modular design enables scalability, making particle therapy more accessible and affordable for a broader range of healthcare facilities and patients.

This invention relates to a highly uniform optical waveguide structure, comprising a waveguide substrate, an imprinted adhesive layer disposed on the waveguide substrate, an integrally formed imprinted grating structure disposed on the imprinted adhesive layer, and a high-refractive-index dielectric layer disposed on the imprinted grating structure. The waveguide substrate is sequentially divided into a coupling-in region, a transition region, and a coupling-out region along the beam propagation path. The grating teeth of the imprinted grating structure located in the transition region and / or the coupling-out region are inserted into the high-refractive-index dielectric layer, and the refractive index of the high-refractive-index dielectric layer exceeds the refractive index of the imprinted grating structure. This invention solves the problem of low diffraction efficiency caused by the excessively low refractive index of the imprinted adhesive in optical waveguide structures fabricated by nanoimprinting, and has the advantages of improving the optical efficiency and uniformity of the optical waveguide structure.

This utility model discloses a high-precision testing instrument for small-sized glass, relating to the field of glass size testing technology. The instrument includes a worktable; the size testing component includes a connecting frame, with a first hydraulic rod fixedly connected inside the connecting frame, a gear frame fixedly connected to the output end of the first hydraulic rod, and a gear rotatably connected to the inner side of the gear frame; a rack is slidably connected to the upper right side of the connecting frame, a movable frame is bolted to the upper end of the rack, and a glass limiting frame is fixedly connected to the upper end of the movable frame; an "L"-shaped glass measuring ruler is fixedly connected to the upper end of the worktable. The first hydraulic rod drives the gear and rack transmission mechanism. Compared to the traditional technology requiring manual adjustment of the infrared rangefinder in each direction, this avoids the cumbersome step-by-step testing process, improving testing efficiency. Simultaneously, it accurately calculates distance through beam transmission time, and the data is directly synchronized to the display screen, reducing manual reading errors and improving testing accuracy.

This disclosure provides a laser therapy device and its control method. The laser therapy device includes: a beam transmission module, a handpiece, and a needle-free injector; one end of the handpiece is threadedly connected to the light outlet of the beam transmission module; the other end of the handpiece is threadedly connected to the needle-free injector; the handpiece is used to receive a first laser beam emitted from the beam transmission module, to shape and focus the first laser beam, and to change the optical parameters of the first laser beam; the needle-free injector is used to receive a second laser beam emitted from the handpiece to drive the injection of a drug solution into the patient's skin tissue. This disclosure achieves a rotary connection by threading the beam transmission module, handpiece, and needle-free injector, resulting in a simple structure and minimalist appearance for the laser therapy device, making it convenient for the operator to use.

The present application belongs to the technical field of spectral analysis optical instrument, disclose a kind of monochromator of controllable output light beam and programmable control method, to solve the problem of slow response, low precision, poor flexibility of existing monochromator relying on mechanical adjustment.The monochromator includes incident optical unit, spectrometer unit, imaging coupling unit and programmable control output unit arranged in order along the direction of light beam transmission;Incident optical unit is used to input matched polychromatic light beam, spectrometer unit is used to disperse polychromatic light into spatially separated monochromatic light beam, imaging coupling unit is used to focus and couple different wavelength light beam to corresponding light beam channel, and programmable control output unit is used to control the on-off, power and timing of each fiber channel independently.The present application has no mechanical moving parts, and can realize programmable output of monochromatic light with specific wavelength, specific power and specific timing, with fast response speed, high precision and high integration.

The application provides a surface topography measuring device and method, and an object surface height calculation method, and applies to the technical field of optical precision measurement, and comprises a fiber F-P interference measuring head and a three-dimensional displacement table; the fiber F-P interference measuring head is composed of a fiber head array and a microlens array, and an object to be measured is fixed on the three-dimensional displacement table; a light beam is transmitted to the fiber F-P interference measuring head, is emitted from an exit surface of the microlens array after passing through the fiber head array and the microlens array, and is collimated and irradiated to the surface of the object to be measured; and the three-dimensional displacement table drives the object to be measured to perform three-dimensional movement to measure the surface topography of the object to be measured. Through the scanning measurement scheme of the combination of the fiber head array and the microlens array and the three-dimensional displacement table, the problems of small measurement range and slow measurement speed of the fiber F-P interference measuring head are solved, the measurement range and the measurement speed of the fiber F-P interference surface topography detection product are improved, and the cost thereof is reduced.

This invention relates to the field of laser surface engineering technology, specifically to a laser irradiation-induced coating cracking device and method. The device includes a laser generation and output unit, a beam transmission and dynamic focusing unit, an online monitoring and feedback unit, and a central control unit. In this invention, by collecting crack morphology data and thermophysical parameters of the coating surface, a repair mode or a prevention mode is intelligently switched. In repair mode, the beam is controlled to perform low-power defocus scanning along both sides of the crack to construct a preheating relaxation zone, followed by high-power focusing scanning along the crack center to induce dense remelting. In prevention mode, a grid-like laser shock treatment is performed to construct a compressive stress layer. By utilizing infrared and visual dual feedback to correct the laser output energy in real time, active control of coating stress and non-destructive healing of defects are achieved, solving the problem of coating peeling and thermal damage easily caused by traditional thermal repair, and improving the structural integrity and service life of precision coated components.

This invention provides an optical adjustment device, including an optical platform and a light source generator, three mirrors, and a collimator, which are sequentially fixed to the optical platform along the optical path. Each mirror includes a mirror body and a lens. A groove is formed from top to bottom on the upper part of the mirror body, dividing the upper part of the mirror body into a front side and a rear side. The lens is disposed on the front side of the mirror, and the bottom end of the front side is connected to the rear side. By adjusting the position of the front side of the mirror relative to the rear side, the pitch angle of the optical path can be adjusted. This invention also proposes a light source generation system based on the above-mentioned optical adjustment device. This invention adjusts the laser beam's deflection and pitch angle through the cooperation of the mirrors, allowing the beam to be transmitted to the center of the collimator, effectively reducing the collimator adjustment dimension. Simultaneously, it relies on external force to drive the elastic deformation of the mirror structure for adjustment. The structure is simple, the operation is convenient, and the optical path can remain stable for a long time after adjustment.

This invention discloses a simplified U-shaped beam inverter, relating to the field of high-power laser technology. It includes a collimating lens (102), a right-angle mirror, an electro-optic switch (105), and a focusing lens (106). The right-angle mirror consists only of a first reflecting mirror surface (103) and a second reflecting mirror surface (104) that are perpendicular to each other, both of which form a 45° angle with the beam transmission direction. The entire right-angle mirror is rotated 45° about the beam transmission direction to simultaneously achieve a 90° symmetrical rotation of the near-field wavefront and polarization state of the beam. The beam inverter is placed directly behind the filter aperture array plate (101), eliminating the need for additional reflecting mirrors or wedge mirrors to guide the beam into and out of the main optical path. By rotating the entire right-angle mirror by 45°, this invention enables a simplified structure with only two reflecting surfaces to have wavefront rotation functionality. This allows the entire inverter module to be directly integrated into a sealed optical path, significantly simplifying the structure, reducing the number of optical components, improving system cleanliness and damage resistance while maintaining functional integrity. It is suitable for high-power laser amplification systems.

This application provides a measurement apparatus and method capable of accurately measuring the phase of an LCOS in a communication band. The apparatus includes: a polarization conversion device, a first lens, a beam splitter, an objective lens, and a second lens. The polarization conversion device acquires an input coherent beam and converts the polarization direction of the coherent beam to the polarization direction of the LCOS under test, generating a first beam. The first lens transmits the first beam to the beam splitter. The beam splitter transmits the first beam to the objective lens and transmits the interference beam from the objective lens to the second lens. The objective lens transmits the first beam to the LCOS under test and transmits the interference beam from the LCOS under test to the beam splitter, wherein the interference beam is generated by the LCOS under test based on the first beam emitted from the objective lens. The second lens transmits the interference beam emitted from the beam splitter to a detector, so that the detector measures the phase of the LCOS under test based on the interference beam.

Various aspects of the present disclosure relate to inserting beam switching gaps between beam transmissions. A network equipment (NE) is configured to determine a number of empty symbols to insert between contiguous transmissions to a user equipment (UE) based on a subcarrier spacing, wherein the contiguous transmissions are scheduled on different beams; insert the determined number of empty symbols as a gap between the contiguous transmissions; and indicate the number of empty symbols to the UE.

The application discloses a kind of anisotropic compressible turbulent light beam transmission scintillation index simulation method, belong to optical transmission and turbulent effect analysis technical field.The present application is aimed at the problems existing in prior art, by introducing anisotropic factor to characterize the distortion degree of turbulent vortex perpendicular to the propagation direction, based on Boltzmann factor equation modified compressible turbulent spectrum to construct anisotropic refractive index power spectrum;Weak fluctuation and strong fluctuation condition are established by Rytov theory and modified Rytov theory respectively to establish the scintillation index analytical model of Gaussian beam transmission;The influence law of each parameter on scintillation index is analyzed by numerical simulation.The application can accurately describe the light beam transmission characteristics in anisotropic compressible turbulent flow, reveals the regulation of anisotropic factor in weak fluctuation condition to inhibit scintillation and in strong fluctuation condition to delay scintillation saturation, and provides a theoretical basis for optical imaging and communication system design of high-speed target in compressible turbulent environment.

The present application belongs to the field of spectral analysis, and discloses a kind of annular capillary photometer.Light source and photoelectric detector are respectively arranged at the entrance and exit of straight capillary;The bending part of annular capillary adopts folding structure to reduce the reflection times of tube wall and transmission loss;Straight capillary and annular capillary are coupled with each other through mirror;The detection light beam emitted by light source enters annular capillary through straight capillary, and experiences multiple cycle transmission in it, and finally shoots out from another straight capillary;Light source can adopt wide spectrum light source, and its spectral range covers the absorption spectrum of the measured object.The annular capillary photometer of the present application does not need to accurately control the transmission trajectory of light beam, does not need fine parallel light beam, and also does not need to use multiple lasers to test multiple substances, which greatly reduces the cost of instrument;At the same time, by using the multiple cycle propagation of light beam in annular capillary, the optical path is greatly increased, and the transmission loss is reduced, so that the instrument has small size and high sensitivity.

This application relates to an optical path detection device and a biochemical analyzer. The optical path detection device includes a light source module and a detection module. The light source module includes a light source assembly and a beam splitter assembly. The detection module includes at least two detection channels. The light beam generated by the light source assembly is transmitted to the beam splitter assembly, which divides the received light beam into at least two sub-beams and transmits each sub-beam to at least two detection channels. The at least two detection channels detect the sample to be tested using the received at least two sub-beams. The optical path detection device provided by this application has low hardware and maintenance costs.

The application relates to a low-dielectric-constant-material slotting system and method based on a spatial light modulator, which comprises a laser, a liquid crystal spatial light modulator, an optical path transmission system and a workbench; the laser is used for emitting a laser beam; the optical path transmission system transmits a main machining light beam to the liquid crystal spatial light modulator for shaping, outputs and focuses the shaped laser beam on the surface of a machined material on the workbench, sequentially forms double-fine-line light spots and multiple strip light spots to successively machine the surface of the machined material, and the energy and the focal plane position are both in a stepped distribution, so that grooves are finally formed on the surface of the machined material. The double-fine-line grooves formed by double-fine-line light spots can effectively isolate the thermal influence of subsequent multiple strip light spot etching, ensure the slotting precision, the spatial light modulator has high diffraction efficiency, greatly improves the energy utilization rate, and the spatial light modulator is flexible in modulation and can flexibly switch the double-fine-line and multiple strip light spots and the width and quantity of the multiple strip light spots according to different requirements.

An optical module (100) and a near-eye display device (200) comprising the optical module (100). The optical module (100) comprises a waveguide substrate (10), a coupling-in grating (20), a first collimating element (30), a second collimating element (40) and a coupling-out grating (50). A light beam emitted from the first collimating element (30) is reflected by the second collimating element (40); a light beam emitted from the second collimating element (40) is transmitted to the first collimating element (30), then coupled into the waveguide substrate (10) by means of the coupling-in grating (20), and transmitted in the waveguide substrate (10); the first collimating element (30) and the second collimating element (40) are used for collimating light beams.

Provided is a novel beam delivery system comprising an optical beam spatial period converter. The converter comprises a substrate comprising two or more flexures coupled in series; a plurality of first spacing reflective elements and a plurality of second spacing reflective elements disposed on surface of the substrate. Each first spacing reflective element is configured to receive a respective incoming beam of an incoming array of beams and redirect the respective incoming beam to provide an intermediate beam to a respective second spacing reflective element. Each second spacing reflective element is configured to receive a respective intermediate beam and redirect the respective intermediate beam to provide a respective outgoing beam. The respective outgoing beam is one of plurality of outgoing beams that form an outgoing array of beams. The outgoing array of beams and the incoming array of beams have a different spatial frequencies.

This invention discloses a digital twin experimental system and testing method for dynamic target firing using high-repetition-rate lasers. The system includes a high-fidelity multiphysics model cluster, a virtual diagnostic module, a data-driven interface, a simulation engine and scheduler, and a visualization and analysis platform. The model cluster includes a target flight dynamics model, a beam transmission and control model, and a beam-target interaction physical model. The data-driven interface supports bidirectional data interaction between the digital twin system and the physical target firing system. The virtual diagnostic module outputs simulation data comparable to that of the physical system. This invention possesses system-level simulation capabilities that integrate the entire chain of "target injection – trajectory measurement – ​​beam control – interaction – physical results," and can be used for virtual testing of control strategies, performance prediction of novel target components, system fault prediction and health management, significantly reducing experimental costs and risks, and accelerating research and development iterations.

To enable increasing the intensity of an optical beam without the need for a beam reference plate. [Solution] The optical beam transmitting device 2 includes an optical distribution unit 11 that distributes the laser light output from the laser light source 1 to N (where N is an integer of 2 or more) + 1 transmission lines, a frequency shift unit 12 that shifts the frequency of the laser light that has passed through the N transmission lines, and a beam conversion unit 14 that converts the N laser beams into transmission beams parallel to each other and converts the laser light that has passed through the remaining 1 transmission line into a local beam parallel to the transmission beams, as well as an optical demultiplexing unit 15 that radiates a portion of the N transmission beams into space, reflects the remaining N transmission beams as a phase detection beam, and also reflects the local beam, and a control unit 16 that detects the frequency difference between the frequency of the phase detection beam after reflection by the optical demultiplexing unit and the frequency of the local beam after reflection by the optical demultiplexing unit, and controls the amount of frequency shift based on the frequency difference.

This disclosure provides a beam delivery method, apparatus, electronic device, and medium. The method includes: dividing the cross-sectional shape of a target area into several equally spaced scanning points; delivering the same dose of particles to each scanning point based on a point-by-point active position delivery method, forming a uniform beam field distributed in a plane perpendicular to the beam direction. The shape of the uniformly distributed beam field is consistent with the shape of the target area and covers the entire target area. The depth, Bragg peak broadening, and penumbra of the uniformly distributed beam field are adjusted using a beam modulation module, and the adjusted uniformly distributed beam is delivered to the target area. This method reduces beam waste, increases beam utilization, shortens treatment time, reduces secondary radiation and induced radioactivity, and effectively reduces positional and dose deviations caused by organ movement.