公开(公告)号：US4271373A

公开(公告)日：1981-06-02

申请号：US32432

申请日：1979-04-23

申请人： Erich E. Himmelbauer ,  Joseph M. Koemans

发明人： Erich E. Himmelbauer ,  Joseph M. Koemans

IPC分类号： H01J29/48 ,  H01J29/46 ,  H01J29/76 ,  H01J31/38 ,  H01J29/62

CPC分类号： B82Y10/00 ,  H01J29/46 ,  H01J31/38

摘要： A cathode ray tube comprising an extra electrode with which the electron beam can be concentrated on a diaphragm aperture and simultaneously a small predeflection of the electron beam is obtained. The extra electrode is, for example, tubular and has oblique cut ends and is situated between two other electrodes. If the extra electrode has the same potential as the two other electrodes it is inoperative. If a suitable negative voltage pulse is supplied to the extra electrode the electron beam is slightly deflected and also concentrated on the diaphragm aperture.

摘要翻译： 一种阴极射线管，其包括电子束可以集中在光阑孔上并同时具有电子束的小预偏转的多余电极。 额外的电极例如是管状的并且具有倾斜的切割端并且位于两个其它电极之间。 如果额外的电极具有与另外两个电极相同的电位，那么其不起作用。 如果向额外电极提供合适的负电压脉冲，则电子束稍微偏转并且也集中在光阑孔上。

公开(公告)号：US4268777A

公开(公告)日：1981-05-19

申请号：US70552

申请日：1979-08-29

申请人： Johannes H. T. van Roosmalen

发明人： Johannes H. T. van Roosmalen

IPC分类号： H01J3/02 ,  H01J29/48 ,  H01J29/62 ,  H01J31/26 ,  H01J31/38

CPC分类号： H01J29/624

摘要： A cathode-ray tube having an electron gun to generate an electron beam and a focusing lens to focus the electron beam on a target. The anode of the electron gun forms part of the focusing lens and has a very small aperture to limit the electron beam. In order to prevent positive ions formed in the tube from poisoning the cathode the potential of the anode is at most 75 volts relative to the cathode potential and the distance from the center of the focusing lens to the aperture in the anode is at least equal to 1.5 times the largest dimension of the anode taken in a cross-section at right angles to the axis.

摘要翻译： 具有产生电子束的电子枪的阴极射线管和将电子束聚焦在靶上的聚焦透镜。 电子枪的阳极形成聚焦透镜的一部分，并且具有非常小的孔径以限制电子束。 为了防止在管中形成的正离子使阴极中毒，阳极的电位相对于阴极电位至多为75伏，并且从聚焦透镜的中心到阳极中的孔的距离至少等于 在与轴成直角的横截面中摄取的阳极的最大尺寸的1.5倍。

公开(公告)号：US4246511A

公开(公告)日：1981-01-20

申请号：US966046

申请日：1978-12-04

申请人： Shoichi Washino ,  Eisho Nosaka

发明人： Shoichi Washino ,  Eisho Nosaka

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

CPC分类号： H01J29/624

摘要： The disclosed electron gun comprises a main focussing electron lens formed of three aligned grids and an acceleration electron lens preceding the main electron lens and formed of the first two of those grids or of the first one of those grids and another grid preceding it. The acceleration lens is disposed at such a position that the principal plane of the object space of the lens is located adjacent to the virtual object point of the outermost electron ray of the electron beam incident upon the lens. The lengths of the grids forming both lens are described.

摘要翻译： 所公开的电子枪包括由三个对准的栅格形成的主要聚焦电子透镜和主电子透镜之前的加速电子透镜，并由这些栅格中的前两个栅格或其中的第一个栅格形成，并且在其之前的另一栅格。 加速透镜设置在透镜的物体空间的主平面位于与入射到透镜的电子束的最外面的电子束的虚拟物点相邻的位置。 描述形成两个透镜的网格的长度。

公开(公告)号：US4124810A

公开(公告)日：1978-11-07

申请号：US804004

申请日：1977-06-06

申请人： David P. Bortfeld ,  Roger W. Cohen ,  David A. DE Wolf

发明人： David P. Bortfeld ,  Roger W. Cohen ,  David A. DE Wolf

IPC分类号： H01J3/02 ,  H01J29/50 ,  H01J29/62 ,  H01J29/46 ,  H01J29/56

CPC分类号： H01J29/624 ,  H01J29/503

摘要： A color cathode ray tube includes an electron gun having a distributed lens system which yields smaller spot sizes on a phosphor screen at intermediate and higher cathode currents when compared with prior art electrostatic lenses having similar diameters. The lens establishes an essentially exponentially increasing potential distribution along the electron beam path.

摘要翻译： 彩色阴极射线管包括具有分布式透镜系统的电子枪，与具有相似直径的现有技术的静电透镜相比，在中等和更高阴极电流下，在荧光屏上产生较小的光斑尺寸。 透镜沿电子束路径建立一个基本指数增长的电位分布。

公开(公告)号：US4001618A

公开(公告)日：1977-01-04

申请号：US630652

申请日：1975-11-10

申请人： Paul Warren Kaseman

发明人： Paul Warren Kaseman

IPC分类号： H01J29/62 ,  H01J31/50 ,  H01J39/04

CPC分类号： H01J31/50 ,  H01J29/62 ,  H01J2231/50036 ,  H01J2231/50063

摘要： An electrostatic field shaping electrode is mounted external to an image intensifier tube in proximate spaced-apart aligned coaxial relation to an insulating envelope wall portion which is exposed to an internal electron accelerating cavity. The field shaping electrode may be employed during the operation of the tube for substantially preventing electron bombardment of the exposed insulating wall portion and for avoiding spurious output signals resulting from the generation of positive ions by that electron bombardment.

公开(公告)号：US3950667A

公开(公告)日：1976-04-13

申请号：US503893

申请日：1974-09-06

申请人： Arthur E. DeJong ,  Neal H. Cosand

发明人： Arthur E. DeJong ,  Neal H. Cosand

IPC分类号： H01J29/02 ,  H01J29/48 ,  H01J29/88 ,  H01J29/46 ,  H01J29/62

CPC分类号： H01J29/88 ,  H01J29/021 ,  H01J29/48 ,  H01J2229/882

摘要： A high speed electromagnetic deflected electrostatic focus cathode ray tube display having a relatively short magnetic time constant by controlling the gun structure. The volume resistivity and the thickness of resistive materials used in the neck of the cathode ray tube that are cut by changing magnetic flux fields, are selected to provide a relatively short time constant. In one arrangement, the tube focusing control elements near the deflection yoke are formed on a precision ground structure of glass or other suitable ceramic materials. In another arrangement the elements of the tube that are intercepted by the changing magnetic flux are deposited or formed on a precision ground portion of the tube neck. Material deposited on the tube structure or on the tube neck is of a selected maximum volume resistivity and a selected small thickness so that the overall operation has a relatively short time constant.

公开(公告)号：US3922580A

公开(公告)日：1975-11-25

申请号：US47359174

申请日：1974-05-28

申请人： GTE LABORATORIES INC

发明人： HUTTER RUDOLF G E

IPC分类号： H01J29/46 ,  H01J29/74 ,  H01J29/62

CPC分类号： H01J29/465

摘要： A cylindrical electrode for use in focusing and deflecting an electron beam is provided about its central section with eight mutually separated electrode segments arranged in a diametrical fashion for deflecting the beam, and with first and second cylindrical electrode sections at opposite ends of the electrode for focusing the electron beam.

公开(公告)号：US3866081A

公开(公告)日：1975-02-11

申请号：US37240273

申请日：1973-06-21

申请人： PHILIPS CORP

发明人： HASKER JAN ,  DE KLERK JACOBUS JOHANNES MARI

IPC分类号： C07D217/24 ,  H01J29/48 ,  H01J29/56 ,  H01J29/62

CPC分类号： H01J29/56 ,  C07D217/24 ,  H01J29/488

摘要： A cathode-ray tube having an electron gun comprising a cathode, a first grid, a second grid a third grid, and a focusing lens which focuses the electron beam on the screen. The first grid has an elongate aperture the long axis of which is parallel to the vertical scanning direction. The second grid has an aperture the long axis of which is a right angles to the long axis of the aperture in the first grid. The aperture in the second grid is widened in the direction of the screen and its dimension and its distance from the first grid are adjusted for intercepting at least 5 percent of the beam current so as to reduce the aberrations.

摘要翻译： 阴极射线管，特别是分度管，具有狭窄的细长斑点。 管的电子枪包括像散透镜，因为其栅格具有窄的细长的开口。 为了避免电子束在水平和垂直方向同时偏转时的斑点的S形变形，电子枪的阳极设置有一个开口，该开口在远离目标板的一侧朝向目标板的方向变宽。 平行于穿过电子枪轴的平面的平面上的阴极以及由靶板中心的电子束产生的点的长度方向。 阳极开口优选地具有与电子枪的轴线成直角的平面中的细长截面积，所述区域的纵向方向与栅格开口的长度方向大致相交，以便减小对栅格开口宽度的依赖性 光束电流上的光斑。

公开(公告)号：US3863091A

公开(公告)日：1975-01-28

申请号：US31961472

申请日：1972-12-29

申请人： HITACHI LTD

发明人： HURUKAWA TOSHIO ,  YAMAZAKI EIICHI ,  KANAI HIROMI

IPC分类号： H01J29/48 ,  H01J29/62 ,  H01J29/56

CPC分类号： H01J29/624 ,  H01J29/488

摘要： An electron gun assembly for use in a cathode ray tube provided with a main lens system for focusing electrons emitted from a cathode electrode, comprising at least three focusing electrodes aligned on the same imaginary axis extending from said cathode electrode to form with an anode electrode at least two separated lenses on said axis when voltages are applied. The two lenses form a unitary lens having a large aperture in which the object point (i.e., cross-over point) for the lens formed of a first and a second grid electrode is located at the focal position of the lens on the cathode side and the trace of the emitted electron beam becomes nearly parallel with said axis between said two lenses. Thus, the radius of the resulting beam spot becomes smaller and the focusing characteristics are improved.

摘要翻译： 一种用于阴极射线管的电子枪组件，该阴极射线管设有用于聚焦从阴极发射的电子的主透镜系统，该主透镜系统包括至少三个聚焦电极，该至少三个聚焦电极在与所述阴极电极延伸的同一假想轴上排列，以形成阳极电极 当施加电压时，所述轴上至少有两个分离的透镜。 两个透镜形成具有大孔径的单一透镜，其中由第一和第二栅极形成的透镜的物点（即，交叉点）位于阴极侧的透镜的焦点位置，并且 所发射的电子束的轨迹变得与所述两个透镜之间的所述轴几乎平行。 因此，所得到的光斑的半径变小，聚焦特性提高。

公开(公告)号：US3794876A

公开(公告)日：1974-02-26

申请号：US3794876D

申请日：1972-08-30

申请人： PHILIPS CORP

发明人： VAN ALPHEN W

IPC分类号： H04N3/16 ,  H01J29/46 ,  H01J29/62 ,  H01J29/74 ,  H04N3/223 ,  H04N3/24 ,  H04N3/26 ,  H01J29/70

CPC分类号： H04N3/26 ,  H01J29/465 ,  H04N3/24

摘要： A deflection circuit for an electron beam formed with an electrode system suitable for both focussing and deflection, which system includes an electrode dividend in segments. The electrode segments are incorporated in a bridge circuit built up from resistors while two deflection signal generators are each connected to two bridge connection points. A focussing voltage source is connected to a central connection point of a bridge cross branch so that the source and the generators are mutually decoupled.

摘要翻译： 用于电子束的偏转电路，其形成有适于聚焦和偏转的电极系统，该系统包括段中的电极分配。 电极段结合在由电阻器构成的桥接电路中，而两个偏转信号发生器各自连接到两个桥连接点。 聚焦电压源连接到桥交叉分支的中心连接点，使得源和发生器相互解耦。