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公开(公告)号：EP0438139A3
公开(公告)日：1992-01-29
申请号：EP91100462.0
申请日：1991-01-16
发明人： Sugawara, Shigeru, c/o Intellectual Property Div. , Koshigoe, Shinpei, c/o Intellectual Property Div.
IPC分类号： H01J29/62
CPC分类号： H01J29/503 , H01J2229/4841 , H01J2229/4858 , H01J2229/4868 , H01J2229/4889 , H01J2229/4896
摘要： A color cathode ray tube apparatus is provided with an electron gun assembly which emits three electron beams and focuses and converges the electron beam onto a phosphor screen. In the gun assembly, the electron beams generated from cathodes (2) are accelerated and controlled by first and second grids (3, 4) and pass through third, fourth and fifth grids (5, 6, 7). The third and fourth grids (5, 6) have single rectangular apertures (10, 11) common to the three electron beams, respectively, which are faced to each other and have different heights and widths. Each of the fourth and fifth grids (6, 7) have individual apertures which allow the corresponding electron beams to pass therethrough, respectively. The third and fifth grids (5, 7) is maintained at fixed potentials and a potential of the fourth grid (6) is adjusted. Thus, individual focusing and convergence electron lenses (L120) are formed between the fourth and fifth grids (5, 6). A single and common asymmetrical electron lens (L110) is formed between the third and fourth grids (5, 6), when a potential difference between the third and fourth grids (5, 6) is produced. A misconvergence of three electron beams produced due to the adjustment of the individual electron lenses (L120) is corrected by the common asymmetrical electron lens (L110) in such a manner that the side electron beams are deflected in accordance with the potential difference.
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公开(公告)号：EP0440234A3
公开(公告)日：1992-01-15
申请号：EP91101302.7
申请日：1991-01-31
发明人： Kim, Kyungnam
CPC分类号： H01J29/503 , H01J29/488 , H01J2229/4841 , H01J2229/4872
摘要： There is disclosed an electron gun structure for color picture tubes comprising a prearranged electrode, a postarranged electrode, an extension flange perpendicularly formed along the periphery of the back end of said prearranged electrode, another extension flange perpendicularly formed along the periphery of the front end of said postarranged electrode, said both extension flanges being opposed to each other, and the electron beam passing apertures being disposed relatively inside said electrodes, wherein said prearranged electrode is supplied with a static voltage and said postarranged electrode with a dynamic focusing voltage which is varied according to a deflecting signal and a synchronizing signal, so that said prearranged electrode forms a convex focusing type of lens to have a focusing type of force which acts stronger vertically than horizontally, and said postarranged electrode forms a concave diverging lens to have a diverging force which acts stronger vertically than horizontally so as to expand the landing area of said electron beam vertically, thus said two lenses serving the complementary action to make the landing area of said electron beam circular throughout the screen of said color picture tube.
摘要翻译： 公开了一种用于彩色显像管的电子枪结构，其包括预先布置的电极，后置电极，沿着所述预先布置的电极的后端的周边垂直地形成的延伸凸缘，沿着所述预定电极的前端的周边垂直地形成的另一个延伸凸缘 所述后置电极，所述两个延伸凸缘彼此相对，并且电子束通过孔相对地设置在所述电极内，其中所述预先布置的电极被提供有静态电压，并且所述后置电极具有动态聚焦电压，所述动态聚焦电压根据 偏转信号和同步信号，使得所述预先布置的电极形成凸起的聚焦类型的透镜以具有垂直于水平方向更强的聚焦类型的力，并且所述后排列电极形成凹形发散透镜以具有发散力， 在垂直方向比水平更强 水平地扩展所述电子束的着色区域，因此所述两个透镜用作互补作用，以使所述电子束的着色区域遍及所述彩色显像管的整个屏幕。
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公开(公告)号：EP0440234A2
公开(公告)日：1991-08-07
申请号：EP91101302.7
申请日：1991-01-31
发明人： Kim, Kyungnam
CPC分类号： H01J29/503 , H01J29/488 , H01J2229/4841 , H01J2229/4872
摘要： There is disclosed an electron gun structure for color picture tubes comprising a prearranged electrode, a postarranged electrode, an extension flange perpendicularly formed along the periphery of the back end of said prearranged electrode, another extension flange perpendicularly formed along the periphery of the front end of said postarranged electrode, said both extension flanges being opposed to each other, and the electron beam passing apertures being disposed relatively inside said electrodes, wherein said prearranged electrode is supplied with a static voltage and said postarranged electrode with a dynamic focusing voltage which is varied according to a deflecting signal and a synchronizing signal, so that said prearranged electrode forms a convex focusing type of lens to have a focusing type of force which acts stronger vertically than horizontally, and said postarranged electrode forms a concave diverging lens to have a diverging force which acts stronger vertically than horizontally so as to expand the landing area of said electron beam vertically, thus said two lenses serving the complementary action to make the landing area of said electron beam circular throughout the screen of said color picture tube.
摘要翻译： 公开了一种用于彩色显像管的电子枪结构，其包括预先布置的电极，后置电极，沿着所述预先布置的电极的后端的周边垂直地形成的延伸凸缘，沿着所述预定电极的前端的周边垂直地形成的另一个延伸凸缘 所述后置电极，所述两个延伸凸缘彼此相对，并且电子束通过孔相对地设置在所述电极内，其中所述预先布置的电极被提供有静态电压，并且所述后置电极具有动态聚焦电压，所述动态聚焦电压根据 偏转信号和同步信号，使得所述预先布置的电极形成凸起的聚焦类型的透镜以具有垂直于水平方向更强的聚焦类型的力，并且所述后排列电极形成凹形发散透镜以具有发散力， 在垂直方向比水平更强 水平地扩展所述电子束的着色区域，因此所述两个透镜用作互补作用，以使所述电子束的着色区域遍及所述彩色显像管的整个屏幕。
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公开(公告)号：EP0265683B1
公开(公告)日：1990-11-07
申请号：EP87114156.0
申请日：1987-09-28
CPC分类号： H01J29/503 , H01J2229/4841 , H01J2229/4872
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公开(公告)号：EP0332469A3
公开(公告)日：1990-08-01
申请号：EP89302413.3
申请日：1989-03-10
发明人： Shimoma, Taketoshi c/o Patent Division , Koshigoe, Shinpei c/o Patent Division , Hasegawa, Takahiro c/o Patent Division
CPC分类号： H01J29/96 , H01J29/503 , H01J2229/4841 , H01J2229/4865
摘要： An electron gun for color-picture tube device comprises a final accelerating electrode (9) and a focusing electrode (8a, 8b) divided into plural electrode units in the axial direction of the tube. A first focusing electrode unit (8b) adjacent to the final accelerating electrode (9) is connected to a second focusing electrode unit (8a) adjacent to the first focusing electrode unit (8b) through a resistor (11). A focusing voltage being changed in synchronous with the deflection of an electron beam is applied to the first focusing electrode unit (8b). The resistor (11) is used for removing the a.c. components from the focusing voltage. Then, the removed focusing voltage is applied to the second focusing electrode (8a). For the electron beam deflected on the peripheral part of the screen, a quadrupole lens is formed. On the first focusing electrode unit side opposite to the second focusing electrode unit are formed first electron beam path holes (13) whose major axes extend horizontally. On the second focusing electrode unit side opposite to the first focusing electrode unit are formed second electron beam path holes (12) whose major axes extend vertically. As a result, the quadrupole lens serves to suppress a halo portion.
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公开(公告)号：EP0235975B1
公开(公告)日：1990-06-13
申请号：EP87301171.2
申请日：1987-02-11
CPC分类号： H01J29/503 , H01J2229/4841 , H01J2229/4872
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47.发明公开Color display system and tube having an electron gun with dual electrode modulation 失效Farbanzeigigesystem undRöhre，versehen mit einer a zwei Elektroden modulierten Elektronenkanone。
公开(公告)号：EP0366245A2
公开(公告)日：1990-05-02
申请号：EP89309148.8
申请日：1989-09-08
CPC分类号： H01J29/503 , H01J2229/4841 , H01J2229/4872 , H01J2229/4896
摘要： An improved color display system includes a cathode-ray tube (10) and a magnetic deflection yoke (30) positioned on the tube. The tube includes an envelope (11) having an inline electron gun (40) for generating and directing three inline beams (28) along initially coplanar paths toward a screen (22) on an interior surface portion of the envelope. The gun includes a plurality of spaced electrodes which comprise three lenses. The first lens (L1) includes a beam-forming region for providing substantially symmetrical beams to a second lens (L2). The second lens includes a first modulation electrode (50) for providing asymmetrically-shaped beams to a third, or main, lens (L3) At least one, but preferably two, dynamic voltage signals (126,130) are applied to the modulation electrode of the second lens. Another dynamic voltage signal (128) is applied to a second modulation electrode portion (54) of the third lens. The voltage signals are related to the deflection of the beams and improve the electron beam spot size at the periphery of the tube screen.
摘要翻译： 改进的彩色显示系统包括位于管上的阴极射线管（10）和磁偏转线圈（30）。 该管包括具有一体式电子枪（40）的外壳（11），用于沿着最初的共面路径沿着信封的内表面部分上的屏幕（22）产生和引导三个一字形束（28）。 枪包括多个间隔开的电极，其包括三个透镜。 第一透镜（L1）包括用于向第二透镜（L2）提供基本对称的光束的光束形成区域。 第二透镜包括用于向第三或主透镜（L3）提供非对称形状的光束的第一调制电极（50）。至少一个但优选两个动态电压信号（126,130）被施加到 第二个镜头。 另一个动态电压信号（128）被施加到第三透镜的第二调制电极部分（54）。 电压信号与光束的偏转有关，并提高了管屏周边的电子束光斑尺寸。
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公开(公告)号：EP0241218A3
公开(公告)日：1988-11-02
申请号：EP87302872
申请日：1987-04-02
发明人： Yamane, Hisakazu c/o Mitsubishi denki K.K. , Ishida, Ritsuo c/o Mitsubishi Denki K.K. , Nakanishi, Hisao c/o Mitsubishi Denki K.K. , Yanai, Keiji c/o Mitsubishi Denki K.K. , Kimura, Kenji c/o Mitsubishi Denki K.K. , Ishibata, Koji c/o Mitsubishi Denki K.K. , Ishii, Yoshinori c/o Mitsubishi Denki K.K. , Toshiyasu, Masayuki c/o Mitsubishi Denki K.K. , Okuda, Souitirou c/o Mitsubishi Denki K.K. , Ikegami, Kazunori c/o Mitsubishi Denki K.K.
CPC分类号： H01J29/503 , H01J2229/4841 , H01J2229/4862 , H01J2229/4872 , H01J2229/4875 , H01J2229/4879 , H01J2229/4896
摘要： A cathode ray tube apparatus comprises three cathodes (1) arranged in line with each other in a first direction for emission of respective electron beams (20) therefrom, a focusing electrode (4) having first to third apertures defined therein for the passage of the respective electron beams therethrough, and a quadrupole electrode structure including first to third quadrupole electrodes (17,18,19) one for each electron beam. Each of the quadrupole electrodes (17,18,19) comprises a pair of horizontal electrode pieces (17a,b;18a,b;19a,b) spaced a predetermined distance from each other in a second direction perpendicular to the first direction and positioned upwardly and downwardly, respectively, with respect to the associated electron beam, and a pair of vertical electrode pieces (17c,d;18c,d;19c,d) spaced a predetermined distance from each other in a direction aligned with the first direction and positioned leftwards and rightwards with respect to such associated electron beam. A power source circuit is included for applying a predetermined voltage to the quadrupole electrode structure.
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49.发明公开
公开(公告)号：EP0265683A1
公开(公告)日：1988-05-04
申请号：EP87114156.0
申请日：1987-09-28
CPC分类号： H01J29/503 , H01J2229/4841 , H01J2229/4872
摘要： A color display system (9) includes a cathode-ray tube (10) and self-converging yoke (30) that produces an astigmatic magnetic deflection field within the tube. The gun (26) includes beam-forming region electrodes (34,36,38,40), main focusing lens electrodes (44,46), and two electrodes (42,44) for forming a multipole lens between the beam-forming region and the main focusing lens in each of the electron beam paths. Each multipole lens is oriented to provide a correction to an associated electron beam to at least partially compensate for the effect of the astigmatic magnetic deflection field on that beam. A first multipole lens electrode (42) is located between the beam-forming region electrodes and the main focusing lens electrodes. A second multipole electrode (44) is connected to a main focusing lens electrode and located between the first multipole lens electrode and the main focusing lens, adjacent to the first multipole lens electrode.
摘要翻译： 彩色显示系统（9）包括在管内产生像散磁偏转场的阴极射线管（10）和自会聚磁轭（30）。 枪（26）包括波束形成区电极（34,36,38,40），主聚焦透镜电极（44,46）和用于在波束形成区域之间形成多极透镜的两个电极（42,44） 和每个电子束路径中的主聚焦透镜。 每个多极镜头被定向以提供对相关联的电子束的校正，以至少部分地补偿该光束上的像散磁偏转场的影响。 第一多极透镜电极（42）位于波束形成区电极和主聚焦透镜电极之间。 第二多极电极（44）连接到主聚焦透镜电极并位于第一多极透镜电极和主聚焦透镜之间，与第一多极透镜电极相邻。
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公开(公告)号：EP1361597A3
公开(公告)日：2007-10-24
申请号：EP03009981.6
申请日：2003-05-02
发明人： Sukeno, Masahiko , Ohta, Kazunori , Ueda, Yasuyuki
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.
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