发明公开
EP1103999A3 Deflection yoke and color cathode ray tube receiver using the same
审中-公开
偏转线圈和彩色阴极射线管与此偏转系统
- 专利标题: Deflection yoke and color cathode ray tube receiver using the same
- 专利标题(中): 偏转线圈和彩色阴极射线管与此偏转系统
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申请号: EP00403234.8申请日: 2000-11-20
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公开(公告)号: EP1103999A3公开(公告)日: 2004-02-11
- 发明人: Aoki, Kyousuke, c/o Sony Motomiya Corporation
- 申请人: SONY CORPORATION
- 申请人地址: 7-35, Kitashinagawa 6-chome Shinagawa-ku Tokyo JP
- 专利权人: SONY CORPORATION
- 当前专利权人: SONY CORPORATION
- 当前专利权人地址: 7-35, Kitashinagawa 6-chome Shinagawa-ku Tokyo JP
- 代理机构: Thévenet, Jean-Bruno
- 优先权: JP32914299 19991119; JP2000304491 20001004
- 主分类号: H01J29/76
- IPC分类号: H01J29/76 ; H01J29/70
摘要:
In a deflection yoke for use in a color cathode ray tube receiver, two sets (30, 31) of sextuple pole coils formed of bifilar windings are disposed around the orbits of three electron beams emitted from an electron gun of a cathode ray tube. Horizontal-period parabolic currents produced in a bridge circuit consisting of saturable reactors (36, 37) are caused to flow in such sextuple pole coils (30,31). Further more the parabolic currents are modulated at the vertical period by the saturable reactors (36, 37). Then sextuple-pole magnetic fields are generated by the modulated parabolic currents to thereby exert vertical force on the three electron beams, hence realizing proper correction of ΔVCR to consequently optimize the balance between the corners and the center of a screen. Such optimization is conventionally difficult due to some restrictions existing in the winding distribution of a vertical deflection coil and a horizontal deflection coil in relation to convergence and focus of side beams.
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