发明名称 |
Color cathode ray tube having an in-line electron gun with asymmetrical apertures |
摘要 |
A color cathode ray tube includes an in-line electron gun having a main lens with recessed apertures. The main lens is formed by two electrodes. These electrodes have outer edges and recessed apertures which allow passage of three in-line electron beams and which are arranged at a distance d1 and d2, respectively, from the outer edges. The outermost apertures are asymmetric. The difference d1-d2 and the asymmetry of the outermost apertures is such that both the beam displacement and the core haze asymmetry are minimal.
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申请公布号 |
US5818157(A) |
申请公布日期 |
1998.10.06 |
申请号 |
US19970869472 |
申请日期 |
1997.06.05 |
申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
STIL, LAMBERT J.;BOHLANDER, JOHANNES H.;SPANJER, TJERK G.;LOS, ABRAHAM A.;PENNINGS, ANTONIUS J. |
分类号 |
H01J29/50;H01J29/51;(IPC1-7):H01J26/62 |
主分类号 |
H01J29/50 |
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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