| 发明名称 |
One piece astigmatic grid for color picture tube electron gun and method of making same |
| 摘要 |
A one-piece astigmatic lens is formed in a grid by lancing a section thereof, coining the lanced section to a dimension wider than the trough formed by the lanced section and providing a beam aperture in the lanced and coined section.
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| 申请公布号 |
US4319160(A) |
申请公布日期 |
1982.03.09 |
| 申请号 |
US19800214916 |
申请日期 |
1980.12.10 |
| 申请人 |
NORTH AMERICAN PHILIPS CONSUMER ELECTRONICS CORP. |
发明人 |
SAY, DONALD L. |
| 分类号 |
H01J9/14;H01J29/62;(IPC1-7):H01J29/02 |
主分类号 |
H01J9/14 |
| 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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