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31.发明授权PICTURE DISPLAY DEVICE PROVIDED WITH AN ELECTRON GUN, AND ELECTRON GUN FOR USE IN SUCH A DEVICE 失效用电子枪，电子枪图像显示装置中使用此类装置中
公开(公告)号：EP0725974B1
公开(公告)日：1998-07-29
申请号：EP95927059.6
申请日：1995-08-17
CPC分类号： H01J29/96 , H01J29/503 , H01J29/566 , H01J2229/4841 , H01J2229/4872 , H01J2229/966
摘要： A picture display device comprises an evacuated envelope and is provided at a first side with an electroluminescent display screen and at an opposite side with an electron gun (6). Between the electron gun (6) and the display screen, the device comprises deflection means with which an electron beam generated by the electron gun (6) can be deflected during operation. The electron gun (6) has at least an electron beam-generating portion (20) and is provided with a main lens system (40) having a first electrode (41), a final electrode (45) and at least one intermediate electrode (42-44) across which a main lens voltage is gradually applied step-wise during operation so as to form an electron-optical main focusing lens. The gun is further provided with means for presenting a dynamic potential (Vd) to at least an electrode (41) of the main lens system (40), which is the first electrode viewed in the direction of propagation of the electron beam (7-9). For an increased dynamic focusing, a coupling capacitor (50) is arranged at least between said first electrode (41) and the subsequent electrode (42) of the main lens system (40).
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32.发明公开Color picture tube with reduced dynamic focus voltage 失效Farbbildröhremit verringerter dynamischer Fokussierspannung
公开(公告)号：EP0805473A3
公开(公告)日：1998-07-15
申请号：EP97111760
申请日：1994-10-31
申请人： HITACHI LTD
发明人： TOUJOU TSUTOMU , KATO SHINICHI , SHIRAI SHOUJI
CPC分类号： H01J29/503 , H01J2229/4841
摘要： In an in-line color picture tube, the length L of the focussing electrode (12) constituting the main lens of the electron gun is at least two times of the diameter D of the main lens and the focussing electrode (12) includes a first electrode (121), a second electrode (122), and a third electrode (123). The electron gun has a correction electron for forming a quadrupole lens in at least one of the opposing ends of the first electrode (121) and the second electrode (122) and the opposing ends of the second electrode (122) and the third electrode (123) and a voltage which varies in synchronization with the deflection current is applied to the fist electrode (121) and the third electrode (123), respectively.
摘要翻译： 在直列式彩色显象管中，构成电子枪主透镜的聚焦电极（12）的长度L至少是主透镜直径D的两倍，聚焦电极（12）包括第一 电极（121），第二电极（122）和第三电极（123）。 电子枪具有用于在第一电极（121）和第二电极（122）的相对端中的至少一个中以及第二电极（122）和第三电极（122）的相对端中形成四极透镜的校正电子。 123），并且分别向第一电极（121）和第三电极（123）施加与偏转电流同步变化的电压。
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公开(公告)号：EP0334197B1
公开(公告)日：1998-07-15
申请号：EP89104644.3
申请日：1989-03-15
CPC分类号： H01J29/96 , H01J29/503 , H01J2229/4841
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34.发明公开Color picture tube with reduced dynamic focus voltage 失效Farbbildröhremit verringerter dynamischer Fokussierspannung
公开(公告)号：EP0805473A2
公开(公告)日：1997-11-05
申请号：EP97111760.1
申请日：1994-10-31
申请人： HITACHI, LTD.
发明人： Toujou, Tsutomu , Kato, Shinichi , Shirai, Shouji
CPC分类号： H01J29/503 , H01J2229/4841
摘要： In an in-line color picture tube, the length L of the focussing electrode (12) constituting the main lens of the electron gun is at least two times of the diameter D of the main lens and the focussing electrode (12) includes a first electrode (121), a second electrode (122), and a third electrode (123). The electron gun has a correction electron for forming a quadrupole lens in at least one of the opposing ends of the first electrode (121) and the second electrode (122) and the opposing ends of the second electrode (122) and the third electrode (123) and a voltage which varies in synchronization with the deflection current is applied to the fist electrode (121) and the third electrode (123), respectively.
摘要翻译： 在直列彩色显像管中，构成电子枪的主透镜的聚焦电极（12）的长度L为主透镜的直径D的至少两倍，聚焦电极（12）包括第一 电极（121），第二电极（122）和第三电极（123）。 电子枪具有用于在第一电极（121）和第二电极（122）的至少一个相对端和第二电极（122）和第三电极（122）的相对端中的至少一个中形成四极透镜的校正电子 123），并且与偏转电流同步地变化的电压分别施加到第一电极（121）和第三电极（123）。
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公开(公告)号：EP0693768A3
公开(公告)日：1996-11-06
申请号：EP95111011.3
申请日：1995-07-13
申请人： HITACHI, LTD.
发明人： Toiyou, Tutomu , Shirai, Shoji , Kato, Shinichi
CPC分类号： H01J29/628 , H01J29/488 , H01J29/503 , H01J2229/4841 , H01J2229/5635 , H01J2229/568
摘要： A color cathode ray tube includes a final lens, a multipole lens and a lens for correction of curvature of the image field. The final lens focuses more horizontally and its strength weakens in accordance with an angle of beam deflection. The strength of the multipole lens for elongating a cross section of electron beams horizontally weakens in accordance with an angle of beam deflection. The lens for correction of curvature of the image field weakens in accordance with an angle of beam deflection.
摘要翻译： 彩色阴极射线管包括最终透镜，多极透镜和用于校正像场曲率的透镜。 最后一个镜头水平对焦，其强度随光束偏转角度而减弱。 根据光束偏转的角度，用于延长电子束横截面的多极透镜的强度水平减弱。 根据光束偏转的角度，用于像场曲率校正的透镜减弱。
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36.发明公开PICTURE DISPLAY DEVICE PROVIDED WITH AN ELECTRON GUN, AND ELECTRON GUN FOR USE IN SUCH A DEVICE 失效用电子枪，电子枪图像显示装置中使用此类装置中
公开(公告)号：EP0725974A1
公开(公告)日：1996-08-14
申请号：EP95927059.0
申请日：1995-08-17
IPC分类号： H01J29
CPC分类号： H01J29/96 , H01J29/503 , H01J29/566 , H01J2229/4841 , H01J2229/4872 , H01J2229/966
摘要： A picture display device comprises an evacuated envelope and is provided at a first side with an electroluminescent display screen and at an opposite side with an electron gun (6). Between the electron gun (6) and the display screen, the device comprises deflection means with which an electron beam generated by the electron gun (6) can be deflected during operation. The electron gun (6) has at least an electron beam-generating portion (20) and is provided with a main lens system (40) having a first electrode (41), a final electrode (45) and at least one intermediate electrode (42-44) across which a main lens voltage is gradually applied step-wise during operation so as to form an electron-optical main focusing lens. The gun is further provided with means for presenting a dynamic potential (Vd) to at least an electrode (41) of the main lens system (40), which is the first electrode viewed in the direction of propagation of the electron beam (7-9). For an increased dynamic focusing, a coupling capacitor (50) is arranged at least between said first electrode (41) and the subsequent electrode (42) of the main lens system (40).
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公开(公告)号：EP0655765A1
公开(公告)日：1995-05-31
申请号：EP94118718.9
申请日：1994-11-28
IPC分类号： H01J29/50
CPC分类号： H01J29/503 , H01J2229/4841
摘要： The present gun has a triple electrodes part (20), a prefocusing lens part (30) for preliminarily focusing and accelerating the electron beam from the triple electrodes part, and a main lens part (40) for finally focusing and accelerating the beam from the prefocusing lens part.
The prefocusing lens part (30) comprises a plurality of focusing lenses for forming at least one quadrapole lens, and two different focusing voltages (F1,F2) each of which being dynamically changed synchronized with the deflection signal, are selectively applied to each focusing electrodes. Thus, a uniform beam section can be obtained all over the screen.摘要翻译： 本枪具有三重电极部分（20），用于预先聚焦和加速来自三电极部分的电子束的预聚焦透镜部分（30）和用于最终聚焦和加速来自三极电极部分的光束的主透镜部分（40） 预聚焦透镜部分。 预聚焦透镜部分（30）包括用于形成至少一个四极透镜的多个聚焦透镜，并且与偏转信号同步地动态地改变的两个不同聚焦电压（F1，F2）被选择性地施加到每个聚焦电极 。 因此，可以在整个屏幕上获得均匀的光束部分。
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38.发明授权Color display system and tube having an electron gun with dual electrode modulation 失效彩色显示系统和管，设置有在两个电极电子枪调制。
公开(公告)号：EP0366245B1
公开(公告)日：1994-12-07
申请号：EP89309148.8
申请日：1989-09-08
CPC分类号： H01J29/503 , H01J2229/4841 , H01J2229/4872 , H01J2229/4896
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公开(公告)号：EP0621625A2
公开(公告)日：1994-10-26
申请号：EP94106133.5
申请日：1994-04-20
发明人： Sugawara, Shigeru, Intell.Property Div. , Kimiya, Junichi, Intell.Property Div. , Kamohara, Eiji, Intell.Property Div.
CPC分类号： H01J29/503 , H01J29/622 , H01J2229/4841 , H01J2229/4865 , H01J2229/4872
摘要： In a color cathode ray tube apparatus including an electron gun assembly (21) having a main electron lens section constituted by a plurality of electrodes for focusing three electron beams arranged in a line on a target (3) and a deflection unit (8) for deflecting the three electron beams, at least an electrode (G6) to which a voltage obtained by superposing a variable voltage changed in accordance with a deflection amount of the electron beams on a predetermined DC voltage and an electrode (G5) which substantially opposes the electrode (G6) and to which a voltage obtained by superposing a variable voltage induced through a capacitance between the opposing electrodes on a predetermined voltage applied through a resistor arranged in a tube is applied are arranged in a main electron lens section, and the main electron lens section is made into an electron lens for changing the focusing state of the electron beams in synchronism with deflection of the electron beams. Therefore, a high-performance cathode ray tube which can preferably correct distortion of a beam spot caused by a deflection error in the entire area of a screen and has a high resolution can be obtained.
摘要翻译： 在一个彩色阴极射线管装置中，包括一个电子枪组件（21）和一个偏转单元（8），该电子枪组件具有由多个电极构成的主电子透镜部分，用于聚焦在目标（3）上排成一行的三个电子束， 偏转三束电子束，至少一个电极（G6）和一个电极（G5），电极（G6）是一个电极（G5），该电极上叠加了一个根据电子束的偏转量而变化的可变电压，该电压基本上与电极相对 （G6），并且在主电子透镜部分中布置通过在通过布置在管中的电阻施加的预定电压上施加通过在相对电极之间的电容感应的可变电压而获得的电压而获得的电压，并且主电子透镜 截面被制成电子透镜，用于与电子束的偏转同步地改变电子束的聚焦状态。 因此，可以获得一种高性能的阴极射线管，其能够优选地校正由屏幕的整个区域中的偏转误差引起的光束点的失真并且具有高分辨率。
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公开(公告)号：EP0509590A1
公开(公告)日：1992-10-21
申请号：EP92200997.2
申请日：1992-04-08
IPC分类号： H01J29/50
CPC分类号： H01J29/503 , H01J2229/4841 , H01J2229/4872 , H01J2229/4875
摘要： A display device comprising a deflection unit and a cathode ray tube having an in-line electron gun. The electron gun comprises a main lens portion having means to generate a main lens field and a quadrupole field. During operation, the intensity of said fields is dynamically varied. The electron gun comprises a prefocusing lens portion having means of generating a prefocusing lens field and a further quadrupole field. During operation, the intensity of said fields is controlled so that a dynamic cylindrical lens is formed in the prefocusing lens portion. By virtue thereof, a improved picture reproduction can be obtained.
摘要翻译： 一种显示装置，包括具有直列电子枪的偏转单元和阴极射线管。 电子枪包括具有产生主透镜场和四极场的装置的主透镜部分。 在操作期间，所述场的强度是动态变化的。 电子枪包括具有产生预聚焦透镜场和另外的四极场的装置的预聚焦透镜部分。 在操作期间，控制所述场的强度，使得在预聚焦透镜部分中形成动态柱面透镜。 由此，可以获得改进的图像再现。
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