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    SHADOW MASK TYPE OF CATHODE RAY TUBE
    1.
    发明授权
    SHADOW MASK TYPE OF CATHODE RAY TUBE 失效

    公开(公告)号：KR830001484B1

    公开(公告)日：1983-07-30

    申请号：KR770002301

    申请日：1977-09-30

    Applicant: RCA CORP

    Inventor： MORRELL ALBERT MAXWELL

    IPC: H01J29/02 ,  H01J29/07

    Abstract: A cathode ray tube which increases self-supporting force and prevents hear-expansion of shadow mask caused from electron beam in beginning of operation includes a shadow mask shaped wave for which peaks and bottoms are parallel with each other and have hundreds of thousand of holes. A distance between pitch and pitch of wave is at least two times of a distance between hole and hole.

    Self-converging color television display system
    2.
    发明授权
    Self-converging color television display system 失效
    自动彩色电视显示系统

    公开(公告)号：US3892996A

    公开(公告)日：1975-07-01

    申请号：US37483173

    申请日：1973-06-29

    Applicant: RCA CORP

    Inventor： MORRELL ALBERT MAXWELL ,  BARKOW WILLIAM HENRY ,  GROSS JOSEF

    IPC: H01J29/50 ,  H01J31/20 ,  H01J29/66 ,  H01J29/76

    CPC classification number: H01J31/206 ,  H01J29/503

    Abstract: A color television display system is described which requires no dynamic convergence apparatus for small and medium size screen color picture tubes and which requires relatively simple dynamic convergence apparatus for large screen color picture tubes. The color picture tube includes an electron gun assembly for producing three adjacent coplanar beams having a predetermined maximum spacing therebetween. The electron gun assembly includes a common three-aperture beam forming electrode for establishing precise alignment of the beams. The beams are substantially converged at all points in the scanned raster as they are deflected by a deflection yoke providing negative horizontal isotropic astigmatism and positive vertical isotropic astigmatism. The gun assembly includes magnetic shield members disposed around the two outside beam paths to shield those beams from a portion of the deflection field so that the raster scanned by the three beams are the same size. In addition, the color picture tube includes a faceplate having repeating groups of three different color phosphor strips and an aperture mask including a plurality of elongated slit apertures disposed adjacent the phosphor strips to enhance the light output from the picture tube.

    Abstract translation: 描述了一种彩色电视显示系统，其不需要用于中小尺寸屏幕彩色显像管的动态会聚装置，并且其需要用于大屏幕彩色显像管的相对简单的动态会聚装置。 彩色显像管包括一个电子枪组件，用于产生三个相邻的共面光束，它们之间具有预定的最大间距。 电子枪组件包括用于建立光束的精确对准的公共三孔光束形成电极。 当被偏转线圈偏转时，光束在扫描光栅中的所有点基本会聚，从而提供负的水平各向同性散光和正垂直各向同性散光。 枪组件包括设置在两个外部光束路径周围的磁屏蔽构件，以将这些光束从偏转场的一部分屏蔽，使得由三个光束扫描的光栅具有相同的尺寸。 此外，彩色显像管包括具有三个不同颜色的荧光体条的重复组的面板和包括邻近磷光体条设置的多个细长的狭缝孔的孔径掩模，以增强从显像管的光输出。

    METHOD FOR SCREENING LINE SCREEN SLIT MASK COLOR PICTURE TUBES
    3.
    发明专利
    METHOD FOR SCREENING LINE SCREEN SLIT MASK COLOR PICTURE TUBES 未知

    公开(公告)号：GB2185148B

    公开(公告)日：1990-04-11

    申请号：GB8630240

    申请日：1986-12-18

    Applicant: RCA CORP ,  RCA LICENSING CORP

    Inventor： MORRELL ALBERT MAXWELL ,  MASTERTON WALTER DAVID ,  BAUDER RICHARD CLARK

    IPC: G03B41/00 ,  H01J9/227

    Abstract: The present invention is an improvement in a method of screening a line screen slit mask color picture tube. Such method includes coating a faceplate panel of the tube with a photosensitive material, inserting a slit shadow mask into the panel and exposing the photosensitive material by passing light from a line light source through the slits of the mask. Such method further comprises positioning a generally cylindrical shaped lens between the line light source and the faceplate panel during exposure of the photosensitive material. The longitudinal axis of the lens is oriented perpendicular to the longitudinal axis of the line light source. The improvement comprises moving both the faceplate panel and the cylindrical shaped lens in synchronization in a direction parallel to the line light source during the exposing step.

    COLOR PICTURE TUBE LINE SCREEN
    4.
    发明专利
    COLOR PICTURE TUBE LINE SCREEN 未知

    公开(公告)号：GB2175133A

    公开(公告)日：1986-11-19

    申请号：GB8605931

    申请日：1986-03-11

    Applicant: RCA CORP

    Inventor： MORRELL ALBERT MAXWELL ,  MASTERTON WALTER DAVID

    IPC: H01J29/07 ,  H01J29/32 ,  H01J29/86 ,  H01J31/20

    Abstract: An improvement is made in a color picture tube having a substantially rectangular slit-aperture type shadow mask mounted therein in spaced relation to a substantially rectangular cathodoluminescent line screen. In the specific improvement, the cathodoluminescent lines of said screen, in front plan view, first increase in curvature with an increase in distance from the minor axis of the screen and then decrease in curvature with further increase in distance from the minor axis, to become substantially straight at the short sides of the screen.

    5.
    发明专利
    未知

    公开(公告)号：FR2509527B1

    公开(公告)日：1986-03-28

    申请号：FR8212131

    申请日：1982-07-09

    Applicant: RCA CORP

    Inventor： MORRELL ALBERT MAXWELL ,  HUGHES RICHARD HENRY ,  BARKOW WILLIAM HENRY

    IPC: H01J29/50 ,  H01J29/51 ,  H01J29/62 ,  H01J31/20

    Abstract: The assembly (Fig. 3) has a trio of inline cathodes (21), a first grid (G1, 23) positioned adjacent the cathodes and a second grid (G2, 25) positioned between the first grid and a first focussing electrode (G3, 27). Each grid and electrode has a trio of inline apertures aligned with the cathodes. A common, assymmetric focussing lens is, in use, established between the first focussing electrode (G3) and a second focussing electrode (G4, 29). The lens has a maximum transverse dimension in a first direction parallel to the plane of the inline apertures greater than its maximum transverse dimension in a second orthogonal direction. In order that the cross-section of each electron beam has a greater dimension in the first direction than in the second direction at the beam- entrance of the lens, there is a slotted structure (Fig. 7, 68) associated with said first (23) grid interposing a rectangular slot (68) between each aperture (64) of the first grid and the aligned aperture of the second grid. The long dimension of the rectangle is in the second direction in the first grid (23).

    6.
    发明专利
    未知

    公开(公告)号：DE3406787A1

    公开(公告)日：1984-08-30

    申请号：DE3406787

    申请日：1984-02-24

    Applicant: RCA CORP

    Inventor： D AMATO RALPH JAMES ,  GODFREY RICHARD HUGH ,  MASTERTON WALTER DAVID ,  MORRELL ALBERT MAXWELL ,  WEBER DONALD LEWIS

    IPC: H01J31/20 ,  H01J29/86 ,  H01J29/07

    Abstract: A cathode-ray tube eg. a shadow mask colour tube, includes a rectangular faceplate which has an exterior surface having curvature along both the minor (Y-Y) and major (X-X) axes wherein at least in the center portion of the faceplate, the curvature along the minor axes is greater than the curvature along the major axis (as shown in Figure 6). In a preferred arrangement the curvature along the minor axis is at least 4/3 greater than the curvature along the major axis. The arrangement provides a substantially rectangular contour near the periphery of the faceplate lying in a plane P thus creating an illusion that a picture produced on the faceplate is flat. The faceplate may be associated with a shadow mask which similarly has greater curvature along its minor axis than along its major axis. Variations in the thickness of the faceplate are also discussed.

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