Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 8084930 | Multiple device shaping uniform distribution of current density in electro-static focusing systems System that focuses electron beams in an electro-static area to a laminar flow of electrons with uniform distribution of current density and extraordinary demagnification includes a housing having a first interior portion and a second interior portion electrically i... | 12/27/2011 |
| 8084929 | Multiple device shaping uniform distribution of current density in electro-static focusing systems System that focuses electron beams in an electro-static area to a laminar flow of electrons with uniform distribution of current density and extraordinary demagnification includes a body that defines a boundary for an electric field, a field-forming cathode electrod... | 12/27/2011 |
| 7265361 | Beam blanker driver system and method A particle beam lithography system and method of blanking a beam such as a particle or other beam. The system may include a frequency divider adapted to convert a master clock signal at a first frequency into an integral number N of waveforms at a second frequency, ... | 09/04/2007 |
| 7205559 | Electron beam apparatus and device manufacturing method using same An electron beam apparatus including an electron gun for directing a plurality of primary electron beams onto a sample, an objective lens for forming an electric field to accelerate a plurality of secondary electron beams emitted from the sample, and a separator for... | 04/17/2007 |
| 7145520 | Display apparatus box using a spatial light modulator A digital display apparatus (10) using a spatial light modulator (30) projects a monochrome or multicolor image onto a display surface (40) for diagnostic imaging applications. The image can be displayed on a direct-view display surface (40 | 12/05/2006 |
| 7135814 | Electron gun for cathode ray tube having SVM coil and cathode ray tube having the electron gun An electron gun for a cathode ray tube having a scanning velocity modulation coil mounted on an outer circumference of a neck of the cathode ray tube. The electron gun includes a cathode for emitting electron beams; a plurality of grid electrodes sequentially mounte... | 11/14/2006 |
| 7122977 | Cathode-ray tube apparatus A prefocus lens section is formed by a screen electrode and an additional electrode. A main lens section is formed by a focus electrode, an anode electrode and an intermediate electrode that is disposed between the focus electrode and the anode electrode. Each of th... | 10/17/2006 |
| 7062017 | Integral cathode An integral cathode for use with x-ray devices. The integral cathode includes an emitter made of a refractory metal such as tungsten, preferably doped with rhenium to afford malleability during construction and assembly. The integral cathode also includes a support ... | 06/13/2006 |
| 7038669 | System and method for providing a reference video signal A method is taught for providing a reference video signal to a video display through a video interface from a video display adapter for a host computer. The method includes the step of providing a horizontal sync line to carry a horizontal sync signal that occupies ... | 05/02/2006 |
| 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 horizontally and vertically asymmetric shapes. ... | 03/07/2006 |
| 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 surface having a higher degree of surface roughness than a surface of a sec... | 01/24/2006 |
| 6906470 | Method and system for controlling electron beams from 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.... | 06/14/2005 |
| 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 arranged. The arrays are preferably formed from carbon-based material.... | 06/07/2005 |
| 6891321 | Oil-free electron source having cathode and anode members adjustable with five degrees of freedom An electron source includes a vacuum chamber within which a vacuum is maintained by a vacuum pump. An insulated receptacle is mounted within the vacuum chamber and has a receptacle mounting flange. The receptacle mounting flange is used to establish a coordinate sys... | 05/10/2005 |
| 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 electrode is formed as an internal conductive coating on the neck, which is... | 01/11/2005 |
| 6774552 | Electron gun An electron gun also has a cathode for emitting electrons, a heater cap which contains a heater for applying the cathode with thermal energy for emitting electrons, a retainer for securing the cathode on the heater cap by clamping the peripheral edge of the cathode ... | 08/10/2004 |
| 6703776 | Cathode ray tube A cathode ray tube comprising an electron source and an electron beam guidance cavity having an input aperture and an output aperture, wherein at least a part of the wall of the electron beam guidance cavity near the output aperture comprises an insulatin... | 03/09/2004 |
| 6538370 | Cathode-ray tube and electron gun having reduced radiation A cathode-ray tube electron gun can alleviate unwanted radiation caused when cathodes and a first electron gun constitute an antenna by increasing the number of conduction leads of a first electrode of a cathode-ray tube electron gun from one to a plurali... | 03/25/2003 |
| 6448703 | Electrode unit with inverted dynamic focus voltage applied thereto for forming quadrupole lens and dynamic focus electron gun using the same An electron gun for a color cathode ray tube including a triode consisting of a cathode, a control electrode and a screen electrode, and first and second focus electrodes facing each other and installed sequentially from the triode, for forming quadrupole... | 09/10/2002 |
| 6437498 | Wide-angle deflection color cathode ray tube with a reduced dynamic focus voltage A three in-line beam type color CRT includes a focus electrode and an anode. The focus electrode includes a first focus sub-electrode supplied with a first fixed focus voltage and a second focus sub-electrode supplied with a second fixed voltage superpose... | 08/20/2002 |
| 6369542 | Trolling motor foot control with fine speed adjustment A trolling motor foot control for use with a trolling motor is disclosed. The trolling motor foot control includes a pad adapted to receive an operator's foot, a first operating interface coupled to the pad and adapted to be coupled to the trolling motor ... | 04/09/2002 |
| 6351084 | Method and a device for reducing an electric field produced by a cathode ray tube in its surroundings The invention relates to a method and a device for reducing an electric field produced by display devices equipped with cathode ray tubes, in their surroundings. According to the invention, a part of a spectrum (ff), caused by a picture content, the level... | 02/26/2002 |
| 6294868 | Electron gun for electron tube with cold cathode A Wehnelt electrode and a cold cathode are pressed against and fixed to each other under spring force with a ceramic plate interposed therebetween. Metallized layers connected to a gate electrode and a focusing electrode are disposed on surfaces of the ce... | 09/25/2001 |
| 6051917 | Electron beam gun Electron guns are disclosed that produce low-brightness and high-emittance electron beams that are suitable for use in an electron-beam reduction-lithography apparatus. A preferred embodiment comprises a cathode, a Wehnelt electrode, an anode, and at leas... | 04/18/2000 |
| 5990608 | Electron gun having a cathode with limited electron discharge region An electron gun provides an improved focusing characteristic of electron beams surely and effectively, and permits position alignment to be relatively easy in assembling thereof. In an electron gun which includes a cathode for discharging electrons and a ... | 11/23/1999 |
| 5796212 | Linear beam microwave tube with planar cold cathode electrode as electron beam source An electron gun using a plane type cold cathode electrode has a beam focusing electrode which is disposed in front of the plane type cold cathode electrode and has a hole having a diameter smaller than an electron emission region. The beam focusing electr... | 08/18/1998 |
| 5585691 | Electron beam generation and control for dynamic color separation A dynamic color separation display CRT having an electron beam forming structure for beam generation and electrostatic impingement control. The electron gun forms a group of electron beams and includes a multi-aperture G1 grid for receiving the electron b... | 12/17/1996 |
| 5510670 | Electron beam device having a glass envelope and a focussing lens provided thereon A focussing lens for an electron beam device is formed by a helically coiled resistance layer of a fired suspension of a conductive material of a mixture of a lead rathenate, a lead titanate and a ruthenium oxide in a glass formed of silicon dioxide, alum... | 04/23/1996 |
| 5481157 | Electron gun for cathode-ray tube An electron gun for the cathode-ray tube is disclosed, in which an early stage lens unit and a main lens unit are respectively constructed as a bipotential form lens. A high voltage equivalent to the voltage applied to a grid of the main lens unit is appl... | 01/02/1996 |
| 5336973 | System making it possible to control the shape of a charged particle beam A system for controlling the shape of a charged particle beam. The particle beam is emitted from a source (58) of the said particles. Said source is associated with a collecting electrode which collects the particles. The system comprises at least one res... | 08/09/1994 |
| 5332945 | Pierce gun with grading electrode A Pierce electron gun is provided having a cathode, a focusing electrode surrounding the cathode, and an anode disposed a fixed distance from the cathode and having an opening therethrough. The electron gun has at least one grading electrode disposed betw... | 07/26/1994 |
| 5208507 | In-line type electron gun enabling easy centering between main electrode and auxiliary electrode A screen electrode of an electron gun is by uniting main electrode with an auxiliary electrode. The main electrode has three circular beam passing holes and a pair of guide holes for insertion in arbors of a jig disposed symmetrically around a center beam... | 05/04/1993 |
| 5134339 | High-voltage lead-through for particle-beam apparatus The invention is directed to a high-voltage lead-through arrangement for introducing a high voltage into an enclosure wherein a vacuum is maintained such as for particle-beam apparatus. The arrangement includes: a high-voltage electrode for carrying a hig... | 07/28/1992 |
| 5126628 | Flat panel color display A flat display includes a front panel having a fluorescent screen on its rear side, a rear panel defining a flat space with the front panel, linear filament cathodes arranged close to the rear panel, and an address electrode plate having a multiplicity of... | 06/30/1992 |
| 5015911 | Multistep focusing electron gun for cathode ray tube A multi-step focusing type electron gun is disclosed which includes a cathode, electrodes G1 and G2, and electrodes G3, G4, G5, G6, G7, and G8 for forming two unipotential auxiliary lenses and a bipotential major lens in the main lens, characterized in th... | 05/14/1991 |
| 4988913 | Flat configuration cathode ray tube A flat configuration CRT has a plurality of line cathodes arrayed with a predetermined pitch, a focus electrode section for focusing respective electron beams which are emitted for the line cathodes, and pairs of deflection plates having opposed deflectio... | 01/29/1991 |
| 4900982 | Electron gun design An electron gun which is rugged, provides good thermal decoupling of the hode, permits precise alignment of the electrodes to be achieved easily and allows geometric changes to be carried out with ease is described. In the cathode assembly three set scre... | 02/13/1990 |
| 4873468 | Multiple sheet beam gridded electron gun A gun for generating a multiple sheet beams 50 of electrons has a flat surfaced cathode 10 with parallel protruding ridges 12 of non-emitting material forming parallel focus electrodes for the sheet beamlets. A control grid of parallel bars 14 is aligned ... | 10/10/1989 |
| 4855638 | Camera tube system and electron gun therefor A camera tube system having an electron gun of the diode type. The electron gun is provided with an anode consisting of several parts. These parts are provided with apertures, are electrically separated and are adapted to be connected to means to control ... | 08/08/1989 |
| 4827184 | Electron beam device and a focusing lens therefor An electron beam device such as a cathode ray tube in which spherical aberration is reduced by optimising the axial potential distribution in the focusing lens of the electron gun. In one embodiment of the invention the electron gun comprises a beam formi... | 05/02/1989 |
