发明名称 |
Color cathode ray tube with shadow mask having inwardly bent skirt portions |
摘要 |
A color cathode ray tube wherein spring-back of a skirt of a shadow mask which causes the distortion of apertures of the shadow mask is prevented. The shadow mask is formed to exhibit a radius of curvature on an opposing pair of edges thereof. The shadow mask may be formed to exhibit a radius of curvature on four opposing edges. The radius of curvature is substantially equal to a radius of curvature of an apertured area of the shadow mask.
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申请公布号 |
US4286189(A) |
申请公布日期 |
1981.08.25 |
申请号 |
US19800122993 |
申请日期 |
1980.02.20 |
申请人 |
HITACHI, LTD. |
发明人 |
KOIZUMI, SACHIO;YAMAGUCHI, AKIO |
分类号 |
H01J29/07;(IPC1-7):H01J29/07 |
主分类号 |
H01J29/07 |
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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