发明授权
- 专利标题： Electron beam deflector
- 专利标题（中）： 电子束偏转器
-
申请号： US252542申请日： 1988-10-03
-
公开(公告)号： US4833370A公开(公告)日： 1989-05-23
- 发明人: Soichi Sakurai , Michitaka Osawa , Hiroki Oguro
- 申请人： Soichi Sakurai , Michitaka Osawa , Hiroki Oguro
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX62-251674 19871007
- 主分类号： H04N9/28
- IPC分类号： H04N9/28 ; H01J29/70 ; H01J29/76 ; H04N3/22
摘要：
Subcoils are provided on the core portion that serves as a deflection yoke, and a current for correcting convergence is supplied to the subcoils to correct convergence. Further, means is provided to suppress harmful current that is produced by mutual induction between the subcoils and the deflection coils, and whereby the deflection of electron beam and the correction of convergence are effected independently of each other.
信息查询
