公开(公告)号：US4749975A

公开(公告)日：1988-06-07

申请号：US26215

申请日：1987-03-16

申请人： Kiyoshi Tokita ,  Kaneharu Kida ,  Michio Nakamura ,  Tooru Takahashi

发明人： Kiyoshi Tokita ,  Kaneharu Kida ,  Michio Nakamura ,  Tooru Takahashi

IPC分类号： H01J29/70 ,  H01J29/76 ,  H01F7/00

CPC分类号： H01J29/76

摘要： A deflection device generating magnetic field for electron beam deflection comprises, a cylindrical mold, a horizontal deflection coil provided inside the mold, a magnetic core attached to outside of the mold, a vertical deflection coil wound on the core, and magnetic member means for modifying deflection field distribution, interposed between the mold and vertical deflection coil.The deflection device further includes a porous ceramic layer for heat dissipation coated on at least a part of the outer surfaces of the mold, horizontal deflection coil, vertical deflection coil and magnetic member means.

摘要翻译： 产生用于电子束偏转的磁场的偏转装置包括圆柱形模具，设置在模具内部的水平偏转线圈，附接到模具外部的磁芯，缠绕在芯上的垂直偏转线圈和用于修改的磁性构件装置 偏转场分布，夹在模具和垂直偏转线圈之间。 偏转装置还包括用于散热的多孔陶瓷层，其涂覆在模具的外表面的至少一部分，水平偏转线圈，垂直偏转线圈和磁性构件装置上。