发明名称 |
Color display tube with coma correction |
摘要 |
Color display tube comprising an electron gun system (5) of the "in-line" type and an electromagnetic deflection unit. This unit is provided with coma correctors 14 and 14' at its gun side, which correctors, viewed from the gun system, provide a pincushion-shaped vertical deflection field component and a barrel-shaped vertical deflection field component. These components are used to reduce the "green droop" (=anisotropic Y coma) in the corners and at the ends of the display screen axes to an equal extent without the spot shape of the outer beams being influenced detrimentally.
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申请公布号 |
US5355050(A) |
申请公布日期 |
1994.10.11 |
申请号 |
US19920891368 |
申请日期 |
1992.05.29 |
申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
SLUYTERMAN, ALBERTUS A. S. |
分类号 |
H01J29/56;H01J29/70;H04N9/28;(IPC1-7):H01J29/54;H01J29/58 |
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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