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公开(公告)号：EP1304716A1
公开(公告)日：2003-04-23
申请号：EP02705166.3
申请日：2002-03-14
发明人： YAMAUCHI, Naoki , IGUCHI, Hideo , OMAE, Hideharu , KUMEI, Yoshimi , OZAWA, Tetsuro , KANNAN, Yoko
IPC分类号： H01J29/02
CPC分类号： H01J29/185 , H01J29/06 , H01J2229/003 , H01J2229/863 , H01J2229/8634
摘要： In a cathode ray tube including a panel provided with a phosphor screen, a funnel integrated with the panel, an electron gun disposed inside the funnel, a magnetic shield (1) for shielding an electron beam (5) emitted from the electron gun against an external magnetic field, and a frame (2) for holding the magnetic shield (1), the magnetic shield (1) includes, at a portion to be joined with the frame (2), a bent portion (20) bent toward a tube axis side, and a thickness T of the bent portion (20) at its edge on the tube axis side is 0.08 mm or less. By making the thickness T small, halation that is liable to occur in a cathode ray tube with a large deflection angle can be suppressed because electron beams reflected from an end face (11) and allowed to reach the screen without being shielded by the frame (2) are reduced.
摘要翻译： 在包括设置有荧光屏的面板的阴极射线管中，与面板一体化的漏斗，设置在漏斗内的电子枪，用于屏蔽从电子枪发射的电子束（5）的磁屏蔽（1） 外部磁场和用于保持磁屏蔽（1）的框架（2），磁屏蔽（1）在与框架（2）接合的部分处包括弯曲部分（20），弯曲部朝向管 弯曲部（20）的管轴侧的边缘的厚度T为0.08mm以下。 通过使厚度T小，可以抑制由偏转角大的阴极射线管发生的晕变，因为从端面（11）反射而被屏幕不被屏幕遮蔽的电子束 2）减少。
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公开(公告)号：EP1251545A1
公开(公告)日：2002-10-23
申请号：EP01955649.7
申请日：2001-08-10
IPC分类号： H01J29/07
CPC分类号： H01J29/07 , H01J2229/0727 , H01J2229/0733
摘要： A cathode ray tube is provided, in which the flatness of a tension mask constituting a color-selection mechanism is maintained by a suitable stretching force, while with the tension mask, the influence of external magnetic fields, such as the terrestrial magnetism is suppressed, and the shifting of the electron beam is reduced. A tension mask made of a magnetostrictive material is used, the tension mask is stretched by a stretching force in a range maintaining the flatness of the tension mask, and the direction and strength of the stretching force are set such that vertical magnetic permeability of the tension mask increases, due to a magnetoelastic effect caused by the stretching force in the magnetostrictive material of the tension mask.
摘要翻译： 提供了一种阴极射线管，其中构成选色机构的张力荫罩的平坦度通过合适的拉伸力来保持，同时利用张力荫罩，抑制了地磁等外部磁场的影响， 并且电子束的移动减少。 使用由磁致伸缩材料构成的张力荫罩，在维持张力荫罩的平坦度的范围内通过拉伸力来张紧张力荫罩，并且设定张力的方向和强度，使得张力的垂直磁导率 由于张力掩模的磁致伸缩材料中的拉伸力引起的磁弹性效应，掩模增加。
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公开(公告)号：EP1246222A1
公开(公告)日：2002-10-02
申请号：EP00981839.4
申请日：2000-12-19
IPC分类号： H01J29/02
CPC分类号： H01J29/06 , H01J29/003 , H01J2229/003
摘要： The distribution of magnetic field of the terrestrialmagnetism is complicated. Thus, it is difficult to compensate the deviation of the arrival point of the electron beam onto the fluorescent material plane due to the influence of external magnetic field such as the terrestrialmagnetic field, when only an inner magnetic shield and a mask are installed in a flat type color CRT to avoid such influence, in certain regions on the earth, where such CRT is used. The first countermeasure of the influence is using of a stripe type color cathode ray tube, which has a large allowance to the deviation of the arrival point of the electron beam in the vertical direction. Next countermeasure is disposing of a filler made from non-magnetic material or hard magnetic material and/or a gap between the inner magnetic shield and the frame of the mask so as to flow out the magnetic flux, which come from the edge of inner magnetic shield and tend to flow into the inside space of the mask.
摘要翻译： 地磁的磁场分布是复杂的。 因此，当仅将内部磁屏蔽和掩模安装在平面内时，难以补偿由于诸如地磁场的外部磁场的影响而引起的电子束到达荧光材料平面上的到达点的偏差 使用彩色CRT以避免这种影响，在地球的某些区域使用这种CRT。 影响的第一个对策是使用条纹型彩色阴极射线管，它对电子束在垂直方向上的到达点的偏差有很大的余地。 接下来的对策是将由非磁性材料或硬磁性材料制成的填充物和/或内部磁屏蔽与掩模的框架之间的间隙布置成使得流出来自内部磁场边缘的磁通量 屏蔽并倾向于流入面罩的内部空间。
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公开(公告)号：EP1251545B1
公开(公告)日：2007-07-18
申请号：EP01955649.7
申请日：2001-08-10
IPC分类号： H01J29/07
CPC分类号： H01J29/07 , H01J2229/0727 , H01J2229/0733
摘要： A cathode ray tube wherein the flatness of a tension mask constituting a color selection mechanism is maintained under a proper tension, and wherein the deviation of electron beams is reduced by suppressing influences of external magnetic fields of geomagnetism etc. with a tension mask. A tension mask consisting of a magnetic material is used and tensioned under a tension of a range where the flatness is maintained. The direction and intensity of the tension are set so that the vertical permeability of the tension mask may increase under a magnetoelastic effect induced by the magnetic material of the tension mask.
摘要翻译： 一种阴极射线管，其中构成选色机构的张力荫罩的平坦度保持在适当的张力下，并且其中通过用张力荫罩抑制地磁等外部磁场的影响来减小电子束的偏差。 使用由磁性材料构成的张力荫罩，并在保持平坦度的范围内张紧张力。 张力的方向和强度被设定为使得张力掩模的垂直磁导率可以在由张力掩模的磁性材料引起的磁弹性效应下增加。
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