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公开(公告)号：US5901029A
公开(公告)日：1999-05-04
申请号：US842787
申请日：1997-04-16
CPC分类号： H01F13/00 , H04N9/29 , H01J2229/0053
摘要： In a method of testing a color cathode ray tube, an electron gun assembly is energized to emit electron beams and only a horizontal deflection magnetic field is applied to the electron beams so that a line image is displayed on a screen. A degaussing coil is located in front of the panel and a degaussing magnetic field having a frequency the same as that of a commercial power source. Thereafter, the degaussing coil is moved in a direction away from the panel and is deenergized when the coil is removed from the panel at a predetermined distance. A vertical deflecting coil is energized to display an image and a picture quality of the tube is tested.
摘要翻译： 在测试彩色阴极射线管的方法中，电子枪组件通电以发射电子束，并且只有水平偏转磁场被施加到电子束，使得线图像显示在屏幕上。 消磁线圈位于面板的前面，并具有与商用电源相同的频率的消磁磁场。 此后，消磁线圈沿着离开面板的方向移动，并且当线圈以预定距离从面板移除时断电。 垂直偏转线圈通电以显示图像，并测试管的图像质量。
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公开(公告)号：US5506470A
公开(公告)日：1996-04-09
申请号：US464465
申请日：1995-06-05
申请人： Masatsugu Inoue , Tohru Takahashi
发明人： Masatsugu Inoue , Tohru Takahashi
CPC分类号： H01J29/861 , H01J2229/862
摘要： A color cathode ray tube includes a face plate having a curved inner surface and a substantially rectangular effective area. A phosphor screen is formed on the inner surface of the face plate, and a shadow mask is arranged to oppose the phosphor screen. The effective area is formed such that, in an area of the effective area which is away from the center of the effective area by 1/2 or more of a distance between the center of the effective area and an axial end portion of the effective area in the major axis, a difference between the thickness of the face plate at a point which is on the minor axis and located away from the center of the effective area by a predetermined distance and the thickness of the face plate at a point which is on the diagonal axis and located away from the center of the effective area by the predetermined distance is smaller than a difference between the thickness of the face plate at the point on the diagonal axis and the thickness of the face plate at a point which is on the major axis and located away from the center of the effective area by the predetermined distance.
摘要翻译： 彩色阴极射线管包括具有弯曲内表面和大致矩形有效面积的面板。 荧光屏形成在面板的内表面上，并且荫罩布置成与荧光屏相对。 有效区域形成为在有效区域的中心与有效区域的中心与有效区域的轴向端部之间的距离为1/2以上的有效区域的区域 在长轴上，面板在短轴上的位置处远离有效区域的中心距离预定距离处的面板之间的差异以及面板的开口处的厚度 对角线并且远离有效区域的中心距离预定距离小于在对角轴上的点处的面板的厚度与面板的对角轴上的点处的厚度之间的差 并且远离有效区域的中心预定距离。
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公开(公告)号：US5416379A
公开(公告)日：1995-05-16
申请号：US196533
申请日：1994-02-15
申请人： Masatsugu Inoue , Takeshi Fujiwara
发明人： Masatsugu Inoue , Takeshi Fujiwara
CPC分类号： H01J29/861 , H01J29/07 , H01J2229/0788 , H01J2229/862
摘要： A color cathode-ray tube includes a curved shadow mask formed having a number of apertures and a substantially rectangular effective surface facing the inner surface of the panel. The effective surface of the shadow mask has a center through which the tube axis passes, a horizontal axis passing through the center and at right angles to the tube axis, and a vertical axis extending and at right angles to the tube axis and the horizontal axis. The effective surface of the shadow mask is formed so that, in the region located on the horizontal axis, the radius of curvature in the direction of the horizontal axis of the surface is larger than the radius of curvature in the direction of the vertical axis of the surface in a region substantially halfway between the center of the surface and a horizontal end of the surface, and so that, in the region located on the horizontal axis, the horizontal radius of curvature is smaller than the vertical radius of curvature in a region near the horizontal end portion.
摘要翻译： 彩色阴极射线管包括形成有多个孔的弯曲荫罩和面向面板内表面的大致矩形的有效表面。 荫罩的有效表面具有管轴穿过的中心，穿过中心并与管轴成直角的水平轴线，以及垂直于管轴线和水平轴线成直角的垂直轴线 。 阴影掩模的有效表面形成为使得在位于水平轴线的区域中，表面的水平轴方向上的曲率半径大于垂直轴方向的曲率半径 大致在表面的中心和表面的水平端之间的中间的区域中的表面，并且在位于水平轴线的区域中，水平曲率半径小于区域中的垂直曲率半径 靠近水平端部。
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公开(公告)号：US5198960A
公开(公告)日：1993-03-30
申请号：US311862
申请日：1989-02-17
CPC分类号： H01J29/003 , H04N9/29 , H01J2229/0053
摘要： A degaussing current whose frequency is L Hz is supplied to a degaussing apparatus, and a constant amplitude vertical deflection current whose frequency is M Hz is supplied to a deflection yoke. The degaussing current is an A.C. current, and its frequency L Hz is determined such that the value of M/L is not an integer.
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公开(公告)号：US5225736A
公开(公告)日：1993-07-06
申请号：US696755
申请日：1991-05-07
CPC分类号： H01J29/76 , H01J29/566 , H01J29/707
摘要： The invention provides a novel color cathode ray tube apparatus incorporating an eight-pole permanent magnet means, and thereby deflective aberration of electron beams caused by deflected magnetic field can securely be minimized. Integral structure of a plurality of magnetic poles permits the concerned to easily form up the eight-pole permanent magnet ring.
摘要翻译： 本发明提供一种并入八极永久磁铁装置的新型彩色阴极射线管装置，从而可以将由偏转磁场引起的电子束偏转像差最小化。 多个磁极的整体结构允许有关方面容易地形成八极永磁体环。
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公开(公告)号：US5206559A
公开(公告)日：1993-04-27
申请号：US911788
申请日：1992-07-13
CPC分类号： H01J29/566 , H01J29/703 , H01J29/76
摘要： In a cathode ray tube, a first pair of permanent magnet pieces are arranged along a horizontal direction and fixed on an end portion of a deflection unit at an electron gun side in such a manner that poles of one of the magnet pieces face the other poles of the other magnet piece. A second pair of permanent magnet pieces are arranged along a vertical direction, separated from the first pair of permanent magnet pieces by being fixed on a neck portion, forward of the electron gun assembly, and in such a manner that poles of one of the, magnet pieces face the other poles of the other magnet piece.
摘要翻译： 在阴极射线管中，沿着水平方向布置第一对永磁体片，并以电子枪侧的偏转单元的端部固定，使得一个磁体片的磁极面对另一个磁极 的另一个磁铁片。 第二对永磁体片沿垂直方向排列，通过固定在电子枪组件前面的颈部上并以这样的方式与第一对永磁体片分离， 磁铁片面对另一个磁铁片的另一个磁极。
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公开(公告)号：US4881004A
公开(公告)日：1989-11-14
申请号：US236184
申请日：1988-08-24
IPC分类号： H01J29/07
CPC分类号： H01J29/07 , H01J2229/0788
摘要： In a color cathode ray tube, a shadow mask and/or a panel is formed into the following shape. In the shadow mask and/or the panel, a radius of curvature at a central portion in a section taken along an X-Z parallel plane is larger than that at an effective diameter edge portion on the Y axis, and a radius of curvature at an effective diameter edge portion on the X axis is smaller than that at a diagonal effective diameter edge portion. In the panel, a difference between a thickness at an effective diameter edge portion and a thickness on the X axis in a section of the panel taken along a Y-Z parallel plane is maximum at a position between the center of the panel and the effective diameter edge portion on the X axis.
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公开(公告)号：US4700104A
公开(公告)日：1987-10-13
申请号：US782443
申请日：1985-10-01
IPC分类号： H01J29/07
CPC分类号： H01J29/07
摘要： A color picture tube comprises a tube envelope having a tube axis and including a neck section, a funnel section and a panel section, an electron gun assembly for emitting at least three electron beams, and a shadow mask assembly disposed in the tube envelope adjacent to the phosphor screen. The shadow mask assembly includes a shadow mask and a frame. The shadow mask has a plate portion which is formed having a curved surface with a dome-like shape opposing the phosphor screen and regularly arranged apertures each for allowing the three electron beams to pass through, and a skirt portion extending from the peripheral portion of the plate portion along the tube axis. The frame surrounds the peripheral portion of the skirt portion of the shadow mask, and the frame and the skirt portion of the shadow mask are coupled to each other by welding at a plurality of locations. The frame is made of a metal material having a thermal expansion coefficient higher than the shadow mask.
摘要翻译： 彩色显像管包括具有管轴线并包括颈部，漏斗部分和面板部分的管壳，用于发射至少三束电子束的电子枪组件和设置在管外壳中的荫罩组件 荧光屏。 荫罩组件包括荫罩和框架。 荫罩具有板状部，该板部形成为具有与荧光屏相对的圆顶状的曲面，并且规则地设置有用于允许三束电子束通过的孔，以及从该周边部延伸的裙部 板部分沿着管轴。 框架围绕荫罩的裙部的周边部分，并且荫罩的框架和裙部通过在多个位置处的焊接而彼此联接。 该框架由具有高于荫罩的热膨胀系数的金属材料制成。
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公开(公告)号：US4697119A
公开(公告)日：1987-09-29
申请号：US815023
申请日：1985-12-31
IPC分类号： H01J29/07
CPC分类号： H01J29/07 , H01J2229/0788
摘要： The shadow mask of a color cathode ray tube has a number of apertures in the effective area passed by electron beams to the phosphor screen formed in the inner surface of the panel. The effective area where these apertures are distributed is in the nonspherical configuration adjacent to the phosphor screen surface. When taking the major axis as the X axis, the minor axis as the Y axis and the center of the shadow mask through where the tube axis (the Z axis) passes is made as a point of origin, the line of intersection defined by the plane containing the X axis and Z axis (X-Z plane) and the effective area is formed by the curve positioned as the panel side other than three points of which the circular arc passes in common through both terminal points and the center point on the above line of intersection, against the circular arc.
摘要翻译： 彩色阴极射线管的荫罩在电子束通过面板内表面形成的荧光屏的有效区域中具有多个孔径。 这些孔分布的有效面积是与荧光屏表面相邻的非球形构造。 将长轴作为X轴时，将作为Y轴的短轴和通过管轴（Z轴）所通过的阴影掩模的中心作为原点，将由 包含X轴和Z轴（XZ平面）的平面，并且有效面积由作为面板侧的曲线形成，除了圆弧通过两个终点和上述中心点共同通过的三个点 的交点，反对圆弧。
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公开(公告)号：US4677339A
公开(公告)日：1987-06-30
申请号：US775269
申请日：1985-09-12
CPC分类号： H01J29/07 , H01J2229/0788
摘要： In a color cathode ray tube with a shadow mask shaped as a nonspherical surface, a structure in which the curved surface shape of the effective area of the shadow mask in which apertures through which electron beams pass to a fluorescent screen are formed is made such that, going along the X axis, minimal values of radius of curvature of lines of intersection of the shadow mask and Y-Z parallel planes parallel to the minor axis Y and a central axis which passes through the mask's center and is normal to the mask exist between the center and the edges of the effective area. This prevents local doming.
摘要翻译： 在具有形成为非球面的荫罩的彩色阴极射线管中，形成有电子束通过荧光屏的孔的荫罩有效面的曲面形状形成为如下结构： 沿着X轴，阴影掩模与平行于短轴Y的YZ平行面的交点的曲率半径的最小值和通过掩模的中心并且垂直于掩模的中心轴存在于 中心和有效区域的边缘。 这可以防止局部隆起。
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