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公开(公告)号：US5489824A
公开(公告)日：1996-02-06
申请号：US197081
申请日：1993-05-17
CPC分类号： H04N3/26 , H01J29/563 , H01J29/76 , H04N9/285
摘要： A deflection apparatus produces a field gradient that reduces a tendency of a major axis of a beam spot to become elongated at each corner, at each end of a horizontal axis and at each end of a vertical axis of a display screen relative to the beam spot at the center of the display screen. A beam spot stigmator causes the beam spot to be substantially anastigmatic at each of the corners, the end of the horizontal axis and the end of the vertical axis of the display screen.
摘要翻译： 偏转装置产生场梯度，其减小了光束斑点的长轴在每个角部处，在水平轴线的每个端部处以及在显示屏幕的垂直轴线的每个端部处相对于光束点变细的趋势 在显示屏的中央。 光斑瞄准器使得光束点在每个角部，水平轴线的端部和显示屏幕的垂直轴线的端部处基本上是非对称的。
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公开(公告)号：US5327051A
公开(公告)日：1994-07-05
申请号：US554503
申请日：1990-07-19
摘要： A deflection apparatus includes a pair of quadrupole arrangements for producing a pair of quadrupole fields in a beam path of an electron beam at different distances from a display screen. In an embodiment of the invention, the first and second quadrupole arrangements and a main deflection field producing arrangement cooperate to converge three electron beams, R, G and B, with one another.
摘要翻译： 偏转装置包括一对四极装置，用于在与显示屏不同的距离处的电子束的光束路径中产生一对四极场。 在本发明的一个实施例中，第一和第二四极配置和主偏转场产生装置配合使三个电子束R，G和B彼此收敛。
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公开(公告)号：US5028850A
公开(公告)日：1991-07-02
申请号：US554644
申请日：1990-07-19
CPC分类号： H04N3/26 , H01J29/563 , H01J29/76 , H04N9/285
摘要： A deflection apparatus produces a field gradient that reduces a tendency of a major axis of a beam spot to become elongated at each corner, at each end of a horizontal axis and at each end of a vertical axis of a display screen relative to the beam spot at the center of the display screen. A beam spot stigmator causes the beam spot to be substantially anastigmatic at each of the corners, the end of the horizontal axis and the end of the vertical axis of the display screen.
摘要翻译： 偏转装置产生场梯度，其减小了光束斑点的长轴在每个角部处，在水平轴线的每个端部处以及在显示屏幕的垂直轴线的每个端部处相对于光束点变细的趋势 在显示屏的中央。 光斑瞄准器使得光束点在每个角部，水平轴线的端部和显示屏幕的垂直轴线的端部处基本上是非对称的。
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公开(公告)号：US4972519A
公开(公告)日：1990-11-20
申请号：US394692
申请日：1989-08-16
申请人： Michael D. Grote
发明人： Michael D. Grote
CPC分类号： H01J29/702 , H01J2229/5684 , H01J2229/5687
摘要： An assembly that includes four separate tabs is used for producing from a stray magnetic field flux, a pincushion shaped field in a portion of the neck of a cathode ray tube that is located at the rear of a deflection yoke for providing vertical convergence coma correction. Coils that are wound around the tabs form a quadrupole electromagnet that also provides dynamic convergence correction.
摘要翻译： 包括四个单独的接头的组件用于从杂散磁场通量产生阴极射线管的颈部的位于偏转线圈后部的枕形形状的场，用于提供垂直会聚昏迷校正。 缠绕在突片周围的线圈形成四极电磁体，其也提供动态会聚校正。
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