公开(公告)号：EP0977239A3

公开(公告)日：2002-04-24

申请号：EP99305892.4

申请日：1999-07-26

申请人： Hitachi, Ltd. ,  Hitachi Media Electronics Co., Ltd.

发明人： Fukuma, Kouji ,  Okuyama, Nobutaka ,  Sakurai, Soichi ,  Ikeda, Misao ,  Sasaki, Tomohiko ,  Yukimatsu, Takanori

IPC分类号： H01J29/76

CPC分类号： H01J29/76

摘要： In a deflection yoke to be attached on a neck portion of a cathode ray tube for use, showing over 90° and equal or less than 115° in deflection angle thereof and having the neck being equal or greater than ϕ 18 mm and equal or less than ϕ 26 mm in diameter thereof, thickness of a magnetic core is thinned in vertical direction with respect to in horizontal direction, and sizes of horizontal and vertical deflection coils and the magnetic core are selected to be equal or greater than 80 mm and equal or less than 100 mm, equal or greater than 50 mm and equal or less than 70 mm, and equal or greater than 30 mm and equal or less than 50 mm, respectively, and further the magnetic core is positioned near to the neck portion side of the cathode ray tube with respect to those horizontal and vertical deflection coils. With use of the deflection yoke having such structure as mentioned in the above, not only small-sizing and weight-lighting and low energy consumption can be obtained, but also it is possible to suppress generation of geometric distortion and misconvergence, while maintaining good deflection sensitivity characteristics, as well as to reduce useless magnetic field emission below the standardized value thereof.

公开(公告)号：EP0977239A2

公开(公告)日：2000-02-02

申请号：EP99305892.4

申请日：1999-07-26

申请人： HITACHI, LTD. ,  Hitachi Media Electronics Co., Ltd.

发明人： Fukuma, Kouji ,  Okuyama, Nobutaka ,  Sakurai, Soichi ,  Ikeda, Misao ,  Sasaki, Tomohiko ,  Yukimatsu, Takanori

IPC分类号： H01J29/76

CPC分类号： H01J29/76

摘要： In a deflection yoke to be attached on a neck portion of a cathode ray tube for use, showing over 90° and equal or less than 115° in deflection angle thereof and having the neck being equal or greater than φ 18 mm and equal or less than φ 26 mm in diameter thereof, thickness of a magnetic core is thinned in vertical direction with respect to in horizontal direction, and sizes of horizontal and vertical deflection coils and the magnetic core are selected to be equal or greater than 80 mm and equal or less than 100 mm, equal or greater than 50 mm and equal or less than 70 mm, and equal or greater than 30 mm and equal or less than 50 mm, respectively, and further the magnetic core is positioned near to the neck portion side of the cathode ray tube with respect to those horizontal and vertical deflection coils.
With use of the deflection yoke having such structure as mentioned in the above, not only small-sizing and weight-lighting and low energy consumption can be obtained, but also it is possible to suppress generation of geometric distortion and misconvergence, while maintaining good deflection sensitivity characteristics, as well as to reduce useless magnetic field emission below the standardized value thereof.

摘要翻译： 在安装在阴极射线管的颈部上的偏转线圈中，偏转角超过90度且等于或小于115度，并且颈部等于或大于φ18mm等于或等于 比其直径为26mm，磁芯的厚度相对于水平方向在垂直方向上变薄，并且水平和垂直偏转线圈和磁芯的尺寸选择为等于或大于80mm，等于或大于等于或等于 小于100mm，等于或大于50mm且等于或小于70mm，等于或大于30mm且等于或小于50mm，此外，磁芯位于靠近颈部侧 阴极射线管相对于那些水平和垂直偏转线圈。 通过使用具有上述结构的偏转线圈，不仅可以获得小尺寸和重量照明以及低能量消耗，而且可以抑制几何畸变和失会聚的产生，同时保持良好的偏转 灵敏度特性，以及将无用的磁场发射降低到标准值以下。