公开(公告)号：US4276495A

公开(公告)日：1981-06-30

申请号：US911804

申请日：1978-06-02

Applicant: Masakazu Fukushima ,  Kunio Ando ,  Kenichi Fukuzawa

Inventor： Masakazu Fukushima ,  Kunio Ando ,  Kenichi Fukuzawa

IPC: H01J3/02 ,  H01J29/48 ,  H01J29/62 ,  H01J29/46 ,  H01J29/56

CPC classification number: H01J29/624 ,  H01J29/488

Abstract: In an electron gun for cathode-ray tube comprising a lens system constructed by four cylindrical electrodes concentrically arranged apart from each other for focusing electron beams emitted from a cathode, these electrodes are applied with proper voltages so as to form a bipotential type focusing lens and a unipotential type focusing lens. Preferably, the length of the electrode in the unipotential type focusing lens lying at the cathode side is selected to be larger than a half of the inner diameter of the electrode.

Abstract translation: 在用于阴极射线管的电子枪中，包括由四个圆柱形电极构成的透镜系统，该四个圆柱形电极彼此相互分开排列，用于聚焦从阴极发射的电子束，这些电极被施加适当的电压，从而形成双电位型聚焦透镜， 单能型聚焦镜头。 优选地，位于阴极侧的单电位聚焦透镜中的电极的长度被选择为大于电极内径的一半。

公开(公告)号：US4241275A

公开(公告)日：1980-12-23

申请号：US24992

申请日：1979-03-29

Applicant: Masaaki Yamauchi

Inventor： Masaaki Yamauchi

IPC: H01J3/02 ,  H01J29/48 ,  H01J29/50 ,  H01J29/56 ,  H01J29/76

CPC classification number: H01J29/503 ,  H01J29/56

Abstract: In an in line type electron gun structure for a color picture tube wherein electron guns are arranged in line, the electron-beam-pass apertures of at least one set of corresponding electrodes of the respective electron guns for forming pre-focus lens are made rectangular having corners in the directions of the horizontal and vertical deflection magnetic fields.

Abstract translation: 在其中电子枪排成一行的彩色显像管的直列式电子枪结构中，用于形成预聚焦透镜的各电子枪的至少一组对应电极的电子束通过孔被制成矩形 在水平和垂直偏转磁场的方向上具有角。

公开(公告)号：US4232246A

公开(公告)日：1980-11-04

申请号：US877862

申请日：1978-02-15

Applicant: Soichi Sakurai ,  Kunio Ando ,  Kenichi Fukuzawa

Inventor： Soichi Sakurai ,  Kunio Ando ,  Kenichi Fukuzawa

IPC: H01J3/02 ,  H01J29/50

CPC classification number: H01J29/503

Abstract: Improvements in an electron gun assembly for a color picture tube comprising three electron guns arranged in an in-line relation, each of said three electron guns having three grid electrodes which have respective cylindrical portions of the same inside diameter and are arranged spacedly from each other on the same axis, and the non-central two of which are kept at the same electric potential. At least one of the non-central two grid electrodes is not required to be provided with an inner electrode so that it consists only of cap electrodes, and height i.e. the axial length of the inside cylinders of the respective cap electrodes of the non-central electron guns and the central electron guns are selected to be individually less than the inside diameter (D) of the electrodes.

Abstract translation: 用于彩色显象管的电子枪组件的改进，其包括以线内关系布置的三个电子枪，所述三个电子枪中的每一个具有三个栅格电极，其具有相同内径的相应的圆柱形部分并且彼此间隔布置 在同一轴上，其非中心两个保持在相同的电位。 非中心两个栅格电极中的至少一个不需要设置有内部电极，使得其仅由盖电极组成，并且高度即非中心的相应盖电极的内部气缸的轴向长度 电子枪和中央电子枪被选择为小于电极的内径（D）。

公开(公告)号：US4220889A

公开(公告)日：1980-09-02

申请号：US14832

申请日：1979-02-26

Applicant: Gerard Marhic ,  Philippe Martin

Inventor： Gerard Marhic ,  Philippe Martin

IPC: H01J1/20 ,  H01J1/16 ,  H01J3/02 ,  H01J1/15 ,  H01J19/16

CPC classification number: H01J3/027 ,  H01J1/16

Abstract: A cathode for an electron gun in which a lanthanum hexaboride cap has an internal recess which accommodates a pyrolytic graphite heater element. The cap is cup-shaped, while the heater element is in the form of a frustum of a cone and is resiliently maintained in abutting relationship with the cap by a corrugated tubular member and an assembly of rigid tubes. A cylindrical shell surrounds the periphery of the cap, and a pair of generally conical shielding elements are located in position to intercept stray thermal radiation from the heater element. All of these cathode components are supported in coaxial relationship with each other within the electron gun.

Abstract translation: 一种用于电子枪的阴极，其中六硼化镧帽具有容纳热解石墨加热器元件的内部凹部。 盖是杯形的，而加热器元件是锥形的锥体形式，并通过波纹管状构件和刚性管的组件弹性地保持与盖的邻接关系。 圆柱形壳体围绕盖的周边，并且一对大致圆锥形的屏蔽元件位于适当位置以拦截来自加热器元件的杂散热辐射。 所有这些阴极组件在电子枪内彼此同轴地支撑。

公开(公告)号：US4178532A

公开(公告)日：1979-12-11

申请号：US843454

申请日：1977-10-19

Applicant: Kenichi Fukuzawa ,  Kunio Ando ,  Masakazu Fukushima

Inventor： Kenichi Fukuzawa ,  Kunio Ando ,  Masakazu Fukushima

IPC: H01J3/02 ,  H01J29/48 ,  H01J29/50 ,  H01J29/62

CPC classification number: H01J29/50 ,  H01J29/624

Abstract: In a unipotential type electron gun including a main lens constituted by three coaxial and spaced apart electrodes for focusing an electron beams, the length of the intermediate electrode is made to be larger than 1.1D, where D represents the inner diameter of the electrodes on both sides, and the sum of the length of one electrode located on the side of a cathode electrode, the length of the intermediate electrode, the gap length therebetween, and the gap length between the intermediate electrode and the electrode on the opposite side is set to be in a range of from 4.0D to 5.4D.

Abstract translation: 在包括由三个同轴且间隔开的电极构成的用于聚焦电子束的主透镜的单电位型电子枪中，使中间电极的长度大于1.1D，其中D表示两者上的电极的内径 侧面，并且位于阴极侧的一个电极的长度的总和，中间电极的长度，它们之间的间隙长度以及中间电极和相对侧的电极之间的间隙长度的总和被设置为 范围为4.0D至5.4D。

公开(公告)号：US4096406A

公开(公告)日：1978-06-20

申请号：US684689

申请日：1976-05-10

Applicant: George Valentine Miram ,  Erling Louis Lien

Inventor： George Valentine Miram ,  Erling Louis Lien

IPC: H01J9/04 ,  H01J1/28 ,  H01J1/46 ,  H01J1/48 ,  H01J3/02 ,  H01J9/14 ,  H01J19/14 ,  H01J23/02 ,  H01J23/06 ,  H01J23/065 ,  H01J1/52 ,  H01J17/04 ,  H01J19/38

CPC classification number: H01J19/14 ,  H01J23/065

Abstract: For a grid-controlled electron source to operate at extremely high frequencies, as in planar triodes, the control grid must be situated very close to the emissive cathode. Mechanical and thermal distortions have put minimum limits on grid spacings and hence on the maximum operating frequency of grid-controlled tubes. To overcome these limits the grid structure is formed as a network of web members which are part of a laminated sheet having metal layers bonded to opposite surfaces of an insulating layer. One metal layer is affixed to the emissive surface of a metallic matrix cathode and the other metal layer forms the control grid.

Abstract translation: 对于栅格控制的电子源在极高频率下工作，如在平面三极管中，控制栅格必须非常靠近发射阴极。 机械和热变形对电网间距进行了最小限制，从而对电网控制管的最大工作频率进行了限制。 为了克服这些限制，格栅结构形成为网状构件的网络，网状构件的网络是具有粘合到绝缘层的相对表面的金属层的层压片材的一部分。 一个金属层固定在金属基体阴极的发射表面上，另一个金属层形成控制栅。

公开(公告)号：US3983446A

公开(公告)日：1976-09-28

申请号：US160045

申请日：1971-07-06

Applicant: George V. Miram ,  Gerhard B. Kuehne

Inventor： George V. Miram ,  Gerhard B. Kuehne

IPC: H01J3/02 ,  H01J23/065 ,  H01J29/02 ,  H01J29/46

CPC classification number: H01J3/029 ,  H01J23/065 ,  H01J3/026 ,  H01J3/027

Abstract: The electron gun includes a spherically concave cathode emitter with a pair of axially spaced spherically concave focus and control grids closely spaced overlaying the cathode emitter for controlling the beam current. The grids are supported from a common thermally conductive tubular grid support structure via the intermediary of first and second annular members one of which is a thermally conductive insulator. One or more of the grids are serrated about their peripheries to define a plurality of radially directed fingers bonded to the end of a respective annular grid support member. In an alternative embodiment, the end of the annular grid support member, as bonded to the serrated grid, is castellated to accommodate differences in thermal expansion between the grid and the annular grid support member.

Abstract translation: 电子枪包括球形凹阴极发射器，其具有一对轴向间隔开的球形凹焦点和控制栅格，其紧密间隔地覆盖阴极发射器以控制束电流。 栅格由通常的导热管状栅格支撑结构经由第一和第二环形构件的介质支撑，其中一个是导热绝缘体。 一个或多个栅格围绕它们的周边锯齿以限定结合到相应的环形栅格支撑构件的端部的多个径向指向的指状物。 在替代实施例中，环形格栅支撑构件的结合到锯齿形格栅的端部被浇铸以适应栅格和环形栅格支撑构件之间的热膨胀差异。

公开(公告)号：US3980919A

公开(公告)日：1976-09-14

申请号：US535098

申请日：1974-12-20

Applicant: David J. Bates ,  Aris Silzars ,  Lester A. Roberts

Inventor： David J. Bates ,  Aris Silzars ,  Lester A. Roberts

IPC: H01J3/02 ,  H01J29/48 ,  H01J29/56 ,  H01J29/46

CPC classification number: H01J3/029 ,  H01J29/48 ,  H01J29/56

Abstract: A laminar flow electron gun employing a narrow, elongated cathode for forming a rectangular beam and a plurality of electrodes having narrow, elongated apertures cooperating with said cathode to draw electrons from said cathode and operate on the electrons to focus the rectangular beam onto a target by providing a parallel flow region adjacent said cathode, followed by a divergent flow region, in turn, followed by a convergent flow or focusing region.

Abstract translation: 一种层流电子枪，采用窄的细长阴极形成矩形光束，以及多个电极，其具有与所述阴极配合的狭窄细长的孔，以从所述阴极吸取电子，并对电子进行操作，以将矩形光束聚焦在目标上。 提供与所述阴极相邻的平行流动区域，随后是发散流动区域，随后是会聚流动或聚焦区域。

公开(公告)号：US3956634A

公开(公告)日：1976-05-11

申请号：US546137

申请日：1975-01-31

Applicant: Duc Tien Tran ,  Dominique Tronc ,  Jacques Kervizic ,  Claude Perraudin

Inventor： Duc Tien Tran ,  Dominique Tronc ,  Jacques Kervizic ,  Claude Perraudin

IPC: G21K1/093 ,  G21K5/04 ,  H01J3/02 ,  H05H9/04 ,  G01K1/08 ,  G21G4/00 ,  G21K1/08

CPC classification number: H05H9/04 ,  G21K1/093 ,  G21K5/04 ,  H01J3/029

Abstract: A particle accelerator for obtaining high energy particle beams, comprises an accelerating structure S.sub.A, one mirror or two mirrors constituted with magnetic achromatic and stigmatic deviators and a source K of particles located at the entry of the accelerating structure S.sub.A and having an annular shape allowing the accelerated particles having passed twice through the accelerating structure S.sub.A to cross the source K, the axis of the source K being coincidental with the axis of the accelerating stucture S.sub.A. Magnetic fields are determined in such a manner that the mirrors totally reflect the particles having a predetermined energy level and totally transmit the particles having an energy level higher than this predetermined energy level.

Abstract translation: 用于获得高能量粒子束的粒子加速器包括加速结构SA，由磁性消色差和固定偏差构成的一个反射镜或两个反射镜，以及位于加速结构SA的入口处的颗粒的源K，并且具有允许 加速颗粒已经通过加速结构SA两次穿过源K，源K的轴线与加速结构SA的轴线重合。 以这样的方式确定磁场，使得反射镜完全反射具有预定能量级的颗粒，并且将具有高于该预定能级的能级的颗粒全部透射。

公开(公告)号：US3903450A

公开(公告)日：1975-09-02

申请号：US33432573

申请日：1973-02-21

Applicant: HUGHES AIRCRAFT CO

Inventor： FORBESS RONALD A ,  NOLAND JAMES A

IPC: H01J3/02 ,  H01J23/065 ,  H01J29/70

CPC classification number: H01J3/029 ,  H01J23/065

Abstract: A dual-perveance gridded electron gun is disclosed for selectively providing a high-perveance pulsed electron beam and a low-perveance continuous electron beam. A screen grid which projects over a peripheral portion only of an electron emissive cathode surface is disposed between the emissive surface and a control grid which extends substantially across the emissive surface. Relative potentials are applied to the cathode and to the control and screen grids such that in the higher perveance mode substantially all of the cathode emissive surface emits electrons, while in the lower perveance mode electron emission is substantially precluded from the peripheral portion of the emissive surface over which the screen grid projects.

Abstract translation: 公开了一种双重对称网格电子枪，用于选择性地提供高通量脉冲电子束和低通量连续电子束。 仅在电子发射阴极表面的周边部分突出的屏幕网格设置在发射表面和基本上延伸穿过发射表面延伸的控制栅格之间。 相对电位被施加到阴极和控制和屏幕栅格，使得在更高的平均模式中，基本上所有的阴极发射表面发射电子，而在较低的平均模式中，电子发射基本上被排除在发射表面的周边部分 屏幕网格投影。