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75results about How to "Guaranteed collimation" patented technology
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Display device
ActiveCN106873063AAffect thicknessAccuracy impactCharacter and pattern recognitionOptical elementsDislocationFingerprint
The invention discloses a display device. A filtering structure arranged between a protective cover plate and photosensitive devices is changed into filtering layers which are arranged in a laminated way, each filtering layer includes a light transmission area and a shielding area beyond the light transmission area, central positions of the light transmission areas of the different filtering layers are dislocated partially at least, orthographic projections of the light transmission areas of the different filtering layers in a display panel include an overlapped area, and the area of the overlapped area is the light transmission area of the filtering structure. The dislocation sizes of the central positions of the light transmission areas of the different filtering layers are adjusted to reduce the light transmission area of the filtering structure according to requirements, and thus, the filtering structure is not influenced by precision of manufacturing equipment, and the precision of optical fingerprint identification is improved. After that the light transmission area of the filtering structure is reduced according to requirements, a collimation effect can be ensured, and the filtering structure is prevented from being too thick and further influencing the thickness of the display device.
Owner:BOE TECH GRP CO LTD
Near-field plume mass-spectroscopic diagnostic E*B probe based on Faraday cup
InactiveCN104730066AGuaranteed OrthogonalityGuaranteed collimationAnalysis by thermal excitationMass spectrometryDrift tube
The invention discloses a near-field plume mass-spectroscopic diagnostic E*B probe based on the Faraday cup and belongs to the technical field of plasma mass-spectroscopic diagnosis. The probe mainly applied to measuring near-field plumes of an ion thruster and of a Hall thruster comprises a central frame, ferrite permanent magnets, a flat electrode plate, an electrode plate holder, a collimator tube, a drift tube, a Faraday cup, six carbon steel shells and an anti-sputtering heat-insulating layer. According to the connectional relation, the central frame is used as a core part, the ferrite permanent magnets are distributed on upper and lower surfaces of the central frame, the electrode plate is fixed in the central frame, and an orthogonal electromagnetic field area is formed. The six carbon steel shells are used for packaging, and the front ends of the shells are coated with an anti-sputtering heat-insulating layer. The collimator tube of stainless steel and the drift tube are fitly fixed to the centers of two ends of the central frame through shaft holes. Ions different in valence are screened by adjusting voltage among the electrode plates, univalent and bivalent ion currents are acquired with the Faraday cup of aluminum, and the ratio of near-field plum bivalent ions is acquired by analytical computing.
Owner:BEIHANG UNIV
Reflection type LED (Light-Emitting Diode) high beam for vehicle
InactiveCN102364232AGuaranteed collimationEliminate LED glarePoint-like light sourceElectric circuit arrangementsEngineeringLight-emitting diode
The invention discloses a reflection type LED (Light-Emitting Diode) high beam for a vehicle. The high beam comprises a reflector cup, an LED mounting column, a reflector cup bracket and a radiating shell; the inner surface of the reflector cup is a regular curve; the cross section of the LED mounting column is a polygon; the LED mounting column is arranged at the inner side of the regular curve and pointed to the focus of the regular curve; an LED chip is arranged on at least one surface of the LED mounting column and located in the focus of the regular curve; and the reflector cup bracket is arranged between the reflector cup and the radiating shell and used for supporting the reflector cup.
Owner:DONGGUAN DINGJU ELECTRONICS
Multifunctional branch trimmer
ActiveCN105165431ASuitable for fellingAvoid damageCuttersCutting implementsArchitectural engineeringEngineering
The invention discloses a multifunctional branch trimmer. The multifunctional branch trimmer comprises a supporting rod, a clamping rod and a saw rod which are sequentially arranged from inside to outside, wherein the supporting rod, the clamping rod and the saw rod are all insulating telescopic rods with limiting members, a first-section clamping rod at the uppermost end of the clamping rod is of a hook body with a rightward opening, a sliding groove is formed in a first-section saw rod at the uppermost end of the saw rod, a saw blade which can slide along the sliding groove is inserted in the sliding groove, the upper end of the saw blade is connected with the upper end of the first-section saw rod through a spring B, the lower end of the saw blade is connected with a steel wire rope, the steel wire rope is wound on a hand capstan, the hand capstan is mounted on the saw rod, the lower part of the first-section saw rod, the lower part of the hook body and the lower part of a first-section supporting rod at the uppermost end of the supporting rod are connected through a rotating shaft, and a base is mounted at the bottom of the supporting rod. The branch trimmer does not need additional power supplying, and workers can directly trim branches at high places on the ground, so that the branch trimmer is convenient and laborsaving in use, and the branches can be prevented from directly falling off in the air and damaging power supply lines.
Owner:RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER +1
Seabed type static cone penetrating device and control method thereof
ActiveCN107476276AEasy to operateImprove stabilityIn situ soil foundationGear transmissionEngineering
The invention discloses a seabed type static cone penetrating device and a control method thereof. The seabed type static cone penetrating device comprises a penetrating mechanism, a winding mechanism and a flexible tooth-shaped post, wherein the penetrating mechanism comprises an aligning tube and a gear transmission mechanism; the winding mechanism comprises a winch and a guide plate; the flexible tooth-shaped post comprises a steel cable and a plurality of tooth-shaped post sections which are in sliding sleeve on the steel cable and are connected in series; one end of the flexible tooth-shaped post is in winding connection with a winch; the other end of the flexible tooth-shaped post gets across a guide disc and then passes through the aligning tube; adjacent tooth-shaped post sections positioned in the aligning tube are in splicing connection; the two sides of each tooth-shaped post section are engaged with the gear transmission mechanism; the flexible tooth-shaped post has a straight state and a bent state, is convenient to operate, and is high in stability; the tooth-shaped post sections are connected in series automatically, and are not additionally connected, so that seabed static penetration under a deep-layer condition is conveniently realized; and through a dual-engagement structure that the gear transmission mechanism is engaged with the two sides of each tooth-shaped post section, collimation degree and pressure needed for penetrating are guaranteed.
Owner:OCEAN UNIV OF CHINA
Laser radar main module, laser radar and emitting light source installation method
PendingCN109375234AGuaranteed collimationAvoid multi-level assembly tolerancesElectromagnetic wave reradiationRadarComputer module
The invention relates to the technical field of artificial intelligence and particularly relates to a laser radar main module and a laser radar. The laser radar main module comprises a transmitting module, a receiving module, an optoelectronic circuit board, a main control board and a structural lens barrel. The transmitting module comprises a transmitting light source, a transmitting circuit anda transmitting lens, the receiving module comprises a receiving circuit, a photoelectric sensor and a receiving lens, the transmitting circuit, the receiving circuit and the photoelectric sensor are arranged on the photoelectric circuit board, the transmitting lens and the receiving lens are arranged in the structural lens barrel, and the structural lens barrel is connected to the main control board and the photoelectric circuit board. According to the invention, by directly setting the transmitting light source, the transmitting lens and the receiving lens in the structural lens barrel, the problems of low one-time success rate and low production efficiency of products in a traditional installation process are solved, at the same time, the measurement precision and stability of the products are improved at the same time, the difficulty of assembly is reduced, and the mass production of the products is facilitated.
Owner:BENEWAKE BEIJING TECH CO LTD
Production method of optical fiber preset core insert and positioning device
The invention relates to a production method of an optical fiber preset core insert, which has the characteristics that the insertion loss of the optical fiber core insert in the production process can be detected by an instrument. The technical scheme is as follows: the production method of the optical fiber preset core insert is characterized by comprising the following steps: (a) horizontally fixing a ceramic core insert on a workbench of a core insert grinder; (b) sheathing a protective sleeve on a bare optical fiber which is not cut; (c) inserting the bare optical fiber into an optical fiber hole from the tail part of the ceramic core insert; (d) starting the core insert grinder to grind the end surface of the head part of the ceramic core insert and the end surface of the bare optical fiber; (e) conducting return loss test on a light guiding surface; (f) if the test result is disqualified, repeating the steps (d-e) until the test is qualified; and (g) if the test result is qualified, stripping the protective sleeve of the bare optical fiber, and taking the core insert out of the core insert grinder, and preserving a tail fiber with a certain length, and cutting with a cutter.
Owner:WANMA TECH CO LTD
Four-roller connection-rod vacuum electron beam wire feeder
InactiveCN102357731AStable structureSimple structureElectron beam welding apparatusSelf formingWeld seam
The invention provides a four-roller connection-rod vacuum electron beam wire feeder, relates to a vacuum electron beam wire feeder, and belongs to the field of the welding machinery. The invention aims to solve the problems of the existing vacuum electron beam wire feeder that wire feeding rollers and wire pressing rollers are easily worn, the distance between the wire feeding rollers and the wire pressing rollers can not be automatically adjusted according to the diameter of welding wires, etc. The main structure of the four-roller connection-rod vacuum electron beam wire feeder comprises a servo motor, two wire feeding rollers, two wire pressing rollers, a connection rod, a U-shaped groove and spring limit mechanisms, wherein, one wire feeding roller is fixed on the rotating shaft of the servo motor, the wire feeding roller rotates as the motor rotates, power is supplied for the other wire feeding roller through the connection rod; the two wire pressing rollers are fixed on a support through studs and nuts; the four rollers are coplanar; the two wire pressing rollers supply pressing forces for the wire feeding operation; and the four rollers and the connection rod jointly form the four-roller connection-rod vacuum electron beam wire feeder. The four-roller connection-rod vacuum electron beam wire feeder provided by the invention is mainly applied in the fields such as dissimilar material vacuum electron beam welding, self-forming technology, material surface cladding, efficient optimization of the performances of welding seams, defect control and the like.
Owner:HARBIN INST OF TECH
Backlight module, manufacturing method thereof, and display device
PendingCN110400519AHigh light efficiencySimple structureCondensersNon-linear opticsDisplay deviceEngineering
The invention relates to the technical field of display, and provides a backlight module, a manufacturing method of the backlight module, and a display device. The backlight module comprises a liningsubstrate, a collimation layer and a plurality of light-emitting elements, wherein the collimation layer is arranged on one side of the lining substrate, a plurality of through holes are arranged in the collimation layer in an array distribution manner, and the inner side faces of the through holes can reflect light rays; and the plurality of light-emitting elements are arranged on the lining substrate and positioned in the through holes. For the backlight module provided by the invention, the lighting effect of the backlight module can be improved under the premise that the collimation is guaranteed, and meanwhile, the backlight module is simple in structure and easy to process.
Owner:BOE TECH GRP CO LTD
Spray nozzle used for high-pressure washer
InactiveCN105817376AGuaranteed water pressureReduce processing difficultySpray nozzlesCleaning using liquidsSpray nozzleEngineering
The present application discloses a nozzle for a high-pressure cleaning machine, which includes a main body, the main body is formed with a hollow cavity along the axial direction, and two injection holes are opened on the main body, and the two injection holes are symmetrically distributed on the On both sides of the main body, the two injection holes communicate with the cavity, the angle between the two injection holes is 154-158Β°, and the opening formed by the intersection of the two injection holes faces away from the hollow space. cavity. The two injection holes of the present invention form a certain included angle, which can greatly reduce cleaning blind spots when entering deep holes for cleaning, improve product quality, and achieve ideal cleaning effects.
Owner:JIANGSU GANGXING FANGNENG ULTRASONIC CLEANING TECH CO LTD
Plasma etching method and system
ActiveCN104752256ADirection of motion effectGuaranteed collimationElectric discharge tubesSemiconductor/solid-state device manufacturingPartial chargeElectric field
The invention provides a plasma etching method and a system. The etching method comprises a plurality of etching cycles, wherein each etching cycle comprises a plasma etching stage and a charge neutralization stage; partial charge is attached on the surface of a substrate and / or in an etching graph in an etching process; plasma etching is stopped in the charge neutralization stages; ions with preset conductive charge are supplied into a reaction chamber within at least partial time period in a plasma etching stop process; and the ions with the preset conductive charge are used for neutralizing the charge attached on the surface of the substrate and / or in the etching graph. An influence of a built-in electric field generated by deposited charge on plasma is eliminated by charge neutralization; the accuracy of the plasma etching is ensured; and the collimation of the etching graph is ensured.
Owner:ADVANCED MICRO FAB EQUIP INC CHINA
Collimation method of three-dimensional galvanometer and collimation system adopted by collimation method
ActiveCN105215544AGuaranteed collimationImprove machining accuracyLaser beam welding apparatusData platformAstronomy
A collimation method of a three-dimensional galvanometer comprises the following steps that two diaphragms are fixedly installed on a datum platform; a laser is installed on the datum platform and light paths emitted by the laser pass through the two diaphragms; an observation locator is installed on the datum platform, light spots of the light paths are adjusted, and the light spots are made to be located in the center of the observation locator and fixed; a beam expansion system is installed on the datum platform, the light paths are adjusted to be collimating, and the positions of the light spots on the observation locator are observed and kept unchanged; a Z-axis galvanometer installation shell is installed on the datum platform, so that the centers of a light path light inlet and a light outlet are located on the light path collimating line; and the beam expansion system is taken away, a Z-axis galvanometer is arranged in the Z-axis galvanometer installation shell, the dip angle of the Z-axis galvanometer is adjusted, the positions of the light spots on the observation locator are kept unchanged, and then the Z-axis galvanometer is fixed. The method collimates the Z-axis galvanometer installation shell and the Z-axis galvanometer, the collimation of the light path centers of the Z-axis galvanometer is ensured, and the machining precision is improved. The invention further provides a collimation system used for the collimation method of the three-dimensional galvanometer.
Owner:HANS CNC SCI & TECH
Continuous stamping die for parent track material sheets of automobile seat slide rail
ActiveCN106493231AAvoid displacementGuaranteed collimationShaping toolsMetal-working feeding devicesEngineeringScrew cap
The invention relates to the technical field of stamping dies for automobile spare parts, in particular to a continuous stamping die for parent track material sheets of an automobile seat slide rail to solve the technical problem that when an existing continuous stamping die for parent track material sheets of an automobile seat slide rail is used for stamping, to-be-stamped strip-shaped raw materials are prone to displacing towards the lateral sides of the die. The continuous stamping die for the parent track material sheets of the automobile seat slide rail is provided with a stamping limiting mechanism located on one lateral side of the die. The stamping limiting mechanism comprises an upper cushion block, nitrogen springs, an upper press block, a guide block, a plug pin, an oblique-surface slide block, an oblique-surface insert block, a backer, reset springs, nuts and screws. The guide block is provided with a plug pin hole matched with the plug pin. By adoption of the stamping limiting mechanism, displacement of the to-be-stamped strip-shaped raw materials towards the lateral sides of the die during stamping can be prevented.
Owner:ζ ι‘θ―Ίι£ι«ζ°ζζ―ζιε
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High-precision three-dimensional sound field measurement system for medical ultrasonic equipment
ActiveCN110726470AAvoid measurement errorsImprove measurement efficiencySubsonic/sonic/ultrasonic wave measurementUsing electrical meansHydrophoneDisplay device
The invention discloses a high-precision three-dimensional sound field measurement system for medical ultrasonic equipment. The high-precision three-dimensional sound field measurement system comprises a hydrophone, an ultrasonic probe, a movable frame, a control module, a data acquisition device, a data processing module, a first motion driving module, a second motion driving module, an analog simulation system and a display device; the movable frame is detachably connected with a measurement tank, a three-axis motion positioning system, an ultrasonic probe fixture and a laser acquisition device fixture, the three-axis motion positioning system is detachably connected with a hydrophone fixture, the hydrophone fixture is detachably connected with a first laser, the ultrasonic probe fixtureis detachably connected with a second laser, and the laser acquisition device fixture is detachably connected with a laser acquisition device. The high-precision three-dimensional sound field measurement system effectively ensures the collimation of an acoustic axis of the ultrasonic probe and the axis alignment of the ultrasonic probe and the hydrophone, and can timely find an error of measurement data and check and correct the measurement system, thereby achieving quick and accurate measurement on the sound field of the ultrasonic equipment.
Owner:HEBEI UNIV OF TECH
Photoelectric detection device and hydrazine analyzer
InactiveCN102928363AGuaranteed collimationAccurate photoelectric detection resultsColor/spectral properties measurementsCuvetteHydrazine compound
The invention relates to a photoelectric detection device. The photoelectric detection device comprises a support, a cuvette, a light source and a receiver, wherein the cuvette is fixed to in the middle of the support in a manner of threaded connection; and the light source and the receiver are fixed on the support and are positioned on both sides of the cuvette. The invention also provides a hydrazine analyzer with the photoelectric detection device structure. The cuvette in the photoelectric detection device is fixed on the support in the manner of threaded connection, so that the photoelectric detection device is easy to disassemble in structure, and the cuvette is convenient to manually clean and maintain.
Owner:CHONGQING CHUANYI ANALYZER CO LTD
Serial double-coil radio frequency driving gas discharge device
InactiveCN112888132AImprove excitation efficiencyIncrease beam intensityPlasma techniqueAtomic beamMagnetic line
According to a serial double-coil radio frequency driving gas discharge device, a serial double-coil structural design is adopted, plasma discharge can be generated through driving excitation of radio-frequency signals with the same frequency or different frequencies, the length of a discharge area is longer than that of a single-coil resonant cavity, gas discharge can be generated in a larger range, metastable state atom excitation efficiency can be improved, and the metastable state atom beam intensity can be increased; a compression ring and a positioning cover ring are used for positioning a gas conduit so that the coaxiality and the collimation of the gas conduit and a mounting flange can be effectively ensured, and atomic beam orientation is facilitated; and an electrified solenoid coil is wound outside a shielding layer by an enameled wire, a current is introduced to generate a magnetic field, electrons in the plasma do rotary motion along magnetic lines of force, a collision probability of the electrons and atoms can be further improved, and the excitation efficiency is increased. According to the invention, different kinds of gases or other samples can be filled according to requirements, and the device is used for low-voltage plasma discharge of various gases so that multiple purposes are realized.
Owner:PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
Plastic deformation method for achieving structural performance optimization of inner surface of straight pipe
ActiveCN109609743AHigh surface hardnessHigh strengthFurnace typesHeat treatment furnacesEngineeringShearing deformation
The invention belongs to the field of plastic processing, and relates to a plastic deformation method for achieving structural performance optimization of an inner surface of a straight pipe. High-speed shearing deformation is carried out on the inner surface of the metal straight pipe in a point contact mode, so that the structural performance of the inner surface of the pipe fitting is optimized. The plastic deformation method for achieving the structural performance optimization of the inner surface of the straight pipe has the following technical advantages that the point contact is introduced into the high-speed shearing plastic deformation, and effective cooling in straight pipe processing is achieved; the uniformity and the collimation degree of the wall thickness is effectively guaranteed before and after straight pipe processing; a 500-micron plastic deformation surface layer is formed on the inner surface of the straight pipe, so that the hardness and the strength of the inner surface of the straight pipe are improved by 5-20 times, and the surface quality is improved until the roughness Ra is 0.02-0.2; and the chemical activity of the inner surface of the straight pipe is greatly improved, and the temperature of chemical heat treatment such as nitrizing and carburizing is reduced by 200 DEG C or above.
Owner:YANSHAN UNIV
Ceramic filled type neutron tube
InactiveCN101699612AGuaranteed collimationHigh outputIon beam tubesNeutron sourcesUltimate tensile strengthMachining
The invention belongs to an improved turn-off neutron source, and in particular relates to a neutron tube. In the neutron tube, a ceramic insulating ring is filled between an anode cylinder and an ion source cover and another ceramic insulating ring is filled between the ion source cover and an accelerating cylinder, so an air-out space in the neutron tube is reduced, insulating strength is improved, sealing difficulty is reduced and the coaxiality of a system is effectively guaranteed. The neutron tube has the advantages of greatly reducing discharging and puncturing probabilities, guaranteeing the collimation of the neutron tube, improving the product yield, service life and stability of the neutron tube and realizing the industrialization of the machining and manufacturing of the neutron tube, wherein phi50 is taken as an example, the service life of an improved product is increased by more than 3 times, while the product yield is increased by about 5 times, the stability is not more than 3 percent and the finished product ratio is over 90%.
Owner:NORTHEAST NORMAL UNIVERSITY
Backlight module, manufacture method thereof, and display device
InactiveCN110161620AWon't hurtGuaranteed to be smoothPhotomechanical apparatusPlanar/plate-like light guidesGratingLight guide
The invention provides a backlight module, a manufacture method thereof, and a display device, and belongs to the technical field of display. The manufacture method for the backlight module comprisesthe following steps that: forming a light getting optical grating material layer on the light emitting surface of a light guiding plate; through a nanoimprint technology, forming an imprinting adhesive graph on the light getting optical grating material layer; forming a photoresist graph which covers the imprinting adhesive graph in an area where the light getting optical grating needs to be formed; removing the imprinting adhesive graph which is not covered with the photoresist graph; and removing the photoresist graph, taking the residual imprinting adhesive graph as a mask to etch the lightgetting optical grating material layer, and forming the light getting optical grating. By use of the technical scheme of the invention, the contrast ratio of the display device can be improved.
Owner:BOE TECH GRP CO LTD
Optical fiber collimating device and assembling method thereof
ActiveCN105911644AWith collimationGuaranteed collimationCoupling light guidesInterconnectionEngineering
The invention discloses an optical fiber collimating device and an assembling method thereof and especially relates to the optical fiber collimating technology field. In existing optical fiber welding operation, a ''V''-shaped groove used for fixing an optical fiber is movably connected to a movable workbench, and an installation reference surface of the ''V''-shaped groove and the movable workbench is difficult to realize accurate collimation connection. By using the device and the method of the invention, the above problems are solved. The optical fiber collimating device comprises a substrate and a substrate support bench. The substrate is made of a silicon wafer or a ceramic material. The substrate is arranged on the substrate support bench. The substrate comprises a first optical fiber carrying portion, a middle interconnection portion and a second optical fiber carrying portion. Central axes of the first optical fiber carrying portion, the middle interconnection portion and the second optical fiber carrying portion are provided with V-shaped grooves which pass through each other and have V-shaped cross sections. The substrate support bench comprises a first workbench and a second workbench. Shapes of the first workbench and the second workbench are similar and the first workbench and the second workbench are parallel to each other.
Owner:THE 41ST INST OF CHINA ELECTRONICS TECH GRP
Optical-fiber scanning imaging system and optical-fiber scanning imaging equipment
PendingCN109212745AGuaranteed collimationGuaranteed resolutionOptical elementsImage resolutionControl circuit
The invention discloses an optical-fiber scanning imaging system and optical-fiber scanning imaging equipment. The optical-fiber scanning imaging system includes an optical source, scanning optical-fiber, a control circuit, a collimating microlens array and an angle expanding lens group. Optical beams exiting the optical source are coupled into the scanning optical-fiber, then exits from the scanning optical-fiber, then is collimated by the collimating microlens array, then passes through the angle expanding lens group, and then exits. A technical scheme of collimating, through the collimatingmicrolens array, the optical beams exiting from the scanning optical-fiber is employed, thus collimation of the optical beams exiting from all collimating microlenses in the collimating microlens array is ensured, resolution of images formed by scanning of the optical-fiber scanning imaging system is also ensured, thus a display effect of the images formed by scanning is ensured, and cases wherethe optical beams exiting from the scanning optical-fiber becomes thicker with distance increasing, and thus the display effect of the images formed by scanning is impacted are avoided.
Owner:CHENGDU IDEALSEE TECH
Light source system
InactiveCN103941412AGuaranteed collimationHigh precisionProjectorsLighting device detailsPrismOptoelectronics
The invention provides a light source system, which comprises a birefringent prism, a filter, a first laser source, a second laser source and a third laser source, wherein the birefringent prism comprises a light incoming surface and a light outgoing surface; the first laser source and the second laser source are located at the side where the light incoming surface is located; the filter is located at the side where the light outgoing surface is located; the third laser source is located at the other side opposite to one side where the filter faces the light outgoing surface; the first laser source projects a first color light line whose polarization direction is a first polarization direction; the second laser source projects a second color light line whose polarization direction is a second polarization direction; the first color light line and the second color light line pass through the light outgoing surface of the light outgoing surface, are mixed and go out in the direction vertical with the light outgoing surface; and the mixed light from the birefringent prism and a third color light line transmitted by the third laser source are transmitted and reflected via the filter and a white line is combined. Laser is adopted as light sources, and light utilization rate of light projected from the light source system can be ensured.
Owner:HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
Mounting bracket for coaxial optical system and coaxial optical system with same
PendingCN110244424AImprove installation accuracyCalibration is easy to operateMountingsEngineeringOptical table
The present invention provides a mounting bracket for a coaxial optical system, and a coaxial optical system with the same. The mounting bracket comprises: a base body mounted on an optical platform of the coaxial optical system, wherein the base body has a positioning hole for mounting a positioning rod; a clamping assembly which is arranged on the positioning hole and is configured to fix the positioning rod; and a mounting plate arranged on the base body, wherein the mounting plate has a mounting hole for mounting an optical component. The clamping assembly is configured to position, clamp and fix the positioning rod to ensure a unique positional relationship between the positioning rod and the mounting bracket; and a plurality of mounting brackets can be connected and positioned by using the positioning rod to ensure collimation, and the coaxial precision of the mounting bracket can be improved, so that the mounting precision of the coaxial optical system is improved, the calibration accuracy of the optical path is improved, the stability of the optical path is improved, and the calibration operation of the coaxial optical system is facilitated.
Owner:εδΊι +2
Laser radar scanning system and angle beam expanding device and application thereof
PendingCN111090081AExtend the scan rangeImprove scanning efficiencyElectromagnetic wave reradiationLight beamScan angle
The invention provides a laser radar scanning system, an angle beam expanding device and application thereof. The laser radar scanning system comprises at least one light source assembly, a scanning device and at least one angle beam expanding device. The light source assembly generates at least one laser beam, wherein the scanning device reflects the laser beam at a scanning angle, and the anglebeam expanding device amplifies the scanning angle of the laser beam and projects the laser beam outwards. The angle beam expanding device comprises at least one angle expanding device and a light condensing device, wherein the angle expanding device amplifies the scanning angle of the laser beam reflected by the scanning device and maintains the collimation of the laser beam, and the angle expanding device projects the laser beam with the amplified scanning angle outwards so as to expand the detection field of view of the laser radar scanning system.
Owner:NINGBO SUNNY AUTOMOTIVE OPTECH
Coaxial double-coil radio frequency driving gas discharge device
InactiveCN112638023AImprove excitation efficiencyIncrease beam intensityPlasma techniqueResonant cavityDual coil
The invention provides a discharge device for generating low-temperature and low-pressure plasmas by adopting a coaxial double-coil radio frequency driving gas discharge mode. According to the invention, two spiral coils and a shielding layer form a double-coil radio frequency resonant cavity to excite gas in a gas conduit to generate plasma discharge. Parameters of the inner solenoid coil and the outer solenoid coil are different, radio frequency signals with different frequencies can be adopted to drive plasma to discharge at the same time, decoupling independent control is carried out on electron energy and electron density, and the metastable state atom excitation efficiency is improved. The plasma discharge device is provided with the inner solenoid coil and the outer solenoid coil, when one solenoid coil fails, the other solenoid coil can work independently to drive plasma to discharge, the reliability and robustness of the discharge device can be improved, and the number of vacuum maintenance times for disassembly and assembly is reduced.
Owner:PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
Projection system with multi-luminous-spot packaging semiconductor laser alignment structure
InactiveCN106502036AGuaranteed collimation effectGuaranteed collimationProjectorsOptical elementsProjection systemLight source
The invention discloses a projection system with a multi-luminous-spot packaging semiconductor laser alignment structure. The projection system comprises a multi-luminous-spot packaging diode used as an emitting light source, and an alignment structure arranged on a light beam emission path of the multi-luminous-spot packaging diode, wherein the alignment structure comprises a micro lens array which consists of a plurality of micro lenses I that are in array configuration on the light beam emission path of the multi-luminous-spot packaging diode, and a lens group II which is arranged on the light beam emission path of each micro lens I and can perform alignment on the light beam emitted by the multi-luminous-spot packaging diode by matching with the micro lenses I; the number of the micro lenses I is determined according to the number of the luminous spots of the multi-luminous-spot packaging diode; and the sizes and the positions of the micro lenses are determined by the distances and the light beam angles of the luminous spots, namely each micro lens is only corresponding to one luminous spot light beam. According to the projection system, the alignment for the multi-luminous-spot packaging diode light beam is realized by adding the micro lens array before the existing alignment lens group, so that a relatively good alignment effect is realized without changing the existing alignment system condition.
Owner:CHINA HUALU GRP
Light source system
The invention provides a light source system which comprises a first prism, a second prism, a first laser source, a second laser source and a third laser source. A first single-color light beam emitted by the first laser source is reflected by the first prism and then combined with a second single-color light beam which is emitted by the second laser source and refracted by the first prism to form a mixed light beam, and the mixed light beam emits from the first prism. A third single-color light beam emitted by the third laser source is reflected by the second prism and then combined with the mixed light beam emitted from the first prism and refracted by the second prism to form a white light beam, and the white light beam emits from the second prism. By using laser as a light source, utilization rate of the light projected from the light source system is guaranteed.
Owner:HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
Preparation method of asymmetrically infiltrated high-collimation high-surface-viscosity fabric prepreg
The invention relates to the technical field of additive manufacturing, in particular to a preparation method of asymmetrically infiltrated high-collimation high-surface-viscosity fabric prepreg. In the preparation method, firstly, a continuous resin adhesive film is prepared, after a fabric is led into a prepreg compression roller gap, the fabric unwinding tension is adjusted and optimized by utilizing deviation angle feedback of an infrared tracing line and a fabric weft tracing line, so that the collimation of the fabric prepreg is ensured; the method comprises the following steps: firstly, preparing a fabric prepreg, further ensuring the quality of the fabric prepreg and enhancing the strength of the fabric prepreg, then introducing a resin adhesive film to the upper surface of the fabric, and simultaneously introducing release paper to the lower surface of the fabric, so that a combination of the resin adhesive film, the fabric and the release paper sequentially passes through a heating plate and a hot pressing roller to finish heating and hot pressing, thereby realizing preparation of the fabric prepreg by coating the adhesive film on a single surface. The non-infiltration area on the lower surface of the fabric prepreg is used for vacuum air guide, the requirement of a prepreg / vacuum bag forming process for the high air guide performance of the prepreg is met, and low-cost manufacturing of a high-performance composite material is achieved.
Owner:AVIC COMPOSITES
A seabed static penetration penetration device and its control method
Owner:OCEAN UNIV OF CHINA
A kind of sample preparation method and device for measuring high temperature thermal diffusivity of fiber
ActiveCN110057860BGuaranteed collimationAccurately reflects thermal conductivityMaterial heat developmentPreparing sample for investigationThermal diffusion coefficientFilament winding
Owner:BEIHANG UNIV
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