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70results about "Cathode-ray/electron-beam tube circuit arrangements" patented technology
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Light emitting diode driver
InactiveUS20030122502A1Static indicating devicesElectroluminescent light sourcesLed arrayAlternating current
A LED driver is disclosed. The LED driver includes a high frequency inverter and an impedance circuit. The high frequency inverter operates to produce a high frequency voltage source whereby the impedance circuit directs a flow of alternating current through a LED array including one or more anti-parallel LED pairs, one or more anti-parallel LED strings, and / or one or more anti-parallel LED matrixes. A transistor can be employed to divert the flow of the alternating current from the LED array, or to vary the flow of the alternating current through LED array.
Owner:SIGNIFY HLDG BV
Image display device incorporating driver circuits on active substrate and other methods to reduce interconnects
InactiveUS7071629B2Reduce in quantityDischarge tube luminescnet screensLamp detailsDriver circuitLiquid-crystal display
Flat panel displays, such as field emission displays (FEDs), plasma displays, liquid crystal displays (LCDs), and electroluminescent displays (ELs), are provided incorporating driver circuitry on the same substrate as the active display region of the display device and further reducing through-vacuum and substrate-to-substrate interconnects. In one implementation, an image display device comprises a substrate; an active display region formed on the substrate and including addressable rows and columns defining pixels; and one or more driver ICs on the substrate, respective outputs of each driver IC coupled to respective ones of the addressable rows and columns, the driver ICs adapted to drive the active display region to display an image. The device also comprises a wireless receiver coupled to the driver ICs, the wireless receiver adapted to wirelessly receive a wireless signal including an input video signal for display and couple the input video signal to the driver ICs.
Owner:SONY CORP +1
Low profile wire bond for an electron sensing device in an image intensifier tube
An electron sensing device for receiving electrons from an output surface of an electron gain device has a silicon die including an active surface area for positioning below the output surface of an electron gain device. The silicon die also includes a silicon step formed below and surrounding the active surface area, and a first array of bond pads formed on the silicon step for providing output signals from the silicon die. When the electron sensing device is positioned below the electron gain device, a tight vertical clearance is formed between the output surface of the electron gain device and the active surface area of the electron sensing device.
Owner:EXCELIS INC
Image forming method and charged particle beam apparatus
ActiveUS7187345B2Avoid chargingReduce impactStability-of-path spectrometersBeam/ray focussing/reflecting arrangementsImage formationCharged particle beam
An image forming method and a charged particle beam apparatus suitable for suppressing the inclination of charging when scanning a two-dimensional area with a charged particle beam. A third scanning line located between a first scanning line and a second scanning line is scanned. After the first, second and third scanning lines have been scanned, a plurality of scanning lines are scanned between the first and third scanning lines and between the second and third scanning lines.
Owner:HITACHI HIGH-TECH CORP
Method and system for energy conversion using a screened-free-electron source
InactiveUS6465965B2Avoid chargingOther heat production devicesExcitation process/apparatusCapacitanceElectron source
A method and device for providing power to a load are disclosed. A beam of free electrons is directed from a free-electron source, such as an electron gun, into an enclosing conductive surface. The free-electron source includes a cathode, which is maintained at a negative voltage with respect to the enclosing conductive surface. A region around the free-electron source is maintained in a vacuum. The system is configured to switch over a time period between two configurations. In the first configuration, the enclosing conductive surface is isolated from a ground. In the second configuration, the enclosing conductive surface is in electrical communication with the ground. Capacitive energy is discharged from the enclosing conductive surface when in the second configuration with an electrical circuit arrangement and provided to the load.
Owner:NELSON LAWRENCE
Image display apparatus having deformation detection
InactiveUS7724248B2Avoid high pressureRelieve pressureCathode-ray tube indicatorsInput/output processes for data processingComputer scienceControl unit
An image display apparatus includes a display panel that displays an image, and a detecting unit that detects a magnitude of deformation of the display panel. In addition, a control unit controls display on the display panel according to an output of the detecting unit such that the magnitude of deformation of the display panel becomes equal to or smaller than a predetermined value.
Owner:CANON KK
System And Apparatus For Cathodoluminescent Lighting
InactiveUS20100097004A1Thermionic cathodesLamp incadescent bodiesElectrical conductorElectron source
Electron sources for a cathodoluminescent lighting system are disclosed. An electron source is a broad-beam reflecting-type electron gun having a cathode for emitting electrons and a reflector and / or secondary emitter electrode and no grids. An alternative electron gun has a cathode having a heater welded to a disk, the disk having an emissive surface on a side facing a dome-shaped defocusing grid and an anode. A lighting system incorporating the electron sources has an envelope with a transparent face, an anode with a phosphor layer to emit light through the face and a conductor layer. The system also has a power supply for providing from five to thirty thousand volts of power to the light emitting device to draw electrons from cathode to anode and excite a cathodoluminescent phosphor, and the electrons transiting from cathode to anode are essentially unfocused. A power-factor-corrected embodiment is also disclosed.
Owner:VU1 CORP
Field-emission electron gun and method for controlling same
ActiveUS20130200788A1Efficient preparationMade tallerTransit-time tubesCathode-ray/electron-beam tube circuit arrangementsElectron sourceParticle beam
The disclosed charged particle beam apparatus includes a field-emission electron source including <310> single crystal of tungsten; a vacuum chamber having the electron source therein; an exhausting system for exhausting the vacuum chamber; a filament connected to the electron source to let flow a current through the electron source and thereby heat the electron source; a power supply for letting a current flow through the filament; an ammeter for measuring a total current emitted from the electron source; and a controlling unit for exercising control to cause the power supply to let a current flow through the filament when the total current measured periodically has become a predetermined ratio or less as compared with a total current from the electron source found immediately after first electron beam emission, or a total current from the electron beam found immediately after a current is let flow through the filament.
Owner:HITACHI HIGH-TECH CORP
Audio-visual display device for pictorial artwork
InactiveUS7007417B2Without worrying about the complex architecture and electronicsEasier for salespeople to showPicture framesTransit-time tubesComputer graphics (images)Display device
An audio-visual display device for pictorial artwork is disclosed. The preferred embodiment has a universal backbox which contains a lightboard capable of lighting up any and / or all sections of a pictorial artwork placed above it, a hidden electric eye for detecting when the viewer wishes to see a snippet of an audio-visual sequence, a speaker, a memory for storing snippets of an audio sequence, and a microprocessor which receives signals from the electric eye and controls the speaker and the lightboard in accordance with an audio-visual sequence which brings to life the pictorial artwork.
Owner:M H SEGAN PARTNERSHIP
DC high-voltage super-radiant free-electron based EUV source
InactiveUS20140239805A1Correction for dispersionLaser detailsDirect voltage acceleratorsPotential differenceSubject matter
An array of spatially separated beamlets is produced by a corresponding array of charged particle emitters. Each emitter is at an electrostatic potential difference with respect to an immediately adjacent emitter in the array. The beamlets are converged laterally to form an charged particle beam. The beam is modulated longitudinally with infrared radiation to form a modulated beam. The charged particles in the modulated beam are bunched longitudinally to form a bunched beam. The bunched beam may be modulated with an undulator to generate a coherent radiation output. This abstract is provided to comply with rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
Owner:KLA TENCOR TECH CORP
Field-emission electron gun and method for controlling same
Owner:HITACHI HIGH-TECH CORP
Luminescent element including nitride, preparation method thereof and luminescence method
InactiveUS20120146502A1Solve low luminous efficiencyImprove reliabilityElectroluminescent light sourcesLamp detailsRare-earth elementChemical composition
A luminescent element including nitride includes a luminescent film and a metal layer with a metal microstructure formed on a surface of the luminescent film; wherein the luminescent film has a chemical composition: Ga1-xAlxN:yRe, wherein Re represents the rare earth element, 0≦x≦1, 0<y≦0.2. A preparation method of a luminescent element including nitride and a luminescence method are also provided. The metal layer is formed on the surface of the luminescent film, and the luminescent element including nitride has simple structure, good luminescence homogeneity, high luminescence efficiency, and good luminescence stability.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD
Image forming method and charged particle beam apparatus
ActiveUS20070024528A1Avoid chargingReduce impactTelevision system scanning detailsPulse generatorImage formationAtomic physics
An image forming method and a charged particle beam apparatus suitable for suppressing the inclination of charging when scanning a two-dimensional area with a charged particle beam. A third scanning line located between a first scanning line and a second scanning line is scanned. After the first, second and third scanning lines have been scanned, a plurality of scanning lines are scanned between the first and third scanning lines and between the second and third scanning lines.
Owner:HITACHI HIGH-TECH CORP
Focused ion beam apparatus and control method thereof
ActiveUS20140292189A1Avoid long exchangesTransit-time tubesCathode-ray/electron-beam tube circuit arrangementsIon beamEngineering
A focused ion beam apparatus is configured to perform at least one of a process of controlling an operation of a cooling unit so that a temperature of a wall surface contacting a source gas in an ion source chamber is maintained at a temperature higher than a temperature at which the source gas freezes and a process of controlling an operation of a heater so that an emitter is temporarily heated when the source gas is exchanged.
Owner:HITACHI HIGH TECH SCI CORP
Luminescent element, its preparation method thereof and luminescene method
InactiveUS20120146499A1Improve stabilitySimple structureDischarge tube luminescnet screensCathode-ray/electron-beam tube vessels/containersChemical compositionMetal microstructure
A luminescent element includes a luminescent substrate; and a metal layer with a metal microstructure formed on a surface of the luminescent substrate; wherein the luminescent substrate has a luminescent material with a chemical composition: Y2O3:Eu. A preparation method of a luminescent element and a luminescence method are also provided. The luminescent element has good luminescence homogeneity, high luminescence efficiency, good luminescence stability and simple structure, and can be used in luminescent device with ultrahigh brightness.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD
Luminescent element, preparation method thereof and luminescence method
InactiveUS20120146501A1Solve low luminous efficiencyImprove reliabilityLamp detailsPretreated surfacesChemical compositionSilicon oxide
A luminescent element is disclosed including: a luminescent substrate; and a metal layer with a metal microstructure formed on a surface of the luminescent substrate; wherein the luminescent substrate comprises a luminescent material with a chemical composition of Y2SiO5:Tb. A preparation method of a luminescent element and a luminescence method are also provided. The luminescent element has good luminescence homogeneity, high luminescence efficiency, good luminescence stability and simple structure, and can be used in luminescent devices with ultrahigh brightness.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD
Luminescent element, preparation method thereof and luminescence method
InactiveUS20120146500A1Improve stabilitySimple structureLamp detailsTransit-time tubesChemical compositionMetal microstructure
A luminescent element comprises: a luminescent substrate; and a metal layer with a metal microstructure formed on a surface of the luminescent substrate; the luminescent substrate comprises luminescent materials with a chemical composition of Zn2SiO4:Mn. A preparation method of a luminescent element and a luminescence method are also provided. The luminescent element has good luminescence homogeneity, high luminescence efficiency, good luminescence stability and simple structure, and can be used in luminescent device with ultrahigh brightness.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD
Luminescent element, preparation method thereof and luminescence method
InactiveUS20120153821A1Solve low luminous efficiencyImprove reliabilityVacuum evaporation coatingSputtering coatingChemical compositionMetal microstructure
A luminescent element comprises: a luminescent substrate; and a metal layer with a metal microstructure formed on a surface of the luminescent substrate; the luminescent substrate comprises luminescent materials with a chemical composition of Y3AlxGa5-xO12:Tb, and 0≦x≦5. A preparation method of a luminescent element and a luminescence method are also provided. The luminescent element has good luminescence homogeneity, high luminescence efficiency, good luminescence stability and simple structure, and can be used in luminescent device with ultrahigh brightness.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD
DC high-voltage super-radiant free-electron based EUV source
An array of spatially separated beamlets is produced by a corresponding array of charged particle emitters. Each emitter is at an electrostatic potential difference with respect to an immediately adjacent emitter in the array. The beamlets are converged laterally to form an charged particle beam. The beam is modulated longitudinally with infrared radiation to form a modulated beam. The charged particles in the modulated beam are bunched longitudinally to form a bunched beam. The bunched beam may be modulated with an undulator to generate a coherent radiation output. This abstract is provided to comply with rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
Owner:KLA CORP
Color variable field emission device
ActiveUS20100156297A1Simple structureReadily changing emission color of lightDischarge tube luminescnet screensStatic indicating devicesField emission deviceLuminous intensity
A field emission device having a simple structure and capable of readily changing emission colors of light by adjusting emission intensity of red, green and blue light is provided. In the field emission device, current that flows into each cathode electrode block is adjusted according to a very low control pulse signal of 0 to 5 V with a predetermined voltage applied to an anode electrode and a gate electrode over time, so that emission intensities of red, green and blue are individually adjusted. Therefore, the current that flows into each cathode electrode block is adjusted in a simple manner using a control pulse signal of a low level without a separate pulse driving high-voltage power supply, so that emission intensities of red, green and blue can be arbitrarily adjusted and emission colors of the field emission device can be readily changed.
Owner:ELECTRONICS & TELECOMM RES INST
Method for driving multi electric field emission devices and multi electric field emission system
ActiveUS20150216025A1Efficient driveElectric light circuit arrangementX-ray apparatusField emission deviceControl circuit
Provided is a method of driving multi electrical field emission devices. The method includes: respectively connecting first current control circuit devices for current path formation to a plurality of electric field emission devices; commonly connecting a second current control circuit device to the first current control circuit devices to commonly control the first current control circuit devices; and driving the first current control circuit devices at different timings when the second current control circuit device is driven.
Owner:ELECTRONICS & TELECOMM RES INST
Thermal field emission electron gun with reduced arcing
InactiveUS7573046B1Reduces undesirable dischargeImprove reliabilityElectric lighting sourcesMaterial analysis by optical meansCurrent limitingSuppressor
One embodiment relates to a thermal field emission electron gun. The electron gun includes a high-vacuum chamber, a thermal field emission cathode including a filament and a tip, a suppressor electrode, an extraction electrode, and a high-voltage power source. The high-voltage power source is coupled to the filament and to the suppressor and extraction electrodes such that the suppressor electrode is at a negative voltage potential in relation to the filament and the extraction electrode is at a positive voltage potential in relation to the filament. A current-limiting resistor is electrically coupled in series with the suppressor electrode. Applicant has determined that such a current-limiting resistor substantially reduces undesirable discharges and improve the reliability and lifetime of the electron gun. Other embodiments, aspects and features are also disclosed.
Owner:KLA TENCOR CORP
Audio-visual display device for pictorial artwork
InactiveUS20030168984A1Without worrying about the complex architecture and electronicsEasier for salespeople to showPicture framesTransit-time tubesGraphicsDisplay device
An audio-visual display device for pictorial artwork is disclosed. The preferred embodiment has a universal backbox which contains a lightboard capable of lighting up any and / or all sections of a pictorial artwork placed above it, a hidden electric eye for detecting when the viewer wishes to see a snippet of an audio-visual sequence, a speaker, a memory for storing snippets of an audio sequence, and a microprocessor which receives signals from the electric eye and controls the speaker and the lightboard in accordance with an audio-visual sequence which brings to life the pictorial artwork.
Owner:M H SEGAN PARTNERSHIP
Image display apparatus
InactiveUS20060082565A1Relieve pressureAvoid high pressureCathode-ray tube indicatorsInput/output processes for data processingComputer graphics (images)Control unit
An image display apparatus comprising: a display panel that displays an image; and a control unit that controls display on the display panel so that strain of the display panel is restricted to a quantity equal to or smaller than a predetermined strain value, based on a physical quantity that varies according to the strain of the display panel.
Owner:CANON KK
Cathode ray tube having multiple field emission cathodes
Apparatus and method are provided for using a multi-element field emission cathode in a color cathode ray tube. The field emission cathode may have from four to ten field emission arrays linearly arranged. The arrays are preferably formed from carbon-based material. An electron gun assembly focuses electron beams from each array on to a phosphor stripe or dot on the screen of the cathode ray tube. Deflection apparatus moves the beam from each field emission array according to clock signals. Clock signals also turn on or turn off voltage to contacts controlling electron current from the array. Values of voltage applied, determined by a video signal, determine the intensity of electron current from each array, which controls the intensity of the light emitted by each color stripe or dot of phosphor on the phosphor screen.
Owner:ALTERA CORP +1
Display Device
InactiveUS20120019121A1Improve yieldLow costControl electrodesDischarge tube luminescnet screensGratingScan line
The present invention discloses a peripheral line scheme of a display device. The routing of the peripheral lines is designed with a grating configuration to electrically connect to a driver IC or an integrated circuit. When the repair line is employed, a part of the peripheral lines could be separated by a laser optionally, and it subsequently could be welded to the repair line by the laser to improve the ability of the repair line. The display device of the present invention includes a display panel with a plurality of signal lines including the data lines and the scan lines. At least one integrated circuit is electrically connected to the plurality of signal lines to drive the display panel for displaying, and at least one repair line is electrically connected to the integrated circuit. At least one peripheral line is electrically connected to the integrated circuit in the grating configuration and in parallel to the repair lines.
Owner:CHUNGHWA PICTURE TUBES LTD
Method for driving multi electric field emission devices and multi electric field emission system
ActiveUS9390880B2Efficient driveX-ray tube electrodesX-ray tube multi-cathode assemblyField emission deviceControl circuit
Provided is a method of driving multi electrical field emission devices. The method includes: respectively connecting first current control circuit devices for current path formation to a plurality of electric field emission devices; commonly connecting a second current control circuit device to the first current control circuit devices to commonly control the first current control circuit devices; and driving the first current control circuit devices at different timings when the second current control circuit device is driven.
Owner:ELECTRONICS & TELECOMM RES INST
Current sensing in vacuum electron devices
InactiveUS6236164B1Vacuum tubesElectrode and associated part arrangementsElectron bunchesAtomic physics
Owner:INT BUSINESS MASCH CORP
Cathode-ray tube
InactiveUS20050001552A1Improve display qualityTransit-tube focussing arrangementsElectrode and associated part arrangementsElectronAtomic physics
An electron beam generating section of an electron gun assembly includes at least a cathode that emits an electron beam, and a control electrode that is disposed on a phosphor screen side of the cathode. The cathode has a cathode face that is opposed to the control electrode, the cathode face having a concave shape with a recessed central portion. The electron beam that is emitted from the cathode face forms a cross-over with a tube axis. A cross-over point of an electron beam, which is emitted from the central portion of the cathode face, differs from a cross-over point of an electron beam, which is emitted from an off-axis portion of the cathode face.
Owner:KK TOSHIBA
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