发明授权
- 专利标题： Cathode ray tube which improves deflection aberration
- 专利标题（中）： 改善偏转像差的阴极射线管
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申请号： US911788申请日： 1992-07-13
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公开(公告)号： US5206559A公开(公告)日： 1993-04-27
- 发明人: Takeshi Fujiwara , Kiyoshi Tokita , Masatsugu Inoue
- 申请人： Takeshi Fujiwara , Kiyoshi Tokita , Masatsugu Inoue
- 申请人地址： JPX Kawasaki
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JPX Kawasaki
- 优先权： JPX1-202446 19890804; JPX1-252105 19890929
- 主分类号： H01J29/56
- IPC分类号： H01J29/56 ; H01J29/70 ; 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.
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