1.
    发明专利
    未知

    公开(公告)号:PL231883A1

    公开(公告)日:1982-01-04

    申请号:PL23188381

    申请日:1981-06-26

    Applicant: RCA CORP

    Abstract: A CRT comprises a deflection-and-focus color-selection masking structure, a screen of parallel phosphor stripes, and means for producing three convergent in-line electron beams directed towards the target. The masking structure comprises a metal masking plate having two major surfaces and having therein an array of apertures arranged in columns that are substantially parallel to the phosphor stripes. Arrays of narrow conductors are insulatingly supported in opposed positions on each major surface of said plate. The conductors extend substantially parallel to the stripes and are located in every other space between the columns.

    ELECTRON GUN WITH IMPROVED BEAM FORMING REGION

    公开(公告)号:CA1174263A

    公开(公告)日:1984-09-11

    申请号:CA398411

    申请日:1982-03-16

    Applicant: RCA CORP

    Abstract: RCA 76,536 An electron gun for use in a cathode ray tube which may be incorporated in a television receiver includes beam forming electrodes and beam focusing electrodes. A gun improvement comprises the beam forming electrodes including a cathode, a control grid adjacent to the cathode and two screen grids. A first screen grid is located adjacent to the control grid. A second screen grid is located between the first screen grid and the beam focusing electrodes. Preferably, the second screen grid and the control grid are electrically grounded. Also preferably, the first screen grid is electrically excited to a higher potential than the second screen grid.

    3.
    发明专利
    未知

    公开(公告)号:DD160024A5

    公开(公告)日:1983-04-20

    申请号:DD23119581

    申请日:1981-06-26

    Applicant: RCA CORP

    Abstract: A CRT comprises a deflection-and-focus color-selection masking structure, a screen of parallel phosphor stripes, and means for producing three convergent in-line electron beams directed towards the target. The masking structure comprises a metal masking plate having two major surfaces and having therein an array of apertures arranged in columns that are substantially parallel to the phosphor stripes. Arrays of narrow conductors are insulatingly supported in opposed positions on each major surface of said plate. The conductors extend substantially parallel to the stripes and are located in every other space between the columns.

    COLOR TELEVISION PICTURE TUBE WITH COLOR-SELECTION STRUCTURE AND METHOD

    公开(公告)号:CA1138515A

    公开(公告)日:1982-12-28

    申请号:CA364343

    申请日:1980-11-12

    Applicant: RCA CORP

    Abstract: RCA 74,032 A novel CPT, i.e., color television picture tube, comprises a deflection-and-focus color-selection masking structure, a screen of parallel phosphor stripes, and means for producing three convergent in-line electron beams directed towards the target. When the CPT is operated, pairs of beamlets transmitted through windows in adjacent apertures in the masking structure are deflected towards one another to excite the same phosphor stripe and, also, are focused (compressed) in the narrow width direction of the phosphor stripes and defocused (stretched) in the length direction of the phosphor stripes.

    CTYRPOLOVE ZAOSTROVACI ZARIZENI SELEKCE BAREV PRO BAREVNOU TELEVIZNI OBRAZOVKU

    公开(公告)号:CS432081A2

    公开(公告)日:1984-06-18

    申请号:CS432081

    申请日:1981-06-10

    Applicant: RCA CORP

    Abstract: CRT comprises a color-selection structure for producing a plurality of quadrupolar lenses, each lens defining a window for passing and focusing portions of electron beams to an associated color group of a target. The color-selection structure comprises (i) a metal masking plate having therein an array of substantially rectangular windows, each window having associated therewith (ii) a pair of first conductors insulatingly spaced from one major surface of the plate and located adjacent opposite sides of the aperture and (iii) a pair of second conductors insulatingly spaced from the other major surface of the plate and located adjacent opposte sides of the window. The CRT includes means for applying a voltage to said plate, means for applying a voltage to said pairs of first conductors and means for applying a voltage to said pairs of second conductors.

    ELECTRON GUN OF CATHODE-RAY TUBE,ESPECIALLY FOR TV RECEIVER

    公开(公告)号:PL236219A1

    公开(公告)日:1983-01-17

    申请号:PL23621982

    申请日:1982-04-29

    Applicant: RCA CORP

    Abstract: An electron gun for use in a cathode ray tube includes beam forming electrodes and beam focusing electrodes. A gun improvement comprises the beam forming electrodes including a cathode, a control grid adjacent to the cathode and two screen grids. A first screen grid is located adjacent to the control grid. A second screen grid is located between the first screen grid and the beam focusing electrodes. Preferably, the second screen grid and the control grid are grounded.

    MULTICOLOR CATHODE-RAY TUBE WITH QUADRUPOLAR FOCUSING COLOR-SELECTION STRUCTURE

    公开(公告)号:CA1170704A

    公开(公告)日:1984-07-10

    申请号:CA379612

    申请日:1981-06-12

    Applicant: RCA CORP

    Abstract: RCA 74,340 CRT comprises a color-selection structure for producing a plurality of quadrupolar lenses, each lens defining a window for passing and focusing portions of electron beams to an associated color group of a screen. The color-selection structure comprises (i) a metal masking plate having therein an array of substantially rectangular apertures, each aperture having associated therewith (ii) a first pair of conductors insulatingly spaced from one major surface of the plate and located adjacent opposite sides of the aperture and (iii) a second pair of conductors insulatingly spaced from the other major surface of the plate and located adjacent opposite sides of the aperture. The CRT includes means for applying a voltage to the plate, means fox applying a voltage to the first pairs of conductors and means for applying a voltage to the second pairs of conductors.

    9.
    发明专利
    未知

    公开(公告)号:DD159921A5

    公开(公告)日:1983-04-13

    申请号:DD23095581

    申请日:1981-06-19

    Applicant: RCA CORP

    Abstract: CRT comprises a color-selection structure for producing a plurality of quadrupolar lenses, each lens defining a window for passing and focusing portions of electron beams to an associated color group of a target. The color-selection structure comprises (i) a metal masking plate having therein an array of substantially rectangular windows, each window having associated therewith (ii) a pair of first conductors insulatingly spaced from one major surface of the plate and located adjacent opposite sides of the aperture and (iii) a pair of second conductors insulatingly spaced from the other major surface of the plate and located adjacent opposte sides of the window. The CRT includes means for applying a voltage to said plate, means for applying a voltage to said pairs of first conductors and means for applying a voltage to said pairs of second conductors.

    10.
    发明专利
    未知

    公开(公告)号:DD154650A5

    公开(公告)日:1982-04-07

    申请号:DD22538380

    申请日:1980-11-21

    Applicant: RCA CORP

    Abstract: CPT comprises a deflection-and-focus color-selection masking structure, a screen of parallel phosphor stripes, and means for producing three convergent in-line electron beams directed towards the target. When the CPT is operated, pairs of beamlets transmitted through windows in adjacent apertures in the masking structure are deflected towards one another to excite the same phosphor stripe and, also, are focused (compressed) in the narrow width direction of the phosphor stripes and defocused (stretched) in the length direction of the phosphor stripes.

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