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11. 发明授权

US06420841B2 Color display device 失效
标题翻译：彩色显示设备
公开(公告)号：US06420841B2
公开(公告)日：2002-07-16
申请号：US09745878
申请日：2000-12-22
申请人： Jozef Cornelis Walterus Van Vroonhoven
发明人： Jozef Cornelis Walterus Van Vroonhoven
IPC分类号： G09G104
CPC分类号： H01J29/563 , H01J2229/4841
摘要： A colour display device (19) is disclosed having an improved focus performance. In state-of-the-art colour display tubes, a static voltage is applied to the focusing electrode (23). This means that only one focus voltage is available for the entire range of beam currents. In general, due to the fact that the diameter of the electron beams (7,8,9) increases as the beam current increases, the focus voltage is a function of this beam current, which itself is determined by the cathode voltage. In this invention, a colour display device (19) is disclosed in which the voltage on the focusing electrode (23) is changed as a function of the cathode voltages, thereby significantly improving the focus performance.
摘要翻译：公开了一种具有改进的聚焦性能的彩色显示装置（19）。在最先进的彩色显像管中，静电压被施加到聚焦电极（23）。这意味着只有一个聚焦电压可用于整个光束电流范围。通常，由于电子束（7,8,9）的直径随着电流的增加而增加，所以聚焦电压是该束电流的函数，其本身由阴极电压确定。在本发明中，公开了一种彩色显示装置（19），其中聚焦电极（23）上的电压根据阴极电压而变化，从而显着提高了聚焦性能。

12. 发明授权

US06268705B1 Raster demodulation apparatus and method 失效
标题翻译：光栅解调装置及方法
公开(公告)号：US06268705B1
公开(公告)日：2001-07-31
申请号：US08836797
申请日：1997-05-19
申请人： John Beeteson , Andrew Knox
发明人： John Beeteson , Andrew Knox
IPC分类号： G09G128
CPC分类号： H01J29/563 , G09G1/00 , H01J29/66 , H04N3/26 , H04N3/27 , H04N3/30
摘要： Raster demodulation apparatus for a raster-scanned cathode ray tube display comprises control means (400) for varying the shape of at least one scanned electron beam spot (661-663) in a direction perpendicular to scan lines of the raster. The control means (400) comprises an electro-magnet (700) for mounting on the neck of the cathode ray tube. The magnet (700) has eight pole pieces (720-790) spaced around the neck of the cathode ray tube (210). A winding (710) passes around each of the pole pieces (720-790) in succession in opposite directions so that, when an electrical current (I) is passed through the winding, adjacent pole pieces (720-790) around the neck of the cathode ray tube have different magnetic polarity to generate, within the neck of the cathode ray tube (210), a magnetic field in which magnetic lines of force (680) pass through the or each electron beam (661-663) only in a direction parallel to the scan lines of the raster.
摘要翻译：用于光栅扫描阴极射线管显示器的光栅解调装置包括用于在垂直于光栅的扫描线的方向上改变至少一个扫描的电子束光点（661-663）的形状的控制装置（400）。控制装置（400）包括用于安装在阴极射线管的颈部上的电磁体（700）。磁体（700）具有在阴极射线管（210）的颈部间隔开的八个极片（720-790）。绕组（710）在相反方向上连续穿过每个极片（720-790），使得当电流（I）穿过绕组时，相邻的极片（720-790）围绕颈部阴极射线管具有不同的磁极性，在阴极射线管（210）的颈部内产生磁力线（680）仅在一个或多个电子束（661-663）内通过该电子束（661-663）的磁场方向平行于光栅的扫描线。

13. 发明授权

US4503354A Camera tubes 失效
标题翻译：相机管
公开(公告)号：US4503354A
公开(公告)日：1985-03-05
申请号：US325187
申请日：1981-11-27
申请人： Eric D. Hendry
发明人： Eric D. Hendry
IPC分类号： H01J29/56 , H01J29/66 , H01J31/38
CPC分类号： H01J29/66 , H01J29/563
摘要： A photoconductive target camera tube provided to operate within a solenoid producing a uniform magnetic focusing field has a grid with a beam width defining aperture therein between the electron gun and the normally provided cylindrical anode. The aperture grid is mounted upon a ring of magnetic material which acts to reduce the magnitude of the focusing magnetic field at the plane of the aperture so to achieve a demagnification of the image of the aperture at the target with a consequent reduction in the beam spot size.
摘要翻译：提供用于在产生均匀磁场聚焦场的螺线管内操作的光导目标相机管具有栅格宽度，其在电子枪和正常提供的圆柱形阳极之间限定孔。孔径格栅安装在磁性材料环上，其作用是减小孔径平面处的聚焦磁场的大小，以便实现目标孔径图像的缩小，从而导致束斑减小尺寸。

14. 发明授权

US4334170A Means and method for providing optimum resolution of T.V. cathode ray tube electron guns 失效
公开(公告)号：US4334170A
公开(公告)日：1982-06-08
申请号：US79926
申请日：1979-09-28
申请人： Robert G. Rockwell
发明人： Robert G. Rockwell
IPC分类号： H01J9/44 , H01J29/48 , H01J29/56 , H01J29/46
CPC分类号： H01J29/488 , H01J29/563
摘要： A novel electron gun for use in television cathode ray tubes of the direct view or projection type is disclosed. The cathode ray tube has associated therewith a power supply for developing a predetermined pattern of operating voltages including first and second adjustable voltages. The electron gun has apertured electrodes aligned on an axis for receiving the operating voltages to produce a focused beam of electrons. The electron gun comprises lower end means for generating an electron beam having a crossover. The beam expands in the aperture of a prefocusing electrode following the crossover and the outer rays of the expanding beam define a half-angle with respect to the axis. The tube also comprises main focus lens means adjacent to the prefocusing electrode for receiving the expanding beam and focusing the beam to form a beam spot of minimum size at a predetermined distance from the gun. The main focus lens means has at least a focusing electrode for receiving the first adjustable voltage for focusing the beam spot. The main focus lens means, by its inherent characteristics, is capable of focusing a minimum beam spot whose size is a function of the beam half-angle. The gun according to the invention is characterized by having at least one-half angle control element located in the region between the lower end means and the focus lens means and relatively widely spaced from the prefocusing electrode. The aperture of said control element is relatively larger than the aperture of the prefocusing electrode. Means are provided for receiving a second adjustable voltage from the power supply and applying the voltage to the control element for increasing or decreasing the strength of its half-angle control field and hence increasing or decreasing the half-angle. Means are provided for fixing the second adjustable voltage for maintaining a selected constant optimum voltage on the control element effective to cause the size of the focused beam spot to remain essentially minimum for equal focus voltage at different current levels.

15. 发明公开

US20240170248A1 PARTICLE BEAM SYSTEM 审中-公开
公开(公告)号：US20240170248A1
公开(公告)日：2024-05-23
申请号：US17992007
申请日：2022-11-22
申请人： Kamil Podhola
发明人： Kamil Podhola
IPC分类号： H01J29/56 , H01J29/58 , H01J31/04 , H01J31/50
CPC分类号： H01J29/563 , H01J29/58 , H01J31/04 , H01J31/50 , H01J2229/58
摘要： The invention relates to a particle beam system (PBS) comprising a particle guiding tube, one or more transversely movable electrodes (of a defined type) providing a transverse electric and/or magnetic field (pulse or linear) wherein a particle flow can be influenced by the electrodes which can further have a defined shape. The PBS can be provided with a protective film and/or an insulation, it can form a mono and/or stereo particle path. The PBC can provide a cross-sectionally shaped beam, an adjustable optical axis, a rotating electric and/or magnetic field, a circularly polarized beam. The PBS can form an array, it can comprise one or more connections, one or more modules. The PBC can be coupled with electro- and/or mechanocomponents. The PBC can form lenses configured in a separate eye ray configuration. A method for providing a particle beam and a digitizer of photographic or X-ray images are proposed.

16. 发明授权

US5481157A Electron gun for cathode-ray tube 失效
标题翻译：阴极射线管用电子枪
公开(公告)号：US5481157A
公开(公告)日：1996-01-02
申请号：US221517
申请日：1994-04-01
申请人： Chie Takahashi
发明人： Chie Takahashi
IPC分类号： H01J29/48 , H01J29/56 , H01J29/62
CPC分类号： H01J29/563 , H01J29/488
摘要： An electron gun for the cathode-ray tube is disclosed, in which an early stage lens unit and a main lens unit are respectively constructed as a bipotential form lens. A high voltage equivalent to the voltage applied to a grid of the main lens unit is applied to a grid of the early stage lens unit thereby to reduce the space charge effect, while at the same time suppressing the change of the beam spot shape with the change in the beam current.
摘要翻译：公开了一种用于阴极射线管的电子枪，其中早期透镜单元和主透镜单元分别构造为双电位透镜。将施加到主透镜单元的栅极的电压的高电压施加到早期透镜单元的格栅，从而减小空间电荷效应，同时抑制光束点形状的变化改变光束电流。

17. 发明授权

US5196768A Color display tube system 失效
标题翻译：彩色显示管系统
公开(公告)号：US5196768A
公开(公告)日：1993-03-23
申请号：US859198
申请日：1992-03-27
申请人： Albertus A. S. Sluyterman
发明人： Albertus A. S. Sluyterman
IPC分类号： H01J29/58 , H01J29/56 , H01J29/70
CPC分类号： H01J29/705 , H01J29/563
摘要： Color display tube comprising an electron gun for producing three co-planar electron beams, and including a deflection system which, in operation, generates deflection fields of the self-convergent type, with three consecutive elements influencing convergence being arranged between the electron gun and the display screen, the two outer elements producing, in operation, opposite effects and the central element being energizable for correcting remaining convergence errors.

18. 发明授权

US4970429A Picture pick-up device and television camera tube 失效
标题翻译：摄影装置和电视摄影机
公开(公告)号：US4970429A
公开(公告)日：1990-11-13
申请号：US843368
申请日：1986-03-24
申请人： Adrianus A. J. Franken
发明人： Adrianus A. J. Franken
IPC分类号： H01J31/28 , H01J29/56 , H01J29/64
CPC分类号： H01J29/563
摘要： Picture pickup device comprising a television camera tube having an electron gun, and a photo-sensitive target in an evacuated envelope. An electron beam generated by the electron gun is focused by focusing means onto the target. The electron beam is deflected by deflection means and describes a line raster across the target. The electron beam forms an elongated spot on the target. The longitudinal axis of the spot is perpendicular to the lines of the raster and has a length which is substantially equal to the line spacing. The elongated spot is obtained with the aid of an adjustable multipolar stigmator which, viewed in the direction of propagation of the electron beam, is provided in front of the focusing and deflection means, coaxially around the axis of the envelope and the electron gun. The shape of the spot can be adjusted in an optimum manner so that stern waves are completely suppressed. It is possible to provide the stigmator in or around the tube and to adjust it by magnetization, if required, through the wall of the envelope.
摘要翻译：图像拾取装置包括具有电子枪的电视摄像机管和在真空外壳中的光敏靶。由电子枪产生的电子束通过聚焦装置聚焦在靶上。电子束被偏转装置偏转，并描绘了目标上的线条光栅。电子束在靶上形成细长的斑点。光点的纵轴垂直于光栅的线，其长度基本上等于线间距。借助于可调节的多极点阵器，在电子束的传播方向上观察，在聚焦和偏转装置的前面，同轴地设置在外壳和电子枪的轴线上，获得细长的光点。可以以最佳方式调整光斑的形状，使得尾部波被完全抑制。可以在管内或周围提供标示器，并且如果需要，通过信封的壁通过磁化进行调节。

19. 发明授权

US4426599A Television camera tube 失效
标题翻译：电视摄像管
公开(公告)号：US4426599A
公开(公告)日：1984-01-17
申请号：US284437
申请日：1981-07-20
申请人： Nicolaas H. Limper , Cornelis J. W. M. Scheffers
发明人： Nicolaas H. Limper , Cornelis J. W. M. Scheffers
IPC分类号： H01J31/38 , H01J29/48 , H01J29/56 , H01J29/58 , H01J29/64 , H01J29/76 , H01J31/26
CPC分类号： H01J29/563
摘要： A television camera tube comprising, in an evacuated envelope, an electron gun to generate an electron beam which during operation of the tube is focused to form a spot on a photosensitive target. On the target, a potential distribution is formed by projecting an optical image on it. By scanning the target with an electron beam, signals corresponding to the optical image are produced. The target is scanned in a line deflection direction and a frame deflection direction. According to the invention, the spot has an elongate shape, which shape is determined by a line at the edge of the spot which interconnects points having the same current density. The shape of the electron spot is such that the ratio, k, between the lengths of the long and short axes of the spot is 1.4.ltoreq.k.ltoreq.2. The long axis of the spot divides the acute angle between the line deflection direction and the frame deflection direction in such manner that0.degree..ltoreq..beta..ltoreq.60.degree.,where .beta. is the angle between the long axis and the frame deflection direction. A television camera tube is obtained in which the modulation depth is (a) larger than in comparable tubes having a circular spot, (b) less dependent on the orientation of the usual test pattern for the modulation depth, and (c) substantially symmetrical with rotation of the test pattern from the vertical position.
摘要翻译：一种电视摄像机管，其包括在抽真空的外壳中的电子枪，以产生电子束，该电子束在管的操作期间被聚焦以在感光目标上形成点。在目标上，通过在其上投影光学图像形成电位分布。通过用电子束扫描目标物，产生与光学图像相对应的信号。以线偏转方向和框架偏转方向扫描目标。根据本发明，斑点具有细长形状，该形状由在具有相同电流密度的点相互连接的点的边缘处的线确定。电子斑点的形状使得点的长轴和短轴的长度之比k为1.4≤k≤2。点的长轴以0°=β°= 60°的方式将线偏转方向和框架偏转方向之间的锐角分开，其中β是长轴与框架偏转方向之间的角度。获得电视照相机管，其中调制深度（a）大于具有圆形斑点的可比较管中的调制深度，（b）较小地依赖于通常的调制深度测试图案的取向，（c）与测试图案从垂直位置旋转。

20. 发明授权

US4322742A Method and apparatus for improving the sharpness of a video picture 失效
标题翻译：提高视频画面清晰度的方法和装置
公开(公告)号：US4322742A
公开(公告)日：1982-03-30
申请号：US855304
申请日：1977-11-28
申请人： Susumu Yoshida , Yoshio Ishigaki , Kinya Shinkai
发明人： Susumu Yoshida , Yoshio Ishigaki , Kinya Shinkai
IPC分类号： H04N3/00 , H01J29/50 , H01J29/56 , H04N3/32 , H04N9/20 , H04N5/68
CPC分类号： H01J29/563 , H04N3/32
摘要： A method and apparatus for improving the sharpness of a video picture displayed on the screen of a cathode ray tube. At least one electron beam scans the screen in line-scanning and vertical directions, respectively, the electron beam having its intensity modulated in accordance with a video signal. The scanning velocity of the electron beam is modulated in the line-scanning direction in accordance with transitions of the video signal which correspond to transitions between high and low brightness levels of the displayed video picture. Each electron beam is shaped to have a substantially oval shape whose longer axis is disposed in the line-scanning direction and whose shorter axis is disposed in the vertical direction, whereby the oval-shaped beam impinges upon the display screen and the sharpness of the displayed video picture in the vertical direction is improved.
摘要翻译：一种用于提高显示在阴极射线管屏幕上的视频图像的清晰度的方法和装置。至少一个电子束分别沿着线扫描和垂直方向扫描屏幕，电子束的强度根据视频信号进行调制。根据对应于所显示的视频图像的高亮度和低亮度水平之间的转变的视频信号的转变，电子束的扫描速度在行扫描方向上被调制。每个电子束被成形为具有大致椭圆形状，其长轴沿行扫描方向设置，并且其短轴设置在垂直方向上，由此椭圆形光束撞击显示屏幕并且显示的清晰度视频图像在垂直方向改善。

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