公开(公告)号：US06259195B1

公开(公告)日：2001-07-10

申请号：US08518062

申请日：1995-08-22

申请人： Edwin A. Montie ,  Jeroen Van Engelshoven ,  Ronald van der Wilk

发明人： Edwin A. Montie ,  Jeroen Van Engelshoven ,  Ronald van der Wilk

IPC分类号： H01J2951

CPC分类号： H01J29/485

摘要： A cathode ray tube includes an electron gun having a beam-shaping portion (20) for generating electron beams (7-9), a prefocusing system (30) of electrodes (31, 32) across which a prefocusing voltage is supplied during operation so as to form an electron-optical prefocusing lens, and a main lens system (40) of electrodes (32, 41) across which a main lens voltage is applied during operation so as to form an electron-optical main lens. The electrodes (31, 32, 41) are provided with securing means (48) for connection to an insulating supporting body (47) and with apertures (16) for passing the electron beams (7-9). Electrode (32) protrudes toward electrode (31) in such a way that the mutual distance (l2) between the two electrodes at the location of the apertures (16) therein is smaller than their mutual distance (l1) at the location of their respective securing means (48). The two electrodes (31, 32) are spaced apart at the location of the apertures (16) substantially at a distance limited by electrostatic breakdown.

摘要翻译： 阴极射线管包括具有用于产生电子束（7-9）的光束成形部分（20）的电子枪，电极（31,32）的预聚焦系统（30），在操作期间通过其提供预聚焦电压 为了形成电子 - 光学预聚焦透镜，以及在操作期间施加主透镜电压以形成电子 - 光学主透镜的电极（32,41）的主透镜系统（40）。 电极（31,32,31）设置有用于连接到绝缘支撑体（47）的固定装置（48）和用于通过电子束（7-9）的孔（16）。 电极（32）朝向电极（31）突出，使得在其中的孔（16）的位置处的两个电极之间的相互距离（12）小于它们各自的位置处的相互距离（l1） 固定装置（48）。 两个电极（31,32）在孔（16）的位置处基本上以静电击穿限制的距离间隔开。

公开(公告)号：US06271625B1

公开(公告)日：2001-08-07

申请号：US08518061

申请日：1995-08-22

申请人： Jeroen Van Engelshoven ,  Edwin A. Montie ,  Adrianus H. E. Van Rijsewijk ,  Johannes Th. Peerlings

发明人： Jeroen Van Engelshoven ,  Edwin A. Montie ,  Adrianus H. E. Van Rijsewijk ,  Johannes Th. Peerlings

IPC分类号： H01J2951

CPC分类号： H01J29/485

摘要： A picture display device comprises an evacuated envelope and is provided at a first side with an electroluminescent display screen and at an opposite side with an electron gun (6). Between the electron gun (6) and the display screen, the device comprises deflection means with which an electron beam generated by the electron gun (6) can be deflected during operation. The electron gun (6) has at least an electron beam-generating portion (20) and is provided with a main lens system (40) having a first electrode (41), a final electrode (45) and at least one intermediate electrode (42-44) across which a main lens voltage is gradually applied step-wise during operation so as to form an electron-optical main focusing lens. The intermediate electrode(s) (42-44) comprise a plurality of separate parts (421-423, 431-433, 441-443) whose main faces are positioned against each other and are interconnected.

摘要翻译： 图像显示装置包括真空外壳，并且在第一侧设置有电致发光显示屏，并且在与电子枪（6）相对的一侧。 在电子枪（6）和显示屏之间，该装置包括偏转装置，在操作期间由电子枪（6）产生的电子束可以偏转。 电子枪（6）至少具有电子束产生部分（20），并且具有主透镜系统（40），其具有第一电极（41），最终电极（45）和至少一个中间电极 42-44），在操作期间逐步地施加主透镜电压以形成电子 - 光学主聚焦透镜。 中间电极（42-44）包括多个分开的部件（421-423,431-433,441-443），其主面彼此相对定位并相互连接。

公开(公告)号：US5448134A

公开(公告)日：1995-09-05

申请号：US115339

申请日：1993-09-01

申请人： Jeroen Van Engelshoven

发明人： Jeroen Van Engelshoven

IPC分类号： H01J29/48 ,  H01J29/56 ,  H01J29/46 ,  G01G1/04 ,  H01J29/50

CPC分类号： H01J29/563 ,  H01J29/488

摘要： A cathode ray tube having an electron gun for relatively low beam currents (less than 1 mA) is shown. The electron gun has a G1 and a G2 electrode. The voltage difference between these electrodes is more than 800 Volt and the electrical field strength E.sub.12 between said electrodes is more than 4 keV/mm. An improvement in spot size is thereby obtained.

摘要翻译： 示出了具有用于相对较低的束电流（小于1mA）的电子枪的阴极射线管。 电子枪具有G1和G2电极。 这些电极之间的电压差大于800V，并且所述电极之间的电场强度E12大于4keV / mm。 由此获得斑点尺寸的改善。

公开(公告)号：US5256934A

公开(公告)日：1993-10-26

申请号：US883819

申请日：1992-05-13

申请人： Jeroen Van Engelshoven ,  Ger-Wim J. Goorhuis ,  Gerardus J. A. Hellings ,  Gerardus A. H. M. Vrijssen ,  Tjerk G. Spanjer

发明人： Jeroen Van Engelshoven ,  Ger-Wim J. Goorhuis ,  Gerardus J. A. Hellings ,  Gerardus A. H. M. Vrijssen ,  Tjerk G. Spanjer

IPC分类号： H01J29/62

CPC分类号： H01J29/622 ,  H01J2229/4827

摘要： Picture display device comprising a display tube with an electron gun having a hollow tubular structure with an inner surface on which a resistance structure of a material having a high electrical resistance is provided, which structure constitutes a focusing lens. The resistance structure is connected to at least two axially spaced electric contacts for connecting an anode voltage and at least one electric contact located in between for applying a focusing voltage. An electrode means of low-ohmic material for controlling the focusing lens by means of a dynamic correction signal is arranged in the region of the connection for the focusing voltage. Upon energization, the low-ohmic electrode means particularly exercises a non-rotationally symmetrical effect on the electron beam.

摘要翻译： 图像显示装置包括具有电子枪的显示管，该电子枪具有中空的管状结构，内表面设置有具有高电阻的材料的电阻结构，该结构构成聚焦透镜。 电阻结构连接到至少两个轴向间隔开的电触点，用于连接阳极电压和位于其间的至少一个电触点，用于施加聚焦电压。 用于通过动态校正信号控制聚焦透镜的低欧姆材料的电极装置布置在用于聚焦电压的连接区域中。 在通电时，低欧姆电极特别地对电子束进行非旋转对称的作用。

公开(公告)号：US4961022A

公开(公告)日：1990-10-02

申请号：US342413

申请日：1989-04-24

申请人： Gerardus J. A. Hellings ,  Antonius W. F. Van Der Heijden ,  Erich E. Himmelbauer ,  Gerardus A. H. M. Vrijssen ,  Tjerk G. Spanjer ,  Willem M. Van Alphen ,  Jeroen Van Engelshoven

发明人： Gerardus J. A. Hellings ,  Antonius W. F. Van Der Heijden ,  Erich E. Himmelbauer ,  Gerardus A. H. M. Vrijssen ,  Tjerk G. Spanjer ,  Willem M. Van Alphen ,  Jeroen Van Engelshoven

IPC分类号： H01J29/50 ,  H01J29/62

CPC分类号： H01J29/628 ,  H01J29/503 ,  H01J2229/4827 ,  H01J2229/4865 ,  H01J2229/4872

摘要： A display tube comprising an electron gun having a beam-shaping part and a focusing structure. The focusing structure comprises an elongate hollow structure with a high-ohmic resistive layer provided on the inner and/or outer surface and comprises means for forming a non-rotationally symmetrical lens element in the area of the focusing structure. This may be a structure generating an electric multipole (for example, dipole or quadrupole) which may be incorporated particularly in the high-ohmic resistive layer.