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    14.
    发明专利
    未知

    公开(公告)号：DE1907010A1

    公开(公告)日：1969-09-11

    申请号：DE1907010

    申请日：1969-02-12

    Applicant: SONY CORP

    Inventor： MAEDA MAKOTO

    IPC: H01J29/80 ,  H01J29/06

    Abstract: 1,248,532. Making grids for cathode-ray tubes. SONY CORP. 12 Feb., 1969 [12 Feb., 1968], No. 7735/69. Heading B3A. [Also in Division H1] A grid in a colour television tube comprises a number of parallel elongate elements 13 shaped to provide apertures 17 which are wide in the centre and taper at the ends, the apertures having a width in microns given by the equation 122 - αx 2 - #y 2 where x and y are space coordinates and α and # are constants; this reduces microphony, increases the luminance at the centre of the screen, and reduces the effect of the earth's magnetic field. In manufacture, the apertures 17 are made by photo-etching a stainless steel plate which is provided at its edges with a pair of slits 14 opposite every third aperture 17. The tabs 16 formed between the slits 14 are gripped between opposed chucks (Fig. 2, not shown) individually tensioned to produce a desired pattern of pre-tension in the grid elements 13 to reduce the effect of thermal expansion. Support bars are welded to the plate, after which the tabs 16 projecting beyond the support bars are cut off, and the edges of the plate may be cut off at the wide slot 15 provided at each side of the plate. In one example the pitch of the apertures 17 is 600 microns, and the phosphor strips of the screen arranged behind the grid are 210 microns wide.

    CATHODE-RAY TUBE
    15.
    发明专利
    CATHODE-RAY TUBE 失效

    公开(公告)号：JPH11250819A

    公开(公告)日：1999-09-17

    申请号：JP5024498

    申请日：1998-03-03

    Applicant: SONY CORP

    Inventor： NAKAMURA HIROSHI ,  MAEDA MAKOTO

    IPC: H01J29/04

    Abstract: PROBLEM TO BE SOLVED: To reduce the loss in a heater for heating thermionic emissive substance. SOLUTION: One end of each of three strap-like sleeve supporting pieces 23 is secured to a cylindrical cathode sleeve 18 provided with a cathode 21 at the end thereof and into which a heater for heating the cathode 21 is inserted. The other end of each of the sleeve supporting pieces 23 is secured to a cylindrical holder 25 having low heat conductivity via a ring-like support member 24.

    FLUORESCENT CHARACTER DISPLAY TUBE
    16.
    发明专利
    FLUORESCENT CHARACTER DISPLAY TUBE 失效

    公开(公告)号：JPH01246750A

    公开(公告)日：1989-10-02

    申请号：JP7493588

    申请日：1988-03-29

    Applicant: SONY CORP

    Inventor： MAEDA MAKOTO ,  HAYASHI MASAYASU

    IPC: H01J31/15 ,  H01J63/06

    Abstract: PURPOSE:To arrange a fluorescent character display tube such that electron beams are extended towards a peripheral wall, fluorescent area is increased and space between emitter segments narrows so as to improve resolution by making a partition wall of a separator electrode in the portion adjacent to the peripheral wall of a tube higher than other wall faces. CONSTITUTION:Among the wall faces of a separator electrode 19, a projected walls 19B adjacent to a peripheral wall 13 of a fluorescent character display panel are made higher than other partition walls. Electron beams are thus extended towards the wall 13 and emitter segments can be provided in the portion adjacent to the wall 13. Therefore, space between emitter segments can narrows and resolution is improved in case if displaying on a large screen.

    COLOR CATHODE-RAY TUBE DEVICE OF BEAM INDEX TYPE
    17.
    发明专利
    COLOR CATHODE-RAY TUBE DEVICE OF BEAM INDEX TYPE 失效

    公开(公告)号：JPS6276139A

    公开(公告)日：1987-04-08

    申请号：JP21579485

    申请日：1985-09-28

    Applicant: SONY CORP

    Inventor： KATO HIROSHI ,  MAEDA MAKOTO ,  SAITO REIKO

    IPC: H01J29/34 ,  H01J29/28

    Abstract: PURPOSE:To achieve increased luminous efficiency by providing a metallic reflection film having a flat surface between an index phosphor layer and color phosphor stripes. CONSTITUTION:A metallic reflection film 17 having a flat surface is provided between an index phosphor layer 16 and color phosphor stripes. When the fluo rescent screen is scanned by an electron beam from an electron gun structure 19, the index phosphor layer 16 is excited with the electron beam transmitted by the metallic reflection film 17 to emit light. But, the emitted light is shielded by a light-shielding layer 15 and only light emitted from the areas 16i of the layer 15 becomes incident upon a light-receiving plate 21 as index light through a screen panel 12 to act as phosphor stripes (I). The light emitted near the screen panel 12 becomes incident upon the light-receiving plate 21 directly through the screen panel 12. The light emitted near a front panel 11 excluding light transmitted by the metallic reflection film 17 is reflected by the film 17 and then becomes incident upon the light-receiving plate 21 efficiently through the screen panel 12.

    Flat-type crt
    18.
    发明专利
    Flat-type crt 失效
    平板式CRT

    公开(公告)号：JPS5956346A

    公开(公告)日：1984-03-31

    申请号：JP2564083

    申请日：1983-02-18

    Applicant: Sony Corp

    Inventor： SUMIYOSHI HIROJI ,  MAEDA MAKOTO ,  AOYAMA TAKASHI

    IPC: H01J29/86 ,  H01J31/12

    CPC classification number: H01J31/124

    Abstract: PURPOSE:To make a CRT easy to produce and suitable for mass production by forming it with a screen panel, a front panel and a funnel. CONSTITUTION:A panel section 2 is constituted with a front panel 2a on the front side uniformly divided in two at the vertical face and a screen panel 2b with a fluorescent screen 3. At this time, the front 2a and screen panel 2b have a cross section with nearly a U-shape and curved toward one direction and symmetrical on the left and right with respect to a vertical plane passing through the a-a line. Two of the same glass panel 2a are combined to form an outer wall shape symmetrial with respect to two planes crossing at a right angle respectively and constitute a female mold. Melted glass is depressed to two planes with glass panels 2a combined to cross at a righ angle respectively so as to form a predetermined symmetrical shape, glass press-molded, cut off with a glass cutter to obtain two glass panels. Both end faces are frit-sealed to form the panel section 2, and the end face with the funnel section 4 is welded by a frit seal.

    Abstract translation: 目的：通过用屏幕面板，前面板和漏斗形成CRT，使CRT容易生产并适合批量生产。 构成：面板部2由正面侧的前面板2a，垂直面均匀分割成两面，屏幕面板2b由荧光屏3构成。此时，前面2a和屏幕面板2b具有十字 截面具有近似U形并且朝向一个方向弯曲并且相对于穿过aa线的垂直平面在左右对称。 两个相同的玻璃面板2a组合成相对于分别以直角交叉的两个平面形成对称的外壁形状并构成阴模。 熔融玻璃被压在两个平面上，玻璃面板2a组合成分别横过角度，以形成预定的对称形状，玻璃压制成型，用玻璃切割机切割，以获得两个玻璃面板。 两个端面被玻璃料密封以形成板部分2，并且通过玻璃料密封焊接具有漏斗部分4的端面。

    CATHODE-RAY TUBE
    20.
    发明专利
    CATHODE-RAY TUBE 失效

    公开(公告)号：JP2001135260A

    公开(公告)日：2001-05-18

    申请号：JP31900699

    申请日：1999-11-10

    Applicant: SONY CORP

    Inventor： MAEDA MAKOTO ,  MURATA AKIO

    IPC: H01J29/76

    Abstract: PROBLEM TO BE SOLVED: To prevent shape specifying of a square cone part or corresponding deflection coil and core of the deflection yoke from becoming complicate, when the square cone part is adopted for the bulb of a cathode-ray tube to save power consumption. SOLUTION: In this cathode-ray tube equipped with a bulb of cathode-ray tube, having a square cone portion and a deflection yoke that mounts on the square core portion of the cathode-ray tube bulb and has deflecting coils and cores, shape prescription of each composing element is simplified by defining the cross-sectional shape, when a virtual plane normal to the central axis of cathode-ray tube with a super ellipse equation expressed by (X/a)k+(X/b)k=1, wit respect to at least one of respective composing elements: the square-shape cone portion, deflection coils and cores.

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