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公开(公告)号：US3800176A
公开(公告)日：1974-03-26
申请号：US21777272
申请日：1972-01-14
申请人： RCA CORP
CPC分类号： H01J29/76
摘要： A color television display system is described which requires no dynamic convergence apparatus for small and medium size screen color picture tubes and which requires relatively simple dynamic convergence apparatus for large screen color picture tubes. The color picture tube includes an electron gun assembly for producing three adjacent horizontal in-line coplanar beams. The electron gun assembly includes a common three-aperture beam forming electrode for establishing precise alignment of the beams. The beams are substantially converged at all points in the scanned raster as they are deflected by a deflection yoke providing negative horizontal isotropic astigmatism and positive vertical isotropic astigmatism. The gun assembly includes magnetic shield members disposed around the two outside beam paths to shield those beams from a portion of the deflection field so that the rasters scanned by the three beams are of the same size. In addition, the color picture tube includes a faceplate having repeating groups of three different color phosphor strips and an aperture mask including a plurality of elongated slit apertures disposed adjacent the phosphor strips to enhance the light output from the picture tube.
摘要翻译： 描述了一种彩色电视显示系统，其不需要用于中小尺寸屏幕彩色显像管的动态会聚装置，并且其需要用于大屏幕彩色显像管的相对简单的动态会聚装置。 彩色显像管包括一个用于产生三个相邻的水平直列共面光束的电子枪组件。 电子枪组件包括用于建立光束的精确对准的公共三孔光束形成电极。 当被偏转线圈偏转时，光束在扫描光栅中的所有点基本会聚，从而提供负的水平各向同性散光和正垂直各向同性散光。 枪组件包括围绕两个外部光束路径设置的磁屏蔽构件，以将这些光束从偏转场的一部分屏蔽，使得由三个光束扫描的光栅具有相同的尺寸。 此外，彩色显像管包括具有三个不同颜色的荧光体条的重复组的面板和包括邻近磷光体条设置的多个细长的狭缝孔的孔径掩模，以增强从显像管的光输出。
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2.发明授权Color television deflection yoke having reduced variation in beam trio distortion 失效颜色电视偏差在波束畸变中具有减少的变化
公开(公告)号：US3735299A
公开(公告)日：1973-05-22
申请号：US3735299D
申请日：1971-10-04
申请人： RCA CORP
CPC分类号： H01J29/764
摘要： A deflection yoke for a color television receiver utilizing a delta gun shadow mask color picture tube has its winding distribution selected for minimizing the variations of the beam trio distortion around the picture tube display face for permitting use of a shadow mask yielding a greater and more uniform brightness over the viewed area of the tube.
摘要翻译： 利用三角枪阴影彩色显像管的彩色电视接收机的偏转线圈具有选择的绕组分布，用于最小化显像管显示面周围的三重波束变形的变化，以允许使用产生更大和更均匀的荫罩 在管的观察区域的亮度。
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公开(公告)号：US3721930A
公开(公告)日：1973-03-20
申请号：US3721930D
申请日：1972-01-14
申请人： RCA CORP
摘要： A deflection yoke for a television picture tube utilizing coplanar horizontal in-line electron guns includes vertical and horizontal coil windings selected for producing positive vertical isotropic astigmatism and negative horizontal isotropic astigmatism which underconverges the electron beams along the vertical deflection axis such that the beams are substantially converged at all points on a scanned raster of the picture tube. The desired convergence characteristics are achieved by winding the vertical and horizontal coil conductors such that the conductor distribution in each quadrant of a cross-section of the yoke is least in a region between 25* and 45* measured from the vertical deflection axis of the yoke.
摘要翻译： 一种利用共面水平一字形电子枪的电视显像管的偏转线圈包括垂直和水平线圈绕组，用于产生正垂直各向同性散光和负横向各向同性散光，其沿垂直偏转轴使电子束下变频，使得光束基本上 会聚在显像管的扫描光栅上的所有点上。 通过缠绕垂直和水平线圈导体来实现所需的会聚特性，使得轭的横截面的每个象限中的导体分布至少在从轭的垂直偏转轴测量的25°和45°之间的区域中 。
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