公开(公告)号：EP1583132A1

公开(公告)日：2005-10-05

申请号：EP05102213.5

申请日：2005-03-21

申请人： Thomson Licensing

发明人： Ricaud, Jean-Luc ,  Galmiche, Christian ,  Arnaud, Philippe,

IPC分类号： H01J29/48

CPC分类号： H01J29/484

摘要： The invention relates to an electron gun for a cathode-ray tube, comprising at least a first electrode (G1) and a second electrode (G2) for shaping and focusing the electron beam emitted by a cathode (K).
These electrodes (G1, G2) are made of a non-oxidizing alloy whose coefficient of expansion between 20°C and 300°C lies between 4 10 -6 /°C and 13 10 -6 /°C.
Application: cathode-ray tubes.

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

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Suzuki, Fumihito ,  Hasegawa, Takahiro ,  Sugawara, Shigeru ,  Kimiya, Junichi

IPC分类号： H01J29/50 ,  H01J29/96

CPC分类号： H01J29/96 ,  H01J29/484 ,  H01J2229/4841 ,  H01J2229/4865 ,  H01J2229/966

公开(公告)号：EP0425206A3

公开(公告)日：1991-11-21

申请号：EP90311494.0

申请日：1990-10-19

申请人： THOMSON CONSUMER ELECTRONICS, INC.

发明人： Maninger, Loren Lee ,  Marks, Bruce George

IPC分类号： H01J9/14 ,  H01J29/48

CPC分类号： H01J29/484 ,  H01J29/503

摘要： An improved method of making a color picture tube electron gun (26) includes the selection and assembly of a plurality of cathodes (34) and a plurality of electrodes (36,38,40,42,44,46) longitudinally spaced from the cathodes. The improvement comprises at least three additional steps. First, the amount and direction of electron beam misconvergence at the tube screen, as caused by the thermal expansion of each individual electrode during electron gun warmup, is determined. A first group of electrodes (38,42,44) will cause misconvergence in a first direction, and a second group of electrodes (36,40,44,46) will cause misconvergence in a second direction. Second, the individual contributions of the electrodes to misconvergence during tube warmup are summed. The net effect of thermal expansion of the entire electron gun is a misconvergence in the first direction. Third, at least one of the electrodes (38,42) in the first group of electrodes is formed from a material having a lower coefficient of thermal expansion than the coefficient of thermal expansion used in the first step of determining misconvergence caused by the thermal expansion of each individual electrode.

公开(公告)号：EP0284002B1

公开(公告)日：1991-11-13

申请号：EP88104497.8

申请日：1988-03-21

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Shimaohgi, Toshio c/o Patent Division ,  Mori, Hideo c/o Patent Division ,  Okada, Tadanori c/o Patent Division

IPC分类号： H01J29/50

CPC分类号： H01J29/503 ,  H01J29/484 ,  H01J2229/0092

公开(公告)号：EP0114714A3

公开(公告)日：1984-08-22

申请号：EP84200065

申请日：1984-01-20

申请人： N.V. Philips' Gloeilampenfabrieken

发明人： Rao, Nidamboor Vasanth

IPC分类号： H01J29/48 ,  H01J31/38

CPC分类号： H01J29/484 ,  H01J29/488 ,  H01J31/38

摘要： Disclosed is an electron gun comprising a cathode, a first apertured anode spaced from said cathode and operated at a potential of between 5 and 30 volts positive with respect to the cathode. The gun further comprises a second apertured anode spaced from the first anode and operating at a potential of between 100 and 400 volts positive with respect to the cathode to produce a lens field in the region between the anodes which focusses the electrons emitted from the cathode at a crossover therebetween. The cross-section of the beam produced by the gun is determined by the size of the aperture in the second anode and the beam current may be varied by changing the voltage on the first anode to thereby move the crossover closer to or further away from the second anode so that a larger or smaller portion, respectively, of the electrons in the beam passes through the aperture. Alternatively, a beam-limiting element, separate from the second anode, may be used.

公开(公告)号：EP0114714A2

公开(公告)日：1984-08-01

申请号：EP84200065.5

申请日：1984-01-20

申请人： Philips Electronics N.V.

发明人： Rao, Nidamboor Vasanth

IPC分类号： H01J29/48 ,  H01J31/38

CPC分类号： H01J29/484 ,  H01J29/488 ,  H01J31/38

摘要： Disclosed is an electron gun comprising a cathode, a first apertured anode spaced from said cathode and operated at a potential of between 5 and 30 volts positive with respect to the cathode. The gun further comprises a second apertured anode spaced from the first anode and operating at a potential of between 100 and 400 volts positive with respect to the cathode to produce a lens field in the region between the anodes which focusses the electrons emitted from the cathode at a crossover therebetween. The cross-section of the beam produced by the gun is determined by the size of the aperture in the second anode and the beam current may be varied by changing the voltage on the first anode to thereby move the crossover closer to or further away from the second anode so that a larger or smaller portion, respectively, of the electrons in the beam passes through the aperture.
Alternatively, a beam-limiting element, separate from the second anode, may be used.

摘要翻译： 公开了一种电子枪，其包括阴极，与所述阴极间隔开的第一有孔阳极，并在相对于阴极正电压为5至30伏之间的电位下工作。 枪还包括与第一阳极间隔开的第二有孔阳极，并在相对于阴极正电压为100至400伏之间的电位下工作，以在阳极之间的区域产生透镜场，该阳极聚焦从阴极发射的电子 之间的交叉。 由枪产生的光束的横截面由第二阳极中的孔径的尺寸确定，并且可以通过改变第一阳极上的电压来改变束电流，从而使交叉点更靠近或远离 第二阳极，使得光束中的电子分别更大或更小的部分通过孔。 或者，可以使用与第二阳极分离的束限制元件。

公开(公告)号：EP0905741A1

公开(公告)日：1999-03-31

申请号：EP98307685.2

申请日：1998-09-22

申请人： SAMSUNG DISPLAY DEVICES CO., LTD.

发明人： Park, Duk-Sung ,  Kim, Sang-Kyun

IPC分类号： H01J29/82 ,  H01J29/48 ,  H01J29/06

CPC分类号： H01J29/484 ,  H01J29/06

摘要： A cathode ray tube includes a bulb (50) having a screen (52), a conductive layer (53) coated on the inner surface of the bulb, an electron gun (60) mounted in the neck portion (54) and having a final accelerating electrode (61) electrically connected to the conductive layer. Leakage current shielding means (81-83) are installed in the neck portion (54), for shielding leakage current flowing along the inner surface of the neck portion from the conductive layer (53).

摘要翻译： 阴极射线管包括具有屏幕（52）的灯泡（50），涂在灯泡内表面上的导电层（53），安装在颈部（54）中的电子枪（60） 加速电极（61）电连接到导电层。 漏电流屏蔽装置（81-83）安装在颈部（54）中，用于屏蔽从导电层（53）沿颈部内表面流动的漏电流。

公开(公告)号：EP0810625A2

公开(公告)日：1997-12-03

申请号：EP97108544.4

申请日：1997-05-27

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Suzuki, Fumihito ,  Hasegawa, Takahiro ,  Sugawara, Shigeru ,  Kimiya, Junichi

IPC分类号： H01J29/50

CPC分类号： H01J29/96 ,  H01J29/484 ,  H01J2229/4841 ,  H01J2229/4865 ,  H01J2229/966

摘要： The electron gun assembly for cathode ray tube, has the structure in which the first, second and third grids (G3, G5 and G6) are arranged in the traveling direction of an electron beam (6R 6G, 6B) emitted from cathodes (K), and so is the fourth grid (G7) to which a anode voltage (Eb) is applied, a suppressing ring (25) is provided to be adjacent to the second and third grids (G5 and G6), a dynamic focus voltage (Vd) which is varied in synchronism with the deflection of the electron beam (6R 6G, 6B) is applied to the first and third grids (G3 and G6), and the first and second grids (G3 and G5) are connected to each other by means of the resistor (24) provided adjacent thereto.

摘要翻译： 用于阴极射线管的电子枪组件具有其中从阴极（K）发射的电子束（6R 6G，6B）的行进方向上布置第一，第二和第三栅极（G3，G5和G6）的结构， ，施加阳极电压（Eb）的第四栅极（G7），与第二栅极（G5和G6）相邻设置的抑制环（25），动态聚焦电压（Vd ）与电子束（6R 6G，6B）的偏转同步地变化，被施加到第一和第三栅极（G3和G6），并且第一和第二栅极（G3和G5）通过 与其相邻设置的电阻器（24）的装置。

公开(公告)号：EP0517146A3

公开(公告)日：1994-06-29

申请号：EP92109239.1

申请日：1992-06-02

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

发明人： Hashiguchi, Jumpei ,  Nonomura, Kinzo ,  Murai, Ryuichi ,  Kitao, Satoshi

IPC分类号： H01J31/12 ,  H01J29/50

CPC分类号： H01J29/484 ,  H01J31/126 ,  H01J2329/8625

摘要： Further automatic control systems (11 and 31, look at Fig. 3 and Fig. 6) are described to keep constant potential differences between the cathode (1) and the conductive member (3) or the cathode (1) and a second conductive member (30, look at Fig. 6), respectively. These automatic control systems (11 and 31) maintain constant brightnes. The system (31, look at Fig. 6) detects external noises. In an electron source drive device, a cathode support member (6) arranged in contact with a cathode (1) is constructed by a conductive member (3) and an insulation member (2) interposed between the conductive member (3) and a contacting portion of the cathode, and the insulation member (2) is made of a material having a resistivity and a specific dielectric constant such that the electric discharge time constant τ of electrons on the surface of the insulation member depending on the insulation resistance and the electrostatic capacity between the surface of the insulation member and the conductive member is set in a visually permissible range of not too much in excess of one cycle of emission T f of the cyclical electron from the cathode without bringing forth intermittent electron emission.

摘要翻译： 在电子源驱动装置中，与阴极接触地配置的阴极支撑构件由导电构件和介于导电构件和阴极的接触部分之间的绝缘构件构成，绝缘构件由具有 电阻率和比介电常数，使得绝缘构件表面上的电子的放电时间常数取决于绝缘电阻和绝缘构件的表面与导电构件之间的静电容量设定在视觉上允许的范围内 不超过来自阴极的周期性电子的一个周期的发射，而不产生间歇的电子发射。

公开(公告)号：EP0425205A3

公开(公告)日：1991-11-21

申请号：EP90311493.2

申请日：1990-10-19

申请人： THOMSON CONSUMER ELECTRONICS, INC.

发明人： Maniger, Loren Lee ,  Marks, Bruce George

IPC分类号： H01J29/48 ,  H01J29/00

CPC分类号： H01J29/484

摘要： In a color picture tube including a screen and an inline gun for generating and directing three inline electron beams along separate paths toward the screen, the gun includes a plurality of cathodes (34) and at least six electrodes (36,38,40,42,44,46) longitudinally spaced from the cathodes. The first (36), second (38) and fourth (42) electrodes from the cathodes are of materials having lower coefficients of thermal expansion than the coefficients of thermal expansion of the materials of the other electrodes. As a result the time to settle to steady-state static convergence during warm-up of the tube is reduced.