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    SELF-CONVERGING TELEVISION DISPLAY SYSTEM
    11.
    发明专利
    SELF-CONVERGING TELEVISION DISPLAY SYSTEM 未知

    公开(公告)号：ZA833804B

    公开(公告)日：1984-02-29

    申请号：ZA833804

    申请日：1983-05-25

    Applicant: RCA CORP

    Inventor： GROSS JOSEF ,  BARKOW WILLIAM HENRY ,  MIRSCH JOHN WALTER

    IPC: H01J29/76 ,  H01F

    Abstract: A self-converging color television display system utilizes a saddle-toroid deflection yoke. The length of the horizontal coil conductors adjacent the flared picture tube portion is limited to reduce stored energy. The length of the core also is limited and disposed longitudinally between the end turns of the horizontal saddle coils at a position to mitigate convergence trilemma as well as North-South pincushion distortion.

    SELF-CONVERGING TELEVISION DISPLAY SYSTEM
    12.
    发明专利
    SELF-CONVERGING TELEVISION DISPLAY SYSTEM 未知

    公开(公告)号：AU1497483A

    公开(公告)日：1983-12-08

    申请号：AU1497483

    申请日：1983-05-25

    Applicant: RCA CORP

    Inventor： GROSS JOSEF ,  BARKOW WILLIAM HENRY ,  MIRSCH JOHN WALTER

    IPC: H01J29/76

    Abstract: A self-converging color television display system utilizes a saddle-toroid deflection yoke. The length of the horizontal coil conductors adjacent the flared picture tube portion is limited to reduce stored energy. The length of the core also is limited and disposed longitudinally between the end turns of the horizontal saddle coils at a position to mitigate convergence trilemma as well as North-South pincushion distortion.

    13.
    发明专利
    未知

    公开(公告)号：FI62919B

    公开(公告)日：1982-11-30

    申请号：FI751396

    申请日：1975-05-13

    Applicant: RCA CORP

    Inventor： BARKOW WILLIAM HENRY ,  GROSS JOSEF

    IPC: H04N9/28 ,  H01J29/70 ,  H04N9/285 ,  H01J29/76

    Abstract: A large-screen wide-deflection angle color picture tube utilizes three coplanar electron beams. Convergence of horizontal lines on the picture tube viewing screen is accomplished by positioning a deflection yoke exhibiting particular astigmatism characteristics relative to the electron beams of the picture tube. Convergence of vertical lines is accomplished by energizing quadrupole magnetic field producing windings disposed about the picture tube neck at a vertical scanning rate.

    14.
    发明专利
    未知

    公开(公告)号：FI60086B

    公开(公告)日：1981-07-31

    申请号：FI1573

    申请日：1973-01-04

    Applicant: RCA CORP

    Inventor： GROSS JOSEF ,  BARKOW WILLIAM HENRY

    IPC: H01J3/02 ,  H01J29/50 ,  H01J29/51 ,  H01J29/76 ,  H01J31/20

    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 horizontal in-line coplanar beams. 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 rasters scanned by the three beams are of 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.

    15.
    发明专利
    未知

    公开(公告)号：FI58232C

    公开(公告)日：1980-12-10

    申请号：FI1673

    申请日：1973-01-04

    Applicant: RCA CORP

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

    IPC: H04N9/16 ,  H01J29/50 ,  H01J29/76

    Abstract: 1385745 Colour television tubes RCA CORPORATION 1 May 1972 [14 Jan 1972] 20047/72 Heading H1D A colour television tube of the shadow mask type using three co-planar beams, is provided with a deflection yoke adapted to produce a pin cushion shaped horizontal deflecting field which causes under convergence at extreme horizontal deflection, and a barrel-shaped vertical deflecting field which causes over-convergence at extreme vertical deflection; and the electron gun is adapted to produce a spacing between the beams at the centre of the deflection yoke not greater than 0À2 inch. Dynamic convergence arrangements are then unnecessary but may be provided for larger tubes. The electron gun may comprise three individual cathodes and common G1 to G4 electrodes provided with apertures for the beams; the outer apertures of the final electrode may be surrounded by magnetically permeable material such as nickel iron to partly screen the outer beams from the deflection fields and thereby equalize the raster sizes for the three colours. The deflection yoke is as described in Specification 1385747 and is preferaby toroidal but saddle coils may be used. The shadow mask may be provided with elongate apertures, and the fluorescent screen may comprise stripes of different colours.

    DISPLAY SYSTEM UTILIZING BEAM SHAPE CORRECTION
    16.
    发明专利
    DISPLAY SYSTEM UTILIZING BEAM SHAPE CORRECTION 未知

    公开(公告)号：CA1065383A

    公开(公告)日：1979-10-30

    申请号：CA236187

    申请日：1975-09-23

    Applicant: RCA CORP

    Inventor： BARKOW WILLIAM H ,  GROSS JOSEF

    IPC: H01J3/02 ,  H01J29/50 ,  H01J29/52 ,  H01J29/76 ,  H01J31/20 ,  H01J29/51

    Abstract: DISPLAY SYSTEM UTILIZING BEAM SHAPE CORRECTION A color picture reproducing tube utilizes three coplanar electron beams. Convergence of the three beams along at least one axis is accomplished by a deflection assembly producing a magnetic deflection field with particular astigmatism characteristics which also elliptically distorts each of the three beams in a first direction. The electron gun assembly within the picturetube includes apertured electrodes which predistort the beams elliptically in a second direction orthogonal to the first direction of distortion.

    DISPLAY COLOUR SELF-CONVERGING TELEVISION SYSTEM
    18.
    发明专利
    DISPLAY COLOUR SELF-CONVERGING TELEVISION SYSTEM 未知

    公开(公告)号：CS249501B2

    公开(公告)日：1987-03-12

    申请号：CS29573

    申请日：1973-01-12

    Applicant: RCA CORP

    Inventor： GROSS JOSEF ,  BARKOW WILIAM-H

    IPC: H01J3/02 ,  H01J29/50 ,  H01J29/51 ,  H01J29/76 ,  H01J31/20 ,  H01J29/46

    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 horizontal in-line coplanar beams. 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 rasters scanned by the three beams are of 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.

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