Deflection yoke having magnets for correcting raster distortion and cathode-ray tube apparatus having the deflection yoke
    31.
    发明授权
    Deflection yoke having magnets for correcting raster distortion and cathode-ray tube apparatus having the deflection yoke 失效
    具有用于校正光栅畸变的磁体的偏转磁轭和具有偏转线圈的阴极射线管装置

    公开(公告)号:US07061170B2

    公开(公告)日:2006-06-13

    申请号:US10515779

    申请日:2003-11-20

    申请人: Katsuyo Iwasaki

    发明人: Katsuyo Iwasaki

    IPC分类号: H01J29/70 H01J29/46

    摘要: A permanent magnet is selectively picked for a deflection yoke and provided on the periphery of the cathode ray tube for controlling the direction of an electron beam emitted towards a screen from an electron gun. The permanent magnet can adjust an irradiating point of the electron beam. The permanent magnet incorporates a magnetic substance that can be applied to at least one of the end faces of the magnet with a negative temperature characteristic. The magnetic substances can have different configurations and based on the saturation flux density of the permanent magnet, can be selected to match the permanent magnet to correct variation in the saturation flux density.

    摘要翻译: 选择性地选择永磁体用于偏转线圈并设置在阴极射线管的外围,用于控制从电子枪向屏幕发射的电子束的方向。 永磁体可以调节电子束的照射点。 永磁体包含可以施加到具有负温度特性的磁体的至少一个端面上的磁性物质。 磁性物质可以具有不同的配置,并且基于永磁体的饱和磁通密度,可以选择与永磁体匹配以校正饱和磁通密度的变化。

    Cathode ray tube device that reduces magnetic field leakage
    32.
    发明授权
    Cathode ray tube device that reduces magnetic field leakage 失效
    减少磁场泄漏的阴极射线管装置

    公开(公告)号:US06404133B1

    公开(公告)日:2002-06-11

    申请号:US09536038

    申请日:2000-03-27

    IPC分类号: H01J152

    CPC分类号: H01J29/003 H01J2229/0015

    摘要: Two closed-loop coils are respectively set at the top or the bottom of a cathode ray tube. These two closed-loop coils serves in a pair as a cancel coil. Each closed-loop coil is positioned so as to make an interlinkage with the magnetic field leakage that escapes from the deflection yoke, a part of the closed-loop coil running almost in parallel to the top or bottom edge of an effective display region of a front panel.

    摘要翻译: 两个闭环线圈分别设置在阴极射线管的顶部或底部。 这两个闭环线圈成对地用作消除线圈。 每个闭环线圈被定位成与从偏转线圈逸出的磁场泄漏形成互连,闭环线圈的一部分几乎平行于一个有效显示区域的顶部或底部边缘 前面板。

    Color CRT with cross-misconvergence correction device
    33.
    发明授权
    Color CRT with cross-misconvergence correction device 失效
    彩色CRT与交叉会聚纠正装置

    公开(公告)号:US06326742B1

    公开(公告)日:2001-12-04

    申请号:US09421858

    申请日:1999-10-20

    IPC分类号: H01J2970

    CPC分类号: H01J29/705

    摘要: A color cathode ray tube is composed of a glass bulb which has a front panel and a fluorescent screen set on an inner surface of the front panel, an in-line electron gun which is provided in the glass bulb and projects electron beams onto the fluorescent screen, a deflection means including horizontal and vertical deflection coils arranged outside the glass bulb, and a correction device for correcting cross-misconvergence. The correction device is provided with four correction coils that are respectively set for the four quadrants of a rectangular deflection region of the electron beams. The strength of the corrective magnetic fields generated by the correction coils becomes largest when the electron beams are deflected to a horizontal strip in the central part of both the upper and lower halves of the deflection region, and becomes nearly 0 when the electron beams are deflected to areas around the horizontal axis and top and bottom edges of the deflection region.

    摘要翻译: 彩色阴极射线管由玻璃灯泡组成,玻璃灯泡具有前面板和设在前面板内表面上的荧光屏,设置在玻璃灯泡中并将电子束投射到荧光灯上的直列式电子枪 屏幕,包括布置在玻璃灯泡外部的水平和垂直偏转线圈的偏转装置,以及用于校正交叉失会聚的校正装置。 校正装置设置有四个校正线圈,其分别设置用于电子束的矩形偏转区域的四个象限。 当电子束偏转到偏转区域的上半部和下半部的中央部分的水平条带时,校正线圈产生的校正磁场的强度变得最大,当电子束偏转时,校正磁场的强度变得接近0 到偏转区域的水平轴线和顶部和底部边缘周围的区域。

    Color display tube device
    34.
    发明授权
    Color display tube device 失效
    彩色显示管装置

    公开(公告)号:US06304044B1

    公开(公告)日:2001-10-16

    申请号:US09613324

    申请日:2000-07-11

    IPC分类号: H01J2976

    CPC分类号: H01J29/705

    摘要: A color display tube device includes a composite correction circuit having a series circuit of a first reactor coil and a first four-pole coil and a series circuit of a second reactor coil with a polarity opposite to that of the first reactor coil and a second four-pole coil, the two series circuits being connected in parallel, and a vertical control coil for applying a magnetic bias that changes in synchronization with a vertical deflection current to the first and second reactor coils. The composite correction circuit is connected in series to horizontal deflection coils. In the color display tube device using an in-line self-convergence system, it is made possible to correct a PQH mis-convergence and reduce pincushion distortion at the left and right occurring before correction by a monitor set while preventing deterioration of the focus performance.

    摘要翻译: 彩色显象管装置包括复合校正电路,该复合校正电路具有第一电抗器线圈和第一四极线圈的串联电路和具有与第一电抗器线圈的极性相反极性的第二电抗器线圈的串联电路, 所述两个串联电路并联连接的垂直控制线圈和用于施加与第一和第二电抗器线圈的垂直偏转电流同步变化的磁偏置的垂直控制线圈。 复合校正电路与水平偏转线圈串联连接。 在使用在线自会聚系统的彩色显像管装置中,可以通过监视器组来校正PQH误差收敛并减少校正前发生的左右的枕形失真,同时防止聚焦性能的劣化 。

    Terminal board cover and picture tube device using the same
    35.
    发明授权
    Terminal board cover and picture tube device using the same 失效
    端子板盖和显像管装置使用相同

    公开(公告)号:US5920149A

    公开(公告)日:1999-07-06

    申请号:US982651

    申请日:1997-12-02

    CPC分类号: H01J29/70 H05K1/0286

    摘要: A picture tube device comprises a CRT and a deflection yoke having a terminal board cover, wherein an adjustment tool is not completely extracted from through holes and can be smoothly shifted between through holes, and the position of another through hole can be confirmed and determined without visual confirmation, so that the position among the through holes can be easily determined. A correction circuit comprising variable resistors for correcting misconvergence is employed on a printed board installed on the deflection yoke. The printed board is covered with a terminal board cover made of insulating material and through holes for inserting an adjustment tool for adjusting the adjustment areas of the variable resistors are formed in the terminal board cover. The through holes are connected to each other with guiding grooves.

    摘要翻译: 显像管装置包括CRT和具有端子板盖的偏转线圈,其中调节工具不能从通孔中完全抽出并且可以在通孔之间平稳地移动,并且可以确定和确定另一个通孔的位置而没有 视觉确认,使得可以容易地确定通孔之间的位置。 在安装在偏转线圈上的印刷电路板上采用包括用于校正失会聚的可变电阻器的校正电路。 印刷电路板覆盖有由绝缘材料制成的端子板盖,并且在端子板盖中形成用于插入用于调节可变电阻器的调节区域的调节工具的通孔。 通孔用引导槽相互连接。

    Color cathode ray tube unit
    36.
    发明授权
    Color cathode ray tube unit 失效
    彩色阴极射线管单元

    公开(公告)号:US5157301A

    公开(公告)日:1992-10-20

    申请号:US594881

    申请日:1990-10-09

    IPC分类号: H01J29/51 H01J29/50 H01J29/54

    CPC分类号: H01J29/503 H01J2229/4841

    摘要: A color cathode ray unit which includes an in-line type electron gun, a deflection yoke disposed on the color CRT so as to generate substantially uniform horizontal and vertical deflection magnetic fields, thereby ensuring that an axially unsymmetrical lens electric field is dynamically generated between a first and a second focusing grid thereby correcting a distortion of electron beams caused by a magnetic field leaking from a dynamic convergence means.

    摘要翻译: 一种彩色阴极射线单元,其包括直列式电子枪,设置在彩色CRT上的偏转线圈,以便产生基本上均匀的水平和垂直偏转磁场,从而确保轴向不对称透镜电场在 第一和第二聚焦栅格,从而校正由从动态会聚装置泄漏的磁场引起的电子束的失真。

    Deflection yoke
    37.
    发明授权
    Deflection yoke 失效
    偏转轭

    公开(公告)号:US4939415A

    公开(公告)日:1990-07-03

    申请号:US291644

    申请日:1988-12-29

    IPC分类号: H01J29/70 H01J29/76

    CPC分类号: H01J29/701 H01J29/76

    摘要: A deflection yoke to be used in a color CRT apparatus having an aspherical face panel (30) has a pair of magnetic members (6,7) disposed on an outer surface of a larger diameter part of a cone shaped coil holding frame (11) in symmetry with respect to a vertical plan including center axis of the coil holding frame (11). Each of magnetic member (6,7) has upper and lower magnetic parts (6b,6c) for distorting vertical deflection magnetic field from barrel shape to pincushion shape, and the upper or lower magnetic parts (6b, or 6c) has protruded magnetic parts (6d or 6e), respectively protruded from the upper or lower magnetic parts (6b or 6c) towards screen part of the color CRT apparatus, for partially correction of pincushion distortion of raster at peripheral part of screen.

    摘要翻译: 在具有非球面面板(30)的彩色CRT装置中使用的偏转线圈具有设置在锥形线圈保持框架(11)的较大直径部分的外表面上的一对磁性构件(6,7) 相对于包括线圈保持框架(11)的中心轴的垂直平面对称。 每个磁性部件(6,7)具有用于使垂直偏转磁场从筒状变为枕形的上下磁性部分(6b,6c),并且上部或下部磁性部分(6b或6c)具有突出的磁性部分 (6d或6e),分别从彩色CRT装置的屏幕部分的上部或下部磁性部分(6b或6c)突出,用于部分地校正屏幕周围部分的光栅的枕形失真。