151 results about "Beam size" patented technology

A method of making a vacuum insulating panel, the vacuum insulating panel including a first glass substrate, a second glass substrate, a plurality of spacers provided in a gap between at least the first and second glass substrates, and a seal provided between at least the first and second glass substrates, the seal comprising a first seal layer. The method may include: providing first seal material for the first seal layer in a location at least partially between at least the first and second glass substrates; laser heating, using a laser beam from a continuous wave near-IR laser, the first seal material in order to form the first seal layer; wherein said laser heating may comprise using the laser beam, having a size of from about 2-15 mm, so that the laser beam at least partially passes through at least one of the glass substrates to fire and / or sinter the first seal material thereby forming the first seal layer, in a manner so that the first seal layer a density of from about 2.8-4.0 g / cm3; and after forming the first seal layer, evacuating the gap to a pressure less than atmospheric pressure.

The invention relates to the technical field of medium and small span bridge construction and control, in particular to a precast beam size matching method and system based on a three-dimensional laser scanner, and the method comprises the steps: obtaining precast beam point cloud data, carrying out the preprocessing of the precast beam point cloud data, carrying out the registration of the preprocessed precast beam point cloud data with a BIM model, and obtaining the size of a precast beam. The automatic detection of the structure size is realized; then, by obtaining interface angular points of the precast beams, conducting virtual splicing by aligning the cross section angular points of the adjacent precast beams, simulating the field splicing process and obtaining key construction details, accurate and reliable data support is provided for follow-up construction, it is ensured that each beam section can conform to design specifications during splicing, and therefore potential safety hazards are reduced; the controllability and scientificity of the construction process are improved, the construction efficiency is improved, the construction period is shortened, the service life of the bridge structure is prolonged, and the structural reliability is improved. The problems of low precast beam parameter detection efficiency, high operation difficulty and low accuracy in the prior art are solved.

A luminaire includes a light source configured to generate an emitted light beam, and a beam reducer configured to move between a first position and a second position. In the first position, the beam reducer is outside the emitted light beam, and in the second position, the beam reducer receives the emitted light beam and occludes an outer portion of the emitted light beam to emit a reduced light beam having a smaller beam angle than the emitted light beam. The luminaire also includes a beam size iris configured to receive (i) the emitted light beam when the beam reducer is in the first position and (ii) the reduced light beam when the beam reducer is in the second position. The beam reducer is configured to move to the second position in response to an aperture of the beam size iris being smaller than a predetermined threshold value.

An electron beam size measuring device (100) and measuring method. The electron beam size measuring device (100) comprises an electron beam source (110), an anode target (120), a driving device (140), and a detection device (130). The electron beam source (110) is used for emitting an electron beam. The anode target (120) comprises a bombardment surface (121) for receiving the electron beam, and the bombardment surface (121) comprises a first material surface (1211) and a second material surface (1212) arranged side by side. The driving device (140) is connected to the electron beam source (110) and / or the anode target (120) and is used for driving the electron beam source (110) and / or the anode target (120) to make relative movement, so that the electron beam scans the first material surface (1211) and the second material surface (1212). The detection device (130) is used for detecting a signal generated after the bombardment surface (121) is bombarded by the electron beam, and the signal is used for determining the size of the electron beam.

The embodiment of the invention provides a particle source assembly and particle beam equipment, relates to the technical field of charged particle beam processing and detection equipment, and is used for improving the degree of freedom of beam state adjustment of charged particle beams. The particle source assembly comprises a particle source, an adjustable diaphragm and a collimating lens device which are arranged along a first direction. Wherein the particle source is used for generating a charged particle beam which is emitted towards the adjustable diaphragm along a first direction; the adjustable diaphragm is positioned in a transmission path of the charged particle beam, and the size of a diaphragm hole is adjustable, so that the beam size of the charged particle beam is adjusted; the collimating lens device is used for collimating the charged particle beam emitted from the adjustable diaphragm, and the position of the collimating main plane in the first direction is adjustable. The particle source assembly can be applied to particle beam equipment.

The utility model discloses a light feeding instrument to solve the problem that retina light damage is possibly caused after long-term use in the prior art, and meanwhile, the treatment effect is also improved. Compared with the prior art in which only parameters such as red light source power and emergent light beam size are concerned, the utility model focuses on the important index of irradiance (power density), emergent light is a collimated Gaussian beam and the optical characteristics of eyes (a human eye refraction system is equivalent to a convex lens with a focal length of 17.2 mm). An optical component diffuser is additionally arranged at the position close to the cornea of a user, so that a collimated Gaussian beam is converted into diffused light to enter the eyes of the user, and diffused light spots are formed on the retina, the treatment area is sufficient, energy distribution is uniform, it is ensured that the irradiance is at the expected safety magnitude, and meanwhile the actual treatment effect is ensured.

A computer-implemented method for optimizing a video encoder. The method includes the step of defining a plurality of CUs of the video encoder that correspond to a plurality of stages. The plurality of stages includes at least a first stage, and a second stage immediately after the first stage. The method further includes the steps of providing a decision space of encoding parameters of the video encoder, and defining, for the second stage, a subspace being a subset of the decision space. The subspace contains b1 optimal decision paths from the first stage to the second stage, wherein b1 is defined as a beam size for the first stage. The b1 optimal decision paths are the b1 decision paths that have lowest accumulated cost among all decision paths from the first stage to the second stage.

The utility model discloses a waveguide light energy transmission detection device, and the device comprises an optical machine which is used for emitting a first light beam; the first diaphragm is used for reducing the spot size of the first light beam and forming a second light beam to be projected to the coupling-in area; the light energy detection module is used for detecting light beam energy of the second light beam coupled into the waveguide and light beam energy of the third light beam coupled out of the coupling-out area. The first diaphragm is arranged at the light emitting position of the light machine to reduce the size of the light beam emitted by the light machine, so that when the exit pupil size of the light machine is not matched with the size of the coupling-in area, the second light beam projected to the coupling-in area can cover the coupling-in area after being processed; therefore, by detecting the light beam energy of the second light beam coupled into the waveguide and the light beam energy of the third light beam coupled out of the area, compatibility of optical performance detection of different waveguides can be achieved, and the detection cost of the waveguide is reduced.

The invention relates to an X-beam collimator for a crystal diffraction experiment. A main body of the X-beam collimator is of a stepped structure comprising an upper end thin part and a lower end thick part; the fixing hole is formed in the upper end thin part of the main body and is fixedly connected with an external driving motor to drive the main body to move; the loading hole is formed in the thick part of the lower end of the main body and is a cylindrical blind hole; the light beam control piece is of a cylindrical structure and is made of platinum iridium alloy, a small round hole is formed in the center of the light beam control piece, and the light beam control piece is installed in the loading hole in a matched mode. The light-transmitting hole is formed in the bottom of the loading hole, the axis of the light-transmitting hole is collinear with the light path axis of the coaxial microscope and the diffractometer, and the light-transmitting hole is used for allowing the X beams screened by the small hole to pass through. The fixing holes are fixedly connected with the motor, so that the motor can drive the main body to move; light beam control sheets with different light beam size control capabilities are loaded through the loading holes; the X-ray beam passes through the collimator through the light hole, the structure is simple, the size and the mass are small, and rapid collimation and size control of the X-ray beam can be achieved.

This application relates to the technical field of suspended monorail rail transit. Specifically, it relates to a support connection device and a support connection method for a suspended monorail track beam. The support connection device includes: a track beam and a support part, and the track beam is suspended and connected below the support part; the support part and the track beam are connected through a crossbeam structure, and the crossbeam structure is arranged along the running direction; the support connection device and the support connection method of this application can effectively use a longer track beam size under the same mass, or reduce the weight of the track beam under the same length, and can reduce the quantity requirements for support columns, etc., save land area, and reduce the installation difficulty.

The present subject matter provides a high-speed nanopatterning method and apparatus of two-color super-resolution photolithography. According to the present subject matter, a high-speed nanopatterning apparatus of two-color super-resolution photolithography comprises: a first light source for outputting photochemical reaction initiation light of a first wavelength causing a photochemical reaction to occur in an illuminated area of a photoresist; a first lens for enlarging a beam size of the photochemical reaction initiation light; a second light source for outputting inhibition light of a second wavelength suppressing the photochemical reaction in the illuminated area of the photoresist; a second lens for enlarging a beam size of the inhibition light; and a digital micromirror device including a plurality of micromirrors controlled at a first angle and a second angle and for reflecting a portion of the photochemical reaction initiation light output from the first light source or the inhibition light output from the second light source toward the photoresist through the plurality of micromirrors.

Devices, systems and methods related to all-reflective microscopes are described. The microscopes include an all-reflective off-axis optical system and is characterized with substantially zero chromatic aberration, low group delay dispersion and no central obscuration. One reflective microscope configuration includes a reflective objective subsection with at least three mirrors, where at least one mirror is off-axis and non-spherical. The reflective microscope also includes a reflective relay subsection with at least two minors having freeform surfaces and positioned to receive light from the reflective objective subsection. The reflective relay subsystem is configured to produce a magnification to allow coupling of light between two planes having differing beam sizes. The reflective microscope further includes an imaging subsection with at least one mirror having a freeform surface and positioned to receive light from the reflective relay subsection and to direct light received thereon in reflection in a direction of a sensor.

The invention discloses a vortex beam orbital angular momentum detection device and method based on a well-shaped line structure. The device sequentially comprises a well-shaped line structure and a focusing lens in the light path direction. A vortex light beam enters the well-shaped line structure to be diffracted, the focusing lens converges the vortex light beam to a focal plane, and a characteristic diffraction pattern related to a topological charge value is formed. The well-shaped line structure is composed of two groups of parallel line pairs which are mutually orthogonal, and the line width and the line spacing can be optimally designed according to the working wavelength and the light beam size. The core of the invention lies in that the well-shaped line structure is utilized to replace a traditional small-hole diaphragm, so that interfering secondary diffraction light spots in a far-field diffraction pattern are thoroughly eliminated, diffraction main light spots related to topological charges are clearly presented, and most (more than 64%) incident light energy is concentrated; and the availability and reliability of the method are improved to a great extent. The device is simple in structure and convenient to adjust, the reliable detection range of the orbital angular momentum is remarkably improved to 30 orders or above, and the device is particularly suitable for detection of weak-intensity vortex light beams and has great significance in promoting development of the free space optical communication technology.

The present application relates to the technical field of accelerator beam measurement, and particularly discloses a water gravity type inner target beam measurement device, which comprises a beam measurement assembly, a gravity adjustable cooling assembly, a lever balance assembly and a limiting piece, the beam measurement assembly is connected to one end of the lever balance assembly through the gravity adjustable cooling assembly, and the limiting piece is arranged on the side surface of the lever balance assembly. The device adopts a seesaw type structure, fully utilizes the installation space in the cyclotron shell, utilizes the gravity of the cooling liquid as the power of the seesaw type structure, can omit the arrangement of a complex power driving piece, is small in size, simple in structure, low in cost, good in cooling effect, and stable in the beam size of the inner target measurement piece during measurement.

The embodiment of the invention discloses a method and device for determining material consumption and waste output of a foundation pit supporting beam, and the method comprises the steps: opening or creating a three-dimensional building information model comprising a foundation pit model and a supporting member model in target building model software; obtaining three-dimensional model information, supporting beam related parameters, foundation pit elements and supporting component elements from the three-dimensional building information model, and determining a generation range of a foundation pit supporting beam; determining modeling positioning information of the supporting beams based on the generation range of the foundation pit supporting beams and the setting spacing of the supporting beams; generating a supporting beam model within the generation range of the foundation pit supporting beam based on the modeling positioning information of the supporting beam, the supporting beam size parameters and the supporting beam reinforcement information; and determining the concrete consumption, the steel bar quality and the waste generation amount based on the support beam model and the reinforcement information. According to the embodiment of the invention, the concrete consumption, the steel bar quality and the waste generation amount of the foundation pit supporting beam can be accurately determined.

This invention relates to a welding temperature gradient control method and apparatus based on neutron source residual stress detection, belonging to the field of welding control technology. This technology establishes a correlation between laser power, beam size, scanning rate, metal type, and temperature by constructing a temperature field data acquisition module and a heating and cooling module for the welding process, and by using laser-assisted local heating and forced substrate cooling devices. It develops a temperature gradient control method to achieve online physical simulation of the temperature gradient between the welding zone and the substrate, solving the problem of mismatch between the welding cooling rate and the neutron data acquisition rate, and realizing in-situ online testing of the stress field near welding conditions.

The present invention discloses a design method for a mask capable of rotating a light beam parallel to the optical axis. The present invention proposes a light beam that can be rotated parallel to the optical axis. By segmenting the shaped light beam and separately modulating additional Fourier phase shifts, and then superimposing them to obtain the hologram transmittance function of the light beam, combining the hologram transmittance function and a blazed grating, a mask capable of rotating a light beam parallel to the optical axis can be obtained. Using this mask, a light beam that can be rotated parallel to the optical axis can be generated. The rotation angle, beam size, and rotation radius of the light beam generated by this technology can all be arbitrarily modulated, thereby realizing longitudinal micro-manipulation of particles. This technology solves the problem that structured light beams cannot achieve longitudinal micro-manipulation of particles, and theoretically can endow structured light beams with the ability to support multi-particle longitudinal micro-manipulation in three-dimensional space. This technology is easy to operate and use, providing great potential for the future development of structured optical tweezers.

The invention relates to a gear steel surface treatment method based on electron beam pre-scanning. The method comprises the steps that a moving heat source model is established; setting at least two electron beams, planning a moving path for each electron beam, and setting scanning process parameters (beam size, acceleration voltage, moving speed and the like); simulating the action of the scanning electron beam and the gear / gear steel matrix under the parameters, and obtaining a simulation result set; the electron beam actually acts on the gear / gear steel surface according to the set parameters based on the simulation result, and an actual result set is obtained; and the gear / gear steel obtained after electron beam scanning pretreatment is subjected to carburizing treatment, a plurality of first treatment results are obtained, meanwhile, gear steel which is not pretreated is subjected to carburizing treatment, a second treatment result is obtained, and the first treatment results and the second treatment result are analyzed and compared. A plurality of electron beams are arranged, the scanning beams of the electron beams are different, other conditions are not changed, and then the target (optimal) beam intensity of the electron beams is obtained.

The present invention relates to a laser beam splitting processing device, comprising a laser, a beam expansion device, a reflector, a spatial light modulator, a focusing lens, a beam splitting array module, a collimating lens module, a reflector array module and an F-Theta lens arranged in sequence. A laser beam splitting processing method of the present invention utilizes a spatial light modulator to generate multiple focal points, and at the same time, separates the multi-focal array in space through an innovatively designed micro-reflector array, thereby solving the problem that the diffraction angle of the spatial light modulator is small and the spacing of the generated beams is small. By placing a single lens on the path of each focus, it is ensured that the beam size will not increase as the beam spacing is enlarged while multiple beams are split at large spacing, and the size of the beam finally converged on the sample to be processed can be flexibly customized.

The invention relates to an ion implanter device based on a radio frequency ion source, and belongs to the technical field of ion implantation. The device is composed of an ion source part, a vacuum chamber part and a target chamber part. The radio frequency ion source is simple and compact in structure, the grid electrode is fed into the target chamber, the beam size can be monitored online in real time, the concentration of injected ions is accurate and controllable, on the other hand, the gate valve is used for isolating the vacuum chamber from the target chamber, the air exhaust time after sample replacement is shortened, rapid starting can be achieved, and the detection efficiency is improved. And a good technical basis is provided for the field of ion implantation.

The present invention discloses an Airy two-photon microscopy imaging method and device with global enhanced aberration correction, belonging to the technical field of biological imaging. The imaging method includes the following steps: S1. Expand the laser beam through a laser beam expansion module to ensure that the laser illumination beam meets the beam size requirements for subsequent modulation; S2. Generate an Airy beam and perform wavefront correction through an AO correction module; S3. Split and combine two beams through a beam splitting and combining module; S4. Drive the beam to scan the entire sample through a beam scanning module; S5. Collect the sample signal through a fluorescence collection module. By adopting the above-mentioned Airy two-photon microscopy imaging method and device with global enhanced aberration correction, the present invention simultaneously realizes the generation of an Airy beam and real-time aberration correction through a single spatial light modulator, improves the imaging resolution of the two-photon imaging device, and helps to observe more detailed tissue information in in vivo imaging applications.

The present application discloses a method, device, equipment and storage medium for detecting the size of an electron beam, wherein the method comprises: dividing the cross section where the electron beam exists into a measurement area with I rows and J columns; detecting the electron beam by a non-intercepting detector and obtaining multiple sets of current detection data; solving each unit C of the measurement area by establishing an equation matrix for the multiple sets of current detection data ij The beam intensity I ij According to each of the units C ij The beam intensity I ij A distribution curve is fitted to obtain the cross-sectional distribution size of the beam current intensity of the electron beam. The electron beam current size detection method of the present invention detects the beam current intensity of the electron beam by using a non-intercepting detector, which will not affect the normal operation of the electron beam. Moreover, the electron beam current size detection method of the present invention only needs to detect the electron beam once to obtain the lateral size of the electron beam current.

The invention relates to the field of atomic interference measurement, in particular to an atomic Raman interferometer based on a flat-topped beam. Comprising two Raman interference subsystems arranged in parallel, each of the two Raman interference subsystems comprises an ultrahigh vacuum cavity and a light path system, and the light path system comprises a flat-topped beam shaping module located on one side of the high vacuum cavity and a Raman light Doppler sensitive configuration module located on the other side of the high vacuum cavity; in the flat-topped beam shaping module, the holographic algorithm principle is adopted, the actual size of atoms in an interference area is combined to determine the size of a target flat-topped beam, the initial complex amplitude is precisely constrained, and a final diffraction phase is obtained through iterative optimization. After the Raman light passes through the diffraction phase, the Raman light is shaped into a flat-topped light beam with a target size and uniform intensity distribution at the ultrahigh vacuum cavity, so that the coherence efficiency under the same interference time is remarkably improved.

This invention discloses a device and method for real-time thermal focal length measurement of a long-pulse LDA side-pump module. The device includes a detector source, a beam expander system, an LDA side-pump module, a knife edge, an energy meter, and a signal generator. The detector source serves as the detection light source for thermal focal length measurement; the beam expander system serves as a beam expander for the detector source size; the LDA side-pump module serves as a heat source generator to achieve high peak power pump injection under long-pulse pumping; the knife edge is placed on both sides of the beam waist position after the detector source passes through the LDA side-pump module to cut the transverse and longitudinal beams, achieving beam size characterization; the energy meter is placed in the rear region of the measurement device to acquire the energy measurement of the detector source; and the signal generator serves as a timing control part to achieve timing synchronization between the detector source and the LDA side-pump module. This invention uses timing synchronization combined with Gaussian beam transmission transformation to obtain the thermal focal length value of the long-pulse LDA side-pump, which has the advantages of simple structure, ease of operation, and high measurement accuracy.

The present application relates to a device and method for simulating far-field to target laser parameters, which includes: a laser emission system; a spot adjustment system, which is used to adjust the spot shape and beam size of the laser beam emitted by the laser emission system and to control the laser beam jitter; an incident angle adjustment system, which is used to drive the spot adjustment system to rotate around the laser irradiation point to adjust the incident angle of the laser beam output by the spot adjustment system to reach the target target impact point. The present invention can simulate the target laser parameters such as the spot size, spot morphology, laser incident angle and jitter state of the target surface in the external field long-distance transmission, realize the simulation of the external field target irradiation process, collect laser damage data in a near-real environment, and obtain key damage data, which can provide important support for the demonstration of laser equipment indicators and system development.

A teaching device includes: a model data acquisition unit that acquires an object model; an input receiving unit that receives input of an interference detection condition for detecting interference between a virtual laser beam and the object model in a virtual laser machining operation in which the virtual laser beam is simulatively irradiated at a machining location; and an interference detection unit that detects interference occurring in the virtual laser machining operation on the basis of the received interference detection condition. The interference detection condition includes a beam size of the virtual laser beam, or an invalid region set in the object model for invalidating the interference detection.

A vehicle lighting system comprising: a light source for generating illumination, a liquid lens optically aligned with the light source to receive the illumination and generate an output beam, and a controller configured to regulate the electrical power supplied to the liquid lens. The controller applies a first voltage to the liquid lens to generate a first output beam with a first beam size, and applies a second voltage to the liquid lens to generate a second output beam with a second beam size.

Beam monitors, methods of use and fabrication are provided herein. Beam monitors can include a rounded beam cavity with one or more waveguide connected thereto, from which a signal can be used to determine one or more beam characteristics. Such monitors can include a beam intensity monitor that includes a cylindrical beam cavity with a rectangular waveguide extending from a periphery, from which beam intensity can be determined. An advanced beam monitor can include a multi-moded beam cavity having multiple waveguides connected at distinct locations, each corresponding to a differing excitation mode. Such monitor can include an elliptical beam cavity and five waveguides connected thereto, signals from which can be used to determine beam charge, beam position and beam size in both the x-direction and y-directions. Beam monitors can be stand-alone devices or integrated within linear accelerators. Accelerators can include off-axis beam monitor coupling ports and on-axis tuning features.

The invention discloses an instrument beam size compensation method, device and equipment and a computer readable storage medium, and the instrument beam size compensation method comprises the steps: based on simulation software, obtaining displacement variations of a mounting point of a vertical section after deformation in a gravity state relative to a mounting point of a vertical section in a theoretical state along an X axis and a Z axis; and performing corresponding displacement size compensation on the theoretical state vertical section and the theoretical state transverse section according to the two displacement variations. By means of the size compensation method, the problem of appearance clearance surface difference caused by the gravity effect of the instrument board can be effectively solved, the appearance size of the instrument board is more consistent and attractive, compared with a traditional mold repairing method, the size compensation method avoids complex processes and expensive materials, the mold repairing cost is remarkably reduced, and meanwhile the mold repairing efficiency is improved. Due to the fact that the tedious die repairing process is omitted, the product development period is greatly shortened, and the overall efficiency is improved.

The invention belongs to the technical field of building formworks, and particularly relates to an aluminum formwork system lower forming steel reinforcement framework system and a construction method thereof.The aluminum formwork system lower forming steel reinforcement framework system comprises an X-direction beam bottom plate, a Y-direction beam bottom plate and a Z-direction lower beam support, and further comprises an X-direction supporting assembly, a Y-direction supporting assembly and a Z-direction supporting assembly, the X-direction supporting assembly is arranged above the X-direction beam bottom plate, and the X-direction beam bottom plate and the X-direction supporting assembly jointly support a steel reinforcement framework component. Adjustment and standardized machining of the X-direction beam size, the Y-direction beam size and the Z-direction column size can be met, the device is suitable for most standard frame structure beam joints, application of a steel reinforcement framework under an aluminum formwork system is achieved, the assembling efficiency is improved, development of steel reinforcement engineering prefabrication and assembly is promoted, steel reinforcement framework components can be buffered and supported when lowered, and the construction efficiency is improved. Excessive impact on the aluminum formwork system structure caused by improper hoisting is avoided, and the safety of the steel reinforcement framework system during construction is improved.