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47 results about "Coaxial system" patented technology
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Core-shell microcapsule and preparation method thereof
ActiveCN102070895ASimple structureSimple processPeptide/protein ingredientsPharmaceutical product form changeControlled releaseBiopolymer
The invention discloses a core-shell microcapsule and a preparation method thereof. The core-shell microcapsule comprises a core layer and a shell layer, wherein the core layer and shell layer are composed of different biomacromolecules with the weight-average molecular weight of 0.05-0.5 million; the mass percentage of the core layer is 20-95%, and the mass percentage of the shell layer is 5-80%; and the core layer and shell layer further contain growth factors and / or medicaments, thereby achieving different functions of the microcapsule. Through adopting a coaxial system, core layer and shell layer biopolymer material solution is formed, so as to obtain the core-shell microcapsule. The preparation method has the characteristics that the process is simple, the operation is convenient, and the cost is low; the obtained microcapsule has the advantages of good biocompatibility, biodegradation and bioabsorbability, can carry the active growth factors and the medicaments, achieves separate controlled release, and has wide application prospect in the fields such as tissue engineering scaffold materials, stem cell study, medicine controlled release and the like.
Owner:WUXI ZHONGKE GUANGYUAN BIOMATERIALS
Continuously variable ratio transmission system
A multi-regime continuously variable ratio transmission system has coaxial system input and output shafts (16, 24), a continously variable ratio transmission unit (V) connected coaxially to the system input shaft (16) and having a coaxial variator output shaft (18) and a mixing epicyclic gear train (E1) having an input sun gear (S1) drivably connected to the variator ouput shaft (18), a planet carrier (C1) drivably connected to the system input shaft (16) and a planet gear (P1) mounted on the planet carrier ((C1). The planet gear (P1) drives a first intermediate output shaft (22) arranged coaxially with the system input shaft (16) and selectively connectable to the system output shaft via a first clutch (H) in high-regime operation of the transmission. The planet gear (P1) also provides the input for a second epicyclic gear train (E2) having an output (C2) which is selectively connectable to the system output shaft via a braking element (L) for low-regime operation of the transmission. The arrangement minimises the number of gear meshes, thereby minimising transmission losses and the absence of an annulus in the mixing epicyclic gear train (E1) allows more freedom in the choice of gear sizes, thereby permitting reduced gear speeds.
Owner:TOROTRAK (DEV) LTD
Catoptric projection optical system, exposure apparatus and device fabrication method using same
InactiveUS6947210B2Small spanImprove imaging effectMirrorsSemiconductor/solid-state device manufacturingIntermediate imageCatoptrics
A catoptric projection optical system for projecting a pattern on an object surface onto an image surface and for serving as an imaging system that forms an intermediate image includes first, second, third and fourth mirrors serving substantially as a coaxial system so as to sequentially reflect light from an object side to an image side, and being arranged so that light from the object surface to the first mirror may intersect light from the second mirror to the third mirror.
Owner:CANON KK
Near field coaxial double-visual-field Mie scattering atmosphere lidar
InactiveCN102854514AImprove the shortcomings that limit the detection ability of lidarIncrease distanceElectromagnetic wave reradiationICT adaptationVisual field lossAtmospheric lidar
The invention relates to a near field coaxial double-visual-field Mie scattering atmosphere lidar which is characterized by comprising an optical system and a photoelectric detection system, wherein the optical system is used for launching a laser pulse bundle to the atmosphere and receiving a backward scattering echo produced by atmospheric aerosol to the launched laser pulse bundle; the photoelectric detection system is used for processing a backward scattering echo received by the optical system; and in the optical system, a laser launching system and two independent sets of optical receiving channels respectively adopt coaxial and non-coaxial sending and receiving designs, and the signal detection and collection simultaneously adopt a modulus detection and photon counting detection mode. According to the near field coaxial double-visual-field Mie scattering atmosphere lidar disclosed by the invention, the low altitude detection can adopt a large visual field angle and a coaxial system, the high altitude detection can adopt double modes of a small visual field angle and a non-coaxial system and photon counting and detection simulation, and therefore, the detection capability of a lidar system in a low altitude condition and a high altitude condition is enhanced, and the support is supplied for atmospheric boundary layer detection and stratosphere atmospheric aerosol detection.
Owner:WUHAN UNIV
Direct analysis device of solid samples
ActiveCN103698385AAvoid lostGuarantee statusPreparing sample for investigationMaterial analysis by electric/magnetic meansPicosecond laserSolenoid valve
The invention discloses a direct analysis device of solid samples, wherein a sample pool is installed on a three-dimensional moving platform, a microscopic imaging system is aligned to a solid sample in the sample pool, a laser beam emitted by a picosecond laser is focused onto the surface of the sample in the sample pool through a laser optical system, particles generated by laser ablation enter an inductively coupled plasma source mass spectrometer through an aerosol transmission system, the direct analysis device has the advantages that the laser wavelength can be selected from 1064 nm, 532 nm, 355 nm and 266 nm, the pulse width is 30 ps, the pulse frequency is 20 Hz, the pulse energy is continuously adjustable, and the maximal pulse energy of 266 nm reaches 3.0 mJ; the position of the sample pool is three-dimensional controllable, and the transmission pipeline of the aerosol transmission system switched by a tee solenoid valve is short; a non-coaxial system is adopted to quickly focus and position the sample ablation position. As shown in analysis, basically no element fractionation effect exists in the elements of low alloy steel, pure copper, pure aluminum and the like, and basically no matrix effect exists in the elements of iron base, copper base, aluminum base and the like.
Owner:NINGBO ACAD OF SCI & TECH FOR INSPECTION & QUARANTINE
Laser beam-expanding dodging device based on microlens array
InactiveCN103969832AHigh diffraction efficiencyImprove the power ratio of incident and outgoing lightOptical elementsMaximum diameterSystem structure
The invention relates to a laser beam-expanding dodging device based on a microlens array and belongs to the field of laser beam expansion. The laser beam-expanding dodging device sequentially consists of a first level microlens array, an iris diaphragm and a second level microlens array which are located on a same straight line, and screen edges of the first level microlens array, an iris diaphragm and a second level microlens array are parallel to form a coaxial system, wherein the microlens element parameters of the first and second level microlens arrays are same, the microlens element diameter is p, and the rear focal distance of the microlens arrays is f; the diameter of the first level microlens array is D1, the maximum diameter of the iris diaphragm is D2, the diameter of the second level microlens array is D3, the distance between the two microlens arrays is d, and the distances from the iris diaphragm to the first and second level microlens arrays are respectively f and d-f. According to the dodging device provided by the invention, the microlens array replaces a single lens designed beam-expanding system, so that the aberration quality of a beam-expanding optical system is improved, the system structure is simplified, the beam-expanding ratio is improved and the precision demand on system adjustment is reduced.
Owner:HARBIN INST OF TECH
Broad wave band, large view field and large aperture coude three reflection afocal optical system
The invention discloses a broad wave band, large view field and large aperture coude three reflection afocal optical system used for detecting long-distance objects within a large scope, and object detection distance and detection probability can be improved. In a structure of the optical system, a main reflecting mirror with a paraboloid and a secondary reflecting mirror with double curved surfaces form a telescope objective system, an object space focal point of a three reflection mirror with double curved surfaces and an image space focal point of a telescope objective coincide, an entrance pupil is positioned on the main reflecting mirror, and a plane scanning mirror is positioned on an exit pupil of the system In the optical structure provided in the invention, design of the large view field and large aperture coude three reflection afocal optical system free from secondary block is realized via small decentration and inclination. Compared with a coaxial system, the coude three reflection afocal optical system is advantageous in that while a similar mechanical structure is kept, secondary blocking caused by three mirrors in a large view filed can be prevented, and the view field can be enlarged; compared with a conventional off-axis system, the coude three reflection afocal optical system is advantaged by compact structure, small size, capability of meeting requirements for system miniaturization and light weight, small introduced decentration and inclination, large amplification factor, and MTF close to a diffraction limit.
Owner:SUZHOU UNIV
Long focal length ultrashort tube length coaxial total reflection optical system
InactiveCN106094186AReduce complexityPlay the role of foldingOptical elementsHyperboloidOptical axis
The invention discloses a long focal length ultrashort tube length coaxial total reflection optical system, which belongs to the optical design field, and is used to solve problems of long focal length space cameras such as large size and complicated structure. The optical system is constituted by a first reflector, a second reflector, a third reflector, and a focal plane. The optical system is a coaxial system, and the whole system is rotatably symmetric with respect to an optical axis. Light at infinity in object space is irradiated on the first reflector, and is reflected to the second reflector by the first reflector, and thereafter is gathered on a first image plane after being reflected by the second reflector, and then is irradiated on the third reflector, and is reflected to the second reflector by the third reflector, and then is reflected by the second reflector again, and at last is gathered on the focal plane. The reflecting surface of the first reflector is a concave high order aspherical surface having second-order, fourth-order, sixth-order, eighth-order aspherical coefficients. The reflecting surface of the second reflector is a convex hyperboloid surface, and the reflecting surface of the third reflector is a concave ellipsoid surface having second-order, fourth-order, sixth-order aspherical coefficients. The long focal length ultrashort tube length coaxial total reflection optical system is widely used for the space remote sensing field.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Permanent magnet axial force adaptive balancing device
PendingCN108869377AReduce wearExtended service lifePump componentsPump installationsMagnetic tension forceImpeller
The invention discloses a permanent magnet axial force adaptive balancing device. The device comprises main components including a seawater desalination and energy recovery integrated machine housing,a pump impeller, a turbine impeller, a pump shaft, a thrust bearing, a long water lubricated sliding bearing and a short water lubricated sliding bearing. Annular permanent magnets with the same polarity are embedded in the turbine impeller and the thrust bearing respectively, and the axial force adaptive balance of the pump impeller and turbine impeller can be achieved through a magnetic force of the same repulsive polarity. According to the axial force adaptive balancing device, a thrust plate does not need to be added to balance an axial force, and the problem of adaptive balance of the axial force of a dual-rotor coaxial system is effectively solved; at the same time, acting loads of the axial thrust on the thrust bearing are effectively reduced, friction losses caused by the rotor system due to addition of the thrust plate are reduced, and the reliability of the rotor system of a seawater desalination and energy recovery integrated machine and the stability and safety of an integrated machine system are improved.
Owner:JIANGSU UNIV +1
X ray and laser coaxial system
InactiveCN104199082AEasy to handleRadiation measurementSurveying instrumentsSoft x rayFlat panel detector
The invention relates to an X ray and laser coaxial system. The X ray and laser coaxial system comprises an ionization chamber adjusting device and a laser adjusting device; the ionization chamber adjusting device comprises a first track which is parallel to an X ray; the beam center of the X ray and the center of an array flat-panel detector are overlapped; the laser adjusting device is located at a corresponding position of one side of the ionization chamber adjusting device; a laser which is used for emitting a laser is clamped by the laser adjusting device; when the laser irradiates on the array flat-panel detector, the laser emergent position of the laser is adjusted to enable the cross center of the laser and the center of the array flat-panel detector to be overlapped; the relative distance of the array flat-panel detector and the laser adjusting device is changed and the laser emergent position of the laser is adjusted again to enable the cross center of the laser and the center of the array flat-panel detector to be overlapped again; the laser emergent position of the laser is adjusted to until the cross center of the laser and the center of the array flat-panel detector to be always overlapped so as to enable the laser and the X ray to be coaxial. According to the X ray and laser coaxial system, the coaxial treatment on the X ray and the laser is convenient to achieve.
Owner:NAT INST OF METROLOGY CHINA
Refrigerating compact unobstructed free-form optical system
The invention discloses a refrigerating compact unobstructed free-form optical system comprising a first reflecting mirror, a second reflecting mirror and a third reflecting mirror arranged in sequence. All three reflecting mirrors are free-form surfaces and use an XY polynomial or Zernike polynomial. Inclination or simultaneous existence of the eccentricity and inclination exists relative to thecoaxial system. The three reflecting mirrors are arranged in a circle; the light intersects multiple times in space; and the structure is compact. The incident light is not shielded by the three reflecting mirrors and can reach the final image plane completely. An intermediate image plane exists in the optical path between the second reflecting mirror and the third reflecting mirror and is adjacent to the second reflecting mirror. A system diaphragm is arranged near the first reflecting mirror. Therefore, the size of the traditional off-axis three-reflecting system is reduced; the secondary imaging technology is realized in compact space, so that the exit pupil is located behind the third reflecting mirror outside the overlapped optical path; the system can match the refrigerating detectorcooling aperture. The 100% of cold diaphragm efficiency is realized and the target acting distance is increased.
Owner:西安应用光学研究所
Quasi coaxial small-distortion long-focus four-reflection optical system
The invention provides a quasi coaxial small-distortion long-focus four-reflection optical system, belongs to the technical field of space optics, and aims at solving the problem of small field angle of the existing coaxial system. The optical system comprises an aperture stop, a primary reflector arranged at the back of the aperture stop, a secondary reflector arranged on a reflecting light path of the primary reflector, an elbow mirror arranged on the reflecting light path of the secondary reflector, a third reflector arranged on the reflecting light path of the elbow mirror, another elbow mirror arranged on the reflecting light path of the third reflector, a fourth reflector arranged on the reflecting light path of the elbow mirror, and an optical system focal plane; the optical system is of a quasi coaxial structure; the aperture stop is polarized; the primary reflector is of a structure of an aspheric partial light transmitting area that is downwards polarized and symmetric opposite to an optical shaft; the elbow mirror, the third reflector, the another mirror and the fourth reflector in the light path at the back of the secondary reflector are positioned at the back of the primary reflector; the secondary reflector, the elbow mirror, the third reflector, the another elbow mirror and the fourth reflector are light transmitting aperture areas by size.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Reflection type projection optical system, exposure apparatus and device fabrication method using the same
InactiveUS6860610B2Simple configurationImprove imaging effectMirrorsSemiconductor/solid-state device manufacturingIntermediate imageCoaxial system
A reflection type projection optical system for projecting a pattern on an object surface onto an image surface and forming an imaging system that forms an intermediate image between the object surface and image surface includes four or more mirrors arranged substantially as a coaxial system to reflect light from an object side to an image side, reflection surfaces on the four or more mirrors forming the same direction for forming a reflection angle.
Owner:CANON KK
Multispectral reflection type collimator
PendingCN106644412AParallelismSolving the Difficulty of Simultaneous DetectionTesting optical propertiesOptical elementsDesign softwareMultispectral image
The invention belongs to the optical equipment technology field, to be specific, relates to a multispectral reflection type collimator. The multispectral reflection type collimator comprises a base; a housing disposed on the base; a lens group and a power supply, which are disposed in the housing. The lens group adopts a reflection type lens group structure, which comprises a first primary lens and a secondary lens. The horizontal position of the first primary lens and the horizontal position of the secondary lens are opposite to each other, and the height position of the first primary lens and the height position of the secondary lens are in an up-down staggered arrangement. The side surface of the housing is provided with a target and a light source, and the focal plane of the target is provided with the light source. By adopting the above mentioned structure, a Zemax optical design software is adopted, and the reflection type structure is adopted, and then achromatism under a condition of different spectrums is guaranteed, and the output light parallelism of different spectrums is consistent; difficulty in simultaneous detection of different wavelength spectrums is solved, and at the same time a testing standard is provided for the coaxial system of the multispectral optical system. The multispectral reflection type collimator is widely used for the optical performance testing of various products, and foundation is laid for guarantee of infrared imaging product quality.
Owner:上海镭昊光电股份有限公司
Projection optical system, exposure apparatus, and device manufacturing method
Disclosed is a projection optical system specifically to be used with extreme ultraviolet (EUV) light having a wavelength not less than 10 nm and not greater than 20 nm. The projection optical system has six mirrors sequentially reflecting light in an order from the object side toward the image side and being disposed to define a coaxial system, wherein each of the six mirrors has a curvature radius not greater than 1500 mm.
Owner:CANON KK
System and method for phase micro-interference imaging based on common-optical path system
InactiveCN104111257AReduce parallelismGuaranteed reliabilityMaterial analysis by optical meansMicro imagingBiological cell
Owner:JIANGSU UNIV
Optical system
InactiveCN106483529AHigh precisionImprove reliabilityOptical rangefindersElectromagnetic wave reradiationRadarOptical axis
The invention relates to the field of laser optical design, and provides an optical system. The optical system comprises a dichroscope, an image receiving unit and a laser emission unit. The image receiving unit is used for receiving target range object reflected light which is reflected by the dichroscope and is provided with preset wavelength, and forming and outputting image information so as to acquire position information of a target object. The laser emission unit is used for carrying out laser emission on the target object through the dichroscope according to the position information of the target object. The laser emission optical axis of the laser emission unit is coaxial with the reflected light receiving optical axis of the target range object reflected light. According to the embodiment of the invention, through the design that the laser emission optical axis of the laser emission unit is coaxial with the reflected light receiving optical axis of the target range object reflected light, the real-time striking accuracy and reliability of the optical system are improved; and meanwhile, through a design of a transceiving coaxial system, the structure of the device is quite simple, the size is small and design and manufacturing cost of a laser radar is reduced.
Owner:LEISHEN INTELLIGENT SYST CO LTD
Method for monitoring machine with rotating shaft
ActiveCN103576088AEasy to installGas-turbine engine testingGas turbine plantsElectricityVoltage pulse
The invention relates to a method for detecting rubbing and / or contact points on machines with rotating parts. The rotating parts form an electrical coaxial system with respect to the stationary parts of such a machine, in which system electrical voltage pulses are propagated at a characteristic speed because of the small distance between the rotating and the stationary part. Short electrical voltage pulses and / or continuous alternating voltage signals are applied between the rotating part and the stationary part, an electrical connection occurring between the rotating and the stationary part at a rubbing and / or contact point. In order to locate this rubbing and / or contact point as a point of electrical discontinuity, the period of time until the reflected pulses arrive is measured along the path of propagation of the electrical voltage pulses and / or of the continuous alternating voltage signals.
Owner:ANSALDO ENERGIA IP UK LTD
Device for testing explosion characteristic parameters of combustible gas ignited by hot dust under laser irradiation
The invention belongs to the field of coal mine underground gas and coal dust explosion research, and particularly relates to a device and a method for testing explosion characteristic parameters of combustible gas detonated by hot dust under non-contact laser irradiation. The device comprises a semiconductor continuous wave laser, an infrared thermometer and an explosion container, windows sealedby quartz glass are formed in two side walls of the explosion container; a dust bracket is arranged in the explosion container; a groove for placing dust is formed in the dust bracket; a preformed hole is formed in the explosion container; a pressure sensor, a vacuum meter, a vacuum pump, an inflation valve and a pressure reducing valve are arranged in the preformed hole; sealing means are adopted for sealing, the explosion container is also provided with a glass window; laser of the semiconductor continuous wave laser and the infrared thermometer irradiates the center of dust through the laser coaxial system, the high-speed schlieren camera systems are arranged on the two sides of the explosion container, and the semiconductor continuous wave laser, the infrared thermometer, the high-speed schlieren camera systems, the synchronous triggering system and the pressure sensor are connected with the computer control center.
Owner:TAIYUAN UNIV OF TECH
Pressurized air water generator system
ActiveCN105042917ARaise the dew point temperatureImprove water production efficiencyCompression machines with non-reversible cycleDrinking water installationPlate heat exchangerEnergy recovery
The invention discloses a pressurized air water generator system. The pressurized air water generator system comprises a compressor, an energy saver, a primary heat exchanger, a secondary heat exchanger, a condenser, a water separator, an expander and a driver. The input end of the compressor is an air inlet end. The output end of the compressor is sequentially connected with the hot side of the energy saver, the hot side of the primary heat exchanger, the hot side of the secondary heat exchanger, the condenser and the input end of the water separator, the output end of the waster separator is sequentially connected with the cold side of the energy saver, the expander, the condenser and the cold side of the secondary heat exchanger, and then a circulation path is formed. The driver is connected with the compressor and the expander and used for driving the compressor and the expander. A coaxial system is formed by the compressor, the driver and the expander. The water making energy consumption can be greatly reduced through pressurization water generation and energy recovery.
Owner:曾湄棱
Optical system of surgery microscope
InactiveCN107132647ALarge numerical apertureSatisfied with the effectMicroscopesPupilStereo microscope
The invention provides an optical system of a surgery microscope. The optical system comprises a light source, an illumination optical system and a microscopy optical system; light emitted by the light source arrives at a work area through the illumination optical system, the light source provides illumination of the work area, and the microscopy optical system amplifies an observed object through multiple sets of optical elements, and comprises a large objective set and a zoom lens set. According to the optical system in the surgery microscope, a large objective composed of two sets of lens sets is arranged in front of a light path of an objective and a compensation lens of a continual zoom stereoscopic microscope body system in the prior art, the numerical value hole diameter of a supplementary enlarging objective is amplified, the pupil entrance position is determined, and two zoom objectives of the supplementary enlarging objective and the microscope form a coaxial system.
Owner:苏州奥特科然医疗科技有限公司
A device for direct analysis of solid samples
ActiveCN103698385BReduce spatial resolutionThree-dimensional controllable positionPreparing sample for investigationMaterial analysis by electric/magnetic meansPicosecond laserSolenoid valve
Owner:NINGBO ACAD OF SCI & TECH FOR INSPECTION & QUARANTINE
High-power resilience dual drive resilience circulating water pump unit
PendingCN109723653AReduce transportation energy consumptionOvercome energy recovery power limitationsPump installationsNon-positive displacement fluid enginesCouplingClosed loop
The invention relates to a high-power resilience dual drive resilience circulating water pump unit. The high-power resilience dual drive resilience circulating water pump unit comprises a motor, a circulating water pump and a hydraulic turbine machine unit, and the motor and the hydraulic turbine machine unit are arranged at the two ends of the circulating water pump in a coaxial system mode. A pneumatic tube clutch and a gearbox are further included, the motor is connected with one end of the circulating water pump through a first diaphragm coupling, the other end of the circulating water pump is connected with an output shaft of the gearbox through the pneumatic tube clutch, and an input shaft of the gearbox is connected with an output shaft of the hydraulic turbine machine unit througha second diaphragm coupling. According to the high-power resilience dual drive resilience circulating water pump unit, own output circulating water backwater excess pressure energy of the high-power circulating water pump unit can be safely recycled, backwater excess pressure energy of a turbine drive circulating water pump unit operated parallelly can be further recycled simultaneously, resilience power limitation subjected due to rotating speed and one-way exceeding coupling normal torque limit of an original dual drive resilience circulating water pump unit is overcome, and total backwaterexcess pressure energy closed-loop recycling and circulating utilization of a circulating water conveying system when the turbine drive circulating pump operates can be met.
Owner:唐山瓦特合同能源管理有限公司
Super-resolution microscopic imaging device and method based on spatial light modulator
PendingCN114280020AResolution adjustmentEasy to adjustFluorescence/phosphorescenceMicroscopic imageSpatial light modulator
The invention discloses a super-resolution microscopic imaging device and method based on a spatial light modulator, and belongs to the field of optical microscopic imaging. Comprising a light source, a polarization beam splitter prism, an excitation light path, a loss light path and a coaxial system, a polarization beam splitter prism is arranged in front of the light source, an excitation light path is arranged at an outlet in one side of the polarization beam splitter prism, and a loss light path is arranged at an outlet in the other side of the polarization beam splitter prism; the outlet side of the excitation light path is coupled into the coaxial system; an outlet of the loss light path is coupled into the coaxial system; an imaging system is arranged on one side of the coaxial system, and a sample to be detected is arranged on the other side of the coaxial system. The system has the beneficial effects that the resolution of the whole system can be adjusted by the vortex light beam adjusted in real time under the condition that the existing light path structure is not changed, and the system can be rapidly adjusted according to different application scenes; and the structure is simple, the resolution ratio is ultrahigh, and the resolution ratio is dynamically adjustable.
Owner:XINHAI HEXING SCI & TECH DALIAN
Light path beam combining and optical fiber coupling device of spatial light laser
InactiveCN113376766AImprove stabilityReduce the difficulty of adjustmentCoupling light guidesOptical axisErbium lasers
The invention provides a light path beam combining and optical fiber coupling device of a spatial light laser. A system comprises two parts, namely a laser beam combining module and an optical fiber coupling module; the laser beam combining module comprises a cage type coaxial system and an optical system; the cage type coaxial system is used for fixing an exciter and an optical lens; the optical system is used for completing laser beam combination; and the optical fiber coupling module comprises an optical fiber coupler, a five-axis optical adjusting frame, a displacement table, an optical fiber and the like. The two lasers are fixed through the cage type coaxial system, the optical axes of the two laser beams are parallel, the first laser beam turns to reach the second beam combiner after passing through the first reflector, and the second laser beam directly reaches the second beam combiner to be combined with the first laser beam; and the combined laser is subjected to fine light path adjustment in a cage type system through a collimator and then is coupled into an optical fiber through an optical fiber coupler.
Owner:PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
Small relative aperture folding optical path coaxial system
The invention relates to a small relative aperture folding optical path coaxial system. The small relative aperture folding optical path coaxial system includes a primary mirror, a secondary mirror, abreaking mirror, a triple mirror and a focal plane, wherein the optical path is injected to the breaking mirror from infinite distance; the light arrives at the secondary mirror after reflection andconverge through the primary mirror, and then the light arrives at the break mirror after being reflected by the secondary mirror, and then the light is converged between the secondary mirror and thefolding mirror to form a primary image; and the light arrives at the triple mirror after being broken by the breaking mirror, and then the light is converged at a focal plane to form a secondary imageafter being reflected by the triple. The small relative aperture folding optical path coaxial system can guarantee that MFT satisfies the requirement when the optical system is close to the diffraction limit, at the same time uses the breaking mirror folding optical path to maximally compress the volume of the optical system, and uses a secondary image system to put the breaking mirror of the camera nearby the primary image and the exit pupil, and the primary image is closes to the primary mirror to reduce the opening size of the center of the primary mirror as smaller as possible, thus greatly reducing the volume of the system and reducing the difficulty and weight of camera development.
Owner:BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
Photoacoustic microscopic imaging device
PendingCN109620159AOptimized photoacoustic confocal adjustmentImprove experimental efficiencyDiagnostic recording/measuringSensorsUltrasonic sensorPrism
The invention relates to the technical field of microscopic imaging, and discloses a photoacoustic microscopic imaging device, which comprises a translation mounting seat, a cage plate and a Z-axis adjusting mounting seat which are connected by adopting a cage type coaxial system, wherein the translation mounting seat is provided with an optical fiber position adjusting structure which can be adjusted in X, Y and Z directions; a photoacoustic prism clamp is arranged below the Z-axis adjusting mounting seat, the photoacoustic prism clamp is provided with a photoacoustic prism group and an ultrasonic transducer, and the photoacoustic prism clamp is provided with a photoacoustic prism position adjusting structure. According to the photoacoustic microscopic imaging device, the stable cage typecoaxial system is adopted to enable a probe optical element to be installed in a common optical axis, a three-dimensional precision adjusting device is arranged to facilitate adjusting the alignmentand focus of the optical path of the probe, meanwhile,a clamping and adjusting device of the photoacoustic prism is designed, the photoacoustic coaxial confocal adjustment is optimized, the system sensitivity, the imaging resolution and the signal-to-noise ratio are improved, the adjustment is convenient, the experiment efficiency is improved, and the experiment time cost is reduced.
Owner:SHENZHEN INST OF ADVANCED TECH
Welding laser head coaxial vision lens group and welding laser coaxial system
The invention discloses a welding laser head coaxial vision lens group and a welding laser coaxial system. The welding laser head coaxial vision lens group comprises an imaging objective lens composedof a first positive and negative lens group, an imaging eyepiece composed of a second positive and negative lens group and an iris diaphragm, wherein the imaging objective lens and the imaging eyepiece are symmetrical relative to the iris diaphragm; and imaging light sequentially enters the imaging eyepiece from the imaging objective lens and the iris diaphragm. According to the design, the lensgroup with a symmetrical achromatic structure is adopted, that is, the first positive and negative lens group and the second positive and negative lens group are symmetrical relative to the iris diaphragm, so that the positive lenses in the positive and negative lens groups generate negative spherical aberration, the negative lenses generate positive spherical aberration, and thus, the spherical aberration can be well corrected by combining the positive and negative lenses.
Owner:UNITED WINNERS LASER CO LTD
Dual coax network with power distribution and mid-span tap for signals and/or power from same
PendingUS20220301742A1Power level is greatReduce decreaseElectrically conductive connectionsPower distribution line transmissionTelecommunicationsCoaxial cable
A communication network includes first and second coaxial cables. The first cable transmits forward path, downstream signals to customer devices. The second cable receives reverse path, upstream signals from customer devices. In a preferred embodiment, the downstream bandwidth exceeds 500 MHz and the upstream bandwidth exceeds 500 MHz, such as frequencies of 5 to 550 MHz in both the downstream and upstream directions. A power inserter provides a ground to first and second shielding layers of the first and second cables, a first part of a differential power signal to a center conductor of the first cable and a second part of the differential power signal to a center conductor of the second cable. A tap is also provided for the dual coaxial system, so as to provide access to the signals and / or power of the first and second cables without terminating the first and second cables.
Owner:COMMSCOPE TECH LLC
Integrated laser damage surface observation system
InactiveCN113484326ASimple structureAdjustable magnificationOptically investigating flaws/contaminationImaging processingMagnification
The invention relates to an integrated laser damage surface observation system which is characterized in that after being illuminated by an LED light source, a sample damaged surface is amplified and imaged by a microscope objective, a tubular lens and a CCD camera on a coaxial system, and is displayed in a computer in real time for image processing. Reflection-type observation can be adopted for light-proof samples, transmission-type observation can be adopted for light-transmitting samples, and the microscope objective, the tubular lens and the CCD camera are integrated through the coaxial system, so that it is guaranteed that incident light rays are coaxial; the coaxial system can be moved for focusing, so that aberration can be effectively reduced, and a light path can be adjusted conveniently. The system is simple in device and structure, is in self-assembly design, has adjustable magnification times and low cost, can measure the damage degree from the surface fine structure change level, and can be applied to the technical fields of laser damage, laser damage and the like.
Owner:NANKAI UNIV
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