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1.发明授权Display tube including a helical focusing lens with a non-rotationally symmetrical lens element 失效显示管包括具有非旋转对称透镜元件的螺旋聚焦透镜
公开(公告)号：US4961022A
公开(公告)日：1990-10-02
申请号：US342413
申请日：1989-04-24
申请人： Gerardus J. A. Hellings , Antonius W. F. Van Der Heijden , Erich E. Himmelbauer , Gerardus A. H. M. Vrijssen , Tjerk G. Spanjer , Willem M. Van Alphen , Jeroen Van Engelshoven
发明人： Gerardus J. A. Hellings , Antonius W. F. Van Der Heijden , Erich E. Himmelbauer , Gerardus A. H. M. Vrijssen , Tjerk G. Spanjer , Willem M. Van Alphen , Jeroen Van Engelshoven
CPC分类号： H01J29/628 , H01J29/503 , H01J2229/4827 , H01J2229/4865 , H01J2229/4872
摘要： A display tube comprising an electron gun having a beam-shaping part and a focusing structure. The focusing structure comprises an elongate hollow structure with a high-ohmic resistive layer provided on the inner and/or outer surface and comprises means for forming a non-rotationally symmetrical lens element in the area of the focusing structure. This may be a structure generating an electric multipole (for example, dipole or quadrupole) which may be incorporated particularly in the high-ohmic resistive layer.
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公开(公告)号：US4945283A
公开(公告)日：1990-07-31
申请号：US301001
申请日：1989-01-23
申请人： Antonius W. F. Van Der Heijden , Gerardus J. Hellings , Erich E. Himmelbauer , Tjerk G. Spanjer , Gerardus A. H. M. Vrijssen
发明人： Antonius W. F. Van Der Heijden , Gerardus J. Hellings , Erich E. Himmelbauer , Tjerk G. Spanjer , Gerardus A. H. M. Vrijssen
CPC分类号： H01J29/485 , H01J2229/4827
摘要： Cathode ray tube having an electron gun positioned in the neck portion, the gun comprising a beam-forming part and a focusing structure and the beam-forming part comprising at least a cathode and a metal electrode plate provided with a central aperture, and the focusing structure comprising a hollow tube of an electrically insulating material with inner and outer surfaces and with a layer of high-ohmic resistive material on at least one of the surfaces. The electrodes of the beam-forming part of the electron gun are secured via metal pins to rods for forming an assembly. The hollow tube is directly secured to the metal electrode plate for the purpose of correct alignment. The tube has a first and a second end face, the first end face in one embodiment having a metal plate with a coaxial aperture, and the said metal plate is fixedly connected to the metal electrode plate of the beam-shaping part of the electron gun in such a way that their apertures are coaxial.
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公开(公告)号：US5256934A
公开(公告)日：1993-10-26
申请号：US883819
申请日：1992-05-13
申请人： Jeroen Van Engelshoven , Ger-Wim J. Goorhuis , Gerardus J. A. Hellings , Gerardus A. H. M. Vrijssen , Tjerk G. Spanjer
发明人： Jeroen Van Engelshoven , Ger-Wim J. Goorhuis , Gerardus J. A. Hellings , Gerardus A. H. M. Vrijssen , Tjerk G. Spanjer
IPC分类号： H01J29/62
CPC分类号： H01J29/622 , H01J2229/4827
摘要： Picture display device comprising a display tube with an electron gun having a hollow tubular structure with an inner surface on which a resistance structure of a material having a high electrical resistance is provided, which structure constitutes a focusing lens. The resistance structure is connected to at least two axially spaced electric contacts for connecting an anode voltage and at least one electric contact located in between for applying a focusing voltage. An electrode means of low-ohmic material for controlling the focusing lens by means of a dynamic correction signal is arranged in the region of the connection for the focusing voltage. Upon energization, the low-ohmic electrode means particularly exercises a non-rotationally symmetrical effect on the electron beam.
摘要翻译： 图像显示装置包括具有电子枪的显示管，该电子枪具有中空的管状结构，内表面设置有具有高电阻的材料的电阻结构，该结构构成聚焦透镜。 电阻结构连接到至少两个轴向间隔开的电触点，用于连接阳极电压和位于其间的至少一个电触点，用于施加聚焦电压。 用于通过动态校正信号控制聚焦透镜的低欧姆材料的电极装置布置在用于聚焦电压的连接区域中。 在通电时，低欧姆电极特别地对电子束进行非旋转对称的作用。
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公开(公告)号：US4988929A
公开(公告)日：1991-01-29
申请号：US462151
申请日：1990-01-08
IPC分类号： H01J29/62
CPC分类号： H01J29/622 , H01J2229/4827
摘要： Picture display device comprising a display tube having an electron gun with an electrostatic focusing lens for generating a focusing lens field, which tube further comprises deflection means for generating a deflection field. The focusing lens field partly overlaps the deflection field. The focusing lens comprises a tubular structure having an inner surface on which a helical resistance structure of a material having a high electrical resistance is provided, which tubular structure has a coaxial input portion and a coaxial output portion, the output portion having dimensions which prevent the deflected electron beam from impinging upon the glass of the inner wall. Correction means may be provided for correcting errors caused by the advanced position of the focusing lens.
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公开(公告)号：US5202606A
公开(公告)日：1993-04-13
申请号：US827520
申请日：1992-01-27
CPC分类号： H01J29/94 , H01J29/624 , H01J2229/4827
摘要： The invention relates to a cathode-ray tube 1 having an electron gun 3 positioned in a neck portion 2. The electron gun 3 is provided with a focusing structure 10 which includes a hollow tube 12 of electrically insulating material. A layer 14 of a material having a high resistance is applied to the inner surface of the hollow tube. The resistance layer 14 is shielded from a getter arrangement 44 positioned in the cathode ray tube 1.
摘要翻译： 本发明涉及一种具有位于颈部2中的电子枪3的阴极射线管1.电子枪3设置有聚焦结构10，聚焦结构10包括电绝缘材料的中空管12。 将具有高电阻的材料层14施加到中空管的内表面。 电阻层14与位于阴极射线管1中的吸气装置44屏蔽。
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公开(公告)号：US4857797A
公开(公告)日：1989-08-15
申请号：US156373
申请日：1988-02-16
CPC分类号： B82Y10/00 , H01J29/488 , H01J29/90 , H01J2229/4827
摘要： The invention relates to a cathode ray tube having an envelope 1 comprising a screen 2 and an electron gun 3 which is situated inside the envelope 1 opposite to the screen and which has three electrodes 4, 5 and 6, which electrodes are provided coaxially on the inner wall of a glass tube 7 in adjoining places having diameters differing for each electrode. In order to obtain, for example, smaller dimensions and a better alignment of the electron gun and a higher resolution, a focusing lens associated with the electron gun 3 is a high-ohmic resistance layer 8 having a spiral shape 9.
摘要翻译： 本发明涉及一种具有外壳1的阴极射线管，该外壳1包括屏幕2和电子枪3，电子枪3位于与屏幕相对的外壳1内，并具有三个电极4,5和6，这些电极同轴地设置在 玻璃管7的内壁在相邻的位置具有不同于每个电极的直径。 为了获得例如电子枪的较小的尺寸和更好的对准和更高的分辨率，与电子枪3相关联的聚焦透镜是具有螺旋形状9的高欧姆电阻层8。
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公开(公告)号：US4827184A
公开(公告)日：1989-05-02
申请号：US145797
申请日：1988-01-19
IPC分类号： H01J37/14 , H01J29/62 , H01L21/027 , H01L21/30 , H01J29/46
CPC分类号： H01J29/624 , H01J2229/4827
摘要： An electron beam device such as a cathode ray tube in which spherical aberration is reduced by optimising the axial potential distribution in the focusing lens of the electron gun. In one embodiment of the invention the electron gun comprises a beam forming part and a segmented focusing lens (25). The focusing lens (25) comprises a preformed glass tube (22) having a high-ohmic resistive layer (23) on the interior wall thereof, the resistive layer (23) comprises helical segments (33 to 37) alternated with intermediate segments (42 to 47). A focusing voltage is applied to the intermediate section (42) closest to the beam forming part and a higher voltage is applied to the end segment (47). The lengths of the helical segments (33 to 37) increase in a direction from the point of application of the focusing voltage whereas the lengths of the intermediate segments (42 to 46) decrease. The lengths of the helical segments (33 37) are such as to produce the desired axial potential distribution.
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公开(公告)号：US5015925A
公开(公告)日：1991-05-14
申请号：US461888
申请日：1990-01-08
IPC分类号： H01J29/62
CPC分类号： H01J29/626 , H01J2229/4827
摘要： Picture display device comprising a display tube with an electron gun having a tubular structure with an outer surface and an inner surface on which a helical resistance structure is provided in a layer of a material having a high electrical resistance for constituting a focusing lens. In the layer is also formed a coaxial correction element for generating an electric multi-pole field. The outer surface is provided with electrodes of readily electrically conducting material arranged opposite the correction element for capacitively coupling a dynamic correction signal into the correction element.
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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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公开(公告)号：US4182973A
公开(公告)日：1980-01-08
申请号：US836528
申请日：1977-09-26
CPC分类号： H01J29/02
摘要： Disclosed is a bayonet catch for directly securing an electrode in a glass envelope which comprises projections extending inwardly from the envelope and radially extending portions on the electrode which are clamped between the projections upon rotation of the electrode. The material of the envelope and the electrode have substantially equal coefficients of expansion to minimize relative movement between the envelope and the electrode with changes in temperature.
摘要翻译： 公开了一种用于将电极直接固定在玻璃外壳中的卡口卡子，其包括从封套向内延伸的突起和在电极旋转时夹在突起之间的电极上的径向延伸部分。 封套和电极的材料具有基本上相等的膨胀系数，以使封套和电极之间的相对运动随温度变化最小化。
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