-
公开(公告)号：EP1037251A4
公开(公告)日：2006-08-02
申请号：EP99929757
申请日：1999-07-08
申请人： TOSHIBA KK
发明人： AWANO TAKASHI , KIMIYA JUNICHI
CPC分类号： H01J29/503 , H01J2229/4841
摘要： A cathode ray tube has an electron gun that comprises a main electron lens composed of at least four electrodes including first, second, third and fourth grids (5, 6, 7, 8) arranged in that order. A first voltage at a moderate level is applied to the first grid (5), and an anode voltage is applied to the fourth grid (8). The second grid (6) and the third grid (7) adjacent to each other are connected through a resistor (100), and they are energized at second and third voltages, respectively, which are substantially equal to each other and corresponding to an intermediate potential between the first voltage and the anode voltage. The grids are configured and arranged so that the second capacitance between the second and third grids (6, 7) may become smaller than the first capacitance between the first and second grids (5, 6) and the third capacitance between the third and fourth grids (7, 8). As a result, the cathode ray tube keeps the electron beam shape from flattening due to the difference in lens magnification between the horizontal and vertical directions in the peripheries of the screen, and provides a desirable image characteristic in the whole screen area.
摘要翻译： 阴极射线管具有电子枪，该电子枪包括由至少四个电极构成的主电子透镜，该电极包括依次排列的第一，第二，第三和第四栅格（5,6,7,8）。 将中等程度的第一电压施加到第一栅极（5），并且将阳极电压施加到第四栅极（8）。 彼此相邻的第二栅极（6）和第三栅极（7）通过电阻器（100）连接，并且它们分别在第二电压和第三电压处被激励，所述第二电压和第三电压基本彼此相等并且对应于中间电极 第一电压和阳极电压之间的电势。 栅极被配置和布置为使得第二和第三栅极（6,7）之间的第二电容可以变得小于第一和第二栅极（5,6）之间的第一电容以及第三和第四栅极 （7,8）。 结果，由于屏幕周边的水平和垂直方向之间的透镜放大倍数的差异，阴极射线管保持电子束形状不变，并在整个屏幕区域提供所需的图像特性。
-
公开(公告)号：EP0959489B1
公开(公告)日：2005-06-08
申请号：EP98901047.5
申请日：1998-01-28
发明人： UEDA, Yasuyuki , ITO, Takashi
CPC分类号： H01J29/503 , H01J2229/4841
摘要： A color picture tube provided with three cathodes (1a, 1b, 1c) horizontally arranged in inline, a first focusing electrode (4) to which a focus voltage (V f o c 1) is applied, a second focusing electrode (5) to which a dynamic voltage (V d y n) changed according to the deflection angle of an electron beam is applied, a final acceleration electrode (7) to which an anode voltage (Va) is applied and an intermediate auxiliary electrode (6) disposed between the second focusing electrode (5) and the final acceleration electrode (7). A voltage between the voltage of the second focusing electrode (5) and the anode voltage is applied to the intermediate auxiliary electrode (6). An axially unsymmetrical electrostatic lens for focusing an electron beam in the horizontal direction and diverging it in the vertical direction is formed between the first and the second focusing electrodes (4, 5), and the power of the axially unsymmetrical electrostatic lens is changed according to the deflection angle of the electron beam.
摘要翻译： 一个彩色显象管，其上设有三个水平排列成直线的阴极（1a，1b，1c），一个第一聚焦电极（4），一个聚焦电压（V foc 1）被施加到该第一聚焦电极上，一个第二聚焦电极（5） 施加根据电子束的偏转角改变的动态电压（V dyn），施加阳极电压（Va）的最终加速电极（7）和设置在第二聚焦电极（6）之间的中间辅助电极（6） （5）和最终加速电极（7）。 第二聚焦电极（5）的电压和阳极电压之间的电压被施加到中间辅助电极（6）。 在第一和第二聚焦电极（4,5）之间形成轴向不对称的静电透镜，用于使电子束在水平方向上聚焦并在垂直方向上发散，并且轴向不对称静电透镜的功率根据 电子束的偏转角度。
-
公开(公告)号：EP1361597A2
公开(公告)日：2003-11-12
申请号：EP03009981.6
申请日：2003-05-02
发明人： Sukeno, Masahiko , Ohta, Kazunori , Ueda, Yasuyuki
IPC分类号： H01J29/50
CPC分类号： H01J29/488 , H01J29/503 , H01J2229/4841
摘要： The present invention provides a high-resolution color picture tube device with a decreased beam spot diameter. The color picture tube device has an electron gun (23) including cathodes (1), a control electrode (2), an accelerating electrode (3), a G3 electrode (4), a first focusing electrode (5), a second focusing electrode (6), and a final accelerating electrode (7) that are arranged in this order. A voltage applied to the G3 electrode (4) is obtained by dividing with a resistor (10) a voltage applied to the final accelerating electrode (7), and when an electron beam is a non-deflection state, a relationship represented as Va > Vg3 > Vfoc2 is satisfied where Va, Vg3, and Vfoc2 denote voltages respectively applied to the final accelerating electrode (7), the G3 electrode (4) and the second focusing electrode (6). Thereby, the G3 electrode (4) is applied with a high voltage independently for forming a prefocus lens.
摘要翻译： 本发明提供一种具有减小的光束点直径的高分辨率彩色显像管装置。 彩色显像管装置具有包括阴极（1），控制电极（2），加速电极（3），G3电极（4），第一聚焦电极（5），第二聚焦 电极（6）和最终加速电极（7）。 施加到G3电极（4）的电压通过用电阻（10）分压施加到最终加速电极（7）的电压而获得，并且当电子束为非偏转状态时，表示为Va> Vg3> Vfoc2，其中Va，Vg3和Vfoc2表示分别施加到最终加速电极（7），G3电极（4）和第二聚焦电极（6）的电压。 由此，G3电极（4）独立地被施加高电压以形成预聚焦透镜。
-
公开(公告)号：EP0986088B1
公开(公告)日：2003-10-08
申请号：EP99125310.5
申请日：1995-07-13
申请人： Hitachi, Ltd.
发明人： Tojyou, Tutomu , Shirai, Shoji , Kato, Shinichi
IPC分类号： H01J29/50
CPC分类号： H01J29/628 , H01J29/488 , H01J29/503 , H01J2229/4841 , H01J2229/5635 , H01J2229/568
-
公开(公告)号：EP1075013A4
公开(公告)日：2003-02-05
申请号：EP00900922
申请日：2000-01-25
申请人： TOSHIBA KK
发明人： UENO HIROFUMI , SATOU KAZUNORI , TAKEKAWA TSUTOMU
CPC分类号： H01J29/503 , H01J29/488 , H01J2229/4837 , H01J2229/4841 , H01J2229/56
摘要： An electron gun structure (22) comprises at least one additional electrode (Gs) arranged along an equipotential surface formed between a focusing electrode (G3) and an anode electrode (G4), which form a main lens. For no deflection, a predetermined voltage applied to the additional electrode (Gs) corresponds to the potential of the equipotential surface in which the additional electrode (Gs) is arranged. For deflection, the convergence in vertical directions (Y) is different from that in horizontal directions (X) as the value of (Vs-Vf) / (Eb-Vf) varies with the increase in deflection of the electron beam, where (Vf) is the voltage applied to the focusing electrode (G3), Eb is the voltage applied to the anode electrode (G4), and Vs is the voltage applied to the additional electrode (Gs).
摘要翻译： 电子枪结构（22）包括至少一个附加电极（Gs），该附加电极沿着形成在形成主透镜的聚焦电极（G3）和阳极电极（G4）之间的等电位表面布置。 为了不偏转，施加到附加电极（Gs）的预定电压对应于其中布置附加电极（Gs）的等电位表面的电位。 对于偏转，当（Vs-Vf）/（Eb-Vf）的值随着电子束偏转的增加而变化时，垂直方向（Y）的会聚不同于水平方向（X）的会聚，其中（Vf ）是施加到聚焦电极（G3）的电压，Eb是施加到阳极电极（G4）的电压，Vs是施加到附加电极（Gs）的电压。
-
公开(公告)号：EP0810625B1
公开(公告)日：2002-07-24
申请号：EP97108544.4
申请日：1997-05-27
CPC分类号： H01J29/96 , H01J29/484 , H01J2229/4841 , H01J2229/4865 , H01J2229/966
-
公开(公告)号：EP0783764B1
公开(公告)日：2002-01-30
申请号：EP96916270.0
申请日：1996-06-21
CPC分类号： H01J29/503 , H01J2229/4841
摘要： A display device with a DAF-gun (Dynamic Astigmatism and Focusing) in which the first focusing electrode (G3a) has at the side facing the pre-focusing part of the electron gun three elongated apertures (36, 37, 38). Hereby in operation in the vicinity of the elongated apertures an electron-optical field is generated between the pre-focusing part of the electron gun and the elongated apertures for reduction of the vertical dimension (vertical meaning transverse to the plane of the electron beams) of the beam size of the electron beams in the main lens. This reduction of the electron beam size results in an increase of the vertical dimension of the beam spot on the screen. This reduces Moiré effects.
-
8.发明公开Wide-angle deflection color cathode ray tube with a dynamic focus voltage 审中-公开Farbkathodenstrahröhremit Weitwinkelablenkung und dynamischen Fokussierspannung
公开(公告)号：EP0942452A1
公开(公告)日：1999-09-15
申请号：EP99103936.3
申请日：1999-03-08
申请人： Hitachi, Ltd.
发明人： Nakamura, Tomoki , Shirai, Shoji , Yatsu, Yasuharu
CPC分类号： H01J29/503 , H01J2229/4841
摘要： A color cathode ray tube includes a phosphor screen an in-line type electron having an electron beam generating section for projecting three electron beams arranged in parallel with each other in a horizontal plane toward the phosphor screen, a focus electrode, and an anode adjacent to the focus electrode an forming a main lens in cooperation with the focus electrode for focusing the electron beams on the phosphor screen. The focus electrode includes at least a first focus sub-electrode and a second focus sub-electrode on the order named from the cathode, the first focus sub-electrode and the second focus sub-electrode forming an electrostatic quadrupole lens therebetween. An axial distance Lgf (mm) from an end of the first focus sub-electrode on a cathode side thereof to an end of the second focus sub-electrode on an anode side thereof, an axial distance Ls (mm) from the end of the second focus sub-electrode to the phosphor screen, and a useful diagonal dimension D (mm) of the phosphor screen satisfies a following relationship: 0.06 X Ls (mm) ≤ Lgf ≤ 26 (mm), and 1.50 ≤ D/Ls ≤ 1.70.
摘要翻译： 彩色阴极射线管包括具有电子束产生部分的在线型电子的荧光屏，用于将水平面上平行布置的三束电子束投射到荧光屏，聚焦电极和与之相邻的阳极 聚焦电极与用于将电子束聚焦在荧光屏上的聚焦电极协作形成主透镜。 聚焦电极至少包括从阴极命名的顺序的第一聚焦子电极和第二聚焦子电极，第一聚焦子电极和第二聚焦子电极在其间形成静电四极透镜。 从阴极侧的第一聚焦副电极的端部到阳极侧的第二聚焦副电极的端部的轴向距离Lgf（mm），从其端部的轴向距离Ls（mm） 荧光屏的有效对角尺寸D（mm）满足以下关系：0.06×Ls（mm）≤Lgf≤26（mm），1.50≤D/Ls≤1.70 。
-
公开(公告)号：EP0769203B1
公开(公告)日：1999-08-18
申请号：EP96906887.3
申请日：1996-04-10
发明人： VAN DER POEL, Willibrordus, Adrianus, Johannes, A. , VAN DE HEIJDEN, Antonius, Wilhelmus, Franciscus
CPC分类号： H01J29/503 , H01J2229/4841 , H01J2229/4862 , H01J2229/4865
-
公开(公告)号：EP0856869A1
公开(公告)日：1998-08-05
申请号：EP98101405.3
申请日：1998-01-27
CPC分类号： H01J29/628 , H01J2229/4841 , H01J2229/568
摘要： An electron gun (17) comprises a supplementary grid (SG) applied with a voltage which dynamically changes in synchronization with a magnetic field generated by a deflection yoke, between a second grid (G2) and a third grid (G3). Further, by the second grid (G2), the supplementary grid (SG), and the third grid (G3), an electron is constructed which has an astigmatic aberration in which a focusing force in the horizontal direction is stronger than a focusing force in the vertical direction. The intensity of the astigmatic aberration of the electron lens is dynamically changed by a voltage applied to the supplementary grid.
摘要翻译： 一个电子枪（17）包括一个辅助栅极（SG），在第二栅极（G2）和第三栅极（G3）之间施加一个与偏转线圈产生的磁场同步动态变化的电压。 此外，通过第二栅格（G2），辅助栅格（SG）和第三栅格（G3），构造具有像散的像差，其中水平方向上的聚焦力比聚焦力 垂直方向。 电子透镜的像散像差的强度通过施加到辅助栅极的电压而动态地改变。
-
-
-
-
-
-
-
-
-
搜索结果
140 条记录 (耗时 0.016 秒)
