发明名称 |
Funnel for cathode ray tube |
摘要 |
A diagonal inner-face curved portion is formed on an inner face of a diagonal portion of a pyramid-shaped yoke portion. The diagonal inner-face curved portion is formed to make at least one of partially inner-face curved portions at the major axis side and the minor axis side of the diagonal axis swell to the outward side. The partially inner-face curved portions at the major axis side and the minor axis side are formed by circular arced portions with different radii to each other. |
申请公布号 |
US6727641(B2) |
申请公布日期 |
2004.04.27 |
申请号 |
US20020328837 |
申请日期 |
2002.12.24 |
申请人 |
NIPPON ELECTRIC GLASS CO., LTD. |
发明人 |
KAKIGI HIROSHI |
分类号 |
H01J29/86;(IPC1-7):H01J31/00;H01J29/70 |
主分类号 |
H01J29/86 |
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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