| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 315003000 |
Combined cathode ray tube and circuit element structure
| 68 |
| 315364000 |
Cathode-ray deflections circuits
| 8 |
| 315014000 |
Plural concentrating, accelerating, and/or de-accelerating stages
| 7 |
| 315120100 |
With secondary emission stage in the cathode-ray tube | 4 |
| 20120056535 | Cathodoluminescent Phosphor Lamp Having Extraction And Diffusing Grids And Base For Attachment To Standard Lighting Fixtures - A light emitting device has a cathode-ray tube and power supply. The cathode-ray tube in an embodiment is optimized for emitting a broad electron beam, in one variation a dome-shaped diffusing grid is used to spread the beam. In another embodiment, the device has a base adapted for attachment to a standard lighting fixture. | 03-08-2012 |
| 20140265829 | Method And Apparatus To Enhance Output Current Linearity In Tandem Electron Multipliers - A tandem electron multiplier device includes an input end position electron multiplier generating an electron emission; an output end position electron multiplier receiving the electron emission and generating an output electron emission; an electron collector to receive the output electron emission; a power supply; and an electrical biasing network coupled to the power supply, the electrical biasing network supplying voltages to connections at the input end position electron multiplier and the output end position electron multiplier, the voltages supplied to provide output current linearly with respect to input current across the tandem electron multiplier device. | 09-18-2014 |
| 20140361683 | Electrostatic Suppression of Ion Feedback in a Microchannel Plate Photomultiplier - A photomultiplier tube having an ion suppression electrode positioned between a photocathode and an electron multiplying device in the photomultiplier tube is disclosed. The ion suppression electrode includes a grid that is configured to provide sufficient rigidity to avoid deformation during operation of the photomultiplier tube. The photomultiplier tube also includes a source of electric potential connected to the electron multiplying device and to the ion suppression electrode to provide a first voltage to the second electrode and a second voltage to the suppression grid electrode wherein the second voltage has a magnitude equal to or greater than the magnitude of the first voltage. A method of making the photomultiplier and a method of using it are also disclosed. | 12-11-2014 |
| 20150022080 | Cathode Assembly For Use In A Radiation Generator - A cathode assembly is for use in a radiation generator and includes an ohmically heated cathode, and a support having formed therein a hole and a recess at least partially surrounding the hole. In addition, there is a mount coupled to the support. The mount includes a larger outer frame positioned within the recess, a smaller inner frame carrying the ohmically heated cathode and spaced apart from the larger outer frame, and a plurality of members coupling the smaller inner frame to the larger outer frame. | 01-22-2015 |
| 315030000 |
Ray modulation | 4 |
| 20130300286 | METHOD AND APPARATUS FOR GENERATING ELECTRON BEAMS - Various embodiments of the present invention relate to a plasma electron source apparatus. The apparatus comprises a cathode discharge chamber in which a plasma is generated, an exit hole provided in said cathode discharge chamber from which electrons from the plasma are extracted by an accelerating field provided between said cathode discharge chamber and an anode, at least one plasma confinement device, and a switching mechanism for switching the at least one plasma confinement device between a first value allowing for electron extraction from the plasma and a second value prohibiting electron extraction from the plasma. Associated methods are also provided. | 11-14-2013 |
| 20140217885 | Pulsed Depressed Collector - A high power RF device has an electron beam cavity, a modulator, and a circuit for feed-forward energy recovery from a multi-stage depressed collector to the modulator. The electron beam cavity include a cathode, an anode, and the multi-stage depressed collector, and the modulator is configured to provide pulses to the cathode. Voltages of the electrode stages of the multi-stage depressed collector are allowed to float as determined by fixed impedances seen by the electrode stages. The energy recovery circuit includes a storage capacitor that dynamically biases potentials of the electrode stages of the multi-stage depressed collector and provides recovered energy from the electrode stages of the multi-stage depressed collector to the modulator. The circuit may also include a step-down transformer, where the electrode stages of the multi-stage depressed collector are electrically connected to separate taps on the step-down transformer. | 08-07-2014 |
| 20150061490 | Gas Coupled Arc Chamber Cooling - An ion implantation system, having a temperature controlled ion source chamber is disclosed. The temperature of the ion source chamber is regulated by disposing a heat sink in proximity to the ion source chamber. A gas fillable chamber is disposed between and in physical communication with both the ion source chamber and the heat sink. By controlling the amount of gas, i.e. the gas pressure, within the gas fillable chamber, the coefficient of heat transfer can be manipulated. This allows the temperature of the ion source chamber to be controlled through the application or removal of gas from the gas fillable chamber. This independent temperature control decouples the power used to heat the ion generator from the ion species that are ultimately generated. | 03-05-2015 |
| 20160064174 | ELECTRON GUN SUPPORTING MEMBER AND ELECTRON GUN APPARATUS - An electron gun supporting member includes an insulating supporting member configured such that its one end is connected to a predetermined member having a ground potential and other end is connected to a high-voltage electrode to which a high potential being a negative high potential for emitting electrons from an electron source is applied, so as to support the high-voltage electrode, and a metal film formed in a partial region, which contacts neither the high-voltage electrode nor the predetermined member, on the outer surface of the insulating supporting member. | 03-03-2016 |
| 315010000 |
With radiant energy sensitive control means | 3 |
| 20140265828 | Enhanced photoelectron sources using electron bombardment - A method of achieving heightened quantum efficiencies and extended photocathode lifetimes is provided that includes using an electron beam bombardment to activate color centers in a CsBr film of a photocathode, and using a laser source for pumping electrons in the color centers of the photocathode. | 09-18-2014 |
| 20140265827 | CURRENT REGULATION METHOD OF MULTIPLE BEAMS - A current regulation method of multiple beams includes acquiring a current density distribution; selecting at least one beam whose current density is equal to or more than a threshold; measuring a current value of the at least one beam respectively by varying a voltage applied to the Wehnelt electrode and acquiring a correlation between the voltage and the current value; moving a stage to a position where the at least one beam is allowed to enter a current detector each time writing of a stripe region is completed; measuring, after moving the stage, a current value of the at least one beam while beams of the multiple beams whose current density is less than the threshold are blocked; operating a target voltage value applied to the Wehnelt electrode to cause the current value measured to be a target current value; and applying the target voltage value to the Wehnelt electrode. | 09-18-2014 |
| 20140368108 | LASER ACTIVATED MAGNETIC FIELD MANIPULATION OF LASER DRIVEN ION BEAMS - A system for generating pulses of charged particles, comprising a high intensity pulsed laser emitting laser pulses which, when impacting a target, generate pulses of charged particles. The particles passes through an electromagnet energized by a low inductance current feed incorporating a light activated switch to turn the energizing current on and off. Part of the light of the laser pulse is directed onto the light activated switch, such that the magnetic field is optically synchronized with the generated pulses of charged particles. This enables energizing the magnet only during passage of the pulses, such that it is lighter and more energy efficient than prior art systems using CW electromagnets. Synchronization also enables selection of charged particles having a predetermined range of particle energy, by timing activation of the magnetic field such that it diverts onto a selected beam path only the particles having the predetermined range of energies. | 12-18-2014 |
| 315009000 |
Plural cathode-ray tubes in the circuit | 1 |
| 20140239805 | DC HIGH-VOLTAGE SUPER-RADIANT FREE-ELECTRON BASED EUV SOURCE - An array of spatially separated beamlets is produced by a corresponding array of charged particle emitters. Each emitter is at an electrostatic potential difference with respect to an immediately adjacent emitter in the array. The beamlets are converged laterally to form an charged particle beam. The beam is modulated longitudinally with infrared radiation to form a modulated beam. The charged particles in the modulated beam are bunched longitudinally to form a bunched beam. The bunched beam may be modulated with an undulator to generate a coherent radiation output. This abstract is provided to comply with rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. | 08-28-2014 |
| 315800510 |
Pulse storing | 1 |
| 20150371806 | ELECTROMECHANICAL X-RAY GENERATOR - An electro-mechanical x-ray generator configured to obtain high-energy operation with favorable energy-weight scaling. The electro-mechanical x-ray generator may include a pair of capacitor plates. The capacitor plates may be charged to a predefined voltage and may be separated to generate higher voltages on the order of hundreds of kV in the AK gap. The high voltage may be generated in a vacuum tube. | 12-24-2015 |
| Entries |
| Document | Title | Date |
|---|
| 20080303443 | POSITION LOCK TRIGGER - Position Lock Trigger apparatus employs oscilloscope circuitry and accompanying control software to provide to a user the capability to trigger an oscilloscope on a selected bit position in a received serial bit stream having a fixed pattern length, using either a synthesized, recovered, or external clock source. The selected trigger position can be moved forward and backward along the serial bit stream by one or more serial bit positions at a time in order to examine the entirety of the fixed pattern length serial bit stream, with or without regard to the actual bit sequences occurring in the serial stream. | 12-11-2008 |
| 20110140602 | FIELD EMISSION CATHODE CAPABLE OF AMPLIFYING ELECTRON BEAM AND METHODS OF CONTROLLING ELECTRON BEAM DENSITY - Field emission devices (FEDs) are provided. In one embodiment, an FED includes an electron emitter, a tube spaced apart from the electron emitter and having a first opening and a second opening, and a gate electrode disposed on an outer surface of the tube. The first opening is disposed at one end of the tube adjacent to the electron emitter, and the second opening is disposed at the other end of the tube. The FED further includes an anode that is spaced apart from the second opening and collects secondary electrons emitted from the second opening. | 06-16-2011 |
| 20120146499 | LUMINESCENT ELEMENT, ITS PREPARATION METHOD THEREOF AND LUMINESCENE METHOD - A luminescent element includes a luminescent substrate; and a metal layer with a metal microstructure formed on a surface of the luminescent substrate; wherein the luminescent substrate has a luminescent material with a chemical composition: Y | 06-14-2012 |
| 20120146500 | LUMINESCENT ELEMENT, PREPARATION METHOD THEREOF AND LUMINESCENCE METHOD - A luminescent element comprises: a luminescent substrate; and a metal layer with a metal microstructure formed on a surface of the luminescent substrate; the luminescent substrate comprises luminescent materials with a chemical composition of Zn | 06-14-2012 |
| 20120146501 | LUMINESCENT ELEMENT, PREPARATION METHOD THEREOF AND LUMINESCENCE METHOD - A luminescent element is disclosed including: a luminescent substrate; and a metal layer with a metal microstructure formed on a surface of the luminescent substrate; wherein the luminescent substrate comprises a luminescent material with a chemical composition of Y | 06-14-2012 |
| 20120146502 | LUMINESCENT ELEMENT INCLUDING NITRIDE, PREPARATION METHOD THEREOF AND LUMINESCENCE METHOD - A luminescent element including nitride includes a luminescent film and a metal layer with a metal microstructure formed on a surface of the luminescent film; wherein the luminescent film has a chemical composition: Ga | 06-14-2012 |
| 20120153821 | LUMINESCENT ELEMENT, PREPARATION METHOD THEREOF AND LUMINESCENCE METHOD - A luminescent element comprises: a luminescent substrate; and a metal layer with a metal microstructure formed on a surface of the luminescent substrate; the luminescent substrate comprises luminescent materials with a chemical composition of Y | 06-21-2012 |
| 20120153822 | LUMINESCENT ELEMENT, PREPARATION METHOD THEREOF AND LUMINESCENCE METHOD - A luminescent element includes a luminescent glass and a metal layer with a metal microstructure formed on a surface of the luminescent glass; wherein the luminescent glass has a chemical composition: bY | 06-21-2012 |
| 20120229024 | Electron source for linear accelerators - The present invention provides an electron gun comprising a cathode, for generating electrons; an anode; an intermediate electrode, located between the cathode and the anode; and a controller. The controller applies an electrical potential to said intermediate electrode, analysing a resultant electrical parameter to determine the integrity of said intermediate electrode; and controls the electron gun to emit a pulse of electrons. | 09-13-2012 |
| 20130200788 | FIELD-EMISSION ELECTRON GUN AND METHOD FOR CONTROLLING SAME - The disclosed charged particle beam apparatus includes a field-emission electron source including <310> single crystal of tungsten; a vacuum chamber having the electron source therein; an exhausting system for exhausting the vacuum chamber; a filament connected to the electron source to let flow a current through the electron source and thereby heat the electron source; a power supply for letting a current flow through the filament; an ammeter for measuring a total current emitted from the electron source; and a controlling unit for exercising control to cause the power supply to let a current flow through the filament when the total current measured periodically has become a predetermined ratio or less as compared with a total current from the electron source found immediately after first electron beam emission, or a total current from the electron beam found immediately after a current is let flow through the filament. | 08-08-2013 |
| 20140152175 | PHOTOCATHODE ENHANCEMENT SYSTEM - A photocathode enhancement system includes a cathode plate that is movably positioned relative to an incident optical beam. The emission surface of the cathode plate has an area between about 0.5 cm | 06-05-2014 |
| 20140292189 | FOCUSED ION BEAM APPARATUS AND CONTROL METHOD THEREOF - A focused ion beam apparatus is configured to perform at least one of a process of controlling an operation of a cooling unit so that a temperature of a wall surface contacting a source gas in an ion source chamber is maintained at a temperature higher than a temperature at which the source gas freezes and a process of controlling an operation of a heater so that an emitter is temporarily heated when the source gas is exchanged. | 10-02-2014 |
