发明名称 |
MULTIPLE BEAM CATHODE RAY TUBE HAVING REDUCED OFF-AXIS ABERRATIONS |
摘要 |
A multiple beam cathode ray tube having diminished off-axis aberrations and a reduced length. A tube having a flat or planar electron beam emitter means, focussing means and deflection means is provided. A novel accelerating means is provided for accelerating the emitted beams while causing them to converge towards a crossover point which is located not closer to the screen of the tube than the deflection means. The maximum off-axis distance of the beams when traversing the focussing and deflection means is reduced, and the off-axis aberrations are correspondingly diminished. |
申请公布号 |
DE3064967(D1) |
申请公布日期 |
1983.10.27 |
申请号 |
DE19803064967 |
申请日期 |
1980.10.29 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BECK, VERNON DAVID |
分类号 |
H01J31/08;H01J29/46;H01J29/50;H01J29/51;(IPC1-7):H01J29/46 |
主分类号 |
H01J31/08 |
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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