发明名称 |
Deflection unit for a color television display tube |
摘要 |
Deflection unit (5) in which field-conducting elements (9,10) are provided between the field deflection coil (8) and the line deflection coil (7) so that a good level of astigmatism as well as an acceptably small coma error and a reduced EW frame distortion are obtained. In order to prevent that the field-conducting elements (9,10) from having a detrimental influence on the ten-pole field generated by the field deflection coil (8), each of the said elements is formed as a slightly curved plate having a central portion (15) on which two limbs (17,19) extending substantially transversely to the axis (Z) of the annular member (6) are formed.
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申请公布号 |
US4620174(A) |
申请公布日期 |
1986.10.28 |
申请号 |
US19850718052 |
申请日期 |
1985.03.29 |
申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
BEELAARD, WILHELMUS A. J.;DE VOLDER, JOHANNES A. P. |
分类号 |
H01J29/56;H01J29/76;(IPC1-7):H01F1/00 |
主分类号 |
H01J29/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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