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4782264 |
Color picture device including convergence correcting magnetic plates
In a color picture device having a tube envelope and an in-line type electron gun assembly disposed in a neck section of the tube envelope, a deflection unit includes a pair of first deflecting...
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4746837 |
Color display tube deflection unit which corrects left-right raster distortion
A color display tube deflection unit having an annular magnetizable core of tapered cylindrical shape and a raster distortion correction device comprising four pole shoes positioned at the corners...
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4728915 |
Deflection yoke for a color cathode ray tube
A pair of magnetic member for collecting leakage magnetic flux of barrel-shaped vertical deflection magnetical flux to produce an auxiliary vertical deflection magnetic field of pin-cushion type...
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4668929 |
Deflection system for color picture tubes
In accordance with the invention, to prevent a deflection system for a color picture tube provided with an in-line gun system from causing pincushion distortions in the east-west direction on the...
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4658228 |
Confinement of longitudinal, axially symmetric, magnetic fields to annular regions with permanent magnets
A magnetic device of permanent magnet materials for the control of linearly xtending annular cross-sectioned magnetic fields formed of two concentrically nesting magnetic tubular elements defining...
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4654615 |
Raster distortion corrector for cathode ray tubes
A raster distortion corrector for a cathode ray tube includes magnetically permeable corrector pieces that are located on opposite sides of the deflection yoke. A part of each corrector piece is...
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4647887 |
Lightweight cladding for magnetic circuits
A magnetic cladding device having a constant exterior magnetic potential al to a magnetic potential at a point between either end of an active magnet for enhancing the active magnet's field and...
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4646046 |
Shielded room construction for containment of fringe magnetic fields
A shielded room for containment of magnetic fringe fields generated by a magnet which forms part of an NMR scanner system utilizes wall members having a thickness proportional to the amount of flux...
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4636684 |
Color television display apparatus having improved convergence of electron beams
A color television display apparatus comprises a color cathode ray tube (1), an electron gun apparatus (4) disposed in a neck region (2) of the color cathode ray tube (1), a deflection yoke (12)...
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4606729 |
Method of manufacturing a deflection unit for color television display tubes which is pre-adjusted for color purity
A deflection unit for a color television display tube comprising line and frame deflection coils and a magnet core cooperating with said coils can be manufactured by placing the deflection coils...
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4600858 |
Color cathode ray tube apparatus to modify deflection magnetic fields
In a cathode ray tube apparatus having an in-line type electron gun, magnetic pole pieces comprising four pole pieces of substantially arc-shaped cross section are disposed in a cylindrical shape...
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4584549 |
Magnet system
A magnet system comprises magnetic field generating means such as a superconducting magnet (12) and a shield including a number of sheets (9) of magnetic material, the size (l z , l x ) and...
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4451807 |
Television raster pincushion distortion correction device
A television receiver deflection yoke mounted on a kinescope incorporates toroidally wound vertical deflection coils which generate stray fields that undesirably interact with components of...
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4433268 |
Deflection yoke for a color cathode ray tube
A deflection yoke for a color cathode ray tube is disclosed which does not cause raster distortion and avoids electron beam convergence error. Both horizontal and vertical deflection coils generate...
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4429293 |
Pincushion raster corrector distortion with improved performance
A television display system includes a kinescope producing an electron beam and a deflection yoke for deflecting the electron beam to form a raster on a display screen of the kinescope. A field...
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4386331 |
Deflection yoke
The deflection yoke for use in the in-line type color cathode-ray tube comprises a horizontal deflection yoke, vertical deflection yoke and core, and the vertical deflection coil is an or/and...
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4376272 |
Magnetic field generators for use in electromagnetic focusing type cathode ray tubes
In a magnetic field generator mounted about a neck of a cathode ray tube for focusing an electron beam and made up of a permanent magnet, a magnetic field adjusting mechanism for adjusting field...
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4369418 |
Deflection yoke incorporating a permeable corrector
In a color television display system comprising a kinescope having in-line electron beams and a deflection yoke having saddle horizontal and toroidal vertical windings, a correcting apparatus...
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4357556 |
Television display system employing permeable correctors for a deflection yoke
A correction apparatus for a deflection yoke for use with a color television kinescope comprises a plurality of magnetically permeable rods disposed at the rear of the yoke. Each of the rods...
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4357586 |
Color TV display system
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...
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4335366 |
Color television display system having improved convergence
In a television receiver comprising a display system incorporating a kinescope having horizontal in-line electron beams and also incorporating a deflection yoke having toroidally-wound vertical...
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4307363 |
Permeable corrector for deflection yokes
In a color television receiver having an in-line electron beam kinescope and deflection yoke, a correction apparatus comprises a pair of magnetically permeable field formers located on opposite...
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4305055 |
Television display system incorporating a coma corrected deflection yoke
A television display system comprises a kinescope, deflection yoke and magnetic field influencing apparatus. The field influencing apparatus comprises a pair of magnetically permeable members...
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4257023 |
Deflecting device for cathode-ray tube
Disclosed is a deflecting device for a color cathode-ray tube which comprises a substantially tapered cylindrical core to be attached to the color cathode-ray tube, a pair of vertical deflecting...
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4237437 |
Deflection unit for color television display tubes
A deflection unit for in-line color television display tubes having a line deflection coil and a field deflection coil, the field deflection winding having a slightly pronounced barrel-shaped field...
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4198614 |
Deflection yoke assembly including a beam positioning magnet arrangement
A deflection yoke assembly includes a permanent magnet arrangement comprising first and second magnets magnetically coupled to act as a single magnet with variable strength by means of a magnetic...
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4191936 |
Image pickup assembly
An image pickup tube is rigidly centered and mounted to a coil assembly by an adjustable split-ring clamp of hard plastic material mounted to the coil assembly. The split-ring clamp when adjusted...
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4145678 |
Pickup tube structure with an improved magnetic shield
A pickup tube structure comprises an image pickup tube and a yoke assembly mounted on the pickup tube. The yoke assembly includes a magnetic shield in a specific arrangement with respect to the...
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4109220 |
Cathode ray tube assemblies
A cathode ray tube assembly including a plurality of permanent magnets to correct for pin cushion and barrel distortion has each adjustable magnet comprising at least part of a rotatable member,...
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3924210 |
Field shaping magnet structure
A magnet structure having a pair of spaced pole pieces interconnected by a reluctor circuit comprising an operatively aligned array of soft magnetic members suitably spaced apart by interposed...
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3899761 |
Colour picture tubes containing an in-line type electron gun assemblies
In an in-line type colour picture tube provided with dynamic and static convergences there is provided a pole piece assembly disposed in the plane of convergence adjustment. The pole piece assembly...
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3840765 |
SHIELDING MEMBER BETWEEN ONLY THE CONTROL AND SIDE BEAMS IN A COLOR CATHODE RAY TUBE
A color cathode ray tube has a beam convergence device for converging and compensating a central beam and a pair of side beams which have the central beam interposed therebetween. Said central and...
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3809950 |
MAGNETRON
A magnetron includes an oscillating section having an electron radiating cathode and a cylindrical anode; an output section having an antenna inserted therein; and a pair of doughnut-shaped magnets...
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3794946 |
TEMPERATURE COMPENSATED ELECTRON BEAM CONVERGENCE APPARATUS
The gap of a pair of core members of a convergence unit for a color producing cathode ray tube is provided with a U-shaped, flux permeable, temperature compensating, magnetic member extending part...
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3663907 |
BEAM CONVERGENCE EXCITER FOR SHADOW MASK COLOR PICTURE TUBE
The exciter, mounted closely behind the deflection yoke on the neck of the tube, has three pairs of external coils which are respectively associated with three pairs of internal pole pieces and are...
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3617963 |
TEMPERATURE-COMPENSATED STATIC CONVERGENCE APPARATUS
A temperature-compensated static convergence apparatus for establishing and maintaining a substantially constant magnetic flux field across an electron beam path in a tricolor cathode-ray tube has...
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3590302 |
TEMPERATURE COMPENSATED CONVERGENCE COIL FOR CATHODE RAY TUBES
Convergence coil assembly for multigun cathode ray tubes in which changes in magnetic permeability due to changes in temperature are compensated by the provision of a temperature compensating...
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3529197 |
ELECTRON TUBE DEVICE PROVIDED WITH A PERIODIC PERMANENT MAGNET FOCUSSING MEANS AND MAGNETIC FLUX TEMPERATURE COMPENSATING MEANS
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3509504 |
MAGNETIC FOCUSING SYSTEM
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3505560 |
WIDE RASTER CORRECTION FOR A COLOR TELEVISION RECEIVER
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3450930 |
PERMANENT MAGNET FOCUSED LINEAR BEAM TUBE EMPLOYING A COMPENSATING MAGNET STRUCTURE BETWEEN THE MAIN MAGNET AND THE BEAM COLLECTOR
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3401295 |
Periodic permanent magnet focusing system for electron discharge devices
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3392308 |
Crossed field tube having a pair of permanent magnets of different magn etomotive force
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3387241 |
Permanent magnet multipole magnetic lens with variable convergence
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3377512 |
Unitary beam convergence magnet structure and control apparatus
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3373388 |
Permanent magnet system for the generation of at least two opposite magnetic fields lying one behind the other for the bundled guidance of an electron beam, especially for traveling wave tubes
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3373389 |
Magnetic field straightener
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3366904 |
High-power multi-stage klystron with adjustable periodic magnetic focussing
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3355622 |
Electron beam focusing apparatus
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3329915 |
Permanent magnet system for the bundled guidance of an electron beam over a relatively long path, especially for traveling wave tubes
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