发明名称 |
Color cathode ray tube having an improved electron gun |
摘要 |
A color cathode ray tube having at least an electron gun, constituted by a cathode for forming a plurality of electron beams arranged in-line, and a focusing electrode and an anode constituting a main lens for focusing and accelerating the electron beams and a fluorescent screen. The focusing electrode includes at least a first division electrode and a second division electrode arranged with a gap for controlling a scanning speed of the electron beams in common. The second division electrode is opposed to the anode and has, in an opposed surface thereof, a single opening for passing the plurality of electron beams in common. A length of the first division electrode in the axial direction of the tube is longer than a length of the second division electrode in the axial direction of the tube.
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申请公布号 |
US6731056(B2) |
申请公布日期 |
2004.05.04 |
申请号 |
US20020073186 |
申请日期 |
2002.02.13 |
申请人 |
HITACHI, LTD.;HITACHI DEVICE ENGINEERING CO., LTD. |
发明人 |
TOJO TSUTOMU;TAMURA HIROYUKI;MISONO MASAYOSHI |
分类号 |
H01J29/50;(IPC1-7):H01J29/46;H01J29/62 |
主分类号 |
H01J29/50 |
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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