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    Electrostatic electron gun with integrated electron beam deflection and/or stigmating system
    151.
    发明授权
    Electrostatic electron gun with integrated electron beam deflection and/or stigmating system 失效
    具有集成电子束偏转和/或烙印系统的静电电子枪

    公开(公告)号：US4725736A

    公开(公告)日：1988-02-16

    申请号：US895200

    申请日：1986-08-11

    Applicant: Albert V. Crewe

    Inventor： Albert V. Crewe

    IPC: H01J3/02 ,  H01J37/30 ,  H01J3/18 ,  H01J3/32

    CPC classification number: H01J37/3007 ,  H01J3/027

    Abstract: An ultra-compact electrostatic electron gun includes integrated beam-modifying means for use in electron beam memory systems, electron microscopes, electron lithographic devices and the like. The gun is illustrated as comprising means forming a point source of electrons and means receiving electrons from the point source for defining an electron beam. Electrostatic lens means receives the beam and forms a beam focus. An integrated magnetic field-generating means establishes a field of magnetic flux through the electrostatic lens for modifying the position, cross-sectional shape or other characteristic of the beam. The magnetic field-generating means is adapted to receive static or dynamic control signals and is characterized by comprising means positioned axially coincident with and surrounding the electrostatic lens to effectively immerse substantially the entire lens in the beam-modifying magnetic field, whereby due to the axial coincidence of the magnetic field-generating means with the lens, a characteristic of the electron beam may be modified without the magnetic field-generating adding significantly, if at all, to the axial length of the gun.

    Abstract translation: 超小型静电电子枪包括用于电子束存储系统，电子显微镜，电子光刻设备等的集成光束修改装置。 枪被示出为包括形成电子点源的装置，以及从点源接收电子的装置，用于限定电子束。 静电透镜装置接收光束并形成光束聚焦。 集成磁场产生装置建立通过静电透镜的磁通场，用于改变光束的位置，横截面形状或其他特性。 磁场产生装置适于接收静态或动态控制信号，其特征在于包括与轴向重合并围绕静电透镜的装置，以有效地将整个透镜有效地浸入光束修正磁场中，由此由于轴向 磁场产生装置与透镜的一致性，可以改变电子束的特性，而不会对枪的轴向长度显着增加磁场产生。

    Cathode for an electron gun
    152.
    发明授权
    Cathode for an electron gun 失效
    电子枪阴极

    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。

    Gridded convergent flow electron gun for linear beam tubes
    153.
    发明授权
    Gridded convergent flow electron gun for linear beam tubes 失效
    用于线性束管的网格会聚流量电子枪

    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。

    Cathode cap
    154.
    发明授权
    Cathode cap 失效
    CATHODE CAP

    公开(公告)号：US3728574A

    公开(公告)日：1973-04-17

    申请号：US3728574D

    申请日：1971-10-19

    Applicant: GTE SYLVANIA INC

    Inventor： BENDA D

    IPC: H01J1/26 ,  H01J3/02 ,  H01J29/04 ,  H01J29/48 ,  H01J1/20

    CPC classification number: H01J29/485 ,  H01J1/26 ,  H01J3/027 ,  H01J29/04

    Abstract: A closure cap, having improved dimensional stability, is provided for capping a terminal-emitting cathode ray tube cathode sleeve. The closure is diversely shaped to have a mesa-like terminal portion, with the planar end surface thereof formed to provide a flat substrate area to accommodate the deposition of electron emissive material thereon. A strengthening transition portion extends from the periphery of the mesa-like portion to form an annular shoulder therearound. A peripheral skirt portion, extending downward from the shoulder, is of a length and internal diameter to facilitate encompassment and affixation to the terminal portion of the sleeve.

    Abstract translation: 提供具有改进的尺寸稳定性的封盖，用于封盖端子发射阴极射线管阴极套管。 闭合件是不同形状的以具有台面状端部，其平面端面形成为提供平坦的基底面积以适应其上的电子发射材料的沉积。 加强过渡部分从台面状部分的周边延伸以在其周围形成环形肩部。 从肩部向下延伸的周边裙部部分具有长度和内径，以便于包围和固定到套筒的末端部分。

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