公开(公告)号：US5384511A

公开(公告)日：1995-01-24

申请号：US203754

申请日：1994-03-01

Applicant: Takeo Fujimura

Inventor： Takeo Fujimura

IPC: H01J9/14 ,  H01J29/07

CPC classification number: H01J29/07

Abstract: An apertured shadow mask is curved so that the curvature is concave on the back surface. The front surface generally follows the curvature of the back surface but has an undulating profile with ribs separated by troughs. The local thickness of the shadow mask is greatest in the ribs, and becomes gradually thinner toward the center lines of the troughs. The ribs and the center lines of the troughs have a zig-zag configuration. As a result, the front surface and neutral plane of the shadow mask have both convex and concave areas, which reduces localized doming.

Abstract translation: 有孔的荫罩是弯曲的，使得曲面在背面是凹的。 前表面通常遵循后表面的曲率，但是具有由槽分开的肋的波状轮廓。 荫罩的局部厚度在肋中最大，并且朝向槽的中心线逐渐变薄。 肋条和槽的中心线具有之字形配置。 结果，荫罩的前表面和中性面具有凸凹区域，这减少了局部隆起。

公开(公告)号：US5767614A

公开(公告)日：1998-06-16

申请号：US674730

申请日：1996-07-02

Applicant: Takeo Fujimura

Inventor： Takeo Fujimura

IPC: H01J29/48 ,  H01J29/82 ,  H01J29/88 ,  H01J29/70

CPC classification number: H01J29/485 ,  H01J2229/922

Abstract: A cathode ray tube includes a panel having a fluorescent screen formed on an inner surface thereof, a stem, and a neck between the panel and the stem. An electron gun is supported by a supporting structure in coaxial alignment with the neck. The electron gun has a focusing electrode which includes a first cylinder and a second cylinder having a larger diameter than the first diameter. The first cylinder has a first opening which opens toward the stem and the second cylinder has a second opening which opens toward the panel. A conductive layer is deposited on the inner surface of the cathode ray tube and receives a high voltage. An annular holder is mounted to the supporting structure so that the annular holder surrounds the first cylinder in coaxial alignment with the focusing electrode. The annular holder is a first predetermined radial distance away from the first cylinder and a second predetermined axial distance from second cylinders. A plurality of springs are mounted on the outer circumferential surface of the annular holder. The springs extend to electrically contact the conductive layer and hold the annular holder so that the annular holder is in coaxial alignment with the longitudinal axis of the cathode ray tube.

Abstract translation: 阴极射线管包括具有在其内表面上形成的荧光屏的面板，杆，以及面板和杆之间的颈部。 电子枪由与颈部同轴对准的支撑结构支撑。 电子枪具有聚焦电极，该聚焦电极包括具有比第一直径大的直径的第一气缸和第二气缸。 第一气缸具有朝向杆开口的第一开口，第二气缸具有向面板开口的第二开口。 导电层沉积在阴极射线管的内表面上并接收高电压。 环形保持器安装到支撑结构，使得环形保持器围绕与聚焦电极同轴对准的第一气缸。 环形保持器是离开第一气缸的第一预定径向距离和距离第二气缸的第二预定轴向距离。 多个弹簧安装在环形保持器的外圆周表面上。 弹簧延伸以与导电层电接触并保持环形保持器，使得环形保持器与阴极射线管的纵向轴线同轴对准。

公开(公告)号：US5635803A

公开(公告)日：1997-06-03

申请号：US423750

申请日：1995-04-18

Applicant: Takeo Fujimura

Inventor： Takeo Fujimura

IPC: H01J29/72 ,  H01J29/07 ,  H04N3/16 ,  H04N3/18 ,  H04N3/227 ,  H04N9/16 ,  H04N9/20 ,  H01J29/56

CPC classification number: H01J29/076 ,  H04N3/227

Abstract: A display device with shadowmask CRT comprises an offset scanning means for imparting an offset to the scanning lines. The offset is a shift that gently changes the position of the scanning lines in the Y-axis direction. The offset scanning means imparts the offset in such a way that an interval between neighboring scanning lines is gently changed in accordance with a position in the X-axis direction. The scanning line offset produces some loss in resolution in the Y-axis direction, but since the area which Moire pattern is strongly present coincides with the area of good resolution, even if the offset is imparted in this area, sufficiently high resolution can be obtained.

Abstract translation: 具有阴影CRT的显示装置包括偏移扫描装置，用于赋予扫描线偏移。 偏移是在Y轴方向上轻轻地改变扫描线的位置的移动。 偏移扫描装置以这样的方式施加偏移，使得相邻扫描线之间的间隔根据X轴方向上的位置轻轻地改变。 扫描线偏移在Y轴方向上产生分辨率的一些损失，但是由于莫尔图案强烈存在的区域与分辨率良好的区域一致，即使在该区域中赋予偏移，也可以获得足够高的分辨率 。

公开(公告)号：US4963008A

公开(公告)日：1990-10-16

申请号：US387803

申请日：1989-08-01

Applicant: Takeo Fujimura

Inventor： Takeo Fujimura

IPC: G02B3/08 ,  H01J9/227

CPC classification number: G02B3/08

Abstract: Disclosed are a correction lens system used in the process of producing the fluorescent screen of a color picture tube in order to reduce the positional deviation (mislanding) of the landing point of an electron beam projected to form a picture from the position of the corresponding fluorescent substance in the mosaic of the fluorescent screen, and a method of manufacturing the correction lens system. The correction lens system includes a first correction lens provided with a smooth curved surface for correcting the optical path of exposure rays for producing the fluorescent mosaic and a second correction lens provided with a discontinuous curved surface. The optical path of the exposure rays is corrected to the desired optical path by the refraction of the rays through the first and second correction lenses. The discontinuous curved surface of the second correction lens is produced by dividing a lens having a smooth curved surface into a plurality of ribbon like elements along division lines which are parallel to each other in one direction, rearranging the ribbon like elements with the respective ends reversed without changing the original arranging order between adjacent ribbon like elements, and re-bonding the ribbon like elements at the respective cut surfaces.

Abstract translation: 公开了一种用于制造彩色显像管的荧光屏的过程中的校正透镜系统，以便减少从相应的荧光体的位置投影形成图像的电子束的着色点的位置偏移（误落地） 荧光屏的马赛克中的物质，以及制造校正透镜系统的方法。 校正透镜系统包括：第一校正透镜，设置有用于校正用于产生荧光镶嵌物的曝光光线的光路的光滑曲面;以及设置有不连续曲面的第二校正透镜。 通过第一和第二校正透镜的光线的折射将曝光光线的光路校正到期望的光路。 第二校正透镜的不连续曲面通过沿着一个方向彼此平行的划分线将具有平滑曲面的透镜划分成多个带状元件来产生，将带状元件重新排列成相应的端部反转 而不改变相邻的带状元件之间的原始布置顺序，并且在相应的切割表面处重新粘合带状元件。

公开(公告)号：US4295110A

公开(公告)日：1981-10-13

申请号：US47993

申请日：1979-06-13

Applicant: Tatsuo Uesaka ,  Hiroshi Sugahara ,  Takeo Fujimura

Inventor： Tatsuo Uesaka ,  Hiroshi Sugahara ,  Takeo Fujimura

IPC: H01J29/54 ,  H01J29/70 ,  H01F1/00

CPC classification number: H01J29/703

Abstract: A barium ferrite layer is disposed around an external surface of neck portion of a color cathode ray tube to have a magnetic easy axis radially of the longitudinal axis of the neck portion. An electromagnet is revolved around the layer to magnetically charge it so as to correct static convergence and color purity of three electron beams generated in the color cathode ray tube.

Abstract translation: 铁素体钡层设置在彩色阴极射线管的颈部的外表面周围，以使颈部的纵向轴线径向具有易磁化的轴。 电磁体围绕该层旋转以对其进行充电以校正在彩色阴极射线管中产生的三束电子束的静态会聚和色纯度。

公开(公告)号：US4887010A

公开(公告)日：1989-12-12

申请号：US314941

申请日：1989-02-24

Applicant: Takeo Fujimura

Inventor： Takeo Fujimura

IPC: H04N3/16 ,  H04N3/233 ,  H04N9/16 ,  H04N9/20 ,  H04N9/26

CPC classification number: H04N3/233 ,  H04N9/20

Abstract: A display device which comprise a color cathode ray tube including a finely perforated shadow mask having a multiple of minute apertures defined therein in a predetermined pattern in a vertical direction relates to scanning lines depicted by electron beams, a horizontal deflecting unit for causing the scanning lines to sweep in a horizontal direction, a vertical deflecting unit for displacing the scanning lines of the electron beams in a vertical direction to permit the scanning lines to assume equally spaced relationship with each other, and a scanning line position adjusting unit for displacing every other scanning line from the total number of the scanning lines in the vertical direction in a quantity required to minimize the appearance of Moire pattern.

Abstract translation: 包括彩色阴极射线管的显示装置，其包括具有在垂直方向上以预定图案限定的多个微小孔的精细穿孔的荫罩，涉及由电子束描绘的扫描线，水平偏转单元，用于使扫描线 沿水平方向扫描垂直偏转单元，用于沿垂直方向移动电子束的扫描线，以允许扫描线彼此间隔开等距离的关系;以及扫描线位置调整单元，用于移动每隔一个扫描 从扫描线的总数在垂直方向上以使莫尔图案的外观最小化所需的量。

公开(公告)号：US4727280A

公开(公告)日：1988-02-23

申请号：US710997

申请日：1985-03-12

Applicant: Takeo Fujimura

Inventor： Takeo Fujimura

IPC: H01J29/07

CPC classification number: H01J29/076

Abstract: A shadow mask for a color cathode ray tube has grooves formed in the curved surface in such a manner that the bending strength within the plane having a larger radius of curvature becomes greater than the bending strength within the plane having a smaller radius of curvature, thereby increasing the effective radius of curvature of the curved surface.

Abstract translation: 用于彩色阴极射线管的荫罩具有形成在弯曲表面中的凹槽，使得具有较大曲率半径的平面内的弯曲强度大于具有较小曲率半径的平面内的弯曲强度，由此 增加曲面的有效曲率半径。

公开(公告)号：US4973879A

公开(公告)日：1990-11-27

申请号：US412224

申请日：1989-09-25

Applicant: Takeo Fujimura

Inventor： Takeo Fujimura

IPC: H01J29/07

CPC classification number: H01J29/076

Abstract: A shadow mask type color CRT has a plurality of electron beam holes and a plurality of bridges for dividing the holes in the axial direction thereof. The electron beam projected from an electron gun passes the electron beam holes and stimulates the fluorescent screen behind the holes so as to cause the fluorescent screen to emit light. By the arrangement of the bridges in such a manner as to deviate the position of each bridge by the distance U from the intersection of an imaginary lattice, the defect such as fringes including a Moire on the screen caused by the regular arrangement of the bridges in the prior art is eliminated. The distance U is determined by a probability distribution function Q(U) which satisfies Moire regulating conditions. The shadow mask type CRT is used as a CRT commonly for two different systems using a different number of scanning lines.

Abstract translation: 荫罩型彩色CRT具有多个电子束孔和多个用于沿其轴向方向分隔孔的桥。 从电子枪投射的电子束通过电子束空穴并刺激孔后面的荧光屏，以使荧光屏发光。 通过桥的布置，使得每个桥的位置偏离距离U与假想格点的交点的距离，诸如由网桥的规则布置引起的屏幕上包括莫尔条纹的条纹 消除了现有技术。 距离U由满足莫尔条件条件的概率分布函数Q（U）确定。 阴影掩模型CRT通常用于使用不同数目的扫描线的两个不同系统的CRT。

公开(公告)号：US4950944A

公开(公告)日：1990-08-21

申请号：US241958

申请日：1988-09-08

Applicant: Takeo Fujimura

Inventor： Takeo Fujimura

IPC: H01J29/07

CPC classification number: H01J29/07 ,  H01J2229/0788

Abstract: A tensed shadow mask assembly for a cathode ray tube having a phosphor-deposited screen, which comprises a generally rectangular perforated plate having four corners and correspondingly four peripheral edge portions and a four-sided frame member similar in shape to the contour of the perforated plate having four fitting faces to which the respective peripheral edge portions of the perforated plate is rigidly secured while the perforated plate is held under tension. The perforated plate is generally scalloped with respect to the center thereof such that corners of the perforated plate occupy respective positions on one side away from an imaginary plane touching the center of the perforated plate and being perpendicular to the longitudinal sense of the cathode ray tube, while substantially intermediate region of peripheral edge positions between the neighboring corners occupy respective positions on the other side away from the imaginary plane.

Abstract translation: 一种用于具有荧光体沉积屏幕的阴极射线管的张紧荫罩组件，其包括具有四个角部和相应的四个周边边缘部分的大致矩形的多孔板，以及与穿孔板的轮廓相似的四边框架构件 具有四个装配面，多孔板的各个周缘部分被刚性地固定到多孔板上，同时多孔板被保持在张力下。 多孔板相对于其中心通常是扇形的，使得多孔板的拐角在远离接触多孔板的中心并且垂直于阴极射线管的纵向的虚拟平面的一侧占据相应的位置， 而相邻角之间的周边边缘位置的大致中间区域占据远离虚拟平面的另一侧的相应位置。

公开(公告)号：US5336963A

公开(公告)日：1994-08-09

申请号：US140711

申请日：1993-10-22

Applicant: Akira Haga ,  Hiroshi Nasuno ,  Takeo Fujimura

Inventor： Akira Haga ,  Hiroshi Nasuno ,  Takeo Fujimura

IPC: H01J29/02 ,  H01J29/06 ,  H01J29/07

CPC classification number: H01J29/06

Abstract: In a color cathode-ray tube having a shadow mask disposed to face a phosphor screen and having apertures for passage of an electron beam, and a frame for reinforcing tile periphery of the shadow mask, a magnetic shield comprises strips of magnetic material each having a first end fixed to the frame and a second end disposed closer to the electron gun. Because of the elongated shape, the strips are magnetized easily only in the direction of their length. As a result, an external magnetic field parallel to the strips, and hence with the tube axis, is reduced or canceled. Moreover, if each strip is bent near its second end so that the second end is directed toward a horizontal plane containing the tube axis, an external magnetic field in the direction in which the second end is directed is enhanced. This will further reduce deviation of the electron beam path In the horizontal direction.

Abstract translation: 在具有设置成面对荧光屏并具有用于电子束通过的孔的荫罩的彩色阴极射线管和用于加强荫罩周边的加强框架的磁屏蔽包括磁性材料条，每个磁性材料具有 固定在框架上的第一端和靠近电子枪设置的第二端。 由于细长的形状，条带只能沿其长度的方向容易地被磁化。 结果，减小或消除了平行于条带并因此与管轴平行的外部磁场。 此外，如果每个条带在其第二端附近弯曲，使得第二端指向包含管轴线的水平平面，则增强了朝向第二端的方向的外部磁场。 这将进一步减小电子束路径在水平方向上的偏差。