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66 results about "Equipotential surface" patented technology
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Equipotential surfaces are surfaces of constant scalar potential. They are used to visualize an-dimensional scalar potential function in dimensional space. The gradient of the potential, denoting the direction of greatest increase, is perpendicular to the surface. In electrostatics, the work done to move a charge from any point on the equipotential surface to any other point on the equipotential surface is zero since they are at the same potential. Furthermore, equipotential surfaces are always perpendicular to the net electric field lines passing through it. The term is used in electrostatics, fluid mechanics, and geodesy.
Image formation apparatus
InactiveUS6879096B1High display-quality configurationSatisfies requirementTelevision system detailsCathode-ray/electron-beam tube electrical connectionEquipotential surfaceElectron source
An image formation apparatus is disclosed which includes, within an enclosure configured by a pair of substrates placed face to face and an external frame placed between the substrates, an electron source placed on one of the pair of substrates, an image formation material placed on the other substrate, and spacers placed between the substrates, characterized in that the spacers and the external frame is conductive and device is provided for electrically connecting the spacers and the external frame so that the equipotential surfaces between the spacers and the external frame are quasi-parallel when driven.
Owner:CANON KK
Enhancements to optical flat panel displays
InactiveUS7042618B2Good colorStatic indicating devicesColor television detailsEquipotential surfacePotential difference
A circuit for implementing a registration-free, contiguous conductive plane. A circuit may include a plurality of conductive structures in a first plane. The circuit may further include a contiguous conductive equipotential surface in a second plane parallel to the first plane. The circuit may further include activation means configured to adjust an electric field between the first and second planes thereby activating one or more structures in the first plane by increasing a potential difference between the first and second planes to a threshold level deemed to constitute an active state. The circuit may further include deactivation means configured to adjust the electric field between the first and second planes thereby deactivating one or more structures in the first plane by decreasing the potential difference between the first and second planes below a threshold level deemed to constitute a deactivation state.
Owner:RAMBUS DELAWARE
Method for localizing a medical instrument introduced into the body of an examination object
InactiveUS20070066889A1Low costConvenient recordingDiagnostic recording/measuringSensorsEquipotential surface3d image
A method for localizing a medical instrument, in particular a catheter or guide wire, introduced into the body of an examination object, comprising the steps: arrangement of at least four electrodes on the body of the examination object, recording of three-dimensional image data of a body region of the examination object that is of interest by means of an imaging medical examination device, determination of a model of the electrical conductivity of the examination object as a function of the recorded three-dimensional image data, determination of the electric field distribution when a voltage and / or current is / are applied for at least three different electrode pairs formed from the four electrodes as a function of the conductivity model and the spatial positions of the electrodes, not all the electrodes lying in one plane, application of a voltage and / or a current at each electrode pair and determination of a voltage value at an electrode of the medical instrument for the at least three electrode pairs and determination of the spatial position of the medical instrument as the point of intersection of the equipotential surfaces assigned to the at least three voltage values at the electrode of the medical instrument.
Owner:SIEMENS HEALTHCARE GMBH
Enhancements to optical flat panel displays
InactiveUS20050063037A1Good colorStatic indicating devicesColor television detailsEquipotential surfacePotential difference
A circuit for implementing a registration-free, contiguous conductive plane. A circuit may include a plurality of conductive structures in a first plane. The circuit may further include a contiguous conductive equipotential surface in a second plane parallel to the first plane. The circuit may further include activation means configured to adjust an electric field between the first and second planes thereby activating one or more structures in the first plana by increasing a potential difference between the first and second planes to a threshold level deemed to constitute an active state. The circuit may further include deactivation means configured to adjust the electric field between the first and second planes thereby deactivating one or more structures in the first plane by decreasing the potential difference between the first and second planes below a threshold level deemed to constitute a deactivation state.
Owner:RAMBUS DELAWARE
Image formation apparatus
InactiveUS20050082963A1Configuration highFulfil requirementsTelevision system detailsCathode-ray/electron-beam tube electrical connectionEquipotential surfaceElectron source
An image formation apparatus is disclosed which includes, within an enclosure configured by a pair of substrates placed face to face and an external frame placed between the substrates, an electron source placed on one of the pair of substrates, an image formation material placed on the other substrate, and spacers placed between the substrates, characterized in that the spacers and the external frame is conductive and device is provided for electrically connecting the spacers and the external frame so that the equipotential surfaces between the spacers and the external frame are quasi-parallel when driven.
Owner:CANON KK
Organic Light Emitting Device
ActiveUS20080272689A1Reduce angle dependency of emission brightnessLittle changeDischarge tube luminescnet screensElectroluminescent light sourcesEquipotential surfaceOrganic light emitting device
The present invention provides an organic light emitting device which can reduce the angle dependency of the emission brightness and the emission color, and has a small change in the emission brightness and the emission color with respect to film thickness fluctuations, and can increase use efficiency of the light. The organic light emitting device of the present invention has a plurality of emission layers 3 between an anode 1 and a cathode 2, and the emission layers 3 are separated from each other by an equipotential surface forming layer 4 or a charge generating layer 4. The feature of the present invention resides in that the organic light emitting device has, at least either inside or outside the device, a light scattering means 5 for scattering light emitted from the emission layers 3. The organic light emitting device can reduce the angle dependency of the emission brightness and the emission color by outputting the light emitted from the emission layers in a condition where the light is scattered by the light scattering means.
Owner:ROHM CO LTD +1
Electron microscope and electron bean inspection system.
InactiveUS20070181808A1Shorten inspection timeDetecting defect of quickly and accuratelyMaterial analysis using wave/particle radiationElectric discharge tubesEquipotential surfaceImaging interpretation
While an image obtained by a general electron microscope is affected by the shape and material of an object specimen, an image obtained from mirror electrons is affected by the shape of an equipotential surface on which the mirror electrons are reflected, thereby the image interpretation is complicated. A mirror electron microscope of the present invention is provided with the following means for controlling a reflecting plane of the mirror electrons according to the structure of an object pattern to be measured or a concerned defect.1) Means for controlling a potential difference between a specimen and an electron source equivalent to a height of a reflecting plane of a mirror electron beam according to a type, an operation condition of an electron source, and a type of a pattern on a specimen.2) Means for controlling an energy distribution of an illuminating beam with an energy filter 9 disposed in an illuminating system.It is thus possible to inspect a specimen according to a size and a potential of a pattern, which are distinguished from others.
Owner:HITACHI HIGH-TECH CORP
Autonomous navigation system and method of unmanned aerial vehicle based on electric field equipotential surface of extra-high voltage line region
ActiveCN108469838ARealize autonomous inspectionSolve out of controlNavigation by speed/acceleration measurementsPosition/course control in three dimensionsEquipotential surfaceAutonomous Navigation System
The invention relates to an autonomous navigation system and method of an unmanned aerial vehicle based on an electric field equipotential surface of a super-high voltage line area. The navigation system comprises an unmanned aerial vehicle body, an electromagnetic field measuring module, a flight control subsystem and an inertial navigation subsystem. When the system works, the unmanned aerial vehicle flies to the original position, and the electromagnetic field measuring module acquires an initial electric field value; the inertial navigation subsystem plans the flight path of the unmanned aerial vehicle according to the contour value diagram of the electric field distribution; during the flying process, the electromagnetic field measuring module acquires the electric field value of thecurrent position; the airborne processing module in the flight control subsystem judges the difference between the set fluctuation threshold value and the initial electric field value according to theflight condition, and sends an instruction to the flight control module to adjust the flying height and the direction of the unmanned aerial vehicle; based on the flight path, the unmanned aerial vehicle flies in depth along a contour of a certain equipotential surface. The system solves the problem of runaway of the unmanned aerial vehicle caused by the strong electromagnetic field, and has theadvantages of autonomous navigation under the environment of super-high voltage transmission lines, stable navigation, accurate navigation and the like.
Owner:SHANGHAI UNIV OF ENG SCI
Semiconductor inspecting apparatus
ActiveUS20110095185A1Avoid position deviationPrevent deviationMaterial analysis using wave/particle radiationSemiconductor/solid-state device testing/measurementEquipotential surfaceIrradiation
In the case of inspecting samples having different sizes by means of a semiconductor inspecting apparatus, a primary electron beam bends since distribution is disturbed on an equipotential surface at the vicinity of the sample at the time of inspecting vicinities of the sample, and what is called a positional shift is generated. A potential correcting electrode is arranged outside the sample and at a position lower than the sample lower surface, and a potential lower than that of the sample is applied. Furthermore, a voltage to be applied to the potential correcting electrode is controlled corresponding to a distance between the inspecting position and a sample outer end, sample thickness and irradiation conditions of the primary electron beam.
Owner:HITACHI HIGH-TECH CORP
Lightning conductor system for wind generator blades comprising carbon fibre laminates
InactiveCN101094986AReliable electrical connectionAvoid arcingMaterial nanotechnologyInstallation of lighting conductorsGlass fiberEquipotential surface
The invention relates to a lightning conductor system for a wind generator blade, comprising several connections which are disposed on the carbon fibre laminates (2) of the blade (1), forming an equipotential surface on the flanges (4) of the beam (10) by means of branches from a main cable (6) through respective auxiliary cables (5). According to the invention, the auxiliary cables are connected to flat metal bars (3), which provide a direct connection with the above-mentioned carbon fibre laminates (2), and are installed during the process involving the lamination and curing of the blade (1). Alternatively, the auxiliary cables are connected to preferably-conical metal pins which pass through the hybrid laminate. A nanocomposite-based conductive resin (11) is disposed immediately adjacent to the connection. In the case of a hybrid laminate comprising layers of carbon fibre and layers of glass fibre, the different layers are made equipotential by means of holes, discontinuous surfaces or hollow openings in the glass fibre layers.
Owner:GAMESA INNOVATION & TECH SA
Method for calculating underground water seepage flow based on equipotential surface
ActiveCN102063577AImprove calculation accuracyAvoid calculation errorsSpecial data processing applicationsEquipotential surfaceWater flow
The invention discloses a method for calculating underground water seepage flow based on an equipotential surface. The method comprising the following steps: (1.1) solving a seepage field, namely solving the seepage field by adopting the conventional finite element method and solving the water head values of the nodes of each unit; (1.2) determining the water head value of the equipotential surface, defining the water head value of the equipotential surface to be determined as h0, and forming the equipotential surface by the nodes with the same water head value; and (1.3) executing the step (1.3.1) on any unit or a unit No. ie in the seepage field, wherein the step (1.3.1) includes that the relations between the water head values of the nodes and h0 are judged. The method disclosed by the invention is a new method which solves the underground water seepage flow by utilizing a finite element and has the advantages that integral is directly carried out on the equipotential surface, the section through which water flows is vertical to the flow direction, no component interference is produced and calculation accuracy is high. The flow passing through the equipotential surface of the water head is in just one direction, thus avoiding that not only the direction of gradient of the water head but also the direction of an area vector are required to be determined in a middle section method.
Owner:YELLOW RIVER ENG CONSULTING
Monitoring and forecasting method and device for water bursting hazards on roof and floor of coal working face
The invention discloses a monitoring and forecasting method for water bursting hazards on the roof and floor of a coal working face. The method comprises the steps that electrodes are arranged in drilled holes as power supply and measurement electrodes, and two infinite electrodes are arranged in roadways as auxiliary power supply and measurement electrodes, so that a power supply and measurement system is formed; the power supply electrodes feed direct currents into strata to establish an artificial electric field, and the other electrodes in the drilled holes in the same stratum measure potential simultaneously; the power supply electrodes are changed, potential measurement is repeated until all the electrodes complete power supply, and one-time monitoring measurement is completed; when coal mining is not started on the coal working face, the obtained potential serves as a background value; in the working face mining process, stress of the strata changes, cracks are generated to form water migration pathways, distribution of equipotential surfaces of a point power supply field will be changed, and information of water bursting around the drilled holes is obtained by monitoring the change. The invention further discloses a monitoring and forecasting device. By the adoption of the monitoring and forecasting method and device, change of geoelectric features around the drilled holes can be monitored in real time.
Owner:XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
Rotating asynchronous converter
InactiveUS20060006755A1Improve efficiencyPossible to achieveSynchronous generatorsWindings insulation shape/form/constructionEquipotential surfaceEngineering
A rotating asynchronous converter and a generator device having a first stator connected to a first AC network with a first frequency f1, and a second stator connected to a second AC network with a second frequency f2. The converter has a rotor which rotates in dependence of the first and second frequencies f1, f2. The stators each have at least one winding formed of at least one current-carrying conductor, and an insulation system, formed of semiconducting layers each forming an equipotential surface, and a solid insulation between the semiconducting layers.
Owner:ABB (SCHWEIZ) AG
Immersion lens with magnetic shield for charged particle beam system
InactiveUS6768117B1Thermometer detailsStability-of-path spectrometersEquipotential surfaceLithographic artist
An immersion lens for a charged particle beam lithography system includes a magnetically floating shield that limits a deflection magnetic field from creating eddy currents in electrically conductive components of the system downstream from the shield. The surface of the shield lies parallel or approximately parallel to a magnetic equipotential surface of the focusing magnetic field so that the shield does not affect the focusing magnetic field. The shield is, e.g., a ferrite disk or a hollow ferrite cone defining a central bore for passage of the charged particle beam.
Owner:APPLIED MATERIALS INC
Image display device
InactiveUS20020063535A1Static indicating devicesImage/pattern display tubesEquipotential surfaceElectron source
An image display device comprising an electron source and a display member for displaying an image by irradiation with electrons emitted from the electron source is provided, which is characterized in that the electron source has a plurality of units provided with a higher voltage electrode disposed on a substrate, lower voltage electrodes provided in parallel on both sides of the higher voltage electrode across the higher voltage device electrode and electron-emitting areas located between each of the lower voltage electrodes and the higher voltage electrode, electron beams emitted from each of the electron-emitting areas in each unit cross with each other, and an equipotential surface to be formed between the substrate and the display member has an area protruding to the display member side on the higher voltage electrode.
Owner:CANON KK
Lightning conduction system for wind turbine blades with carbon fiber laminates
InactiveUS9051921B2Reduces current fractionInstallation of lighting conductorsMachines/enginesFiberEquipotential surface
A lightning rod system for wind turbine blades formed by various connections set up on carbon fiber laminates on the blade, equipotentializing the surface of the flanges of the beam through the deviations of a primary cable with the respective auxiliary cables, carried out with the use of a device having terminals that are connected between the ends of the cited auxiliary cable on the connection between the carbon laminates and the conductor cable or primary cable and which has elevated inductance so that it reduces the passage of current across the carbon laminate and favors the conduction through the metal cable.
Owner:GAMESA INNOVATION & TECH SA
Geological structure physical simulation experiment device for ultra-high gravity field of large-scale centrifugal machine
ActiveCN109493705ASimulation is accurateRealize the simulation research of hypergravity physicsEducational modelsEquipotential surfacePower factor
Owner:ZHEJIANG UNIV
A method for configuring a long-distance wireless power transmission coil applied in a high-voltage occasion
ActiveCN105449874ANo insulation problemsImprove transmission efficiencyCircuit arrangementsEquipotential surfaceLow voltage
The invention relates to a method for configuring a long-distance wireless power transmission coil applied in a high-voltage occasion. A transmitting coil and a receiving coil are respectively arranged at a high potential and a ground potential. High-voltage field distribution forms between the transmitting coil and the receiving coil, and a relay coil is arranged between the transmitting coil and the receiving coil. The relay coil is in a thin type curved surface shape. The curved surface shape is distributed in consistence with an equipotential surface of the high voltage field. According to the invention, the structure is simple and easy to realize; wireless power transmission efficiency can be raised; and insulation at a high-voltage side and the low-voltage side can be ensured.
Owner:FUZHOU UNIV
Electric potential therapeutic equipment
ActiveCN101389375AAppropriate and stable treatment effectExternal electrodesEquipotential surfaceElectrical devices
Provided is an electric potential treatment device which can exhibit appropriate and stabilized treatment effect while suppressing impact on the electric field by the surrounding wall or electric apparatus. Along the equipotential surface (P2) of an electric field formed around a person (C) under treatment by a high voltage applied to main electrodes (4-6), a protective electrode (7) having the substantially same potential level as that on the equipotential surface (P2) is arranged. Even if a wall (W), or the like, is located in the vicinity of the person (C) under treatment, equipotential surfaces (P1-P2) located between the protective electrode (7) and the person (C) under treatment, i.e. an electric field formed around the vicinity of the person (C) under treatment, is protected by the protective electrode (7) and thereby appropriate and stabilized treatment effect is exhibited.
Owner:HAKUJU INST FOR HEALTH SCI
Rotating asynchronous converter
InactiveUS7259491B2Improve efficiencyPossible to achieveSynchronous generatorsWindings insulation shape/form/constructionEquipotential surfaceEngineering
A rotating asynchronous converter and a generator device having a first stator connected to a first AC network with a first frequency f1, and a second stator connected to a second AC network with a second frequency f2. The converter has a rotor which rotates in dependence of the first and second frequencies f1, f2. The stators each have at least one winding formed of at least one current-carrying conductor, and an insulation system, formed of semiconducting layers each forming an equipotential surface, and a solid insulation between the semiconducting layers.
Owner:ABB (SCHWEIZ) AG
Self-adapting contact probe set of multiple-set measurement
ActiveCN101441227AAvoid changeEasy to useResistance/reactance/impedenceElectrical measurement instrument detailsEquipotential surfaceContact force
The invention relates to a self-adapting contact probe set, which is characterized in that four probe assemblies with the surrounding centers distributed in 90 degrees are included, wherein each of the probe assemblies comprises probe components and a moving device, and the probe components are arranged on the moving device which can move forward to the center or reset under dynamic function. Each of the probe components comprises a base body, a spring and a probe; wherein the base body is provide with two shoulder holes, and each shoulder hole is internally provided with a probe and a spring. Under the function of the spring, one end of the probe extends out of the shoulder hole. The self-adapting contact probe set can not only finish sample measurement at one time and make sure that the contact force of each set of probe meets standard requirements, but also avoid the change of the equipotential surface of the sample in the rotating detection process. In addition, the self-adapting contact probe set is characterized by convenient use, high measurement accuracy, good data reproduction quality, low requirement of sample processing accuracy, etc.
Owner:BEIJING INSPECT TECH
Apparatus and method for generating ions of an ion implanter
InactiveUS20070152165A1Reduce residingIncrease volumeElectric arc lampsSemiconductor/solid-state device manufacturingEquipotential surfaceVoltage source
An ion generator of an ion implanter, the ion generator includes: an arc chamber provided with a slit for ion extraction and forming an equipotential surface with a first voltage; a filament installed inside of the arc chamber, heated to a predetermined temperature and generating electrons; magnetic field devices provided outside of the arc chamber and supplied with a current from a current source and generating a magnetic field in the arc chamber; a gas discharge device injecting a predetermined gas into the arc chamber; and an electrode positioned opposite to the slit and supplied with a second voltage having a high voltage than the first voltage from a voltage source and generating a magnetic field in the arc chamber.
Owner:SAMSUNG ELECTRONICS CO LTD
Semiconductor inspecting apparatus
ActiveUS20120261589A1Prevent deviationAvoid position deviationMaterial analysis using wave/particle radiationSemiconductor/solid-state device testing/measurementEquipotential surfaceIrradiation
In the case of inspecting samples having different sizes by means of a semiconductor inspecting apparatus, a primary electron beam bends since distribution is disturbed on an equipotential surface at the vicinity of the sample at the time of inspecting vicinities of the sample, and what is called a positional shift is generated. A potential correcting electrode is arranged outside the sample and at a position lower than the sample lower surface, and a potential lower than that of the sample is applied. Furthermore, a voltage to be applied to the potential correcting electrode is controlled corresponding to a distance between the inspecting position and a sample outer end, sample thickness and irradiation conditions of the primary electron beam.
Owner:HITACHI HIGH-TECH CORP
Microwave plasma reactor used for manufacturing monocrystal diamond and diffusion device thereof
ActiveCN110468449AQuality improvementEvenly distributedPolycrystalline material growthFrom chemically reactive gasesEquipotential surfaceMicrowave
The invention discloses a microwave plasma reactor used for manufacturing a monocrystal diamond and a diffusion device thereof. The diffusion device comprises a diffusion base, a gas inlet pipe groupand medium glass, wherein the diffusion base is provided with a conical wall body; the upper edge of the wall body is provided with a first round flange; the lower edge of the wall body is provided with a second round flange which is parallel to the first round flange; the enclosure of the wall body defines a diffusion opening therein; the area of the cross section of the diffusion opening is gradually increased in a direction from the first round flange to the second round flange; the gas inlet pipe group comprises at least two gas inlet pipes which are circumferentially and uniformly distributed around the axis of the diffusion base; the medium glass is clamped in the first round flange and seals the upper part of the diffusion opening; a plurality of gas holes are also circumferentiallyand uniformly arranged in the wall body along an axis; and gas brought in by the gas inlet pipes is introduced into the diffusion opening through the gas holes. According to the invention, through arrangement of the conical diffusion base, microwave is guided to be distributed around a seed crystal in a uniform and stable ellipsoid equipotential surface manner, so a good environment is provided for growth of the seed crystal, and the growth quality of the seed crystal is improved.
Owner:宁波晨鑫维克工业科技有限公司 +1
Organic light emitting device with reduced angle dependency
ActiveUS8339037B2Reduce angle dependency of emission brightnessLittle changeDischarge tube luminescnet screensElectroluminescent light sourcesEquipotential surfaceOrganic light emitting device
The present invention provides an organic light emitting device which can reduce the angle dependency of the emission brightness and the emission color, and has a small change in the emission brightness and the emission color with respect to film thickness fluctuations, and can increase use efficiency of the light. The organic light emitting device of the present invention has a plurality of emission layers 3 between an anode 1 and a cathode 2, and the emission layers 3 are separated from each other by an equipotential surface forming layer 4 or a charge generating layer 4. The feature of the present invention resides in that the organic light emitting device has, at least either inside or outside the device, a light scattering means 5 for scattering light emitted from the emission layers 3. The organic light emitting device can reduce the angle dependency of the emission brightness and the emission color by outputting the light emitted from the emission layers in a condition where the light is scattered by the light scattering means.
Owner:ROHM CO LTD +1
Flex-foil package with coplanar topology for high-frequency signals
ActiveUS20200279797A1Semiconductor/solid-state device detailsSolid-state devicesEquipotential surfaceEngineering physics
The invention relates to a foil-based package with at least one foil substrate having an electrically conductive layer arranged thereon which is patterned to provide a first electrically conducting portion and a second electrically conducting portion, which is coplanar to the first electrically conducting portion, and a third electrically conducting portion, which is coplanar to the first electrically conducting portion, the first electrically conducting portion being arranged between the second and third electrically conducting portions. In accordance with the invention, the first electrically conducting portion is implemented to be a signal-guiding waveguide for high-frequency signals and the second electrically conducting portion, which is coplanar to the first electrically conducting portion, and the third electrically conducting portion, which is coplanar to the first electrically conducting portion, form an equipotential surface.
Owner:FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
Tunnel advanced geological forecast three-dimensional modeling method and system based on BIM
ActiveCN110349262AEffectively detect geological problemsProve geological problemsData processing applicationsRelational databasesEquipotential surfaceGrid density
The invention provides a tunnel advanced geological forecast three-dimensional modeling method and system based on BIM. The method comprises the following steps: constructing an advanced geological forecast data relationship library, wherein the advanced geological forecast data relationship library associates a first data storage table and a second data storage table by taking a measuring point ID as a main key, the first data storage table stores a measuring point ID, a measuring point initial position space coordinate and a name of a project to which the measuring point belongs, and the second data storage table stores a measuring point ID, a measuring point space coordinate and a measuring point reflection coefficient; accessing an advanced geological forecast data relationship library, and reading a measurement point initial position space coordinate, a measurement point space coordinate and a measurement point reflection coefficient associated with a specified measurement point ID in the specified project name as modeling original data; using BIM software to call modeling original data, carrying interpolation fitting of equipotential surface according to a set grid density value and reflection coefficient equivalence, taking a preset reflection coefficient reference value as a geological forecast critical value to determine a geological forecast critical surface, and thenconstructing an advanced geological forecast body three-dimensional model.
Owner:SHANDONG TRAFFIC PLANNING DESIGN INST
Pixel structure and display panel
ActiveCN107783343AStable arrangementImprove dark linesNon-linear opticsVertical projectionEquipotential surface
The disclosure provides a pixel structure, including a first substrate, a pixel electrode and a first electrode. The pixel electrode is arranged on the first substrate and is electrically connected with a signal line through a switch element. The pixel electrode has a staggered opening. The staggered opening includes a first slit and a second slit staggered with the first slit. The first electrodeis arranged on the first substrate and is adjacent to the periphery of at least part of the pixel electrode. The first slit and the second slit extend to the first electrode and overlap with the first electrode in a vertical projection direction. The first slit and the second slit do not extend out of the outer edge of the pixel electrode. In addition, a display panel including the abovementionedpixel structure is also proposed. The modality of an equipotential surface formed by the pixel electrode and the first electrode contributes to formation of stable arrangement of liquid crystal molecules at slip end parts and neighboring areas thereof, thereby improving a dark fringe phenomenon of an ordinary display panel and improving the penetration rate.
Owner:AU OPTRONICS CORP
Method for localizing a medical instrument introduced into the body of an examination object
InactiveUS7778689B2Convenient recordingPrecise positioningDiagnostic recording/measuringSensorsEquipotential surfaceElectrode pair
A method for localizing a medical instrument introduced into the body of a patient, comprising:arranging at least four electrodes on the body of the patient,recording three-dimensional image data of a region of the patient,determining a conductivity model of the patient via the image data,determining electric field distribution when a voltage or current is applied for at least three electrode pairs formed from the four electrodes via the conductivity model and spatial positions of the electrodes, not all the electrodes lying in one plane,applying a voltage or a current at each electrode pair and determining three voltage values at an electrode of the medical instrument for the three electrode pairs, anddetermining the spatial position of the medical instrument as the intersection of equipotential surfaces assigned to the three voltage values at the electrode of the medical instrument.
Owner:SIEMENS HEALTHCARE GMBH
Three-unit magnetic quadrupole lens system and manufacturing method thereof
InactiveCN104851471AFocusSmall distortionRadiation/particle handlingNumerical controlEquipotential surface
The invention discloses a three-unit magnetic quadrupole lens system and a manufacturing method thereof. The three-unit magnetic quadrupole lens system comprises a three-unit magnetic quadrupole lens group formed by three lens units and a beam current transport pipeline passing through the center of the lens group. The beam current transport pipeline adopts an end sealing structure, and comprises a lens pipeline main body, a retainer ring flange, a retainer ring, an O-type sealing ring and an active flange. A dual-curve cylindrical surface-shaped magnetic pole surface is adopted, a magnetic equipotential surface of the quadrupole magnetic field is closer to the shape of dual curve, an ion beam can be easily debugged, and good focusing effects can be obtained. As a dual-curve cylindrical surface-shaped magnetic pole surface processing equation and magnetic pole surface breaking point coordinates are given, a numerical control machine tool can be used for extremely easily processing the dual-curve cylindrical surface-shaped magnetic pole surface precisely. The three-unit lens group enables debugging of the beam current to be more symmetrically. Vacuum sealing between the lens pipeline main body and the active flange is the end sealing, and the transport pipe has better vacuum sealing effects.
Owner:PEKING UNIV
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