| 发明名称 |
CATHODE RAY TUBE |
| 摘要 |
<p>A shadow mask has a long axis (H) and a short axis (V) orthogonal to each other. Curvatures along the long axis of the mask satisfy both expressions of Cxm0<Cxmv and Cxmd<Cxmh, where Cxm0 is the curvature at the original O where the long axis and the short axis cross, Cxmv the curvature at a point (0, Ymvi) positioned more on the long-side side by at least 3/4 the distance from the original on the short axis to an effective dimension end, Cxmh the curvature at a point (Xmhi, 0) positioned in a section that is 2/4 to 3/4 the distance from the original on the long axis to an effective dimension end, and Cxmd the curvature at a coordinate point (Xmhi, Ymvi).</p> |
| 申请公布号 |
WO2005008713(A1) |
申请公布日期 |
2005.01.27 |
| 申请号 |
WO2004JP10371 |
申请日期 |
2004.07.14 |
| 申请人 |
KABUSHIKI KAISHA TOSHIBA;SHIMIZU, NORIO;TANI, MUNECHIKA;NIHEI, FUMIAKI |
发明人 |
SHIMIZU, NORIO;TANI, MUNECHIKA;NIHEI, FUMIAKI |
| 分类号 |
H01J29/07;H01J29/80;H01J29/86;(IPC1-7):H01J29/07 |
主分类号 |
H01J29/07 |
| 代理机构 |
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