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7554172 |
Multi-directional multiplexing radius convergence electrode
An electrode plate for an electricity storage and discharge device, which includes a plurality of I/O convergence terminals evenly distributed along a periphery of the electrode plate, and a...
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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...
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7486009 |
Electron gun for cathode-ray tube with improved beam shaping region
An electrode gun for a cathode-ray tube, including at least a first electrode and a second electrode for shaping and focusing the electron beam emitted by a cathode is described. These electrodes...
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7378789 |
Electron emission device
An electron emission device includes a first substrate; a second substrate facing the first substrate and spaced apart from the first substrate; an electron emission unit on the first substrate,...
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7327077 |
Electron tube control grid
In a control grid for an electron tube, the grid has first bars that are evenly spaced out on a skewed surface and extend substantially as circle pseudo-involutes about a central hub.
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7312564 |
Cathode ray tube having an electron gun
A cathode ray tube has an electron gun oriented along an axis (Z), comprising a quadrupolar device which comprises three electrodes ( 5, 6, 7 ). Each electrode possesses a central aperture, a right...
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7307378 |
In-line type electron gun and color cathode ray tube apparatus using the same
An in-line type electron gun using a field superimposing type main lens system is provided that can attain good focusing properties by decreasing the size of the electron beam spot on the entire...
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7268478 |
Electron gun assembly and cathode ray tube with the same
An electron gun assembly for a cathode ray tube where the distortion of the electron beam that ordinarily occurs at the periphery of the screen is reduced. The electron gun assembly includes a...
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7196461 |
Structure of electron gun for cathode ray tube
The present invention relates in general to a cathode ray tube, more particularly, to a structure of an electron gun for enhancing resolution of a cathode ray tube. The structure of an electron gun...
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7148614 |
Electron gun for cathode ray tube
An electron gun for a cathode ray tube comprises a triode including a cathode, a control electrode and an accelerating electrode, a pre-focusing electrode unit adjacent to the triode, a main lens...
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7135821 |
High-definition cathode ray tube and electron gun
A high-definition CRT is provided having an electron gun to produce high beam current without increasing spot size and to provide lower electrical power requirements at high beam-modulation...
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7135813 |
Color Braun tube apparatus with non-circular electron beam passage aperture
A main lens is formed by a focus electrode, an intermediate electrode, and an anode electrode successively arranged in a traveling direction of an electron beam. The focus electrode and the anode...
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7122950 |
Cathode ray tube having magnetic pieces at predetermined locations within the electron gun components
The present invention relates to a color cathode ray tube and electron gun, and more particularly, to a color cathode ray tube and electron gun to improve deflection aberration efficiently using...
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7105996 |
Electron gun for color CRT
An electron gun for a color CRT includes a main focusing lens unit that focuses the electron beams generated by a triode unit. The main focusing lens unit includes a first and a second...
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7045943 |
Electron gun for cathode ray tube having third to fifth electrodes with different sized electron beam through holes
An electron gun for a cathode ray tube is disclosed, which has a simple structure and can prevent the spot on a screen from being degraded. In the electron gun for a cathode ray tube including a...
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7038367 |
Electron gun for cathode ray tube including electrodes with different dimensions
An electron gun for a cathode ray tube includes a triode portion including cathodes, a first electrode, and a second electrode arranged with predetermined gaps therebetween. A plurality of...
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7030548 |
Cathode-ray tube apparatus
A prefocus lens section is formed by a second grid and a third grid in a substantially rotation-symmetric fashion. A sub-lens section is formed by the third grid and a first segment. A main lens...
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7009333 |
Structure of electron gun for color cathode ray tube
A cathode ray tube with a reduced beam spot size on a fluorescent screen is obtained by forming electron beam passing holes on the electrodes composing a triode portion of an electron gun to have...
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7005801 |
Projection type cathode ray tube having improved focus characteristics
A projection type cathode ray tube includes a phosphor screen, a cathode, G1, G2 and a main lens composed of first, second and third electrodes. The first and third electrodes are supplied with an...
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7005789 |
Method and apparatus for magnetic focusing of off-axis electron beam
Axially symmetric magnetic fields are provided about the longitudinal axis of each beam of a multi-beam electron beam device. The magnetic field symmetry is independent of beam voltage, beam...
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6989630 |
Electrode for election gun, method of manufacturing electrode for electron gun, and electron gun assembly
A surface of a first grid electrode, which is located on a cathode side and is one of a plurality of electrodes for an electron gun used in an electrode gun assembly, is formed to be a rough...
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6987367 |
Cathode-ray tube
A prefocus lens section in an electron gun assembly includes a second grid that is disposed on an electron beam generating section side, a third grid that is disposed on a main lens section side,...
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6965192 |
Color picture tube apparatus
A color picture tube apparatus having an inline electron gun that allows technology for applying a dynamic voltage to an OLF lens to be implemented, while avoiding design difficulties. Eave-shaped...
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6952077 |
Electron gun for cathode ray tube
An electron gun for a cathode ray tube includes a cathode for radiating electron beams, a scanning velocity modulation coil for synchronizing the electron beams with an image signal, a focus...
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6946784 |
Electron gun of monochromic CRT
The present invention is to provide an electron gun of a monochromic CRT comprising at least two electron emission sources (e.g., cathodes) for emitting beams having a small beam spot size and...
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6943491 |
Picture tube device having lead electrode with a curved shape
In a picture tube device with a field-emission cold cathode, including a plurality of electron-emitting cathodes, and a lead electrode provided with a plurality of apertures surrounding the...
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6927531 |
Electron gun and color picture tube apparatus that attain a high degree of resolution over the entire screen
A set of three cathodes, a control electrode, an accelerating electrode, a first focus electrode, a second focus electrode, a third focus electrode, a fourth focus electrode, a final accelerating...
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6919675 |
Color cathode ray tube
In an electron gun including a cathode, a control electrode, an acceleration electrode G 2, a focusing electrode G 3 and an anode, longitudinally elongated concave SL-V which surround an electron...
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6919674 |
Electron gun for color cathode ray tube
The present invention relates to a cathode ray tube, and more particularly, to a cathode ray tube with reduced stray emissions by improving the electrical conductivity of an electrode material of...
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6911770 |
Apparatus with a cap and cover assembly, an electron gun with a cap assembly, and a method of using a tube
A cap can comprise an aperture, and an attenuator may block the aperture during at least one point in time. In one embodiment, the attenuator can include a cover that may be displaced by a spring....
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6903519 |
Multi-element field emission cathode
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...
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6903501 |
Electron gun assembly for cathode ray tube
An electron gun for a monochrome cathode ray tube to be used in a projection display device includes a cathode for emitting thermal electrons, and first and second electrodes forming a triode...
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6882096 |
Active landing control system for raster based devices
Correction of electron beam landing misalignment in a raster-type display is undertaken without using the usual set of coils, but rather by superimposing a landing misalignment correction signal on...
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6853122 |
Cathode-ray tube apparatus
At least one of the electrodes of an electron gun assembly is constructed by coupling at least first and second electrode members arranged in a direction of passing of electron beams. The first...
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6844665 |
Display device and cathode ray tube
A display device comprising a deflection unit and a cathode ray tube having an in-line electron gun. The electron gun comprises a main lens portion having means for generating a main lens field and...
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6841924 |
Low-voltage high-resolution einzel gun
A low voltage Einzel gun design maximizes the size of the second main lens to reduce spherical aberrations thereby reducing spot-size and improving focus quality. The gun's final accelerator...
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6833680 |
Structure of electron gun for color cathode ray tube
A structure of an electron gun for a color cathode ray tube capable of reducing a drive voltage by creating an optimum relation among a cathode, a first electrode, and a second electrode mounted in...
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6831400 |
Color cathode ray tube apparatus having auxiliary magnetic field generator
An electron gun assembly of a color cathode ray tube emits at least one electron beam having an oblong cross-sectional shape extending substantially in the horizontal direction, and emits three...
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6825621 |
Electron gun for color cathode ray tube
An electron gun for a color cathode ray tube includes a cathode which is a source for emitting an electron beam, a control electrode, through which the electron beam emitted from the cathode...
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6819038 |
Double dynamic focus electron gun
An electron gun for a cathode ray tube includes at least one auxiliary quadruple lens forming unit adapted to control an electron beam diverging in the vertical direction and focused in the...
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6815913 |
Cathode ray tube
The present invention provides a cathode ray tube which exhibits a favorable contrast by enhancing a speed modulation effect. A front-stage anode electrode and a focus electrode which constitute an...
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6815881 |
Color CRT electron gun with progressively reduced electron beam passing aperture size
An electron gun includes plural aligned charged grids each having an aperture (in a monochrome CRT) or plural apertures (in a color CRT) through which an electron beam (or beams) is directed. The...
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6809467 |
Method of assembling electron gun electrodes for a cathode-ray tube
The method of assembling an electron gun for a cathode-ray tube comprises the steps loading of at least two electrodes ( 20, 70 ) one above the other, adjusting the distance between the electrodes...
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6800992 |
In-line type electron gun and color picture tube apparatus using the same
A focusing electrode and a final accelerating electrode accommodate, respectively, a first and a second field forming electrode in positions set back from a first and a second aperture of their end...
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6800991 |
Cathode ray tube
Disclosed is a cathode ray tube with an electron gun capable of improving a resolution of an image by preventing electron beams from striking electrodes and efficiently controlling a spot size that...
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6798155 |
Color image display device
A color image display device has an auxiliary means for compensating brightness simply and inexpensively by using an electron gun of a cathode ray tube. Brightness uniformity is improved in the...
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6798129 |
Electron gun having improved electrode support structure
An electron gun for a CRT includes a pair of bead glasses separated from and parallel to each other, supporting electrodes of the electron gun. An electrode has electron beam passing holes and at...
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6794807 |
Electron gun for cathode ray tube
An electron gun for a cathode ray tube includes a single cathode that emits thermions; first and second electrodes; a plurality of focus electrodes provided consecutively after the second...
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6787977 |
Electron gun for cathode-ray tube and method for manufacturing the same
Among a plurality of electrodes composing an electron gun, at least one electrode is separated into two along a plane substantially perpendicular to a central axis, the two being a first...
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6774554 |
Cathode ray tube
A cathode ray tube includes a bulb including a front panel and a funnel, and an electron gun. The front panel includes a color selection mechanism and phosphors on an inner surface thereof. The...
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