Color cathode ray tube apparatus
    2.
    发明授权
    Color cathode ray tube apparatus 失效
    彩色阴极射线管装置

    公开(公告)号:US4728858A

    公开(公告)日:1988-03-01

    申请号:US14612

    申请日:1987-02-13

    摘要: A color cathode ray tube apparatus having an electron gun assembly including a device for modulating a scanning velocity of electron beams at an auxiliary lens section for clarifying an image projected to a screen is disclosed. The color cathode ray tube apparatus comprises an enclosure having a panel section, a funnel section and a neck section, an electron gun assembly, including rear electrodes disposed in front of three cathodes for emitting electron beams, each having three through-holes for passing the beams for forming an auxiliary lens for preliminarily focusing the beams, and a front electrode located in front of the rear electrodes for forming a main lens in cooperation with one electrode thereof for further focusing the beams and converging the beams. The rear electrodes have a pair of electrode members having three beam through-holes defined by cylindrical projections, oblique surfaces opposed at a predetermined interval, formed of the cylindrical projections, each surface crossing perpendicularly to a horizontal plane for scanning the beams and having a predetermined angle with respect to a plane perpendicular to the axis of an electron beam path. The scanning velocity modulating device is connected with the pair of electrode members for supplying a modulating voltage thereto, when luminance values of a video signal arrive at a predetermined level.

    摘要翻译: 公开了一种具有电子枪组件的彩色阴极射线管装置,该电子枪组件包括用于调制辅助透镜部分处的电子束的扫描速度的装置,用于澄清投影到屏幕上的图像。 彩色阴极射线管装置包括具有面板部分,漏斗部分和颈部部分的外壳,电子枪组件,包括设置在用于发射电子束的三个阴极前面的后电极,每个阴极具有三个通孔, 用于形成用于预先聚焦光束的辅助透镜的光束和位于后电极前方的前电极,用于与其一个电极协作形成主透镜,用于进一步聚焦光束并使光束会聚。 后电极具有一对电极构件,具有三个由圆柱形突出部限定的光束通孔,以由圆柱形突起形成的以预定间隔相对的倾斜表面,每个表面垂直于水平面交叉,用于扫描光束并具有预定的 相对于垂直于电子束路径轴的平面的角度。 当视频信号的亮度值达到预定水平时,扫描速度调制装置与用于提供调制电压的一对电极部件连接。

    Electron gun assembly for color cathode ray tube apparatus
    3.
    发明授权
    Electron gun assembly for color cathode ray tube apparatus 失效
    彩色阴极射线管装置用电子枪组件

    公开(公告)号:US4935663A

    公开(公告)日:1990-06-19

    申请号:US323871

    申请日:1989-03-15

    IPC分类号: H01J29/48 H01J29/50 H01J29/96

    摘要: In an electron gun assembly, three electron beams emitted from cathodes are passed through an electrode arrangement in which two intermediate electrodes are arranged between focusing are accelerating electrodes. A focusing voltage which is varied depending on an deflection of the electron beam is applied to the focusing electrode and an accelerating voltage is applied to the accelerating electrode. A resistor is connected between the accelerating electrode and the earth through a variable resistor and intermediate points of the resistor are connected to the intermediate electrodes. Thus, convergent and divergent lenses are formed between the focusing electrode and the intermediate electrode and between the accelerating electrode and the intermediate electrode. The lens powers of the convergent and divergent lenses are varied in accordance with the adjustment of the variable resistor.

    Electron gun for color-picture tube
    4.
    发明授权
    Electron gun for color-picture tube 失效
    电子枪用于彩色显像管

    公开(公告)号:US5034652A

    公开(公告)日:1991-07-23

    申请号:US324066

    申请日:1989-03-16

    IPC分类号: H01J29/48 H01J29/50

    摘要: An electron gun for a color-picture tube includes adjacent low and high potential electrodes composing an electron lens, which electrodes have electron beam path holes horizonally formed with electric-field correcting members or raised portions. According to this construction, vertical equipotential lines are projected into the electrode so that the low potential electrode adds to electron beams a vertical focusing effect more strongly than a horizontal one and the high potential electrode adds to electron beams a vertical divergent effect more strongly than a horizontal one. The section of the electron beam in a deflection region has an ellipse shape whose major axis extends horizontally, resulting in suppressing a halo portion on the screen. The electron beam is properly focused horizontally and vertically so that the electron beam spot has a circular shape on the center of a screen. It results in improving the resolution on the periphery of the screen without having to lower the resolution on the center of the screen.

    Picture tube with an electron gun having non-circular aperture
    5.
    发明授权
    Picture tube with an electron gun having non-circular aperture 失效
    具有非圆形孔径的电子枪的显像管

    公开(公告)号:US4399388A

    公开(公告)日:1983-08-16

    申请号:US197643

    申请日:1980-10-16

    IPC分类号: H01J29/50 H01J29/56 H01J29/46

    CPC分类号: H01J29/566 H01J29/503

    摘要: In a picture tube comprising an envelope including a phosphor screen and an electron gun generating an electron beam, wherein the electron beam is deflected by magnetic deflecting fields, the electron gun comprising a triode section and a focusing section along a path of the electron beam, the triode sections being provided with an electrode containing a non-circular aperture having major and minor axes of symmetry, the major axis being parallel to a horizontal direction the focusing section having a means for forming an electrostatic focusing lens having a vertical focal length and a horizontal focal length, said vertical focal length more elongated than said horizontal focal length.

    摘要翻译: 在包括荧光屏的外壳和产生电子束的电子枪的显像管中,其中电子束被磁偏转场偏转,该电子枪沿着电子束的路径包括三极管部分和聚焦部分, 所述三极管部分设置有包含具有主轴和短轴对称性的非圆形孔的电极,所述长轴平行于水平方向,所述聚焦部具有用于形成具有垂直焦距的静电聚焦透镜的装置和 水平焦距,所述垂直焦距比所述水平焦距更长。

    Electron gun structure
    6.
    发明授权
    Electron gun structure 失效
    电子枪结构

    公开(公告)号:US4334169A

    公开(公告)日:1982-06-08

    申请号:US85678

    申请日:1979-10-17

    CPC分类号: B82Y10/00 H01J29/51

    摘要: An electron gun comprises cathodes for emitting three electron beams, and grid electrodes forming at least two asymmetric electrostatic lenses along three electron gun axes. The lenses focus and deflect the electron beams to converge on a color cathode ray tube screen. The first asymmetric lens, in response to the focus voltage being varied, deflects the beam at a first angle and the second asymmetric lens deflects the beam at a second angle to compensate for the first angle deflection caused by the first asymmetric lens.

    摘要翻译: 电子枪包括用于发射三个电子束的阴极,以及沿着三个电子枪轴形成至少两个非对称静电透镜的栅格电极。 透镜聚焦并偏转电子束以会聚在彩色阴极射线管屏幕上。 响应于聚焦电压变化,第一非对称透镜以第一角度偏转光束,并且第二非对称透镜以第二角度偏转光束以补偿由第​​一非对称透镜引起的第一角度偏转。

    In-line electron gun for a colored cathode ray
    7.
    发明授权
    In-line electron gun for a colored cathode ray 失效
    用于彩色阴极射线的在线电子枪

    公开(公告)号:US5202603A

    公开(公告)日:1993-04-13

    申请号:US642687

    申请日:1991-01-17

    IPC分类号: H01J29/50

    摘要: A color cathode ray tube apparatus is provided with an electron gun assembly which emits three electron beams and focuses and converges the electron beam onto a phosphor screen. In the gun assembly, the electron beams generated from cathodes are accelerated and controlled by first and second grids and pass through third, fourth and fifth grids. The third and fourth grids have single rectangular apertures common to the three electron beams, respectively, which are faced to each other and have different heights and widths. Each of the fourth and fifth grids have individual apertures which allow the corresponding electron beams to pass therethrough, respectively. The third and fifth grids is maintained at fixed potentials and a potential of the fourth grid is adjusted. Thus, individual focusing and convergence electron lenses are formed between the fourth and fifth grids. A single and common asymmetrical electron lens is formed between the third and fourth grids, when a potential difference between the third and fourth grids is produced. A misconvergence of three electron beams produced due to the adjustment of the individual electron lenses is corrected by the common asymmetrical electron lens in such a manner that the side electron beams are deflected in accordance with the potential difference.

    Cathode ray tube
    8.
    发明授权
    Cathode ray tube 失效
    CATHODE RAY TUBE

    公开(公告)号:US5077497A

    公开(公告)日:1991-12-31

    申请号:US430284

    申请日:1989-11-02

    IPC分类号: H01J29/48 H01J29/96

    CPC分类号: H01J29/96

    摘要: A cathode ray tube having an electron gun assembly in which a plurality of electrodes constitute an electron beam generating unit for generating electron beams, and an electron lens unit for focusing the generated beams on a predetermined location on a phosphor screen. The electron gun assembly further contains a pair of insulating support rods for supporting the electrodes, a resistor unit for applying a voltage to at least one of the electrodes. A metal ring is mounted in contact with a predetermined electrode of the electron lens unit and surrounds the insulating support rods. Terminal voltage pickup terminals apply a voltage to the resistor unit. At least a first and second intermediate voltage pickup terminal supply a voltage from the resistor unit to a first and second electrode. The first and second intermediate voltage pickup terminals are located in relation to the metal ring such that a discharge is prevented and image quality is preserved.

    摘要翻译: 一种具有电子枪组件的阴极射线管,其中多个电极构成用于产生电子束的电子束产生单元,以及用于将产生的光束聚焦在荧光屏上的预定位置上的电子透镜单元。 电子枪组件还包括一对用于支撑电极的绝缘支撑杆,用于向至少一个电极施加电压的电阻器单元。 金属环安装成与电子透镜单元的预定电极接触并且包围绝缘支撑杆。 端子电压拾取端子向电阻单元施加电压。 至少第一和第二中间电压拾取端子将来自电阻器单元的电压提供给第一和第二电极。 第一和第二中间电压拾取端子相对于金属环定位,使得防止放电并保持图像质量。

    Electron gun assembly
    9.
    发明授权
    Electron gun assembly 失效
    电子枪组装

    公开(公告)号:US4885505A

    公开(公告)日:1989-12-05

    申请号:US235719

    申请日:1988-08-22

    IPC分类号: H01J29/48 H01J29/50

    CPC分类号: H01J29/503

    摘要: In an electron gun assembly, three electron beams emitted from cathode are focused by focusing electrodes and directed to accelerating electrodes through intermediate electrode. Three electron beams are converged on a predetermined point near a screen by accelerating electrodes. The accelerating electrodes are supplied with a first potential and are connected to a ground through a resistor and a stem pin. The intermediate electrodes are connected to the resistor and are maintained at a second potential. The focusing electrodes are connected to another stem pin and supplied with a third potential through another stem pin so that the third potential can be independently adjusted.

    摘要翻译: 在电子枪组件中,从阴极发射的三束电子束通过聚焦电极聚焦,并通过中间电极引导到加速电极。 三个电子束通过加速电极会聚在屏幕附近的预定点上。 加速电极被提供第一电位,并通过电阻器和引脚连接到地。 中间电极连接到电阻器并保持在第二电位。 聚焦电极连接到另一个引脚,并通过另一个引脚引脚提供第三个电位,从而可以独立地调整第三个电位。

    Electron gun for color-picture tube device
    10.
    发明授权
    Electron gun for color-picture tube device 失效
    电子枪用于彩色显像管装置

    公开(公告)号:US4945284A

    公开(公告)日:1990-07-31

    申请号:US320740

    申请日:1989-03-08

    IPC分类号: H01J29/48 H01J29/50 H01J29/96

    摘要: An electron gun for color-picture tube device comprises a final accelerating electrode and a focusing electrode divided into plural electrode units in the axial direction of the tube. A first focusing electrode unit adjacent to the final accelerating electrode is connected to a second focusing electrode unit adjacent to the first focusing electrode unit through a resistor. A focusing voltage being change in synchronous with the deflection of an electron beam is applied to the first focusing electrode unit. The resistor is used for removing the a.c. components from the focusing voltage. Then, the removed focusing voltage is applied to the second focusing electrode. For the electron beam deflected on the peripheral part of the screen, a quadrupole lens is formed. On the first focusing electrode unit side opposite to the second focusing electrode unit are formed first electron beam path holes whose major axes extend horizontally. On the second focusing electrode unit side opposite to the first focusing electrode unit are formed second electron beam path holes whose major axes extend vertically. As a result, the quadrupole lens serves to suppress a halo portion.