公开(公告)号：US3887835A

公开(公告)日：1975-06-03

申请号：US36852073

申请日：1973-06-11

Applicant: HITACHI LTD

Inventor： NOMURA SETSUO

IPC: H01J1/304 ,  G01Q30/02 ,  H01J3/02 ,  H01J37/073 ,  H05H7/08 ,  H05B39/00

CPC classification number: H01J3/021

Abstract: A field-emission electron gun wherein, during the state under which an electric field is formed between the cathode and the first anode to thus emit electrons, a heating current is supplied to a filament mounted on the cathode, to steadily heat the cathode so as to hold it at a certain fixed temperature within a range of from 100*C. to 500*C.

Abstract translation: 一种场发射电子枪，其中在阴极和第一阳极之间形成电场以发射电子的状态下，向安装在阴极上的灯丝提供加热电流，以稳定地加热阴极，以便 将其保持在100〜500℃的一定的固定温度。

公开(公告)号：US3852637A

公开(公告)日：1974-12-03

申请号：US22064172

申请日：1972-01-25

Applicant: HITACHI LTD

Inventor： YAMAZAKI E ,  KANAI H

IPC: H01J3/02 ,  H01J29/48 ,  H01J29/56

CPC classification number: H01J3/029 ,  H01J29/488

Abstract: An electron gun structure having a main focusing lens including a unipotential electron lens and a bipotential electron lens, the unipotential and bipotential electron lenses serving as a single main electron lens having a larger effective aperture thereby greatly reducing aberration.

Abstract translation: 具有包括单能电子透镜和双电子透镜的主聚焦透镜的电子枪结构，用作具有较大有效孔径的单个主电子透​​镜的单电位和双电子透镜，从而大大降低像差。

公开(公告)号：US3843902A

公开(公告)日：1974-10-22

申请号：US43967474

申请日：1974-02-04

Applicant: VARIAN ASSOCIATES

Inventor： MIRAM G ,  KUEHNE G

IPC: H01J3/02 ,  H01J23/065 ,  H01J1/48 ,  H01J1/94 ,  H01J19/48

CPC classification number: H01J3/029 ,  H01J3/026 ,  H01J23/065

Abstract: A gridded convergent flow electron gun employs a dimpled oxide coated thermionic cathode emitter facing a centrally apertured accelerating anode. A multiapertured control grid is interposed in the space between the dimpled oxide coated cathode and the anode for pulsing the electron beam. A multiapertured shadow grid is disposed overlaying the emitting surface of the cathode emitter with the apertures of the shadow grid being in alignment and in registration with the respective dimpled areas of the emitter and the corresponding apertures in the control grid for projecting a multiplicity of non-intercepting convergent flow beamlets through the individual holes in the control grid. The shadow grid is placed in nominal contact with the cathode emitter and is made of a material having essentially the same coefficient of thermal expansion as the cathode. In a preferred embodiment, the cathode includes a nickel base member and the shadow grid is made of nickel.

Abstract translation: 网格收敛流电子枪采用面向中心多孔加速阳极的凹凸氧化物涂层热电子阴极发射体。 多孔化控制栅格插入在凹凸氧化物涂覆的阴极和阳极之间的空间中，用于脉冲电子束。 多个投影的阴影栅格被布置为覆盖阴极发射器的发射表面，其中阴影栅格的孔对准并与发射器的相应的凹坑区域对准，并且控制栅格中的相应孔径突出， 拦截收敛流束通过控制网格中的各个孔。 阴影栅格被放置为与阴极发射体标称接触，并且由具有与阴极基本相同的热膨胀系数的材料制成。 在优选实施例中，阴极包括镍基构件，阴影栅格由镍制成。

公开(公告)号：US3780334A

公开(公告)日：1973-12-18

申请号：US3780334D

申请日：1972-05-31

Applicant: THOMSON CSF

Inventor： LEBOUTET H

IPC: C08J7/00 ,  H01J3/02 ,  H01J33/00 ,  H01J29/46

CPC classification number: H01J33/00 ,  H01J3/029

Abstract: A vacuum tube for producing a wide high-uniformity beam of fast accelerated electrons. The tube comprises an evacuated enclosure provided with an electron transparent window and containing an elongated cathode, accelerator electrodes and a control electrode formed by sleeves electrically insulated from one another and brought to separately adjustable potentials.

Abstract translation: 一种用于产生快速加速电子的宽均匀度束的真空管。 该管包括设置有电子透明窗口并且包含细长阴极，加速器电极和由彼此电绝缘的套筒形成的控制电极的抽空外壳，并分别调节电位。

公开(公告)号：US3760286A

公开(公告)日：1973-09-18

申请号：US3760286D

申请日：1972-10-18

Applicant: ATOMIC ENERGY COMMISSION

Inventor： KELLY J

IPC: H01J3/02 ,  H01J29/54

CPC classification number: H01J3/02

Abstract: An electron beam generator in which an annular sheath of electrons is produced by an annular cathode and anode arrangement and injected in a converging manner to a focal point with a portion of the beam current returned to the center of the converging beam and through the center of the cathode annulus. Another portion of the beam current is fed back around the exterior of the converging beam.

Abstract translation: 一种电子束发生器，其中电子的环形护套由环形阴极和阳极布置产生，并以会聚的方式注入到焦点，其中一部分光束电流返回到会聚束的中心并且通过 阴极环。 光束电流的另一部分被反射回聚光束的外部。

公开(公告)号：US3714504A

公开(公告)日：1973-01-30

申请号：US3714504D

申请日：1970-10-20

Applicant: AMBOSS K

Inventor： AMBOSS K

IPC: H01J3/02 ,  H01J29/62 ,  H01J29/56

CPC classification number: H01J29/624 ,  H01J3/029

Abstract: A system wherein spherical aberration is reduced in an electronoptic device having post deflection acceleration by connecting the focusing electrode of an ''''einzel'''' type electrostatic electron lens to a unitary source of potentials at a potential more positive than the potential connected to the electrodes disposed on either side of the focusing electrode. In every case, the same supply above mentioned provides all the potentials necessary to operate the device.

Abstract translation: 通过将“einzel”型静电电子透镜的聚焦电极连接到电位的单一电位的电位比连接到设置的电极的电位更正的电位，在具有后偏转加速度的电子光学器件中球面像差减小的系统 在聚焦电极的两侧。 在每种情况下，上述相同的电源提供了操作设备所需的所有可能性。

公开(公告)号：US3663839A

公开(公告)日：1972-05-16

申请号：US3663839D

申请日：1971-02-24

Applicant: NASA

Inventor： DERR LLOYD J ,  TOBIAS ROBERT A

IPC: F03G7/06 ,  H01J1/13 ,  H01J3/02 ,  H02M7/00

CPC classification number: F03G7/06 ,  H01J1/13 ,  H01J3/028

Abstract: An electrically powered actuator for providing a rotational or large linear motion, which is simple and highly reliable, including a bi-metallic strip with a slot extending along its length from one end to a position near the opposite end. In a rotational actuator, the strip is bent into a spiral, with the inner turn fixed to the shaft which is to be rotated and the outer turn fixed to a support and connected to electrical leads. Current passed through the leads and through the slotted strip heats it to make it uncoil or to make it coil further, the several rotations of the strip resulting in a large rotation of the shaft.

Abstract translation: 一种用于提供旋转或大直线运动的电动致动器，其是简单且高度可靠的，包括具有沿其长度从一端延伸到靠近相对端的位置的狭槽的双金属带。 在旋转致动器中，条带被弯曲成螺旋形，内旋转固定到要旋转的轴上，外转圈固定到支撑件并连接到电引线。 通过引线的电流通过开槽带加热，使其开卷或使其进一步盘绕，带的几个旋转导致轴的大的旋转。

公开(公告)号：US3652896A

公开(公告)日：1972-03-28

申请号：US3652896D

申请日：1969-08-26

Applicant: SONY CORP

Inventor： MIYAOKA SENRI

IPC: H01J3/02 ,  H01J29/48 ,  H01J29/51 ,  H01J29/62 ,  H01J29/56

CPC classification number: B82Y10/00 ,  H01J29/51 ,  H01J29/624

Abstract: In a cathode ray tube, for example, a color picture tube in which a plurality of electron beams are made to converge or cross each other substantially at the optical center of an electrostatic focusing lens by which the beams are focused on the electron-receiving screen of the tube; the focusing lens includes first and second axially spaced, annular electrodes extending around the tube axis and being at the same potential, and a third annular electrode assembly extending between the first and second electrodes and which includes an axial array of at least three annular electrode portions, the electrode portions at the ends of the axial array being at a different potential than the first and second electrodes to establish the focusing electric field and at least one of the electrode portions intermediate the end portions being at a potential that deviates from the potential of the end electrode portions in a direction toward the potential of the first and second electrodes to modify the electric field so that its equivalent optical lens has relatively flatter surfaces for further reducing aberrations of the beam or beams focused thereby.

Abstract translation: 在阴极射线管中，例如，使多个电子束大致在静电聚焦透镜的光学中心会聚或交叉的彩色显像管，通过该静电聚焦透镜将光束聚焦在电子接收屏幕上 的管子 聚焦透镜包括围绕管轴线延伸并处于相同电位的第一和第二轴向间隔开的环形电极，以及在第一和第二电极之间延伸的第三环形电极组件，其包括至少三个环形电极部分的轴向阵列 在轴向阵列的端部处的电极部分处于与第一和第二电极不同的电位，以建立聚焦电场，并且端部之间的电极部分中的至少一个处于偏离电位的电位 末端电极部分朝向第一和第二电极的电位方向，以改变电场，使得其等效光学透镜具有相对平坦的表面，用于进一步减少由此聚焦的光束或光束的像差。

公开(公告)号：US3649868A

公开(公告)日：1972-03-14

申请号：US3649868D

申请日：1970-03-26

Applicant: THOMSON CSF

Inventor： BENSUSSAN ANDRE

IPC: H01J3/02 ,  H01J1/46 ,  H01J19/02

CPC classification number: H01J3/021 ,  H01J3/023 ,  H01J2201/342

Abstract: An electron gun comprises a photoemissive source, which is excited by a source of light such as a pulsed laser. This electron emission is amplified by a secondary emission multiplication system comprising a plurality of AC or DC biased dynodes. In the former case the gun envelope forms a resonator cavity.

Abstract translation: 电子枪包括由诸如脉冲激光的光源激发的光发射源。 该电子发射由包括多个AC或DC偏置倍增电极的二次发射倍增系统放大。 在前一种情况下，枪包络形成谐振腔。

公开(公告)号：US3648096A

公开(公告)日：1972-03-07

申请号：US3648096D

申请日：1968-09-26

Applicant: GEN ELECTRIC

Inventor： BEGGS JAMES E

IPC: H01J1/20 ,  H01J1/28 ,  H01J3/02 ,  H01J21/36 ,  H01J1/46 ,  H01J1/52

CPC classification number: H01J21/36 ,  H01J1/20 ,  H01J1/28 ,  H01J3/027

Abstract: To increase selectively the electron emission from a cathode, a control grid is placed above the cathode and osmium or iridium is evaporated through the openings of the grid onto the cathode. On the resulting cathode the coated regions provide a value of work function which is lower than that of the uncoated regions.

Abstract translation: 为了选择性地增加来自阴极的电子发射，将控制栅格放置在阴极上方，并且锇或铱通过栅格的开口蒸发到阴极上。 在得到的阴极上，涂覆区域提供比未涂覆区域低的功函数值。