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公开(公告)号：US5198960A
公开(公告)日：1993-03-30
申请号：US311862
申请日：1989-02-17
CPC分类号： H01J29/003 , H04N9/29 , H01J2229/0053
摘要： A degaussing current whose frequency is L Hz is supplied to a degaussing apparatus, and a constant amplitude vertical deflection current whose frequency is M Hz is supplied to a deflection yoke. The degaussing current is an A.C. current, and its frequency L Hz is determined such that the value of M/L is not an integer.
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公开(公告)号：US5177399A
公开(公告)日：1993-01-05
申请号：US774157
申请日：1991-10-15
CPC分类号： H01J29/76 , H01J29/566
摘要： Magnets for applying a pincushion type magnetic field to three electron beams emitted from an electron gun assembly is arranged between the deflection device and the lens unit of the electron gun assembly. The pincushion type stationary magnetic field produced by the magnets correct deflection aberrations of the electron beams due to the magnetic field of the deflection device and improves the focusing characteristics on the periphery of a screen.
摘要翻译： 用于对从电子枪组件发射的三个电子束施加枕形磁场的磁体设置在偏转装置和电子枪组件的透镜单元之间。 由磁体产生的枕形固定磁场由于偏转装置的磁场而矫正电子束的偏转像差，并提高了屏幕周围的聚焦特性。
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公开(公告)号：US5225736A
公开(公告)日：1993-07-06
申请号：US696755
申请日：1991-05-07
CPC分类号： H01J29/76 , H01J29/566 , H01J29/707
摘要： The invention provides a novel color cathode ray tube apparatus incorporating an eight-pole permanent magnet means, and thereby deflective aberration of electron beams caused by deflected magnetic field can securely be minimized. Integral structure of a plurality of magnetic poles permits the concerned to easily form up the eight-pole permanent magnet ring.
摘要翻译： 本发明提供一种并入八极永久磁铁装置的新型彩色阴极射线管装置，从而可以将由偏转磁场引起的电子束偏转像差最小化。 多个磁极的整体结构允许有关方面容易地形成八极永磁体环。
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公开(公告)号：US5206559A
公开(公告)日：1993-04-27
申请号：US911788
申请日：1992-07-13
CPC分类号： H01J29/566 , H01J29/703 , H01J29/76
摘要： In a cathode ray tube, a first pair of permanent magnet pieces are arranged along a horizontal direction and fixed on an end portion of a deflection unit at an electron gun side in such a manner that poles of one of the magnet pieces face the other poles of the other magnet piece. A second pair of permanent magnet pieces are arranged along a vertical direction, separated from the first pair of permanent magnet pieces by being fixed on a neck portion, forward of the electron gun assembly, and in such a manner that poles of one of the, magnet pieces face the other poles of the other magnet piece.
摘要翻译： 在阴极射线管中，沿着水平方向布置第一对永磁体片，并以电子枪侧的偏转单元的端部固定，使得一个磁体片的磁极面对另一个磁极 的另一个磁铁片。 第二对永磁体片沿垂直方向排列，通过固定在电子枪组件前面的颈部上并以这样的方式与第一对永磁体片分离， 磁铁片面对另一个磁铁片的另一个磁极。
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公开(公告)号：US4881004A
公开(公告)日：1989-11-14
申请号：US236184
申请日：1988-08-24
IPC分类号： H01J29/07
CPC分类号： H01J29/07 , H01J2229/0788
摘要： In a color cathode ray tube, a shadow mask and/or a panel is formed into the following shape. In the shadow mask and/or the panel, a radius of curvature at a central portion in a section taken along an X-Z parallel plane is larger than that at an effective diameter edge portion on the Y axis, and a radius of curvature at an effective diameter edge portion on the X axis is smaller than that at a diagonal effective diameter edge portion. In the panel, a difference between a thickness at an effective diameter edge portion and a thickness on the X axis in a section of the panel taken along a Y-Z parallel plane is maximum at a position between the center of the panel and the effective diameter edge portion on the X axis.
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公开(公告)号：US4886997A
公开(公告)日：1989-12-12
申请号：US163100
申请日：1988-03-02
申请人： Masatsugu Inoue , Kiyoshi Tokita , Kazunori Nakane
发明人： Masatsugu Inoue , Kiyoshi Tokita , Kazunori Nakane
CPC分类号： H01J29/073
摘要： A color picture tube of this invention has a CRT envelope having a substantially rectangular front panel, a phosphor screen formed on an inner surface of the front panel, a shadow mask which is detachably mounted on the panel adjacent to the phosphor screen by a supporting assembly, and a frame surrounding the shadow mask. The supporting assembly has a plurality of stud pins which project from the four corners of the front panel and leaf springs which are fixed at one end to a corresponding corner of the frame are detachably engaged at the other end with a corresponding stud pin. Each leaf spring has an elastically deformable portion between one end portion fixed to the frame and the other end portion engaged with the corresponding one of the stud pins. Angle .beta., defined by the axis of the elastically deformable portion a central line axis of the CRT envelope, and angle .alpha., defined by a line connecting an end portion of the elastically deformable portion on the side of the frame and the stud pin and the central line axis of the CRT envelope, have the following relation: .beta.
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公开(公告)号：US5901029A
公开(公告)日：1999-05-04
申请号：US842787
申请日：1997-04-16
CPC分类号： H01F13/00 , H04N9/29 , H01J2229/0053
摘要： In a method of testing a color cathode ray tube, an electron gun assembly is energized to emit electron beams and only a horizontal deflection magnetic field is applied to the electron beams so that a line image is displayed on a screen. A degaussing coil is located in front of the panel and a degaussing magnetic field having a frequency the same as that of a commercial power source. Thereafter, the degaussing coil is moved in a direction away from the panel and is deenergized when the coil is removed from the panel at a predetermined distance. A vertical deflecting coil is energized to display an image and a picture quality of the tube is tested.
摘要翻译： 在测试彩色阴极射线管的方法中，电子枪组件通电以发射电子束，并且只有水平偏转磁场被施加到电子束，使得线图像显示在屏幕上。 消磁线圈位于面板的前面，并具有与商用电源相同的频率的消磁磁场。 此后，消磁线圈沿着离开面板的方向移动，并且当线圈以预定距离从面板移除时断电。 垂直偏转线圈通电以显示图像，并测试管的图像质量。
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公开(公告)号：US4963786A
公开(公告)日：1990-10-16
申请号：US298973
申请日：1989-01-19
申请人： Kiyoshi Tokita , Takashi Murai , Takeshi Fujiwara
发明人： Kiyoshi Tokita , Takashi Murai , Takeshi Fujiwara
CPC分类号： H01J29/073 , H01J2229/0722
摘要： In a color cathode ray tube according to this invention, there are provided a plurality of first elastic supporting members welded to a mask frame to support a shadow mask in a panel and each having a metal plate, and at least one second elastic supporting member each having a metal plate and a washer. The area of a polygon formed on a plane lying at right angles with the tube axis and having apices corresponding to the first elastic supporting members is at least about 1/2 of the area of the substantial quadrangle formed by projecting the shadow mask on said plane.
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公开(公告)号：US5339010A
公开(公告)日：1994-08-16
申请号：US37536
申请日：1993-03-26
CPC分类号： H01J31/203 , H04N9/28
摘要： A color cathode-ray tube apparatus comprising a video signal generator, a delay circuit, an electron gun assembly, a deflection yoke, a shadow mask, and a phosphor screen. The signal generator generates three video signals simultaneously. The delay circuit delays the first and second video signals with respect to the third video signal. The screen has phosphor elements regularly arranged. The electron gun assembly generates three electron beams at different times, in response to the three signals output by the delay means. These beams are applied to the phosphor screen, and the phosphor elements of the screen emit red light, green light and blue light. Any three electron beams the gun assembly emits simultaneously form three beam spots on the screen. These spots overlap for a distance longer than half the horizontal diameter of a beam spot formed by an electron beam of the greatest current which the gun assembly can generate. The shadow mask, located between the phosphor screen and the gun assembly, controls the beams, making them land at desired positions on the phosphor screen. The deflection yoke deflects the beams in the horizontal and vertical directions, such that the electron beams scan the entire screen. The beams, deflected in the horizontal direction, land at substantially the same point on the screen, forming a color pixel thereon.
摘要翻译： 一种彩色阴极射线管装置，包括视频信号发生器，延迟电路，电子枪组件，偏转线圈，荫罩和荧光屏。 信号发生器同时产生三个视频信号。 延迟电路相对于第三视频信号延迟第一和第二视频信号。 屏幕上定期布置荧光粉元件。 响应于由延迟装置输出的三个信号，电子枪组件在不同时间产生三个电子束。 这些光束被施加到荧光屏上，荧光屏的荧光体发出红光，绿光和蓝光。 枪组件同时发射的任何三束电子束在屏幕上形成三个光束点。 这些点重叠长度比由枪组件可以产生的最大电流的电子束形成的束斑的水平直径的一半的距离。 位于荧光屏和枪组件之间的荫罩控制光束，使它们落在荧光屏上的所需位置。 偏转轭在水平和垂直方向偏转光束，使得电子束扫描整个屏幕。 在水平方向上偏转的光束在屏幕上的基本相同的点处着陆，在其上形成彩色像素。
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公开(公告)号：US4537321A
公开(公告)日：1985-08-27
申请号：US564197
申请日：1983-12-22
申请人： Kiyoshi Tokita
发明人： Kiyoshi Tokita
CPC分类号： H01J29/861 , H01J2229/862
摘要： A flatter faceplate cathode-ray tube. If maximum effective dimensions perpendicular to a tube axis, which correspond to the distances between the center of the inner surface and a peripheral portion along the lateral axis, between the center of the inner surface and a peripheral portion along the longitudinal axis, and between the center of the inner surface and a corner along the diagonal axis, are represented by Ss, Sl and Sd, respectively. The ratio between these three values is selected to be 3:4:5. The distances between the center of the inner surface and those individual points along the tube axis defined as .DELTA.D, .DELTA.L and .DELTA.S, respectively, are limited as follows to obtain the dimensions of a flatter source CRT:0.06.ltoreq..DELTA.D.ltoreq.0.12,0.05.ltoreq..DELTA.L.ltoreq.0.10,0.04.ltoreq..DELTA.S.ltoreq.0.80.
摘要翻译： 更平坦的面板阴极射线管。 如果垂直于管轴线的最大有效尺寸（其对应于内表面的中心与沿着横向轴线的周边部分之间的距离）在内表面的中心和沿着纵向轴线的周边部分之间以及在 内表面的中心和对角轴的角分别由Ss，S1和Sd表示。 这三个值之间的比值选择为3：4：5。 分别定义为DELTA D，DELTA L和DELTA S的内表面中心与沿着管轴的那些单独点之间的距离如下限制，以获得更平坦的源CRT的尺寸：0.06
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