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公开(公告)号：US5574331A
公开(公告)日：1996-11-12
申请号：US375872
申请日：1995-01-20
申请人： Sung-Gi An , Hyun C. Kim , Sung-Ho Cho , Hee S. Lee , Won-Hyun Kim , Hee-Won Yun
发明人： Sung-Gi An , Hyun C. Kim , Sung-Ho Cho , Hee S. Lee , Won-Hyun Kim , Hee-Won Yun
摘要： An in-line electron gun for a color picture tube has an accelerating electrode portion separated into two or three electrodes in a triode, in which a voltage supplied to respective electrodes is varied and an asymmetrical hole is formed in at least one among the electrodes to form an additional asymmetric lens, thereby preventing degradation of a focus characteristic caused by an abrupt increase of a diverging angle of electron beam in a high current region, degradation in the vertical electron beam due to an influence of a magnetic field of a deflection yoke, change of focusing force induced by voltage variation of a first accelerating/focusing electrode, and degradation of the electron beam owing to collision/repulsion among electrons in the electron beam.
摘要翻译： 一种用于彩色显象管的直列式电子枪具有加热电极部分，分为三极管中的两个或三个电极，其中提供给各个电极的电压变化，并且在至少一个电极之间形成不对称的孔， 形成附加的非对称透镜，从而防止由高电流区域中的电子束的发散角突然增加引起的聚焦特性的劣化，由于偏转线圈的磁场的影响导致的垂直电子束的劣化， 由第一加速/聚焦电极的电压变化引起的聚焦力的变化以及由于电子束中的电子之间的碰撞/排斥引起的电子束的劣化。
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公开(公告)号：US5528103A
公开(公告)日：1996-06-18
申请号：US188855
申请日：1994-01-31
CPC分类号： H01J3/022 , H01J29/085 , H01J31/127
摘要： A gated field-emission structure contains a emitter electrode (46), an overlying electrically insulating layer (48, and one or more electron-emissive elements (52) situated in one or more apertures extending through the insulating layer. A patterned gate electrode (50) through which each electron-emissive element is exposed overlies the insulating layer. Focusing ridges (54) are situated on the insulating layer on opposite sides of the gate electrode. The focusing ridges, which normally extend to a considerably greater height than the gate electrode, cause emitted electrons to converge into a narrow band.
摘要翻译： 门控场致发射结构包含发射极电极（46），覆盖电绝缘层（48）和位于延伸穿过绝缘层的一个或多个孔隙中的一个或多个电子发射元件（52） 每个电子发射元件通过其暴露在绝缘层上方，聚焦脊（54）位于栅电极相对侧上的绝缘层上，该聚焦脊通常延伸到比栅极大得多的高度 电极，使发射的电子收敛成窄带。
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公开(公告)号：US5506468A
公开(公告)日：1996-04-09
申请号：US80846
申请日：1993-06-24
申请人： Nam J. Koh
发明人： Nam J. Koh
CPC分类号： H01J29/503 , H01J2229/4865 , H01J2229/4872
摘要： An electron gun for a color cathode-ray tube for providing a passage for a plurality of electron beams, each beam representing a color component for forming a color image. The electron gun of the present invention includes a pair of electrodes substantially symmetrical to one another with respect to the horizontal direction and coaxial with the tube in the axial direction. Each electrode has a common opening. Each common opening faces the other and is spaced from the other at a given distance in the axial direction. According to an embodiment of the present invention, each electrode includes first and second electrode member. The first electrode member inside the electrode is spaced at a given distance from the common opening of the electrode in the axial direction. The first electrode member includes a plurality of openings in cascade in the horizontal direction, and these openings partially overlap one another and communicate to one another collectively to form a singly aperture. Each opening corresponds to a respective one of the plurality of electron beams. The second electrode member inside the electrode is spaced from the first electrode member at a given distance in the axial direction and further away from the common opening of the electrode than the first electrode member.
摘要翻译： 具有轴向，水平和垂直方向的彩色阴极射线管的电子枪的方向基本上彼此垂直，包括用于产生多个电子束的电子束发生器，每个光束代表颜色成分中的一个颜色成分 形成彩色图像。 相对于水平方向相对于水平方向彼此对称并且与轴在轴向方向上同轴的水平彼此基本上对称的pairof电极单元提供了多个电子束的通道。 一对电极单元中的每一个具有彼此面对的并且在轴向方向上彼此间隔开第一距离的公共开口。 每个电极单元包括与公共开口沿轴向间隔第二距离的第一电极构件和电极单元内的第一电极构件，其与第一电极构件在轴向方向上隔开第三距离并且远离共同开口 的电极单元比第一电极构件沿轴向方向。 第一电极构件包括在水平方向上级联的多个开口，其中开口部分地以至少一个重叠区域从第一电极构件的前后连续地彼此重叠，并且共同影响以形成单个孔。 每个开口对应于多个电子束中的相应一个。
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公开(公告)号：US4368405B1
公开(公告)日：1995-10-24
申请号：US19101680
申请日：1980-09-26
CPC分类号： H01J29/503 , H01J29/624
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25.发明授权Electron gun having focusing electrode and anode with a plurality of straight line segments 失效具有聚焦电极和阳极的电子枪具有多个直线段
公开(公告)号：US5434471A
公开(公告)日：1995-07-18
申请号：US266663
申请日：1994-06-28
申请人： Bong K. Jeong
发明人： Bong K. Jeong
CPC分类号： H01J29/503 , H01J2229/4886
摘要： An electron gun for a color picture tube having heaters, cathodes, a control electrode, a screen electrode, a focusing electrode and a anode, the focusing electrode for forming a main lens and said anode further having elongated octagonally shaped apertures. The electron gun thus configured enables the convergence and resolution of the color picture tube to be improved.
摘要翻译： 一种用于彩色显象管的电子枪，具有加热器，阴极，控制电极，屏幕电极，聚焦电极和阳极，用于形成主透镜的聚焦电极和所述阳极还具有细长的八边形孔。 如此配置的电子枪能够提高彩色显像管的会聚和分辨率。
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公开(公告)号：US5315207A
公开(公告)日：1994-05-24
申请号：US505308
申请日：1990-04-04
CPC分类号： H01J1/308 , H01J29/485 , H01J3/027
摘要： A planar electron-optical lens is obtained on a semiconductor cathode surface by providing an extra electrode (16) around the gate electrode (14). Dependent on the applied voltage, this configuration operates, for example, as a positive lens which supplies parallel beams without dispersion, suitable for thin, flat display devices. A large positioning tolerance is obtained due to the inherent magnification of the beam diameter in the semiconductor device, while a grid can be dispensed with.
摘要翻译： 通过在栅电极（14）周围设置多余的电极（16），在半导体阴极表面上获得平面电子 - 光学透镜。 取决于所施加的电压，该配置例如作为提供平行光束而不分散的正透镜，适用于薄的平面显示装置。 由于半导体器件中的光束直径的固有放大，可以获得大的定位公差，而可以省略格栅。
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公开(公告)号：US5241237A
公开(公告)日：1993-08-31
申请号：US649845
申请日：1991-01-30
CPC分类号： H01J29/624 , H01J29/503 , H01J2229/4858 , H01J2229/4868 , H01J2229/4872 , H01J2229/4879 , H01J2229/4886 , H01J2229/4896
摘要： An electron gun in which at least two of a plurality of electrodes constituting the electron gun are endowed with structures for generating rotationally-asymmetric electric fields, in electron-beam apertures of the electrodes or around the electron-beam apertures, and a cathode-ray tube which comprises the electron gun can enhance focus characteristics and attain favorable resolutions over the whole area of a screen and in all the current ranges of electron beams, and they do not give rise to moire in the small current range of the electron beams, without supplying a dynamic focus voltage.
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公开(公告)号：US4961023A
公开(公告)日：1990-10-02
申请号：US408985
申请日：1989-09-18
CPC分类号： H01J29/622 , H01J29/82 , H01J2229/4827
摘要： Cathode ray tube having an electron gun which comprises a beam-shaping part and a focusing structure, which structure comprises a hollow tube with a helical electrically conducting glass-enamel layer on the inner surface. Together with the hollow tube, the components of the beam-shaping part are secured to axial mounting rods via metal supporting elements. The tube has a first and a second end face each of which is fixedly connected in one embodiment to a metal plate having a coaxial opening provided with a flange, which flange projects into the tube and is fused in an electrically conducting manner to the electrically conducting glass-enamel layer of the focusing structure.
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29.发明授权
公开(公告)号：US4853587A
公开(公告)日：1989-08-01
申请号：US158524
申请日：1988-02-22
CPC分类号： H01J31/124 , H01J29/62
摘要： The display tube includes an electron gun (29) which directs a low energy electron beam (30) generally parallel to a flat faceplate (14) carrying a phosphor screen (16). The beam is deflected in a plane parallel to the faceplate by deflection electrodes (38) for line scanning purposes before being reversed in direction by a reversing lens (40) and then scanned framewise over the input side of an electron multiplier (44) by further deflection electrodes (42). The low energy beam in the scanning section of the tube is susceptible to the influence of ambient magnetic fields. The ensure that the beam correctly enters the reversing lens (40) in its acceptance window regardless of such fields an electron-optic lens system (50) defining a series of alternate high and low voltage regions and constituting in effect a series of relay lenses is provided between the gun and the reversing lens which periodically re-focusses the beam and constrains the beam substantially along a predeterming path with respect to the reversing lens.
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30.发明授权
公开(公告)号：US4737682A
公开(公告)日：1988-04-12
申请号：US75784
申请日：1987-07-20
申请人： Roger C. Alig , David A. New
发明人： Roger C. Alig , David A. New
CPC分类号： H01J29/503 , H01J2229/4872 , H01J2229/4896
摘要： The present invention provides an improvement in color picture tubes. Such tubes include an electron gun for generating and directing three inline electron beams, a center beam and two side beams, along initially coplanar paths toward a screen of the tube. The gun includes a plurality of spaced electrodes which form a main focus lens for focusing the electron beams. The improvement comprises the plurality of spaced electrodes which form a main focus lens including four electrodes that form an einzel lens in the path of each electron beam. A first einzel lens electrode includes a first portion having three inline apertures that are set back from a second portion having a single large aperture through which all three electron beams pass. A second einzel lens electrode includes a first portion having three inline apertures that are set back from a second portion having a single large aperture through which all three electron beams pass. The second portion of the first einzel lens electrode faces the second portion of the second einzel lens electrode. A third einzel lens electrode includes a first portion having three inline apertures that are set back from a second portion having a single large aperture through which all three electron beams pass. A fourth einzel lens electrode includes a first portion having three inline apertures set back from a second portion having a single large aperture through which all three electron beams pass. The second portion of the third einzel lens electrode faces the second portion of the fourth einzel lens electrode. The first portion of the second einzel lens electrode and the first portion of the third einzel lens electrode face each other and include means for forming a quadrupole lens in the path of each electron beam therebetween.
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