| 发明名称 |
CATHODE-RAY TUBE |
| 摘要 |
A cathode-ray tube comprising an enclosure (15) including a funnel portion (13) made up of a large-diameter funnel part (16) and a generally pyramidal yoke part (17), wherein the contour of the yoke part (17) from a neck portion connection position (21) of the yoke part (17) around which a deflection yoke (30) is fitted to a vicinity of a boundary position (22) of the large-diameter funnel part satisfy the following inequality: 0.0</=( alpha 0- alpha min)</=0.04 where alpha 0 is the index representing the rectangularity in a deflection reference position, and alpha min is the minimum of the index over the whole yoke part. A sufficient atmospheric pressure strength of the vacuum enclosure having the pyramidal yoke part is ensured, and the deflection power is effectively reduced, thus providing a cathode-ray tube suitable to higher luminance and high-frequency deflection.
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| 申请公布号 |
WO9953516(A1) |
申请公布日期 |
1999.10.21 |
| 申请号 |
WO1999JP01962 |
申请日期 |
1999.04.13 |
| 申请人 |
KABUSHIKI KAISHA TOSHIBA;SANO, YUUICHI;MORI, HIDEO |
发明人 |
SANO, YUUICHI;MORI, HIDEO |
| 分类号 |
H01J29/76;H01J29/82;H01J29/86;(IPC1-7):H01J29/86 |
主分类号 |
H01J29/76 |
| 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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