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1. 发明公开

EP0073472A3 Magnetic focusing type cathode ray tube 失效
标题翻译： MAGNETIC聚焦型阴极射线管
公开(公告)号：EP0073472A3
公开(公告)日：1983-07-20
申请号：EP82107819
申请日：1982-08-25
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Shimoma, Taketoshi , Fukuda, Kumio , Shimaoogi, Toshio
IPC分类号： H01J29/66
CPC分类号： H01J29/64
摘要： A cathode ray tube has an in-line electron gun incorporated into a neck portion of the envelope. The electron gun is comprised of an in-line cathode unit and a magnetic yoke assembly disposed approximately to the cathode unit and having a magnetic gap. The magnetic yoke assembly has two magnetic yokes (22, 25) disposed, respectively, on the cathode and screen sides of the magnetic gap and each having three yoke cylinders (22B to 22R, 25B to 25R) arranged in in-line form. The central yoke cylinder (22G) of the magnetic yoke (22) of the cathode side is formed longer than the side yoke cylinders (22B, '22R) thereof, while the central yoke cylinder (25G) of the magnetic yoke (25) of the screen side is formed shorter than the side yoke cylinders (258, 25R) thereof. Thus, the magnetic fields developed in the magnetic gap between the side yoke cylinders (22B to 22R) of the cathode side and the side yoke cylinders (25B to 25R) of the screen side becomes intense in the outward direction, and the side electron beams passing through the uniform magnetic field of the cathode side cylindrical yoke (21) are deflected in a Y direction. When the electron beams that passed through the magnetic gap pass through the cylindrical yoke (26) of the screen side, the Y directional deflecting components with respect to the side electron beams are canceled by an external magnetic field. As a result, the side electron beams are converged onto the central electron beam.

2. 发明授权

EP0073472B1 Magnetic focusing type cathode ray tube 失效
标题翻译： MAGNETIC聚焦型阴极射线管
公开(公告)号：EP0073472B1
公开(公告)日：1987-01-28
申请号：EP82107819.3
申请日：1982-08-25
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Shimoma, Taketoshi , Fukuda, Kumio , Shimaoogi, Toshio
IPC分类号： H01J29/66
CPC分类号： H01J29/64

3. 发明授权

EP0073473B1 A magnetic focusing type cathode ray tube 失效
标题翻译：磁性聚焦型阴极射线管
公开(公告)号：EP0073473B1
公开(公告)日：1985-11-27
申请号：EP82107821.9
申请日：1982-08-25
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Shimoma, Taketoshi , Fukuda, Kumio , Shimaoogi, Toshio
IPC分类号： H01J29/68
CPC分类号： H01J29/68 , H01J29/64

4. 发明公开

EP0073473A3 A magnetic focusing type cathode ray tube 失效
标题翻译：磁性聚焦型阴极射线管
公开(公告)号：EP0073473A3
公开(公告)日：1983-07-20
申请号：EP82107821
申请日：1982-08-25
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Shimoma, Taketoshi , Fukuda, Kumio , Shimaoogi, Toshio
IPC分类号： H01J29/66
CPC分类号： H01J29/68 , H01J29/64
摘要： ® A magnetic focusing type cathode ray tube comprises a magnetic focusing device positioned in front of the three beam in-line type cathode, for focusing the electron beams emitted from the cathode. The magnetic focusing device is constructed by a pair of magnetic yoke members (50A, 508). Each magnetic yoke members (50A, 50B) has three cylindrical magnetic yoke portions (51A, 52A, 53A; 51B, 52B, 53B) through which each electron beam can pass, and one cylindrical magnetic yoke portion (54A, 54B) having larger diameter for surrounding entire three electron beam passages (21, 22E, 22F). The cylindrical magnetic yoke portions of the yoke members are spaced each other at the given distance and facing to each other in the electron beam passages (21, 22E, 22F).

5. 发明公开

EP0073473A2 A magnetic focusing type cathode ray tube 失效
标题翻译： CRT与磁性聚焦。
公开(公告)号：EP0073473A2
公开(公告)日：1983-03-09
申请号：EP82107821.9
申请日：1982-08-25
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Shimoma, Taketoshi , Fukuda, Kumio , Shimaoogi, Toshio
IPC分类号： H01J29/68
CPC分类号： H01J29/68 , H01J29/64
摘要： ® A magnetic focusing type cathode ray tube comprises a magnetic focusing device positioned in front of the three beam in-line type cathode, for focusing the electron beams emitted from the cathode. The magnetic focusing device is constructed by a pair of magnetic yoke members (50A, 508). Each magnetic yoke members (50A, 50B) has three cylindrical magnetic yoke portions (51A, 52A, 53A; 51B, 52B, 53B) through which each electron beam can pass, and one cylindrical magnetic yoke portion (54A, 54B) having larger diameter for surrounding entire three electron beam passages (21, 22E, 22F). The cylindrical magnetic yoke portions of the yoke members are spaced each other at the given distance and facing to each other in the electron beam passages (21, 22E, 22F).

6. 发明公开

EP0073472A2 Magnetic focusing type cathode ray tube 失效
标题翻译：磁聚焦式阴极射线管
公开(公告)号：EP0073472A2
公开(公告)日：1983-03-09
申请号：EP82107819.3
申请日：1982-08-25
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Shimoma, Taketoshi , Fukuda, Kumio , Shimaoogi, Toshio
IPC分类号： H01J29/66
CPC分类号： H01J29/64
摘要： A cathode ray tube has an in-line electron gun incorporated into a neck portion of the envelope. The electron gun is comprised of an in-line cathode unit and a magnetic yoke assembly disposed approximately to the cathode unit and having a magnetic gap. The magnetic yoke assembly has two magnetic yokes (22, 25) disposed, respectively, on the cathode and screen sides of the magnetic gap and each having three yoke cylinders (22B to 22R, 25B to 25R) arranged in in-line form. The central yoke cylinder (22G) of the magnetic yoke (22) of the cathode side is formed longer than the side yoke cylinders (22B, '22R) thereof, while the central yoke cylinder (25G) of the magnetic yoke (25) of the screen side is formed shorter than the side yoke cylinders (258, 25R) thereof. Thus, the magnetic fields developed in the magnetic gap between the side yoke cylinders (22B to 22R) of the cathode side and the side yoke cylinders (25B to 25R) of the screen side becomes intense in the outward direction, and the side electron beams passing through the uniform magnetic field of the cathode side cylindrical yoke (21) are deflected in a Y direction. When the electron beams that passed through the magnetic gap pass through the cylindrical yoke (26) of the screen side, the Y directional deflecting components with respect to the side electron beams are canceled by an external magnetic field. As a result, the side electron beams are converged onto the central electron beam.
摘要翻译：阴极射线管具有结合在外壳的颈部中的一字形电子枪。该电子枪包括一个在线阴极单元和一个大致设置在阴极单元上并具有磁隙的磁轭组件。磁轭组件具有分别设置在磁隙的阴极侧和屏幕侧上的两个磁轭（22,25），每个磁轭具有以直列形式布置的三个磁轭柱体（22B至22R，25B至25R）。另外，阴极侧的磁轭（22）的中央磁轭筒（22G）形成得比侧部磁轭筒（22B，22R）长，而磁轭（25）的中央磁轭筒（25G）筛侧形成为比其侧轭筒体258,25R短。因此，在阴极侧的侧轭磁体（22B至22R）和屏幕侧的侧轭磁体（25B至25R）之间的磁隙中产生的磁场在向外方向上变强，并且侧面电子束通过阴极侧圆筒状磁轭（21）的均匀磁场的磁场向Y方向偏转。当穿过磁隙的电子束通过屏幕侧的圆柱形磁轭（26）时，相对于侧边电子束的Y方向偏转分量被外部磁场抵消。结果，侧边电子束会聚到中央电子束上。

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