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7312565 |
Color cathode ray tube apparatus
In the vicinity of an end on the side of a large diameter portion of a deflection device, a pair of first permanent magnets for converging three electron beams in an X-axis direction and a pair of...
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6943490 |
Deflection yoke with improved deflection sensitivity
A deflection yoke mounted on a rear portion of a cathode ray tube (CRT) to deflect an electron beam emitted from an electron gun of the CRT includes a coil separator mounted on the CRT, a...
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6696907 |
Core for deflection yoke and its production method
A deflecting yoke core with which magnetic saturation is prevented by optimizing the relationship between the core sectional area and the density of the magnetic flux distribution. The deflecting...
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6646372 |
Deflection yoke
A deflection yoke having a capability of correcting a lateral inner pincushion distortion with a magnetic field generated by a deflecting coil itself is provided. The deflection yoke includes a...
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6621203 |
Deflection unit for in-line type cathode ray tubes having grooves separated by groove walls including a thickened groove wall section
The present invention relates to a deflection unit for mounting on an in-line type cathode ray tube comprising a coil body including grooves for receiving wound coil wires, the grooves extending...
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6580208 |
Deflection unit for color cathode ray tubes
The present invention refers to a deflection unit for mounting on a color cathode ray tube, an associated tube and a corresponding display apparatus. The deflection unit comprises a pair of coils...
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6559588 |
Deflection yoke
A deflection yoke for CRTs, designed to easily correct a misconvergence in a vertical direction of a frame without being rotated during a frame correction step, is disclosed. The deflection yoke...
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6403956 |
Temperature compensation for miniaturized magnetic sector
Temperature compensation for a magnetic sector used in mass spectrometry. A high temperature dependant magnetic sector is used. This magnetic sector is compensated by a magnetic shunt that has...
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6369500 |
Shield from earth magnetic field, for neck of cathode ray tube
A device for shielding the earth magnetic field permeating through a neck of a cathode ray tube (CRT) to improve purity, raster and convergence characteristics in the CRT. The device for shielding...
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6346769 |
Electron beam deflection device for cathode ray tube
An electron beam deflection device for a cathode ray tube in which the power for deflecting an electron beam may be reduced easily and convergence may be adjusted easily. The electron beam...
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6259196 |
CRT deflection-defocusing correcting member therefor, a method of manufacturing same member, and an image display system including same CRT
A cathode ray tube including an electron gun including a cathode and a plurality of electrodes and for generating an electron beam, a phosphor screen and an electron beam deflection device. The...
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6255770 |
Corona resistant saddle-shaped deflection coil
In a deflection yoke employing a saddle-shaped deflection coil of a bobbin-winding type, a fusion layer for fusing at least those wires of the coil disposed in proximity to each other is provided...
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6069438 |
Color cathode ray tube with convergence magnet
A color CRT including an envelope having a tube axis (Z) and including panel (21) having an inner surface on which a phosphor screen (23) is formed, a funnel (22) connected to the panel (21) and...
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6031327 |
Deflection yoke having net shaped correction projections
A deflection yoke for use in a cathode ray tube is disclosed for overcoming a deflection yoke noise problem due to the vibration of a correction projection and simultaneously controlling in an easy...
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5959392 |
Cancellation coil arrangement for reducing stray magnetic field emissions from CRT displays
A cathode ray tube display comprises a cathode ray tube (10) having a screen (11) connected to a neck portion (12) via a bell portion (13). Cancellation coil means (160,160') are arranged to...
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5864204 |
Supplementary coil of deflection yoke for Braun tube
Disclosed is a supplementary coil of a deflection yoke for a Braun tube. The supplementary coil forms a magnetic field of a pin-cushion type at a screen portion and a magnetic field of a barrel...
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5854532 |
Deflection yoke device with improved color shift properties
A deflection yoke device includes vertical deflection coils wound on a pair of cores, respectively, and a pair of horizontal deflection coils each having two longitudinal portions connected to a...
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5853521 |
Multi-cathode electron beam plasma etcher
A multi-cathode electron beam plasma etcher is disclosed. The multi-cathode electron beam plasma etcher is comprised of: a vacuum chamber; several cathodes which are installed in the upper end of...
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5818317 |
Deflection yoke
A deflection yoke having upper and lower magnets located at upper and lower positions of the funnel side of a cathode-ray-tube, for correcting upper and lower pin-cushion distortions. The upper and...
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5786661 |
Ferrite core with concave and convex portions
A ferrite core for a deflection yoke of a CRT includes concave and convex portions for correcting a raster distortion of the deflection yoke by varying a magnetic path at one end of a screen...
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5777429 |
Device for correction of negative differential coma error in cathode ray tubes
A device for correction of negative differential coma error in convergence free deflection yokes. The deflection yoke encloses a portion of a cathode ray tube, including a portion of the cathode...
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5757122 |
Magnet assembly for a color ray tube
A magnet assembly for a CRT, installed in the outer periphery of a neck portion incorporating an electron gun for emitting R, G and B electron beams for converging the electron beams on the center...
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5747924 |
Picture distortion correcting apparatus
There is provided a picture distortion correcting apparatus for correcting substantially improves a magnetic field correcting effect in which a special picture distortion corrected even when the...
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5514931 |
Apparatus for displaying video images
An apparatus for displaying video images. A video image display apparatus including a cathode ray tube device for producing a plurality of electron beams each corresponding to a respective color...
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5506482 |
Magnetic focusing system with improved symmetry and manufacturability
A magnetic focusing system has a pair of disc-shaped pole pieces between which several permanent rod magnets are mounted, their north poles in contact with one pole piece and their south poles in...
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5479144 |
Multipole connector for accelerator magnet ends
A method and apparatus for correcting harmonics (multipoles) in high energy particle accelerators using superconducting magnets using corrector rods adjacent to accelerator magnets. In such...
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5404204 |
Display tube including a deflection unit
Display tube including a deflection unit which comprises a coil support (8), a field deflection coil (12), a line deflection coil (11) and a yoke ring (14). Plate-shaped metal field correction...
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5382875 |
Stray magnetic field suppresser for CRT image displays
A stray magnetic field suppression system for use in a CRT image display suppresses a stray magnetic field that emanates from the horizontal deflection coil of a beam-deflecting yoke which is...
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5376865 |
Non-linear yoke assembly and cathode ray tube system for correction of image geometrical distortions
An improved cathode ray tube yoke assembly and cathode ray tube system is capable of reducing or eliminating cathode ray tube geometrical image distortions caused by an inherent non-linear...
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5345207 |
Magnet configuration with permanent magnets
The invention relates to a magnet configuration with permanent magnets (5, 6) around a yoke (2, 3, 4) connecting these permanent magnets (5, 6). The magnetic field strength of this magnet...
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5250876 |
Display tube and deflection unit suitable for such a display tube
A display tube comprising a deflection unit having a field deflection coil 12 and a line deflection coil 11. Field-guiding elements 17 and 18 are arranged between the field deflection coil 12 and...
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5206559 |
Cathode ray tube which improves deflection aberration
In a cathode ray tube, a first pair of permanent magnet pieces are arranged along a horizontal direction and fixed on an end portion of a deflection unit at an electron gun side in such a manner...
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5192935 |
Attachment structure of a magnetic piece of a deflection yoke
The invention relates to an attachment structure of a magnetic piece of a defection yoke to be fixed to the center of a coil separator, and the invention is constructed such that a center...
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5179319 |
Deflection yoke for a color CRT
A conventional pair of magnetic members which conduct a leakage magnetic field from a vertical deflection coil, and which generate an auxiliary magnetic field for correction in a pincushion on the...
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5107238 |
Magnetic cladding for use in periodic permanent magnet stacks
Periodic permanent magnet (PPM) stacks for use in wigglers and traveling e tubes having magnetic cladding. A variable magnetic potential cladding along the adjacent surfaces of working magnets is...
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5099217 |
Constant gap cladded twister
A cladded magnet twister device for a microwave/millimeter wave source is comprised of a plurality of polygonal similarly magnetized magnet segments. Each magnet segment is displaced radially in...
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5089798 |
Apparatus for generating uniform magnetic field using small diameter spherical metallic members provided on magnetic poles
Two disc shaped permanent magnets are provided within a yoke structure in a manner to face one another. Two pole pieces are disposed on the surfaces of the two magnets respectively. Small spherical...
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5079531 |
Geometry correction device for cathode ray tubes
A deflection yoke arrangement with geometry correction includes horizontal and vertical deflection coils for scanning a raster pattern on a phosphor screen of a cathode ray tube. A support housing...
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5065186 |
Magnetic emissions reduction apparatus and method
An special arrangement of the magnetic components of a horizontal sweep output circuit to reduce the net flux density and magnetic induction that are present at the exterior of a video display. The...
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5055812 |
Compensation for magnetic nonuniformities of permanent magnet structures
A permanent magnet structure comprising a longitudinally extending flux sce fabricated of magnetically rigid material. The flux source comprises a central cavity with a magnetic field being...
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5017900 |
Deflection yoke
A deflection yoke is constructed of a truncated conical hollow core, a pair of saddle-shaped horizontal deflection coils disposed inside the core, and a pair of toroidal vertical deflection coils...
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4998041 |
Deflection yoke with cross-arm structure to reduce beam mis-landing
A deflection yoke which includes a vertical deflection coil, a horizontal deflection coil, and a coil separator for supporting the vertical and horizontal deflectors. The deflection yoke further...
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4972519 |
Vertical coma correction arrangement
An assembly that includes four separate tabs is used for producing from a stray magnetic field flux, a pincushion shaped field in a portion of the neck of a cathode ray tube that is located at the...
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4939415 |
Deflection yoke
A deflection yoke to be used in a color CRT apparatus having an aspherical face panel (30) has a pair of magnetic members (6,7) disposed on an outer surface of a larger diameter part of a cone...
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4939414 |
Color cathode ray tube with magnetic field conducting plates within envelope
An improved picture sensitivity to the magnetic field produced by a field deflection coil (28) for an in-line gun shadow mask display tube is obtained by positioning magnetic field conducting...
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4933596 |
Deflection yoke with compensation for misconvergence by the horizontal center raster
In a deflection yoke for a color cathode-ray tube having an electron gun assembly for generating a plurality of electron beams which are directed longitudinally to converge substantially at the...
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4894593 |
Method of correcting electron beam misconvergence in a color display tube and a color display tube system
A method of post deflection correction of electron beam misconvergence in a color display tube, the method comprising: providing at least one permanently magnetizable substantially annular element...
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4874983 |
Picture display system including a deflection unit with a double saddle coil system
Self-convergent picture display system with a color display tube and an electromagnetic deflection unit including a field deflection coil and a line deflection coil which are both of the saddle...
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4794300 |
Colour picture tube including a deflection unit having picture balance correction means
A deflection unit for a color television picture tube having in the neck thereof an electron gun system for producing a central electron beam coplanar with two outer electron beams. The deflection...
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4789806 |
Cathode ray tube deflection unit comprising means for compensating for misalignment of the line and field deflection coil systems
A cathode ray tube deflection unit comprising a field coil system with two diametrically opposite field deflection coils and a line coil system with two diametrically opposite line deflection...
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