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公开(公告)号：US06424085B1
公开(公告)日：2002-07-23
申请号：US09357269
申请日：1999-07-20
IPC分类号： H01J2970
CPC分类号： H01J29/003 , H01J29/006 , H01J2229/0046
摘要： A deflection unit of a cathode ray tube is provided with a cooling fan. The fan includes means for reducing the disturbing effect of the electric field generated by the fan on the deflection of the electrons, or the fan is arranged in such a manner that the disturbing effect is small.
摘要翻译： 阴极射线管的偏转单元设置有冷却风扇。 风扇包括用于减小由风扇产生的电场对电子偏转的干扰效应的装置，或风扇以令人不安的效果小的方式布置。
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公开(公告)号：US06411027B1
公开(公告)日：2002-06-25
申请号：US09338049
申请日：1999-06-22
IPC分类号： H01J2970
CPC分类号： H01J29/705 , H01J29/707 , H01J2229/5687
摘要： The invention relates to a color display device comprising an in-line electron gun (5) for generating three electron beams (6,7,8), and a convergence unit (14′) to dynamically influence the convergence of the electron beams, preferably to decrease a distance (p) between the electron beams. The convergence unit (14′) comprises a ring-shaped element (21′) having four coils (22′). The coils (22′) comprise electrically conductive wires, which have been toroidally wound in a winding direction and according to a winding density distribution N (&phgr;) given by N (&phgr;)=N0 cos (2&phgr;). Here &phgr; is an angle enclosed by the X-direction and a line between an element of the coil and the center, which ranges between 0° and 360°, N0 is the winding density at &phgr; equal to 0°, and the sign of N &phgr; denotes the winding direction.
摘要翻译： 本发明涉及一种彩色显示装置，包括用于产生三个电子束（6,7,8）的一字排列的电子枪（5,8），以及用于动态地影响电子束的会聚的会聚单元（14'），优选地 以减小电子束之间的距离（p）。 会聚单元（14'）包括具有四个线圈（22'）的环形元件（21'）。 线圈（22'）包括已经沿着卷绕方向环绕缠绕并根据由N（phi）= N 0 cos（2phi）给出的绕组密度分布N（phi）的导电线。 这里，phi是由X方向和线圈的元件与中心之间的线包围的角度，其范围在0°和360°之间，N0是在phi等于0°处的卷绕密度，N的符号 phi表示卷绕方向。
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公开(公告)号：US4975617A
公开(公告)日：1990-12-04
申请号：US910816
申请日：1986-09-23
CPC分类号： H01J1/46
摘要： Flat and slightly convex pyrolytic graphite grid electrodes are very suitable for use in electric discharge tubes, are example in ion sources, cathode-ray tubes, travelling waveguides and transmitter tubes. It has proved possible to manufacture such electrodes by manufacturing the grid and the grid holder of the pyrolytic graphite electrode from one piece of pyrolytic graphite. Such integral grid electrodes have very good mechanical and thermal properties.
摘要翻译： 扁平和微凸的热解石墨网格电极非常适合用于放电管，例如在离子源，阴极射线管，行进波导和发射管中。 已经证明可以通过从一片热解石墨制造热解石墨电极的栅格和栅格架来制造这样的电极。 这种一体栅格电极具有非常好的机械和热性能。
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公开(公告)号：US6087768A
公开(公告)日：2000-07-11
申请号：US103455
申请日：1998-06-24
CPC分类号： H01J29/826
摘要： A cathode ray tube having a deflection unit, the play between the deflection unit (11) and the envelope (4) being different for two perpendicular (x and y) directions. This enables the tilt of the deflection unit relative to the envelope to be greater in a direction than in a direction at right angles to said direction. By virtue thereof, the distance between the deflection unit and the electron beams can be reduced, so that the deflection requires less energy and can be improved.
摘要翻译： 一种具有偏转单元的阴极射线管，偏转单元（11）和外壳（4）之间的间隔对于两个垂直（x和y）方向是不同的。 这使得偏转单元相对于包络线的倾斜度在与所述方向成直角的方向上的方向上更大。 因此，可以减小偏转单元和电子束之间的距离，使得偏转需要更少的能量并且可以改善。
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公开(公告)号：US5122657A
公开(公告)日：1992-06-16
申请号：US581827
申请日：1990-09-12
CPC分类号： H04N1/02835 , G02B6/06 , H04N1/0284 , H04N1/03 , H04N1/1936
摘要： The device is provided with an optical fiber bundle (5) having a first linear end face (9) at the document side and a second end face (11) whose shape is adapted to the shape of the detection system (3).To reduce the quantity of disturbing light from the light source (43; 61, 62; 44), which may reach the detection system (3), to a maximum possible extent, and to increase the quantity of signal light from the document (1), the second end face (11) is provided with an optical system (13, 14; 50; 70) for an improved coupling in and for reflections. The first end face (9) may also be provided with an optical system (16, 17) for reducing unwanted reflections.
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公开(公告)号：US06376981B1
公开(公告)日：2002-04-23
申请号：US09338048
申请日：1999-06-22
IPC分类号： H01J2970
CPC分类号： H01J29/707 , H01J29/705 , H01J2229/5687
摘要： The invention relates to a color display device comprising an in-line electron gun (5) for generating three electron beams (6,7,8), and a convergence unit (14) to dynamically influence the convergence of the electron beams, preferably to decrease a distance (p) between the electron beams. The convergence unit (14) comprises a ring-shaped element (21) having four coils (22) and a longitudinal axis (24). A cross-section of the ring-shaped element (21) with a plane perpendicular to the longitudinal axis (24) is a circle with the longitudinal axis as its center and the ring-shaped element (21) forming the circumference. Each coil extends over the circumference over an angle &phgr; having a value between 50° and 75°.
摘要翻译： 本发明涉及一种彩色显示装置，包括用于产生三个电子束（6,7,8）的直列式电子枪（5）和用于动态地影响电子束的会聚的会聚单元（14），优选地 减小电子束之间的距离（p）。 会聚单元（14）包括具有四个线圈（22）和纵向轴线（24）的环形元件（21）。 具有垂直于纵向轴线（24）的平面的环形元件（21）的横截面是以纵向轴线为中心并且环形元件（21）形成圆周的圆形。 每个线圈在圆周上延伸超过50°和75°之间的角度的phi。
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公开(公告)号：US4899079A
公开(公告)日：1990-02-06
申请号：US709464
申请日：1985-03-07
CPC分类号： H01J29/624 , H01J29/51 , H01J2229/4827
摘要： In a color display tube including an envelope, a display screen, an electron gun system for producing and focusing a plurality of electron beams directed at the display screen, and coils for deflecting the beams, convergence of the beams independently of focusing is effected by a helically wound resistive element disposed in the envelope between the electron gun system and the deflection coils. The element surrounds the electron beams and is dimensioned such that, when predetermined potentials are applied thereto, a potential gradient is produced along its length which establishes a relatively large diameter, strong convergence lens through which the beams pass.
摘要翻译： 在包括外壳，显示屏，用于产生和聚焦指向显示屏的多个电子束的电子枪系统和用于偏转光束的线圈的彩色显象管中，独立于聚焦的光束的会聚由 螺旋缠绕的电阻元件设置在电子枪系统和偏转线圈之间的包络中。 该元件围绕电子束，并且其尺寸使得当预定电位被施加到其上时，沿着其长度产生电位梯度，该电位梯度建立了相对较大直径的强会聚透镜。
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公开(公告)号：US4874982A
公开(公告)日：1989-10-17
申请号：US208952
申请日：1988-06-17
CPC分类号： H01J29/826
摘要： Display device includes a cathode ray tube having an envelope 1 with a number of reference surfaces on the walls of V-shaped grooves provided on positioning studs 14. The deflection unit 10 is provided with adjustable camming members 15 which lie against respective reference surfaces. The position of the deflection unit 10 relative to the envelope 1 can be adjusted by rotating camming members 15.
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