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7586251 |
Electron emission device with decreased electrode resistance and fabrication method and electron emission display
An electron emission device includes: a substrate; first and second electrodes insulated from each other and having a predetermined shape on the substrate, at least one of the first and second...
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7569835 |
Gating grid and method of manufacture
The present invention relates generally to grids for gating a stream of charged particles and methods for manufacturing the same. In one embodiment, the present invention relates to a...
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7358593 |
Microfabricated miniature grids
A grid structure and method for manufacturing the same. The grid is used for gating a stream of charged particles in certain types of particle measurement instruments, such as ion mobility...
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7176452 |
Microfabricated beam modulation device
A beam modulation device gate is constructed from a silicon material, such as a silicon layer on an silicon on insulator wafer. The device further comprises a set of electrical contacts on the...
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7166008 |
Method of curing using an electroluminescent light
Method of curing polymeric compositions using light from an electroluminescent light source. An electroluminescent wire light can be embedded into a curable polymer or adhesive composition and used...
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6856080 |
Carbonized resin coated anode
A vacuum tube having its anode/collector coated with carbonized resin plus pyrocarbon material to reduce out-gassing and secondary electron emission and the method of coating the anode/collector.
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6664545 |
Gate for modulating beam of charged particles and method for making same
Bradbury-Nielson gates for the modulation of beams of charged particles, particularly ion beams in mass spectrometry, have been produced with an adjustable wire spacing down to 0.075 mm or a...
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6661166 |
Electron gun and cathode-ray tube
A cathode includes emitter tips provided on a substrate, a gate electrode with an electric field formed between the gate electrode and the emitter tips, and terminals and leads for supplying...
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6652923 |
Electron-emitting source, electron-emitting module, and method of manufacturing electron-emitting source
An electron-emitting source includes a substrate and a coating film. The substrate is made of a material containing a metal serving as a growth nucleus for nanotube fibers as a main component, and...
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6635978 |
Electron tube with axial beam and pyrolitic graphite grid
A grid for an electron tube with an axial beam which includes an apertured part through which the electrons of the beam are intended to pass. The grid is in the form of a bell and is made of a...
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6593579 |
RF modulated electron gun
A radio frequency (RF) modulated electron gun includes a cathode, electrically coupled to operate as a source of charged particles, and a grid, positioned apart from the cathode. The grid and the...
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6524454 |
Integrated membrane and electrode support screen and protector ring for an electrochemical cell
The present invention is an integrated screen comprising a screen portion having openings and an integral protector edge disposed about the periphery of the screen portion. This integrated screen...
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6072269 |
Ceramic member with an electrode and a plurality of tapered through holes for controlling the ejection of particles by switching the sign of a charge on the electrode
A ceramic member has a flat or curved ceramic plate having a plurality of minute through holes of a maximum pore diameter of 150 μm or less, and having electrodes installed on one surface of the...
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5920151 |
Structure and fabrication of electron-emitting device having focus coating contacted through underlying access conductor
An electron-emitting device contains an electron focusing system (37 or 37A) formed with a base focusing structure (38 or 38A), a focus coating (39 or 39A), and an access conductor (106 or 116)....
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5783900 |
Large-area electron irradiator with improved electron injection
A broad-beam high energy electron accelerator has an electron injection section arranged for increased current density with greater uniformity and higher transmission through the foil exit window....
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5550428 |
Frame structure of aperture grille with higher long-side frames
The present invention provides a color selecting mechanism for a cathode ray tube in which an enough area of an effective screen area of a color selecting electrode can be ensured. A frame (1) is...
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5448883 |
Ion thruster with ion optics having carbon-carbon composite elements
Carbon-carbon elements for ion optics sets are thermomechanically stable under the extreme temperature changes that are experienced in ion thrusters. The elements described include screen and...
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5391433 |
Carbon material for electrodes and process for preparing it
A carbon material for electrodes which is a graphite/glass like carbon composite material having a structure in which the crystals of the graphite are oriented in one direction in the matrix of the...
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5272412 |
Method for the production of extraction grids for ion generation and grids produced according to said method
An innovative method is proposed for the production of ion extraction grids, comprising the stages of: disposing a plurality of wires or metallic filaments in a lattice structure; coating...
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5225735 |
Electron tube with cylindrical hexagonal grid aligned with rhombus shaped cathode wires
An electron tube with concentric, cylindrical electrodes has at least one meshed type of grid, a mesh being defined by several rods in contact by their ends, each point of contact forming a node....
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5214349 |
Color cathode ray tube and color selection electrode device of color cathode ray tube
A color selection electrode device mounts: a color selection electrode composed of filaments for regulating the position which an electron beam of the cathode ray tube reaches on a pair of U-shaped...
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5206565 |
High-power low-voltage tetrode having a full walled matrix cathode and a control grid spacing of less than 1 mm
In a controllable high-power electron tube in the form of a tetrode, the anode direct voltage is reduced to less than 10 kV with an anode efficiency of greater than 80%. The tube includes coaxially...
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4975617 |
Electric discharge tube
Flat and slightly convex pyrolytic graphite grid electrodes are very suitable for use in electric discharge tubes, are example in ion sources, cathode-ray tubes, travelling waveguides and...
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4890034 |
Thyratrons
A thyratron includes a grid structure in which a grid element has a plurality of apertures therethrough, each of the apertures comprising two arcuate portions at different distances from the center...
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4866331 |
Eyelet for incandescent lamp bases and method of making
An improved lamp base having an eyelet with prongs and a base and apertures between the prongs and the base into which part of the glass insulator hardens to interlock the insulator with the eyelet.
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4795941 |
Electromagnetic wave shielding, transparent panel for a display device
A transparent panel for a display device of cathode-ray tube type comprising, an electromagnetic shielding web defined by the wires made of an electromagnetic shielding material, and the...
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4752715 |
Television camera tube
A television camera tube comprising an evacuated envelope enclosing an electron gun. The electron gun has, in the direction of propagation of the generated electron beam, a cathode, a grid, an...
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4739213 |
Electron tube with support for pyrolytic graphite electrode
In an electron tube comprising a pyrolytic graphite electrode which is a hollow body of revolution and which has an open end at which it is secured to a substantially coaxially cylindrical...
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4737680 |
Gridded electron gun
An improved grid arrangement is shown for a gridded electron gun wherein the control grid and/or shadow grid is provided with tapering grid vanes which reduce the amount of voltage required to cut...
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4728852 |
Device for fixing a pyrolytic graphite grid onto the base of an electron tube
The present invention concerns a device for fixing the skirt of a grid made of pyrolytic graphite to the base of an electron tube, the fixation device being constituted by a ring fixed onto the...
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4723089 |
Removable screening mount for a tensed mask cathode ray tube
A novel color selection electrode assembly is utilized in screening a pattern of phosphor areas upon the faceplate of a color cathode ray tube. The faceplate, which is formed of a material having a...
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4695760 |
Self-aligned double grids for vacuum tubes
Self-aligned double grids for vacuum tubes and methods for making such double grids are provided. The self-aligned double grids are especially suitable for improving the efficiency and performance...
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4684994 |
Television camera tube with honeycomb grid electrode
A television camera tube comprising in an evacuated envelope, an electron gun for generating at least one electron beam. The electron beam is focused onto a target, and is deflected over the...
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4682077 |
Television camera tube device
A camera tube device for use in a television camera comprises an electron gun including a cathode electrode for emission of an electron beam, and first and second grid electrodes respectively...
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4680500 |
Integral grid/cathode for vacuum tubes
The structure is material such as a ceramic in the form of a bundle of open cells, a "honeycomb", with the shape of the cells corresponding to the shape of the openings desired in the grid. The...
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4614892 |
Tension mask mounting structure
An improvement in a tension mask type color cathode ray tube comprising an envelope funnel that includes a bell portion, one extremity of which has a sealing land. The tube further comprises a flat...
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4604546 |
Incandescent lamp mount structure with shield for evaporation products
A "3-lite" incandescent lamp structure is disclosed which is capable of being mounted in either a "base down" orientation or a "base up" orientation without damage to the internal glass button...
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4583021 |
Electron gun with improved cathode and shadow grid configuration
An improved electron gun is shown with a cathode having a smooth, concaved surface and a grooved pattern therein which matches, and is aligned with, the pattern of a shadow grid placed immediately...
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4572982 |
Apparatus for reducing the effects of thermal stresses on breakdown voltage in high voltage vacuum devices
An anode structure for use in high voltage vacuum devices which reduces the effects of thermal stresses on breakdown voltage includes an anode having at least one flat surface and a mesh of...
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4553064 |
Dual-mode electron gun with improved shadow grid arrangement
A dual-mode electron gun for a traveling-wave tube is disclosed which selectively generates an electron beam of two different cross-sectional areas. The electron gun includes radially inner and...
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4521714 |
Shielded electron beam guide assembly for flat panel display devices
A beam guide assembly for a flat panel display device includes a plurality of meshes arranged in a spaced parallel relationship. Insulative supports permanently retain the meshes in a desired...
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4471267 |
Grid structure for certain plural mode electron guns
A cathode/grid assembly for effecting a dual power mode electron gun for use with a traveling wave tube. The conventional "shadow grid" is both electrically and mechanically isolated from the...
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4469984 |
Grid-like electrode for electronic components and process for making same
A grid-like electrode for electronic components having its grid portion made of fibrous carbon threads bonded by means of the coke of an organic polymer. The grid-like electrode is made by...
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4456852 |
Mesh structure for a photomultiplier tube
A planar mesh structure that facilitates forming into a non-planar mesh structure comprises a peripheral support ring lying in a plane with a plurality of first members and a plurality of second...
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4437034 |
Parallel-wire grid assembly with method and apparatus for construction thereof
Disclosed is a parallel wire grid and an apparatus and method for making the same. The grid consists of a generally coplanar array of parallel spaced-apart wires secured between metallic frame...
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4409513 |
Electrode for an electron gun
An electron gun comprises a cathode for generating at least one electron beam along a beam path and a plurality of electrodes spaced along the beam path from the cathode. The electrode adjacent to...
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4393328 |
Hot cathode, its production process and electron tube incorporating such a cathode
The hot cathode, according to the invention, is constituted by a fritted matrix 1 and a heating filament 4, said matrix being formed from a powder mixture 2 of tungsten and another high work...
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4387320 |
Electron tube with cylindrical grid of pyrolytic graphite
In an electron tube having coaxial cylindrical electrodes and at least one cylindrical grid of pyrolytic graphite, the grid is joined to the upper portion of a central conducting mast by means of a...
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4359667 |
Convectively cooled electrical grid structure
Undesirable distortions of electrical grid conductors (12) from thermal cycling are minimized and related problems such as unwanted thermionic emission and structural failure from overheating are...
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4359666 |
Cylindrical cathode with segmented electron emissive surface and method of manufacture
A new method of fabricating a cylindrical segmented cathode by bending a photoetched bar-band to form a cylindrically-shaped cage and slipping it over a cylindrical electron emissive surface which...
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