发明名称 |
Cathode-ray tube apparatus |
摘要 |
A deflection coil for deflecting an electron beam emitted from an electron gun is provided outside a cathode-ray tube in which the electron gun is housed, and a phosphor screen is formed. The cathode-ray tube further includes a velocity modulation coil for modulating a horizontal scanning velocity of an electron beam, a first magnetic substance surrounding an outer circumference of the cathode-ray tube from outside the velocity modulation coil, and a second magnetic substance surrounding the outer circumference of the cathode-ray tube between the deflection coil and the first magnetic substance. Because of this, the sensitivity of velocity modulation can be enhanced effectively with a simple configuration while deflection distortion is prevented.
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申请公布号 |
US2005206329(A1) |
申请公布日期 |
2005.09.22 |
申请号 |
US20050069071 |
申请日期 |
2005.03.01 |
申请人 |
MATSUSHITA TOSHIBA PICTURE DISPLAY CO., LTD. |
发明人 |
MORIMOTO HIROJI;NISHIYAMA KOJI;IWASAKI KATSUYO;SATOU AKIRA;TANIWA KENICHIRO |
分类号 |
H01J29/76;(IPC1-7):H01J29/58 |
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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