• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A color picture tube having a cathodoluminescent screen, electron gun and a slit type apertured mask located between the screen and gun, wherein the slits in such mask are arranged in columns and the slits in each column are separated by webs, has an improved web configuration. Alternate webs within a column are of lesser thickness than the general mask thickness with the geometric center of the alternate webs being offset toward the screen side of the mask.
    公开号:SU1304760A3
    申请号:SU803217963
    申请日:1980-12-14
    公开日:1987-04-15
    发明作者:Ли Робертс Дональд
    申请人:Рка Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a color television technique, in particular to color picture tubes with slit shadow masks.
    The purpose of the invention is to increase the electronic transmittance of the shadow mask of a color kinescope by reducing the thickness of the bridges between the gaps of the mask.
    Figure 1 shows the general scheme of a color kinescope 5 in Figures 2 and 3 — variants of a constructive implementation of a shadow mask.
    The color kinescope (FIG. 1) contains a flask 1 with front glass 2 and neck 3 connected by a conical part 4о. A three-colored mosaic cathodoluminescent screen 5 is applied to the inner surface of the front glass 2. The shadow mask 6 is set at a specified distance from the screen 5. In the neck 3 an electronic spotlight 7 is placed, and a deflection system 8 is installed in the region where the neck is connected to the conical part of the bulb.
    Shadow mask 6 is made (Fig. 2) with openings in the form of slits 9, which are separated from each other by bridges 10. Alternate bridges 11 are reduced in thickness from the side of the electronic searchlight to at least half of the cross section of bridges at a constant length slots In another embodiment of the invention, the second alternating jumpers 12 located between the first 11 (Fig. 3) can also be reduced in thickness, but from the side of the screen of the kinescope.
    Reducing the thickness of the jumpers of the camiso in accordance with the invention of PVZ
    It is possible to increase the current transmittance of the mask, which follows from a comparison of the effective thicknesses A and & respectively, incomplete and reduced in thickness jumpers, as well as preserve the necessary strength and stability of the mask shape. At the same time, there is no deterioration in the color purity, which is affected by the location of the jumpers, and the effect of increasing the current transmission is manifested even in the central region of the mask.
    权利要求:
    Claims (2)
    [1]
    1. A color kinescope containing an electronic spotlight, a cathodoluminescent screen and a slit-type shadow mask located between the electronic spotlight and the cathodoluminescent screen, with the mask slots arranged by vertical columns and separated by jumpers inside each column, characterized in that In order to increase the electronic transmittance, inside each column alternating bridges are reduced in thickness from the side of the electronic searchlight to at least half of the cross section area emychek at a constant length of the slots.
    i
    [2]
    2. The color kinescope of claim 1, which is characterized by the fact that the second alternating jumpers located between the first alternating jumpers are reduced in thickness to the same magnitude on the side of the cathodolinescent screen.
    / /
    rf
    P
    fig.Z
    类似技术:
    公开号 | 公开日 | 专利标题
    SU495851A3|1975-12-15|TV receiver for color television
    KR940022641A|1994-10-21|Shadow masks for color cathode ray tubes with holes arranged at variable array pitches not monotonically reduced, and color cathode ray tubes with this shadow mask
    KR920005903B1|1992-07-24|Cathode-ray tube
    GB1071879A|1967-06-14|Making colour-phosphor mosaic screens
    SU1304760A3|1987-04-15|Colour kinescope
    SU1176859A3|1985-08-30|Aperture mask for colour picture tube
    US4556819A|1985-12-03|Color picture tube having inline electron gun with coma correction members
    US4599533A|1986-07-08|Color picture tube having shadow mask frame with truncated corners
    SU1461377A3|1989-02-23|Colour kinescope
    SU1145942A3|1985-03-15|Shadow mask for colour kinescope
    US4300070A|1981-11-10|Cathode-ray tube screen border improvement
    SU1170980A3|1985-07-30|Cathode-ray tube
    KR0165059B1|1998-12-15|Cathode ray tube
    CA1237466A|1988-05-31|Color picture tube having improved line screen
    US4691138A|1987-09-01|Color picture tube having shadow mask with varied aperture column spacing
    US2863079A|1958-12-02|Masking devices for color television screen or the like
    CA2067111A1|1991-04-26|Segmented shadow mask support structure and process for flat tension mask color cathode ray tubes
    KR840000618B1|1984-04-28|Color picture tube having improved slit type shadow mask
    CA1142570A|1983-03-08|Color picture tube having improved slit typeshadow mask and method of making same
    KR900005932B1|1990-08-16|Color picture tube having improved shadow mask
    KR100347408B1|2002-08-03|Method for making colour television tubes with a combination of electron guns
    JPH11329280A|1999-11-30|Color picture tube provided with shadow mask having improved mask aperture array interval
    KR200183347Y1|2000-06-01|Panel structure for cathode ray tube
    JPS60175347A|1985-09-09|Mask focusing type color picture tube
    GB2217516A|1989-10-25|Exposure device for forming phosphor deposited screen in in-line cathode ray tube
    同族专利:
    公开号 | 公开日
    IT8026040D0|1980-11-17|
    MX147323A|1982-11-10|
    PL228529A1|1981-08-21|
    GB2067827B|1983-11-02|
    DD155464A5|1982-06-09|
    IT1194719B|1988-09-22|
    FR2472261B1|1985-11-29|
    FI803857L|1981-06-19|
    GB2067827A|1981-07-30|
    JPS5693249A|1981-07-28|
    CA1138516A|1982-12-28|
    BR8008055A|1981-06-23|
    DE3047610C2|1986-07-17|
    PL135035B1|1985-09-30|
    US4293792A|1981-10-06|
    DE3047610A1|1981-09-10|
    FR2472261A1|1981-06-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPS513733Y2|1972-01-19|1976-02-03|
    JPS519264B2|1972-05-30|1976-03-25|
    JPS4965779A|1972-10-27|1974-06-26|
    JPS5030463A|1973-07-19|1975-03-26|
    US3944867A|1974-03-15|1976-03-16|Zenith Radio Corporation|Shadow mask having ribs bounding rectangular apertures|
    US3916243A|1974-09-20|1975-10-28|Buckbee Mears Co|Channeled shadow mask|
    US4048536A|1976-03-18|1977-09-13|Buckbee-Mears Company|Shadow mask with plurality of recessed regions extending across mask in two directions|
    JPS5310961A|1976-07-19|1978-01-31|Hitachi Ltd|Color picture tube|
    JPS5396664A|1977-02-04|1978-08-24|Hitachi Ltd|Color selecting electrode|
    JPS6011419B2|1978-04-17|1985-03-26|Tokyo Shibaura Electric Co|
    GB2020892A|1978-05-10|1979-11-21|Rca Corp|C.R.T. Silt Type Shadow Mask|CA1175876A|1980-05-12|1984-10-09|Roland Thoms|Television picture tubes and hole technology|
    US4632726A|1984-07-13|1986-12-30|Bmc Industries, Inc.|Multi-graded aperture mask method|
    JPH07105205B2|1988-02-02|1995-11-13|大日本スクリーン製造株式会社|Slot type shadow mask and manufacturing method thereof|
    US5079477A|1988-02-02|1992-01-07|Dainippon Screen Mfg. Co., Ltd.|Slot type shadow mask|
    JP2002197989A|2000-12-25|2002-07-12|Toshiba Corp|Color picture tube|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/104,828|US4293792A|1979-12-18|1979-12-18|Color picture tube having improved slit type shadow mask|
    [返回顶部]