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8896195 Filament for electron source  
This invention relates to a filament for electron emission cathode which is employed in an electron microscope, a critical dimension examine tool, an electron beam lithograph machine, an electron...
8866371 Electric field discharge-type electron source  
Increasing the volume or weight of zirconia which is a diffusion and supply source, to extend the life of a field-emission type electron source causes a problem that the diffusion and supply...
8823252 Incandescent lamp having bent filament terminal ends  
An incandescent lamp is provided having first and second attach lead wires and a filament having a coil portion between first and second end portions. The first and second end portions are crimped...
8766538 Electrically heated planar cathode  
An electrically heated planar cathode for use in miniature x-ray tubes may be spiral design laser cut from a thin tantalum alloy ribbon foil (with grain stabilizing features). Bare ribbon is...
8547005 Multi-layer heater for an electron gun  
The electron emission portion of a cathode for an electron gun has layers of substrate material formed from a ceramic powder such as Aluminum nitride. The substrate layers have conductive traces...
8456076 Electron emitting source and manufacturing method of electron emitting source  
An electron emitting source capable of preventing increase in an inter-terminal resistance and a manufacturing method of the electron emitting source. The electron emitting source comprises an...
8294350 Cathode  
A cathode HAS a cathode head in which a surface emitter is arranged that emits electrons upon application of a heating voltage. The surface emitter is fashioned as a parallel surface emitter with...
8264134 Ultraminiature broadband light source with spiral shaped filament  
An ultraminiature light source using a double-spiral shaped tungsten filament includes end contact portions which are separated to allow for radial and length-wise unwinding of the spiral. The...
8232714 Cathode  
A cathode has a cathode head in which is arranged at least one emitter that emits electrons upon application of a heating voltage. At least one series resistor is connected in the voltage feed to...
8223923 X-ray source with metal wire cathode  
An X-ray source with a cathode (2) that includes a first wire (4) having optionally thermal loops (12, 14) between an emission loop (10) and first and second ends (6, 8). A spiral second wire (30)...
8207658 Carbon nanotube growth on metallic substrate using vapor phase catalyst delivery  
A chemical vapor deposition (CVD) method using a vapor phase catalyst of directly growing aligned carbon nanotubes on a metal surfaces. The method allows for fabrication of carbon nanotube...
8183756 Thermionic electron emitter, method for preparing same and X-ray source including same  
A thermionic electron emitter (1) is proposed comprising an emitter part (2) with a substantially flat electron emission surface (3) and a bordering surface (5) adjacent thereto. In order to...
8174174 Cathode structures for X-ray tubes  
An apparatus and method comprising a cathode structure which can be a cylindrical filament coiled in a helix or which can be constructed of a ribbon or other suitable shape. The cathode structure...
8044567 Light source incorporating a high temperature ceramic composite and gas phase for selective emission  
A light source includes a base, a light-transmissive envelope coupled to the base, a composition disposed within the light-transmissive envelope, and a gas phase contained by the envelope for...
8000449 Emitter for X-ray tubes and heating method therefore  
It is described an emitter (26, 40) for X-ray tubes comprising: a flat foil with an emitting section (30, 46); and at least two electrically conductive fixing sections (31-34; 41-44); wherein the...
7902529 Method and apparatus for selectively providing electrons in an ion source  
An electron source can selectively provide a first stream of electrons that travels in a direction along an imaginary line to a location remote from the electron source, or a second stream of...
7898161 Diamond electron radiation cathode, electron source, electron microscope, and electron beam exposer  
An object is to provide an electron emitting cathode achieving high luminance, low energy dispersion, and long life. It is therefore an object to provide a diamond electron emitting cathode...
7868530 Filament electrode and fluorescent lamp  
The disclosed subject matter includes a filament electrode that can include a filament coil connected with a pair of lead wires with confidence. It is possible for a fluorescent lamp using the...
7851985 Article incorporating a high temperature ceramic composite for selective emission  
An article is provided including a heating element and a high temperature coating coated on the heating element. The high temperature coating comprises a first region and a second region arranged...
7808353 Coil system for plasmoid thruster  
A coil system for a plasmoid thruster includes a bias coil, a drive coil and field coils. The bias and drive coils are interleaved with one another as they are helically wound about a conical...
7795792 Cathode structures for X-ray tubes  
An apparatus and method comprising a cathode structure which can be a cylindrical filament coiled in a helix or which can be constructed of a ribbon or other suitable shape. The cathode structure...
7595490 Charged particle beam emitting device and method for operating a charged particle beam emitting device  
A method for operating a charged particle beam emitting device and, in particular, an electron beam emitting device including a cold field emitter is provided. The method includes the steps of...
7544951 Electron gun assembly  
A device which employs an electron beam, for performing a desired function, includes an electron gun for generating the electron beam. The electron gun includes a barrel shaped rotatable structure...
7471035 Internal conductively-heated cathode  
The present invention relates to an internally heated cathode. More specifically, the internally heated cathode that comprises an a cavity structure, where at least a portion of the cavity...
7468576 Multi-segment filament high output halogen lamp  
A high output halogen lamp having five filament segments with four segments in a circular arrangement surrounding a fifth segment positioned directly in the center of the lamp axis which...
7456558 Electric incandescent lamp provided with different pitch factors for each end of a filament component  
The invention relates to an electric incandescent lamp, in particular a vehicle headlight, having at least one incandescent filament which is arranged within a light-permeable lamp vessel, the at...
7368870 Radiation emitting structures including photonic crystals  
Radiation emitting structures that include an active radiation emitter and a passive photonic crystal structure surrounding the emitter are disclosed. The passive photonic crystal structure is...
7355186 Charged particle beam device with cleaning unit and method of operation thereof  
The invention provides a charged particle beam device, an emitter module for emitting charged particle beams and a method of operation thereof. Thereby, a charged particle beam emitter (15)...
7322871 Process to make nano-structured emitters for incandescence light sources  
In a process to make an emitter (10) for light sources, which can be led to incandescence through the passage of electric current, a layer made of anodized porous alumina (1) is used as...
7321188 Light filament formed from carbon nanotubes  
A light filament (206) formed from carbon nanotubes is characterized by high mechanical strength and durability at elevated temperatures, a high surface area to volume ratio, and high emissivity....
7049735 Incandescent bulb and incandescent bulb filament  
An incandescent bulb filament having a flat Light-emitting surface and high Lamp efficiency and an incandescent bulb using this filament are provided. This incandescent bulb filament is...
6979942 Cathode emissive body for an impregnated cathode of an electron tube  
Body (1) formed from a porous matrix impregnated with an electron-emitting material, defined by external faces (11, 12, 13) that all have a roughness of less than 0.2 μm. Because of this surface...
6972522 Magnetron  
A magnetron capable of being efficiently assembled is provided. The magnetron includes a filament, a pair of shields, a pair of leads, a pair of connection plates, and a pair of terminal rods. The...
6882093 Long-life electron tube device, electron tube cathode, and manufacturing method for the electron tube device  
An electron tube cathode includes an emitter layer 30 whose main component is barium oxide and that includes a metal and/or a metal oxide as a dopant is formed on a base metal 20 whose main...
6853119 Double layer electrode coil for a HID lamp and method of making the electrode coil  
A double-layer electrode coil for a high intensity discharge (HID) lamp and a method of making the electrode coil are provided. A more stable layer of coils is made by front winding, instead of...
6812626 Light source with matrix of microfilaments  
A light source composed of a planar, or substantially level, flat or curved, rigid or flexible, matrix of microfilaments integrated on a single substrate and capable of emitting light by...
6803709 Directly-heated oxide cathode and fluorescent display tube using the same  
A directly-heated oxide cathode and a fluorescent display tube using the same, which works with low power consumption, is provided. In a filament cathode, an alkaline earth oxide having an average...
6800989 Method of forming filament for electron beam emitter  
A filament for generating electrons for an electron beam emitter where the filament has a cross section and a length. The cross section of the filament is varied along the length for producing a...
6798128 Cathode-ray tube cathode and alloy therefor  
A nickel alloy for the manufacture of cathodes for cathode-ray tubes, comprises magnesium and aluminium in proportions chosen so as to allow good adhesion of an emissive oxide layer to the basis...
6759798 Structure of capsule for rapidly expanding metallic mixture  
A structure of a capsule for a rapidly expanding metallic mixture includes one or more trigger electrode support rods arranged between the main trigger electrodes such that the trigger electrode...
6707240 Electron gun and electron beam exposure device  
An electron gun includes a plate-like main cathode 77 having an electron emitting surface 79 and a sub-cathode 81 provided toward the rear surface of the main cathode to heat the main cathode 77...
6646366 Directly heated thermionic flat emitter  
A directly heated thermionic flat emitter has an emission surface divided by slots into interconnects that have respective terminal lugs forming power leads arranged at a peripheral edge. A number...
6616756 Protection for a carbon material, in particular C/C composite, bowl that is to receive a crucible, such as a silica crucible for drawing silicon  
Prior to housing the crucible in the bowl, a consumable buffer ply is applied over at least a portion of the inside face of the bowl, the ply being constituted essentially by a non-rigid carbon...
6608442 Flat bulb  
The invention relates to a bulb designed for emitting radiation through an emission surface ES of an envelope ENV which contains a radiation source ELM. According to the invention, the emission...
6469447 Fluorescent lamp lighting apparatus  
A fluorescent lamp lighting apparatus includes a fluorescent light emitting tube; and an electronic lighting circuit for applying an electric current to the fluorescent light emitting tube. The...
6426587 Thermionic emitter with balancing thermal conduction legs  
A thermionic emitter has a flat emission surface that is subdivided by slits into generally spiral or serpentine conductor sections, the surface having legs extending therefrom that form part of...
6417607 Cold electrode for gas discharges  
Cold electrodes for gas discharges have an electrically conductive carrier material on which an emission coating is disposed. The photoelectric output work of the material of the emission coating...
6404115 Particle beam emitting assembly  
A charged particle emitting assembly comprises an emitter member (5) for emitting charged particles of one polarity. A tubular shield electrode (6) circumferentially surrounds the emitter member...
6259193 Emissive filament and support structure  
A filament comprises a generally thin metal component, such as a sheet, ribbon, or foil. The filament comprises at least one emitter, at least one current-condensing structure and a tab on each...
6191527 Stress relieved filament support assembly  
The structure is an improvement to prevent thermal cycle damage to a braze joint in a magnetron filament assembly. The filament is welded to a molybdenum filament weld ring which, in turn, is...

Matches 1 - 50 out of 247 1 2 3 4 5 >