公开(公告)号：US1477868A

公开(公告)日：1923-12-18

申请号：US29589719

申请日：1919-05-09

Applicant: CONNECTICUT TELEPHONE & ELEC

Inventor： DONLE HAROLD P

IPC: H01J1/13

CPC classification number: H01J1/13

公开(公告)号：US1418022A

公开(公告)日：1922-05-30

申请号：US3243715

申请日：1915-06-05

Applicant: EUGEN REISZ

Inventor： EUGEN REISZ

IPC: H01J1/13

CPC classification number: H01J1/135

公开(公告)号：US10994365B2

公开(公告)日：2021-05-04

申请号：US16576460

申请日：2019-09-19

Applicant: Vitalij Lissotschenko

Inventor： Vitalij Lissotschenko

IPC: B23K15/00 ,  H01J1/13 ,  H01J29/02 ,  H01J1/12 ,  H01J1/36 ,  B33Y30/00 ,  H01J29/46

Abstract: An apparatus for generating electron radiation comprises: an elongated, wire-shaped hot cathode to emit electron radiation having an elongated, line-shaped cross section perpendicular to a direction of propagation of the electron radiation; a cathode electrode; an anode electrode with an opening through which the electron radiation emitted from the hot cathode can pass, wherein a voltage applied between the cathode electrode and the anode electrode accelerates electrons emitted from the hot cathode; and a deflecting unit to deflect the electron radiation downstream of the opening of the anode electrode, wherein a cross section of the electron radiation perpendicular to the direction of propagation is changed by the deflecting unit to decease a longitudinal extent of the electron radiation and to increase a transverse extent of the electron radiation such that longitudinal and transverse extents of the electron radiation perpendicular to the direction of propagation are about the same size.

公开(公告)号：US09165737B2

公开(公告)日：2015-10-20

申请号：US13644281

申请日：2012-10-04

Applicant: NuFlare Technology, Inc.

Inventor： Victor Katsap

IPC: H01J19/04 ,  H01J1/14 ,  H01J1/13 ,  H01J9/04 ,  H01J1/148 ,  H01J37/065

CPC classification number: H01J1/14 ,  H01J1/148 ,  H01J9/04 ,  H01J37/065 ,  H01J2237/06308

Abstract: An improved cathode comprises a cone-shaped emitter with a carbon-based coating applied to the emitter cone surface, in which there is a narrow annular gap between the emitter body and the carbon coating. The gap prevents direct contact between the carbon coating and the crystalline emitting material, thereby preventing damaging interactions and extending the useful lifetime of the cathode.

Abstract translation: 改进的阴极包括锥形发射器，其具有施加到发射体锥表面的碳基涂层，其中在发射体和碳涂层之间存在窄的环形间隙。 间隙防止碳涂层和结晶发射材料之间的直接接触，从而防止损坏相互作用并延长阴极的使用寿命。

公开(公告)号：US08976542B2

公开(公告)日：2015-03-10

申请号：US13509191

申请日：2010-11-11

Applicant: Robert Richardson ,  Michael Bland ,  Colin Bennett

Inventor： Robert Richardson ,  Michael Bland ,  Colin Bennett

IPC: H01J23/34 ,  H02M3/335 ,  H05B6/66 ,  H01J1/13 ,  H01J23/05 ,  H01J25/52 ,  H01J25/587

CPC classification number: H01J1/135 ,  H01J23/05 ,  H01J25/52 ,  H01J25/587

Abstract: A high frequency cathode heater supply for a microwave source includes a SMPS inverter and an isolation transformer having a primary winding arranged to be powered by the SMPS inverter, a monitor winding passing through primary core assemblies of the primary winding and a secondary winding arranged for connection to the cathode heater. A current monitor is arranged to monitor a current in the primary windings. Signal processing modules are arranged to receive a first input signal from the monitor winding indicative of a voltage across the cathode heater and a second input signal from the current monitor indicative of a current through the cathode heater. The signal processing modules are arranged to output a control signal to the SMPS inverter to control power supplied to the cathode heater dependent on a monitored resistance of, or monitored power supplied to, the cathode heater as determined from the first input signal and the second input signal.

Abstract translation: 用于微波源的高频阴极加热器电源包括SMPS逆变器和隔离变压器，其具有布置成由SMPS逆变器供电的初级绕组，通过初级绕组的初级芯组件的监视器绕组和布置成用于连接的次级绕组 到阴极加热器。 电流监视器用于监视初级绕组中的电流。 信号处理模块被布置成从监视器绕组接收指示阴极加热器两端的电压的第一输入信号和来自电流监视器的指示通过阴极加热器的电流的第二输入信号。 所述信号处理模块被布置为根据从所述第一输入信号和所述第二输入确定的所述阴极加热器的被监视电阻或监视的功率来控制向所述阴极加热器供电的功率，以输出控制信号到所述SMPS逆变器 信号。

公开(公告)号：US08912505B2

公开(公告)日：2014-12-16

申请号：US13644890

申请日：2012-10-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chan Wook Baik ,  Anurag Srivastava ,  Jong Min Kim ,  Sun Il Kim ,  Young Mok Son ,  Gun Sik Park ,  Jin Kyu So

IPC: G21K5/04 ,  H01J1/46 ,  H01J1/13 ,  G21K1/087 ,  H01J1/30

CPC classification number: G21K1/087 ,  H01J1/13 ,  H01J1/30 ,  H01J1/46

Abstract: An electron beam focusing electrode and an electron gun using the same may include a plate having a polygonal through-hole; at least a projecting portion formed on at least one side of the through-hole. By using the electron beam focusing electrode, a spreading phenomenon of an electron beam having a rectangular cross section may be reduced. Further, the output of the electron gun may be increased, and electron beams may be easily focused.

Abstract translation: 电子束聚焦电极和使用该电子束的电子枪可以包括具有多边形通孔的板; 至少形成在所述通孔的至少一侧的突出部。 通过使用电子束聚焦电极，可以减小具有矩形横截面的电子束的扩展现象。 此外，电子枪的输出可能增加，并且电子束可能容易聚焦。

公开(公告)号：US08174174B2

公开(公告)日：2012-05-08

申请号：US12759621

申请日：2010-04-13

Applicant: James T. Arnold ,  Steve Bandy ,  Gary Virshup

Inventor： James T. Arnold ,  Steve Bandy ,  Gary Virshup

IPC: H01J1/13 ,  H01J1/16

CPC classification number: H01J35/06 ,  H01J2235/06

Abstract: 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 can be heated by passage of an electrical current, or by other means such as bombardment with energetic electrons. Selected portions of the surface of the cathode structure have an altered property with respect to the non-selected portions of the surface. In one embodiment, the altered property is a curvature. In another embodiment, the altered property is a work function. By altering the property of the selected portions of the surface, the electron beam intensity is increased, and the width is decreased.

Abstract translation: 一种包括阴极结构的装置和方法，阴极结构可以是以螺旋线圈绕的圆柱形细丝，或者可以由带状物或其他合适的形状构成。 阴极结构可以通过电流加热，或者通过其他手段例如用高能电子轰击来加热。 阴极结构的表面的选定部分相对于表面的未被选择的部分具有改变的特性。 在一个实施例中，改变的特性是曲率。 在另一个实施例中，改变的属性是工作功能。 通过改变表面的选定部分的性质，电子束强度增加，并且宽度减小。

公开(公告)号：US07722425B2

公开(公告)日：2010-05-25

申请号：US11813963

申请日：2006-01-13

Applicant: Seiichi Sakawa ,  Yoshinori Terui

Inventor： Seiichi Sakawa ,  Yoshinori Terui

IPC: H01J9/04 ,  H01J1/13

CPC classification number: H01J1/16 ,  B82Y10/00 ,  B82Y40/00 ,  H01J9/04 ,  H01J37/06 ,  H01J37/3174 ,  H01J2237/06316 ,  H01J2237/25 ,  H01J2237/28

Abstract: An electron source excellent in the uniformity in current emission distribution is provided certainly and at a low cost.A process for producing an electron source having an electron emitting portion at one end of a rod, which comprises a step of forming the electron emitting portion by machining, and a step of removing a damaged layer at the surface of the formed electron emitting portion by chemical polishing or electrolytic polishing.

Abstract translation: 提供电流发射分布均匀性优异的电子源，成本低廉。 一种用于制造在棒的一端具有电子发射部分的电子源的方法，包括通过机械加工形成电子发射部分的步骤，以及通过以下方法除去形成的电子发射部分的表面处的损伤层的步骤： 化学抛光或电解抛光。

公开(公告)号：US06911789B2

公开(公告)日：2005-06-28

申请号：US10379057

申请日：2003-03-04

Applicant: Steven J. Geissler ,  James R. Kahn ,  Harold R. Kaufman ,  Denis M. Shaw

Inventor： Steven J. Geissler ,  James R. Kahn ,  Harold R. Kaufman ,  Denis M. Shaw

IPC: H01J1/13 ,  H01J27/08 ,  H01J37/08 ,  H02M7/5387 ,  H05B37/02

CPC classification number: H01J27/08 ,  H01J1/135 ,  H01J37/08 ,  H02M7/53871

Abstract: In accordance with one embodiment of the present invention, there is provided a switch-mode power supply to generate the heating current for a hot-filament electron-emitting cathode. The power supply directly couples, without an output transformer, the output from a full-bridge converter that operates at an output frequency in the range from ten Hz to ten kHz. A connection to a reference potential that minimizes the potential fluctuation of the cathode is provided by one of the direct-current inputs to the converter.

Abstract translation: 根据本发明的一个实施例，提供了一种用于产生热丝电子发射阴极的加热电流的开关模式电源。 电源直接耦合在不带输出变压器的情况下，全桥变换器的输出工作在10 Hz至10 kHz范围内的输出频率。 通过转换器的直流输入之一提供与参考电位的连接，其使阴极的潜在波动最小化。

公开(公告)号：US6084355A

公开(公告)日：2000-07-04

申请号：US990905

申请日：1997-12-15

Applicant: Tae Jin Park

Inventor： Tae Jin Park

IPC: H04N5/68 ,  G09G1/00 ,  H01J1/13 ,  H05B37/02

CPC classification number: H01J1/135 ,  G09G1/005

Abstract: A cathode heater of a cathode ray tube is rapidly energized either when turning on electric power or when returning to a power-on state mode of the Display Power Management System (DPMS) in an electronic appliance using the cathode ray tube as a video display device. A high voltage generation unit is provided for generating a voltage higher than a rated voltage of the cathode heater of the cathode ray tube. The cathode ray tube enables a stable video display to be presented in a shorter time period due to a rapid heating of the cathode caused when an initial heating unit applies a voltage to the cathode heater which is higher than the rated voltage of the cathode heater, according to a pulse signal which exists for a predetermined time period when turning on electric power or when returning to a power-on state mode of the DPMS. A voltage drop unit is provided to drop the voltage of the high voltage generation unit to the rated voltage of the cathode heater when the predetermined time period elapses so that the cathode heater is thereafter energized with the rated voltage for that cathode heater, in order to maintain the cathode at a normal operating temperature.

Abstract translation: 阴极射线管的阴极加热器在接通电力时或在使用阴极射线管作为视频显示装置的电子设备中返回到显示器电源管理系统（DPMS）的通电状态时，被快速激励 。 提供高电压产生单元，用于产生高于阴极射线管的阴极加热器的额定电压的电压。 阴极射线管使得当初始加热单元向阴极加热器施加高于阴极加热器的额定电压的电压时，由于阴极的快速加热，能够在更短的时间内呈现稳定的视频显示， 根据在接通电力时存在预定时间段或当返回到DPMS的通电状态模式时的脉冲信号。 提供一个电压降单元，当经过预定时间段时，将高电压产生单元的电压降低到阴极加热器的额定电压，从而使阴极加热器之后以该阴极加热器的额定电压通电，以便 将阴极保持在正常工作温度。