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454results about How to "Guaranteed miniaturization" patented technology
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Method and device for implementing Ramsey-CPT atomic frequency standard by microwave periodic On-Off modulation VCSEL
ActiveCN101847994AImprove stabilityNarrow line widthPulse automatic controlPreselected time interval producing apparatusElectricityMicrowave
Owner:WUHAN INST OF PHYSICS & MATHEMATICS CHINESE ACADEMY OF SCI
Thin optical system, image acquisition device and electronic device
The invention discloses a thin optical system, an image acquisition device and an electronic device. The thin optical system comprises a first lens, a second lens and a third lens with refractive power sequentially from an object side to an image side, wherein the first lens has negative refractive power, and the image side surface is a concave surface near an optical axis; the second lens has refractive power, at least one surface is an aspheric surface, and the second lens is made of plastic; the third lens has positive refractive power, at least one surface is an aspheric surface, and the third lens is made of plastic. Three lenses with refractive power exist in the thin optical system. The thin optical system further comprises an aperture arranged between the first lens and the second lens. The first lens, the second lens and the third lens have no mutual relative movement on the optical axis. When a specific condition is met, the thin optical system can be designed to be retrofocus, thereby enhancing telecentric effects. The invention also discloses an image acquisition device provided with the above thin optical system and the electronic device provided with the image acquisition device.
Owner:LARGAN PRECISION
High efficiency methanol-water hydrogen production system and hydrogen production method thereof
The invention reveals a high efficiency methanol-water hydrogen production system and a hydrogen production method thereof. The system comprises a liquid reservoir vessel, a heat exchanger, a vaporizer, a reforming chamber and a separation chamber, wherein the liquid reservoir vessel, the heat exchanger, the vaporizer, the reforming chamber and the separation chamber are successively connected through pipelines, a ceramic membrane separator and a metallic palladium membrane separator are arranged in the separation chamber, gas entering into the separation chamber is pretreated by the ceramic membrane separator to obtain high purity hydrogen, and then the high purity hydrogen enters into the metallic palladium membrane separator so as to obtain hydrogen with higher purity. According to the high efficiency methanol-water hydrogen production system and the hydrogen production method thereof, the high purity hydrogen (with a purity of about 99%) is separated from reformed gas through the ceramic membrane separator at first, and then the hydrogen with higher purity (more than 99.9999%) is separated through the metallic palladium membrane separator.
Owner:广州市移电科技有限公司
Bill discrimination apparatus
InactiveCN1818978AAvoid interferenceGuaranteed miniaturizationPaper-money handling devicesPaper-money testing devicesEngineeringMagnetic characteristic
Owner:HITACHI OMRON TERMINAL SOLUTIONS CORP
Amphibious robot with integrally-driven wheel paddle legs
The invention relates to an amphibious robot, in particular to an amphibious robot with integrally-driven wheel paddle legs. The amphibious robot comprises a front buoy, a middle-front buoy, a watertight electronic cabin, a middle-back buoy, a back buoy, a frame and wheel paddle leg driving modules, wherein the front buoy, the middle-front buoy, the watertight electronic cabin, the middle-back buoy and the back buoy are sequentially arranged on the frame; the frame is provided with a plurality of groups of wheel paddle leg driving modules; two wheel paddle leg driving modules are combined into one group and are symmetrically arranged at two sides of the frame; each wheel paddle leg driving module comprises a wheel paddle leg direct driving joint and a rotary joint, and the wheel paddle leg direct driving joint is rotatably connected with the rotary joint. By adopting three groups of symmetric wheel paddle leg driving modules, the requirement of multiple movement modes of crawling and floating of the robot under the amphibious conditions is met, stability, quickness and harmony of movement of the robot are realized at the same time, and the amphibious robot has the advantages of flexible movement, strong environment adaptation, outstanding obstacle-detouring ability and the like.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
Hyperspectral imaging based non-destructive quantitative testing device for mixture powder and method
InactiveCN107064096AGuaranteed miniaturizationAchieve modularityFluorescence/phosphorescenceFluorescencePhysics
The invention discloses a hyperspectral imaging based non-destructive quantitative testing device for mixture powder and a method. The hyperspectral imaging based non-destructive quantitative testing device comprises an excitation module, a scanning module, a signal acquisition module and a control drive module. Sample stability and system miniaturization during scanning detection are guaranteed by combining a two-dimensional galvanometer and a field sweeping lens, and the whole device is modular and high in integration level and resolution; incident light rays in different positions focus to the same plane during scanning, and high-resolution sharp images are acquired; the device has high degree of freedom, near-infrared and infrared hyperspectral imaging or fluorescence and Raman hyperspectral imaging can be realized by simply replacing a light source and switching between a dichroscope and a half-transparent and half-reflecting mirror; the testing method is particularly applicable to stable, non-destructive and accurate testing of a mixture powder sample.
Owner:CHANGSHU ZJU INST FOR OPTO ELECTRONICS TECH COMMLIZATION IOTEC
Miniature dual-band-stop ultra-wide band micro-strip antenna
InactiveCN103259094AMiniaturizationGuaranteed miniaturizationSimultaneous aerial operationsRadiating elements structural formsDielectric substrateGround plate
The invention discloses a miniature dual-band-stop ultra-wide band micro-strip antenna, and relates to the field of ultra-wide band wireless communication. The miniature dual-band-stop ultra-wide band micro-strip antenna comprises a dielectric substrate; a feeder line which is arranged on the dielectric substrate and used for receiving electromagnetic waves; a radiating element which is connected with the feeder line and used for radiating the electromagnetic waves; two earth plates which are arranged on the dielectric substrate and are symmetrically arranged on the left side of the feeder line and the right side of the feeder line; two C-shaped grooves formed at the upper end of the radiating element and with different sizes; outer convex gradually-changing grooves formed at the lower end of the radiating element; and inner concave gradually-changing grooves which are matched with the outer convex gradually-changing grooves and arranged on the two earth plate respectively. The metal earth plates and the metal radiating element are designed into double gradually-changing grooves, so that a standing-wave ratio bandwidth reaches 2GHz-16GHz and 156% of a relative standing-wave ratio bandwidth is achieved. The two C-shaped grooves in the metal radiating element are 3.0 GHz-3.8GHz of a quarter of a wavelength and 5.0GHz-5.8GHz of a quarter of the wavelength, so that the notch function and the double-band-stop design of the antenna in two frequency ranges are achieved.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Zoom lens system and electronic image pickup apparatus using the same
InactiveCN101149466AMiniaturizationEnsure viewing angleTelevision system detailsColor television detailsCamera lensOptoelectronics
The present invention provides zoom lens system and electronic image pickup apparatus using the same. A zoom lens system comprises a first lens unit having a positive refractive power, a second lens unit having a negative refractive power and a third lens unit having a positive refractive power, and during zooming from a wide-angle end to a telephoto end, a space between a first lens (G1)unit and a second lens unit (G2) and a space between the second lens unit (G2) and a third lens unit (G3) are changed, the space between the first lens unit (G1)and the second lens unit (G2) is enlarged in the telephoto end as compared with the wide-angle end, and the space between the second lens unit (G2)and the third lens unit (G3)is narrowed in the telephoto end as compared with the wide-angle end.
Owner:OLYMPUS CORP
LED backlight integration and encapsulation structure and encapsulation method
InactiveCN101783340ASolve the cooling problemSolve the costSolid-state devicesSemiconductor devicesEpoxyHeat conducting
The invention relates to an LED backlight integrating encapsulation structure and encapsulation method. The encapsulation structure comprises a substrate (1) and a reflecting layer (6) arranged on the substrate (1), wherein a light-guiding diffusion plate (7) and a prism plate (8) are arranged on the substrate (1) successively provided with the reflecting layer (6) from bottom to up. The encapsulation structure is characterized in that LED blue dies are arranged on the substrate (1) in an array mode. The encapsulation method comprises the following steps: embedding the LED blue dies, coating solder paste on high conductivity substrate material, bonding dies through reflow soldering, fixing the LED blue dies on the substrate, and adopting ultrasonic wire bonding technology to connect the LED and a circuit board. The LED blue dies are covered with yellow fluorescent powder and epoxy resin and the reflecting layer is plated on the heat-conducting substrate so that the luminous efficiency and heat dissipation effect of the LED are increased and the rays are parallel and uniform. The encapsulation method is used to reduce power consumption, increase luminous efficiency, prolong the life of the device and save energy. The volume of the encapsulation structure is reduced and the backplane becomes lighter and thinner.
Owner:SHAANXI UNIV OF SCI & TECH
Optical imaging lens group
The invention provides an optical imaging lens group. The optical imaging lens group sequentially comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens from an object side to an image side, wherein the first lens has positive refractive power, and the surface of the object side of the first lens is a convex surface; the second lens has negative refractive power; and the surface of the image side of the fifth lens is a concave surface and has at least one point of inflexion. In a lens configuration mode, the optical imaging lens group has a large viewing angle, system sensitivity is reduced, and high resolution power can be obtained.
Owner:LARGAN PRECISION
High power millimeter wave upper frequency converter power amplification assembly based on three branch combining network
InactiveCN1725653AHigh synthesis efficiencyGuaranteed matching and high reliabilityModulation transferenceTransmissionPhysicsIntermediate frequency
A power amplification module of frequency conversion is featured as filtering out secondary harmonic wave component from frequency doubled signal by local oscillator filter ; carrying out frequency conversion in frequency mixer after filtered - out frequency double signal is amplified by local oscillator amplifier ; amplifying converted frequency signal by radio amplifier ; carrying out band pass filtering of radio frequency signal by filter ; using gain amplifier , power driving amplifier and power synthetic amplifier to be pre-amplification and high power amplification for outputting high power mm wave signal .
Owner:NANJING UNIV OF SCI & TECH
Gallium arsenide dual-mode band-pass filter and manufacturing method thereof
ActiveCN104466317AStrong coupling characteristicsReduce volumeWaveguide type devicesVIT signalsResonator
The invention provides a gallium arsenide dual-mode band-pass filter and a manufacturing method of the gallium arsenide dual-mode band-pass filter. According to the filter, the requirement for a miniaturized millimeter-wave circuit is met, the insertion loss is small, and the selectivity is high. According to the technical scheme, a loading branch and a lambda / 2 resonator constitute a bent branch line loading type dual-mode resonator of an annular structure; microwave signals fed through an input micro-strip are transmitted to an output micro-strip through two physical channels of the filter, so that frequency selection of a pass band is achieved, wherein according to one channel, the signals are transmitted through an input coupling branch and an output coupling branch, an extra out-of-band transmission zero is provided, and the position of the zero is adjusted through the lengths and the coupling distances of the input coupling branch and the output coupling branch, and according to the other channel, the microwave signals are coupled to the dual-mode resonator through an incoming feeder and then are coupled to the output micro-strip through the dual-mode resonator, two transmission pole pass bands and two transmission zero stop bands are formed by the dual-mode resonator, and one of the transmission pole pass bands and one of the transmission zero stop bands are provided by a dual module of the dual-mode resonator.
Owner:10TH RES INST OF CETC
Design method for partition variable thickness composite laminate
ActiveCN106874573ASatisfy maximum continuity requirementsGuaranteed miniaturizationGeometric CADDesign optimisation/simulationSequence designVariable thickness
Provided is a design method for a partition variable thickness composite laminate. In a global optimization stage of continuous variables of an airfoil class structure, with the target of lightest mass, with limitation of buckling, deformation, strength, and a plurality of kinds of angular ply proportional relations of fixation of composite laminates, through finite element modeling and a continuous variable numerical optimization technology, optimization of the integrated structure and proportion of angular plies in each partition of a composite panel is realized. In a discrete variable optimization stage, a composite variable thickness skin plate discrete variable optimization strategy is provided, to realize integrated ply sequence design of the variable thickness plate. A design result needs to ensure mechanical property of the structure and maximum continuity of the plies, and meanwhile engineering constraint and manufacturing requirement are satisfied. The method can realize organic relations of optimization information of continuous variables and discrete variables, and light weight and overall mechanical properties given by a continuous variable optimization result are ensured, and various engineering constraint and maximum continuity requirement of plies are satisfied.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
A microchemical analysis device, a micro mixing device, and a microchemical analysis system
InactiveCN101231285AWell mixedGuaranteed miniaturizationShaking/oscillating/vibrating mixersTransportation and packagingEngineeringMixing tank
By situating a mixing pot in a junction of a first solution and a second solution or after the junction in a channel to temporarily retain these solutions, and situating an analysis sensor downstream from the mixing pot to detect the result of reaction of the first solution and second solution, heterogeneous solutions are mixed so as to react within the channel, and chemical analysis of one of the solutions is performed. According to this system, before the solutions have fully flowed through the remainder of the channel following the junction, the solutions are mixed uniformly at once by the turbulent and vortex flow generated within the mixing pot.
Owner:KK TOSHIBA +1
3D integrated framework of ultrahigh frequency power converter
ActiveCN104934209AReduce volumeImprove power densityTransformers/inductances coils/windings/connectionsFixed signal inductancesTransformerEngineering
The invention provides a 3D integrated framework of an ultrahigh frequency power converter. The 3D integrated framework comprises a PCB circuit layer and a winding unit erected on the PCB circuit layer. The winding unit is connected with the PCB circuit layer through a wire. The winding unit comprises winding layers formed on a first insulating layer and a first soft magnetic thin film layer formed on a second insulating layer. The first soft magnetic thin film layer is arranged below the winding layers in a laminated mode to be used for achieving magnetic shielding between the winding layers and the PCB circuit layer. Compared with the prior art, by the adoption of 3D integration, the size of the converter is reduced, and the power density is increased; soft magnetic materials are adopted to form the magnetic shielding layer, magnetic field interference between windings and the PCB circuit layer and between the windings and external metal is solved, the Q value of the windings is increased, the alternating current resistance and high-frequency loss of an inductor and a transformer are reduced, and the working efficiency of the converter is improved; a plane magnetic element is further adopted, and the miniaturization and flattening of products are guaranteed; temperature rising of the magnetic element is reduced greatly, and the working environment of a semiconductor device is improved.
Owner:MORNSUN GUANGZHOU SCI & TECH +1
High-resolution camera lens
ActiveCN104375260APositive InflectionGood optical performanceOptical elementsCamera lensNegative refraction
A high-resolution camera lens comprises a first lens body with positive refraction power, a second lens body with negative refraction power, a third lens body with refraction power, a fourth lens body with positive refraction power and a fifth lens body with negative refraction power sequentially from the object side to the image side, wherein the object side face of the first lens body is a convex surface; the image side face of the second lens body is a concave surface; the object side face of the fourth lens body is a concave surface, and the image side face of the fourth lens body is a convex surface; the object side face of the fifth lens body is a concave surface and is provided with a point of inflexion, and the image side face of the fifth lens body is a convex surface. The lens meets the relational expressions of -1.5<f4 / f5<-0.5, -0.65<=(R9-R10) / (R9+R10)<0 and 0.5<R1 / R4<1.5, wherein f4 and f5 are the focal lengths of the fourth lens body and the fifth lens body respectively, R9 and R10 are the radius of curvature of the object side face and the radius of curvature of the image side face of the fifth lens body respectively, R1 is the radius of curvature of the object side face of the first lens body, and R4 is the radius of curvature of the image side face of the second lens body.
Owner:ZHEJIANG SUNNY OPTICAL CO LTD
Three-unit zoom lens system and image pickup apparatus using the same
InactiveCN101344636AMake sure the zoom ratioGuaranteed miniaturizationTelevision system detailsColor television detailsConditional expressionOptoelectronics
The present invention relates to a three-unit zoom lens system and an image pick-up device using the same. A three-unit zoom lens system includes in order from an object side thereof a first lens unit G1 having a negative refracting power, a second lens unit G2 having a positive refracting power, a third lens unit G3 having a negative refracting power, and an aperture stop which is at an image side of the first lens unit G1, and at the object side of a lens surface nearest to the image side of the second lens unit G2, and which moves integrally with the second lens unit. At a time of zooming from a wide angle end to a telephoto end, a distance between the first lens unit G1 and the second lens unit G2 is narrowed, and a distance between the second lens unit G2 and the third lens unit G3 changes. The second lens unit G2 moves toward the object side at the time of zooming from the wide angle end to the telephoto end. The third lens unit G3 moves to be positioned at the object side at the telephoto end, with respect to the wide angle end. The three-unit zoom lens system satisfies predetermined conditional expressions.
Owner:OLYMPUS CORP
Image stabilizer
InactiveCN101335492AGuaranteed miniaturizationReduce the amount of errorPrintersPiezoelectric/electrostriction/magnetostriction machinesLocation detectionMiniaturization
The present invention provides a shake correcting device, which can ensure the device miniaturization and accurately detect the relative position of a camera shooting element. An X-axis actuator (320x) and a Y-axis actuator (320y) are arranged near respective positions of fictitious intersection points (P) at length directional axis (Lx, Ly) but not intersection, a position detecting component for detecting the relative position of CCD(31) is arranged in areas (E) containing fictitious intersection points (P) and surrounded by each one end of the X-axis actuator (320x) and the Y-axis actuator (320y), thus the device can be ensure miniaturization by a dead space generated by the arrangements of the X-axis actuator (320x) and the Y-axis actuator (320y). Furthermore, the present invention can reduce error quantity by arranging the position detecting component near the position of CCD(31), and accurately detect the relative position of CCD(31).
Owner:OLYMPUS CORP
Containment passive pressure suppression system
InactiveCN107293335AAlleviate the boost effectLower the altitudeNuclear energy generationShieldingNuclear engineeringNuclear power
The invention discloses a containment passive pressure suppression system. A pressure suppression pool of the system comprises a water space and an air space, wherein the water space is arranged around a reactor pit and communicates with a containment drywell; cooling water is contained in the water space; the initial water level in the water space is higher than a reactor core in the reactor pit; the air space is arranged around the water space and communicates with the water space. The water space and the air space are in transverse arrangement, so that the height of the pressure suppression pool is reduced, so that the space volume of the pressure suppression pool occupied by the containment is reduced; the dimension of the containment can be further reduced; meanwhile, the duplex isolation function can be realized; the realization of the radiation shielding function is facilitated, so that the containment can use the single layer structure; the structure is simpler; the small-size design of the containment of a marine nuclear power station is facilitated. In addition, the air isolation is realized between the water space and the air space; the air-water isolation can also be ensured in the swinging environment.
Owner:CHINA NUCLEAR POWER TECH RES INST CO LTD +2
Dual-polarized antenna applicable to wireless local area network and manufacturing method of dual-polarized antenna
InactiveCN102842755AHigh Receive Diversity GainReduce in quantityRadiating elements structural formsAntenna earthingsDielectric plateMiniaturization
The invention provides a dual-polarized antenna applicable to a wireless local area network and a manufacturing method of the dual-polarized antenna. The antenna comprises two dielectric plates and a grounding plate, which are the same square and overlapped and fixedly connected with one another in the same manner; the upper surface of the first dielectric plate is a metal radiation patch located at the center; two micro-strip feeder lines, which are vertical with each other and are respectively located on the two adjacent edges of a square, are arranged between the two dielectric plates; symmetrical convex rectangles are formed on the four edges of the metal radiation patch; and four cross-shaped grooves in center symmetry are arranged on the grounding plate. The manufacturing method of the antenna comprises the following steps of: respectively manufacturing single-faced and double-faced copper-coated plates to be square plates which are taken as the first and second dielectric plates; etching the first dielectric plate to obtain the metal radiation patch; etching the second dielectric plate to obtain the two micro-strip feeder lines, wherein the bottom face of the second dielectric plate is taken as the grounding plate; machining the four cross-shaped grooves in center symmetry on the bottom face of the grounding plate; connecting the dielectric plates in a laminated manner; and mounting a feeder interface. The dual-polarized antenna provided by the invention is simple in structure and small in thickness, is obviously minimized while property indexes are improved and is strong in maneuverability, and antenna parameters are convenient to adjust.
Owner:ZHEJIANG UNIVIEW TECH CO LTD
Optical imaging lens group, image capturing device and electronic device
ActiveCN105739060ALittle change in shapeAvoid Surface Reflection IssuesOptical elementsImage captureNegative refraction
The invention discloses an optical imaging lens group, an image capturing device and an electronic device. The optical imaging lens group comprises, from the object side to the image side, a first lens, a second lens, a third lens, a fourth lens and a fifth lens which have refraction power. The first lens has positive refraction power and an object side surface, close to an optical axis, of the first lens is a convex surface. The second lens has positive refraction power and an object side surface, close to an optical axis, of the second lens is a convex surface. The third lens has refraction power. The fourth lens has positive refraction power; an object side surface, close to an optical axis, of the fourth lens is a convex surface; an image side surface close to the optical axis is a convex surface; and the object side surface and image side surface are both aspheric surfaces. The fifth lens has negative refraction power; an object side surface, close to an optical axis, of the fifth lens is a concave surface; an image side surface close to the optical axis is a concave surface; the image side surface, away from the axis, is provided with a convex surface; the object side surface and the image side surface are both aspheric surfaces. Any two of the above adjacent lenses are spaced by air. The invention also discloses an image capturing device provided with the optical imaging lens group and an electronic device provided with the image capturing device.
Owner:LARGAN PRECISION
An optical lens, an image capturing apparatus and an electronic apparatus
The invention discloses an optical lens, an image capturing apparatus and an electronic apparatus. The optical lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens in order from an object side to an image side. The first lens has negative refractive power, and the portion, near an optical axis, of the surface of an image side of the first lens is a concave surface. The second lens has refractive power. The third lens has positive refractive power. The fourth lens has positive refractive power, and the portion, near the optical axis, of the surface of an image side of the fourth lens is a convex surface. The both surfaces of the fourth lens are aspherical. The fifth lens has negative refractive power, and the portion, near the optical axis, of the surface of an image side of the fifth lens is a concave surface. The portion, away from the optical axis, of the surface of an image side of the fifth lens includes at least one convex surface. The both surfaces of the fifth lens are aspherical. The sixth lens has refractive power, and the portion, near the optical axis, of the surface of an image side of the sixth lens is a concave surface. The portion, away from the optical axis, of the surface of an image side of the sixth lens includes at least one convex surface. The both surfaces of the sixth lens are aspherical. When a specific condition is satisfied, the sensitivity of the optical lens is lowered, and a visual angle of the optical lens is enlarged.
Owner:LARGAN PRECISION
Terahertz quantum cascade laser of multiple-mode interface structure and manufacturing method thereof
The invention relates to a terahertz quantum cascade laser of a multiple-mode interface structure. The terahertz quantum cascade laser comprises a multiple-mode interference wave guiding structure. The multiple-mode interference wave guiding structure comprises a semi-insulating substrate, a buffer layer, a lower contact layer, an active region, an upper contact layer and an upper metal layer in the perpendicular direction from bottom to top in sequence, wherein the active region, the upper contact layer and the upper metal layer form a ridge type structure on the lower contact layer; lower metal layers are arranged on the two sides of the ridge type structure; the upper metal layer forms a multiple-mode wave guide and output wave guides through the wet etching method; the output wave guides are single-mode wave guides and located at the centers of the two ends of the multiple-mode wave guide, and the width of each output wave guide is smaller than that of the multiple-mode wave guide. The invention further relates to a manufacturing method of the THz QCL. By the adoption of the THz QCL of the multiple-mode interface structure and the manufacturing method of the THz QCL, the light-emitting power of the THz QCL can be increased, the quality of an emitted light beam is not reduced, collection efficiency is not reduced, the device is kept small, and cost is reduced.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
Battery pack
InactiveCN102725881AAvoid prominent situationsGuaranteed miniaturizationCell temperature controlCell component detailsBattery packElectrical and Electronics engineering
In order to simplify the assembly of a battery back while adopting a configuration which efficiently cools heat-generating parts, a battery pack is provided with a main circuit board (40) which is connected to a unit cell (11) of the battery block (10), and with a slab-shaped radiator block (42) which is fixed to the heat-generating part (41) in a heat-coupled state. An encapsulating case (30) is formed in a box shape with a greater width than thickness, and comprising two surface plates (33) facing one another and sidewalls which close-off the outer periphery of said surface plates (33). The radiator block (42) is separated on the inside of the encapsulating case (30) so as not to overlap with the battery block (10), and the radiator block (42) is positioned in the inside of the encapsulating case (30) in parallel with the surface plate (33) and in a heat-coupled state with the surface facing the surface plate (33). The heat generated by the heat-generating part (41) is absorbed by the radiator block (42) and radiated from the surface plate (33).
Owner:SANYO ELECTRIC CO LTD
Small atmosphere laser communication device and method
The invention discloses a small atmosphere laser communication device and method. The device comprises a small atmosphere laser communication machine and a sighting telescope. The small atmosphere laser communication machine comprises an optical window, a beam splitting prism, a semiconductor laser, an Nd: YAG laser, a PIN photodiode and a light spot tracker. Besides traditional laser communication, a beam aligning unit is added, and accordingly, by the aid of visual reflection of detection beams emitted by the Nd: YAG laser on a four-quadrant diagram of the four-quadrant light spot tracker, the light spot center is adjusted to the four-quadrant center rapidly through a manual or servo system, and rapid alignment of the communication transmission end and the communication receiving end is achieved. The device and the method have the advantages of being small in size, low in weight, stable in communication, fast in alignment speed and the like.
Owner:西安应用光学研究所
Electronic sphygmomanometer
The invention provides an electronic sphygmomanometer which comprises a body and a cuff, wherein the cuff comprises a lining plate; at least one fixed clamping hook is arranged at one end of the lining plate, and a releasable clamping hook is arranged at the other end of the lining plate; each of the fixed clamping hook and the releasable clamping hook comprises a hooking part and a supporting arm; shoulder parts are extended from two ends of the supporting arm of the releasable clamping hook, and the releasable clamping hook is provided with a gap; the bottom of a lower shell is provided with a fixed end clamping groove and a releasable end clamping groove corresponding to the fixed clamping hook and the releasable clamping hook, and a blocking part is arranged on one side of the releasable end clamping groove buckled with the hooking part; an elastic sheet is arranged close to the releasable end clamping groove on the inner surface of the bottom of the lower shell, the elastic sheet comprises a touch part and an elastic part, and the touch part covers a part of the releasable end clamping groove; and the side wall of the lower shell is provided with a through hole, and the through hole is opposite to the touch end face of the touch part of the elastic sheet through the gap in the releasable clamping hook. The electronic sphygmomanometer ensures reliable connection between the cuff and the body in use, is convenient to detach and simple in structure, and is integrally miniaturized.
Owner:ANDON HEALTH +1
Amphibious robot
PendingCN111251797AReduce complexityImprove passabilityAmphibious vehiclesUnderwater vesselsBuoyancy regulationClassical mechanics
The invention discloses an amphibious robot, which comprises a body frame, a walking leg unit, a swimming leg unit, a buoyancy cabin and an electronic cabin. The walking leg unit comprises three pairsof six walking legs which are connected to the body frame in a radial mode; the swimming leg unit comprises swimming legs arranged at the tail end of the body frame in pairs; the buoyancy cabin is arranged on the lower part of the body frame, and floating or sinking of the amphibious robot is achieved through water pumping and draining; and a control module in the electronic cabin controls the movement postures of the walking leg unit and the swimming leg unit and the water pumping and draining actions of the buoyancy cabin according to a received instruction, the amphibious robot operation posture provided by a sensor module and land and water environment information to which the amphibious robot belongs. In water, two driving modes are provided for providing advancing power for the amphibious robot, and one driving mode is achieved through swinging of the swimming leg unit; and the other mode is that the gravity center of the amphibious robot is changed through buoyancy adjustment of the buoyancy cabin in cooperation with front-back swinging of the walking legs to achieve low-energy consumption and long-distance gliding migration of the amphibious robot.
Owner:SHENZHEN UNIV
Micro tooth body preparation automatic cutting device in laser-type oral cavity
The invention discloses a micro tooth body preparation automatic cutting device in a laser-type oral cavity. The device comprises a motor driving component (1), an optical path component (2) and a shell component (3), wherein the optical path component (2) implements the optical path conversion by adopting a vibrating mirror (24), a convex lens (25) and a reflection mirror (26); through controlling the rotation of two degree-of-freedoms of the vibrating mirror (24) and the movement of one degree-of-freedom of the convex lens (25), the movement of three degree-of-freedoms of a laser focus light spot relative to a cut tooth can be realized, the optical structure principle is simple, optical elements are in space linear distribution, and occupy a small space, which is beneficial to the miniaturization of the whole device; the motor driving component (1) adopts the matching of a linear motor and a guide rod, on one hand, a spherical surface decoupling mechanism (21) is driven, thus the vibrating mirror (24) completes the rotation of two degree-of-freedoms, on the other hand, a convex lens frame (23) is driven, thus the convex lens (25) completes the rotation of one degree-of-freedom. The device has no noise in cutting process, and has little damage to the tooth near tissue, the tooth surface is smooth after cutting, and the microscopic feature is good.
Owner:PEKING UNIV SCHOOL OF STOMATOLOGY
Array substrate and display device
The invention discloses an array substrate, and relates to the technical field of display. The array substrate comprises a plurality of grid lines, data lines and a plurality of pixel units defined by the crossing of the grid lines and the data lines. Each pixel unit comprises a thin film transistor, a pixel electrode and a common electrode. The data lines are not overlapped with the common electrodes. The invention also discloses a display device comprising the array substrate. According to the array substrate, the problems of poor correlation and low power consumption caused by the coupling of the data lines and the common electrodes are solved, and a higher aperture ratio and higher resolution can also be ensured.
Owner:BOE TECH GRP CO LTD
Optical camera system, image pickup device and electronic device
ActiveCN105842827AWiden perspectiveShorten the lengthOptical elementsNegative refractionOptical axis
The invention discloses an optical camera system, an image pickup device and an electronic device. The optical camera system sequentially comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens with refraction power from an object side to an image side. The first lens has refraction power, and the object-side surface is convex near the optical axis. The second lens has positive refraction power, the image-side surface is convex near the optical axis, and the second lens contains at least one aspheric surface. The third lens has negative refraction power, the object-side surface is concave near the optical axis, and the third lens contains at least one aspheric surface. The fourth lens has positive refraction power, the object-side surface is concave near the optical axis, the image-side surface is convex near the optical axis, and the fourth lens contains at least one aspheric surface. The fifth lens has negative refraction power, the image-side surface is concave near the optical axis, the image-side surface has at least one convex surface away from the optical axis, and the fifth lens has two aspheric surfaces. The invention further discloses an image pickup device comprising the optical camera system, and an electronic device comprising the image pickup device.
Owner:LARGAN PRECISION
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