专利汇可以提供Improved convergence and triad distortion correction means for wide angle cathode ray tube专利检索,专利查询,专利分析的服务。并且Improved dynamic convergence means and triad distortion correction means which may advantageously be formed upon the core of a deflection yoke of a color television cathode ray tube. The dynamic convergence means includes six windings disposed upon an annular core about the tube neck to form a hexagonal set of magnetic flux paths which deflect beams disposed in a delta or triangular array radially outward from the center of the array. A combination of horizontal- and vertical-rate signals are applied to vary the convergence as a function of beam deflection. Beam triad distortion is corrected by providing four correction windings upon a common core with the convergence means such that a quadrilateral flux pattern is produced within the tube neck. Horizontal- and vertical-rate signals are applied to the distortion correction windings for expanding the beam array in a first direction, and compressing it in a second direction perpendicular to the first. The triad distortion correction means flux paths may be oriented generally parallel to the sides of the cathode ray tube viewing screen and formed on a common core with a deflection yoke which produces negligible triad distortion along the diagonals of the viewing screen. In another embodiment, a second distortion correction means is provided for producing magnetic fields oriented at substantially 45* to those of the first distortion correction means. A combination of horizontaland vertical-rate currents are applied to compensate for triad distortion along the diagonals of the viewing screen.,下面是Improved convergence and triad distortion correction means for wide angle cathode ray tube专利的具体信息内容。
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