-
公开(公告)号：CA1191883A
公开(公告)日：1985-08-13
申请号：CA428952
申请日：1983-05-26
Applicant: RCA CORP
Inventor： GROSS JOSEF , BARKOW WILLIAM H , MIRSCH JOHN W
Abstract: A self-converging color television display system utilizes a saddle-toroid deflection yoke. The length (a) of the horizontal coil conductors adjacent the flared picture tube portion is limited to reduce stored energy. The length of the core (17) also is limited and disposed longitudinally between the end turns of the horizontal saddle coils (18) at a position to mitigate convergence trilemma as well as North-South pincushion distortion. Reference Numerals Are From Figure 3.
-
公开(公告)号：AU545552B2
公开(公告)日：1985-07-18
申请号：AU7023381
申请日：1981-05-07
Applicant: RCA CORP
Inventor： BARKOW WILLIAM HENRY , GROSS JOSEF
Abstract: A self-converging deflection yoke having toroidally-wound vertical deflection coils incorporates a pair of magnetically permeable field formers mounted on either side of the yoke. The field formers shunt a portion of the external field flux to the vicinity of the electron gun assembly where they form a pincushion-shaped field which aids in vertical coma correction. In one embodiment, a yoke comprising planar-wound vertical coils incorporates both coma-correcting rear field formers and a pair of front crossarm assemblies for providing side-pincushion correction. The resultant yoke provides covergence of electron beams free of coma and side-pincushion distortion with reduced sensitivity to transverse motion. In another embodiment, similar results are obtained without the front crossarms by vertical deflection coil having a nonradial winding configuration.
-
公开(公告)号：CA1159874A
公开(公告)日：1984-01-03
申请号：CA376585
申请日：1981-04-30
Applicant: RCA CORP
Inventor： BARKOW WILLIAM H , GROSS JOSEF
Abstract: RCA 75,226 A self-converging deflection yoke having toroidally-wound vertical deflection coils incorporates a pair of magnetically permeable field formers mounted on either side of the yoke. The field formers shunt a portion of the external field flux to the vicinity of the electron gun assembly where they form a pincushionshaped field which aids in vertical coma correction. In one embodiment, a yoke comprising planar-wound vertical coils incorporates both coma-correcting rear field formers and a pair of front crossarm assemblies for providing side-pincushion correction. The resultant yoke provides covergence of electron beams free of coma and sidepincushion distortion with reduced sensitivity to transverse motion. In another embodiment, similar results are obtained without the front crossarms by vertical deflection coil having a nonradial winding configuration.
-
公开(公告)号：FI831908L
公开(公告)日：1983-12-05
申请号：FI831908
申请日：1983-05-27
Applicant: RCA CORP
Inventor： GROSS JOSEF , BARKOW WILLIAM HENRY , MITSCH JOHN WALTER
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.
-
公开(公告)号：FI62919C
公开(公告)日：1983-03-10
申请号：FI751396
申请日：1975-05-13
Applicant: RCA CORP
Inventor： BARKOW WILLIAM HENRY , GROSS JOSEF
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.
-
Patent Agency Ranking
公开(公告)号：HU179052B
公开(公告)日：1982-08-28
申请号：HURA000580
申请日：1972-12-06
Applicant: RCA CORP
Inventor： GROSS JOSEF , BARKOW WILLIAM H
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.
-
公开(公告)号：YU9073A
公开(公告)日：1982-06-18
申请号：YU9073
申请日：1973-01-12
Applicant: RCA CORP
Inventor： MAXWELL MORRELL ALBERT , MORRELL ALBERT MAXWELL , HENRY BARKOW VILLIAM , BARKOW VILLIAM HENRY , JOSEF GROSS , GROSS JOSEF
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.
-
公开(公告)号：FR2484696A1
公开(公告)日：1981-12-18
申请号：FR8109533
申请日：1981-05-13
Applicant: RCA CORP
Inventor： BARKOW WILLIAM HENRY , GROSS JOSEF
Abstract: A self-converging deflection yoke having toroidally-wound vertical deflection coils incorporates a pair of magnetically permeable field formers mounted on either side of the yoke. The field formers shunt a portion of the external field flux to the vicinity of the electron gun assembly where they form a pincushion-shaped field which aids in vertical coma correction. In one embodiment, a yoke comprising planar-wound vertical coils incorporates both coma-correcting rear field formers and a pair of front crossarm assemblies for providing side-pincushion correction. The resultant yoke provides covergence of electron beams free of coma and side-pincushion distortion with reduced sensitivity to transverse motion. In another embodiment, similar results are obtained without the front crossarms by vertical deflection coil having a nonradial winding configuration.
-
公开(公告)号：FI811406L
公开(公告)日：1981-11-15
申请号：FI811406
申请日：1981-05-07
Applicant: RCA CORP
Inventor： BARKOW WILLIAM HENRY , GROSS JOSEF
Abstract: A self-converging deflection yoke having toroidally-wound vertical deflection coils incorporates a pair of magnetically permeable field formers mounted on either side of the yoke. The field formers shunt a portion of the external field flux to the vicinity of the electron gun assembly where they form a pincushion-shaped field which aids in vertical coma correction. In one embodiment, a yoke comprising planar-wound vertical coils incorporates both coma-correcting rear field formers and a pair of front crossarm assemblies for providing side-pincushion correction. The resultant yoke provides covergence of electron beams free of coma and side-pincushion distortion with reduced sensitivity to transverse motion. In another embodiment, similar results are obtained without the front crossarms by vertical deflection coil having a nonradial winding configuration.
-
公开(公告)号：FR2482365A1
公开(公告)日：1981-11-13
申请号：FR8018530
申请日：1980-08-26
Applicant: RCA CORP
Inventor： GROSS JOSEF , BARKOW WILLIAM HENRY
-
-
-
-
-
-
-
-
-
Search Results
89
records
(took 0.035 seconds)
