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公开(公告)号：US6005338A
公开(公告)日：1999-12-21
申请号：US973448
申请日：1998-02-06
CPC分类号： H01J29/485 , H01J9/14
摘要： In order to provide a method of producing a cathode ray tube in a manner which well matches with a usual technique of producing a cathode ray tube by forming a spiral high-resistor on an inner face of a glass tube, in an electron gun of which a main focusing lens is configured by the spiral high-resistor, the step of fritting seal rings to both ends of the glass tube in which a hole is opened in the center portion; the step of applying a high-resistor paste to the glass tube, drying the paste, and then forming a spiral structure in the high-resistor film; the step of firing at 420 to 550 deg. C.; and the step of combining other electron gun parts to form the electron gun are included, and the spiral high-resistor is formed by a high-resistor paste in which ruthenium oxide is added to a glass material having a softening point that is lower than the annealing point of the glass tube.
摘要翻译： PCT No.PCT / JP97 / 01342 Sec。 371日期1998年2月6日 102（e）日期1998年2月6日PCT 1997年4月17日PCT公布。 第WO97 / 39471号公报 日期1997年10月23日为了提供一种制造阴极射线管的方法，其方法与通过在玻璃管的内表面上形成螺旋状高电阻来制造阴极射线管的常规技术相匹配， 主聚焦透镜由螺旋状高电阻构成的电子枪，将密封环烧结到玻璃管的在中心部分开有孔的两端的步骤; 向玻璃管施加高电阻浆料，干燥糊剂，然后在高电阻膜中形成螺旋结构的步骤; 在420〜550℃下烧成的工序。 C。; 并且包括组合其他电子枪部分以形成电子枪的步骤，并且螺旋形高电阻器由高电阻浆料形成，其中将氧化钌添加到软化点低于 退火点玻璃管。
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公开(公告)号：US6133685A
公开(公告)日：2000-10-17
申请号：US65327
申请日：1998-04-23
申请人： Masahiko Konda , Hideharu Omae , Nozomu Arimoto
发明人： Masahiko Konda , Hideharu Omae , Nozomu Arimoto
CPC分类号： H01J29/484 , H01J2229/4824
摘要： In a cathode-ray tube, a nonmetallic material such as ceramic or the like is used for an electrode 1a part of an electron gun. Consequently, the deterioration of the efficiency of modulation of electron beam trajectories by an eddy current generated at the metallic electrode part of the electron gun in the high-frequency magnetic fields and the heat generation at the electrode can be decreased. The generation of the eddy current by high-frequency magnetic fields by a convergence yoke or the like can be restrained by using a nonmetallic material for the electrode part of the electron gun. Consequently, the efficiency of modulation of electron beam trajectories is not deteriorated also in a high-frequency modulation zone and the heat generation at the electrode part can be also restrained. Less deterioration of efficiency of modulation of electron beam trajectories by the alternating magnetic fields occurs even in the high-frequency modulation zone, for example, more than 100kHz. Therefore, an excessive power is not required in a deflecting yoke, a convergence yoke, a velocity modulation coil or the like, even in a cathode-ray tube that modulates electron beam trajectories at high frequency in a high definition television or the like. As a result, the damage to a neck portion of a cathode-ray tube caused by heat generation at the electrode part also can be prevented.
摘要翻译： 在阴极射线管中，使用诸如陶瓷等的非金属材料用于电子枪的电极1a部分。 因此，能够降低在高频磁场中的电子枪的金属电极部分产生的涡电流和电极发热的电子束轨迹的调制效率的劣化。 可以通过使用用于电子枪的电极部分的非金属材料来抑制通过会聚轭等产生高频磁场的涡流。 因此，电子束轨迹的调制效率也不会在高频调制区域中劣化，并且还可以抑制电极部分的发热。 即使在高频调制区域（例如，大于100kHz），也可以通过交变磁场调制电子束轨迹的效率降低。 因此，即使在高分辨率电视机等中以高频率调制电子束轨迹的阴极射线管中，偏转轭，会聚轭，速度调制线圈等也不需要过多的功率。 结果，也可以防止由电极部分的发热引起的对阴极射线管的颈部的损伤。
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公开(公告)号：US06979943B2
公开(公告)日：2005-12-27
申请号：US10258266
申请日：2002-03-14
申请人： Naoki Yamauchi , Hideo Iguchi , Hideharu Omae , Yoshimi Kumei , Tetsuro Ozawa , Yoko Kannan
发明人： Naoki Yamauchi , Hideo Iguchi , Hideharu Omae , Yoshimi Kumei , Tetsuro Ozawa , Yoko Kannan
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，可以抑制由于从端面（11）反射而被屏幕不被屏幕遮挡的电子束，因此可以抑制易于发生在具有大的偏转角的阴极射线管中的晕差 2）减少。
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