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7586101 |
Ion sources for ion implantation apparatus
The invention relates to improving the efficiency of ion flow from an ion source, by reducing heat loss from the source both in the ion chamber of the ion source and its constituent parts (e.g. the...
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7414356 |
Cathode structure including barrier for preventing metal bridging from heater to emitter
A cathode structure comprises a heater including a columnar ceramic body and a heating wire that is partially buried in the ceramic body, and a cathode unit disposed at a first end surface of the...
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7215070 |
System, method and apparatus for multi-beam lithography including a dispenser cathode for homogeneous electron emission
A dispenser cathode which comprises an emission surface, a reservoir for material releasing, when heated, work-function-lowering particles, and at least one passage for allowing diffusion of...
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7078851 |
Cathode ray tube
The indirectly heated cathode structure includes a base metal having a thermal electron emitting material layer, a cylindrical sleeve holding the base metal at one end portion thereof and housing a...
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6992427 |
High-yield cathode body, cathode sleeve structure, and cathode-ray tube, cathode sleeve substrate, and cathode body production method
A cathode sleeve structure for housing a heater. The cathode sleeve structure includes: a case member that is cylindrical and an end thereof is open; a plurality of supporting members that extend...
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6984831 |
Gas flow restricting cathode system for ion implanter and related method
A cathode system having a cathode element configured to extend through an aperture in a wall of an arc chamber of an ion implanter system. A gas flow through a spacing between the cathode element...
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6897605 |
Cathode assembly and color picture tube utilizing the same
A cathode assembly includes an insulation member, three holders arranged inline in the insulation member, and a support member having a rim portion in which the insulation member is inserted and...
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6847043 |
Ion sources for ion implantation apparatus
The invention relates to improving the efficiency of ion flow from an ion source, by reducing heat loss from the source both in the ion chamber of the ion source and its constituent parts (e.g. the...
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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...
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6771014 |
Cathode design
A cathode system includes an impregnated pellet and a conductive cup, which has substantially cylindrical sides. The conductive cup has an open end sized to receive the impregnated pellet and a...
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6762544 |
Metal cathode for electron tube
An indirectly heated metal cathode for an electron tube includes a metal sleeve of an Mo material, a metal emitter disposed on the metal sleeve and including Pt or Pd as a main component; and a...
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6762540 |
One-piece tab assembly for a cathode cup of an X-ray imaging machine
A cathode assembly ( 43 ) for a computed tomography scanning system ( 10 ) is provided. The cathode assembly ( 43 ) includes a one-piece tab assembly ( 52 ) for simple and relatively quick...
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6686682 |
Cathode in cathode ray tube
Disclosed is a cathode in a cathode ray tube including a cathode sleeve having a heater inside, a base metal supported by the cathode sleeve so as to be formed at an upper end of the cathode...
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6548958 |
Hollow cathode lamp
In a hollow cathode lamp comprising, in a bulb having a light exit port, a hollow cathode and an anode opposed to the light exit port, which comprises a tubular hood having a tubular shape, having...
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6396202 |
Electron gun structure including cathode support strap with opening portion
A cathode structure comprises a cathode, a cathode sleeve, a cathode holder and a cathode strap. The cathode sleeve contains a heater. A hold structure includes a cylindrical cathode support...
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6376976 |
Cathode-ray tube having oxide cathode and method for producing the same
It is an object to obtain a cathode ray tube having a high resolution without decreasing electron emission property. Surface of a cathode was leveled by heating during forming a vacuum in order to...
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6369494 |
Cathode structure and electron gun for cathode ray tubes
The invention relates to a cathode structure intended to be inserted into an electron gun for a cathode-ray tube. The cathode comprises a cathode body on the end of which is placed an emissive...
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6348756 |
Electric discharge tube or discharge lamp and scandate dispenser cathode
An electric discharge tube or discharge lamp comprising a scandate dispenser cathode which is composed of a cathode body and a coating having an emissive surface, said cathode body including a...
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6335590 |
Cathode ray tube having an indirectly heated cathode provided with a heater having a structure which substantially prevents cracks in an insulating coating thereof
A cathode ray tube include phosphor screen and an electron gun. The electron gun includes an indirectly heated cathode structure and plural grid electrodes arranged in axially spaced relationship....
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6255764 |
Electron gun cathode with a metal layer having a recess
The present invention relates to a cathode for an electron gun for increasing its life cycle under a high current density load by ensuring a steady diffusion path of reducing component served for...
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6242852 |
Electron gun
A heater is built in an inner sleeve of an electron gun, and an impregnated type cathode is fixed at an end portion, on the grid electrodes side, of the inner sleeve. The inner sleeve, having an...
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6191528 |
Cathode ray tube having an improved indirectly heated cathode
A cathode ray tube includes a phosphor screen and an electron gun. The electron gun includes an indirectly heated cathode structure and plural grid electrodes in axially spaced relationship. The...
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6166485 |
Electron gun with heat dissipation elements
Picture display device comprising an electron gun with cathodes having an enhanced dissipation of heat by virtue of an enlarged surface or an increase of the emissivity of the surface.
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6130502 |
Cathode assembly, electron gun assembly, electron tube, heater, and method of manufacturing cathode assembly and electron gun assembly
A cathode assembly (27) includes a thermally conductive insulating substrate (21) having a pair of opposing surfaces. A cathode base member (24) is formed on one surface of the insulating...
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6054802 |
Cathode for electronic tube
Problems with a conventional cathode for electronic tubes arose because metals composing the substrate were subjected to heat deformation, resulting in a relatively lage drift of cutoff voltage....
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6016026 |
Impregnated cathode for low power cathode-ray tube
A low power impregnated cathode consisting of a pallet, a cup, an inner sleeve, a cap, and an outer sleeve, is characterized in that the diameter of the pellet is less than at least one and half...
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5982083 |
Cathode for electron tube
A cathode for an electron tube includes a layer of a electron emitting substance containing alkaline earth metal oxides containing 0.01--20.0 wt % of both a lanthanum compound and a magnesium...
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5900692 |
Indirect cathode sleeve
An indirect cathode sleeve and manufacturing method thereof capable of substantially reducing electric power consumption of a heater disposed inside the cathode sleeve and simultaneously reducing a...
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5898262 |
Cathode structure and electron gun for cathode ray tube using the same
In an electron gun for a color cathode ray tube including a cathode structure having three electrodes, a control electrode and a screen electrode, and a plurality of focus electrodes and last...
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5872423 |
Color cathode ray tube having an improved first grid electrode
A color cathode ray tube includes a panel portion having a phosphor screen on its inside surface and suspending a shadow mask hanged closely spaced from the phosphor screen, a neck portion for...
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5869924 |
Cathode structure and CRT electron gun adopting the same
A cathode structure and an electron gun for a CRT adopting the same are provided. The cathode structure has an external case, an insulating member filled in the external case, a plurality of pins...
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5866975 |
Low-temperature cathode having an emissive nanostructure
An electric discharge tube or discharge lamp, in particular a flat-panel display screen, includes one or more low-temperature cathodes having a holder, which, optionally, is provided with a heating...
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5821683 |
Cathode assembly having thermion emitter of cermet pallet
The present invention relates to a cathode assembly employing a cermet pellet and a method for manufacturing the same. The cathode assembly of the present invention has a good quality such as a low...
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5818161 |
Electron gun cathode holder with manufacturing holes
The present invention provides an electron gun cathode for CRTs including a sleeve, on which a cap having an electromagnetic radiation matter applied on its upper face, is fixed. A sleeve supporter...
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5793157 |
Cathode structure for a cathode ray tube
A cathode ray tube has a cathode structure including a cathode body comprised of porous refractory metal impregnated with electron-emissive material, a metal cup for containing the cathode body...
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5780959 |
Cathode structure for cathode ray tube
An improved cathode structure for a cathode ray tube includes a first metal tube which can receive an emission part and a heating element, a second metal tube constituting the cathode shielding,...
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5767615 |
Electron gun for a cathode ray tube
A deformation produced by heat when a G1 grid is welded can be suppressed. A U-shaped slit (34) is formed on an outer peripheral wall (31) of a G1 grid (12). A spot-welding portion (X) is set to an...
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5729084 |
Thermionic cathode with continuous bimetallic wall
A cathode sheath for a thermionic electron-gun cathode. The sheath is substantially in the form of a hollow cylinder and has an outer surface and an inner surface, a central axis, a closed end and...
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5729082 |
Cathode structure comprising a heating element
A cathode structure comprises at an end portion (1) an electron-emitting material (4) and a heating element (5) of wire (7), said cathode structure having a plurality of primary helical turns (8)....
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5708321 |
Cathode for electron tube having an electron-emission layer including a lanthanum-magnesium-manganese oxide
A cathode for an electron tube includes a base metal containing nickel as a major component and an electron-emissive material layer which is formed on the base metal and comprises an alkaline earth...
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5684357 |
Thermion emitting oxide cathode and method for making the same
A thermion emitting oxide cathode comprising a metal cap and a cathode sleeve, the metal cap being coated with a thermion emitting material layer containing a barium-based alkaline earth metal,...
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5637952 |
High-current cathode for picture tubes including a grid 3-electrode having a diaphragm with reduced apertures
An electron-beam gun system is provided having a cathode arrangement and a grid electrode. The cathode arrangement is a high-current cathode (22) having an emitting surface (23). The grid electrode...
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5629582 |
Thermally stable electron gun arrangement with electrically non-conductive spacer members
An electron gun arrangement includes an electron gun having a longitudinal axis and including first and second electrodes longitudinally spaced apart for generating an electron beam in a...
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5543682 |
Cathode assembly incorporating a black layer formed from particles having a specified average particle size
A black coating having a uniform thickness is formed, on the inner surface of the cathode sleeve, as a sintered layer obtained by mixing tungsten having an average particle diameter in a range of...
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5534747 |
Variable focus electron gun assembly with ceramic spacers
An electron gun having a stacked construction is provided, comprising a cylindrical shell, a cathode concentrically disposed within the shell, and at least one spacing ring disposed within the...
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5492226 |
Apparatus for sorting and feeding bead supporters for an electrode gun of a cathode-ray tube
This invention relates to a bead supporter for supporting a cathode assembly of an electron gun for a cathode-ray tube and fixing the assembly to a bead glass. This invention also relates to an...
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5475281 |
Cathode
A low-power cathode can be obtained by arranging it on a substrate (1), preferably of silicon, which is entirely or partly removed at the location of the emissive structure (11) by means of, for...
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5459372 |
Impregnated cathode structure
An impregnated cathode structure has: (1) a sleeve having a truncated conically-shaped top portion with an opening having a predetermined diameter at the center thereof; (2) oxide cathode material...
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5402035 |
Cathode structure for an electron tube
An electron tube includes a cathode structure which has a hollow cylindrical sleeve having a heater mounted within the sleeve. There is a cathode cap disposed at the top of the sleeve to contain an...
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5341064 |
Cathode assembly of an electron gun for a color cathode ray tube
Disclosed is a cathode assembly of an electron gun for a color cathode ray tube in which a heater support structure is improved. The cathode assembly of an electron gun for a color cathode ray tube...
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