Abstract: A video display deflection apparatus includes a vertical deflection coil. A separator is used for mounting the vertical deflection coil thereon. The separator has a funnel shaped first part conforming to a shape of a neck of the cathode ray tube and a second part forming a front portion of the separator close to the screen. A degree of flare of the first and second parts is substantially different. A saddle shaped, horizontal deflection coil is mounted on the separator for producing a deflection field to scan the electron bean along a horizontal axis of the display screen. The horizontal deflection coil includes a plurality of winding turns forming a pair of side portions, a rear end turn portion, close to an electron gun of the tube and a front end turn portion, close to the screen. At least a portion of the front end turn portion, in a radial angular position ranging between 0 and 30 degrees, is supported on the second part of said separator away from the boundary.

Abstract: An electromagnet assembly magnetically orients a thin magnetic film deposited onto a surface of a substrate. The magnetic orientation can take place in a low-pressure processing environment such as during the deposition of the thin magnetic film or during a subsequent operation such as annealing. The electromagnet assembly includes a plate-shaped core located adjacent to the substrate and two or more electromagnetic coils that are wrapped in different directions around the core. Electrical currents conveyed through the electromagnetic coils are controlled for orienting a substantially uniaxial magnetic field throughout a range of angular positions in a plane of the substrate surface.

Abstract: A deflection yoke includes a coil, a base board, and a terminal. The terminal is mounted on the base board. The terminal extends from the base board. The terminal has a first portion and a second portion. The first portion of the terminal extends from the base board and has a substantially circular cross-section. The second portion of the terminal extends from the first portion thereof and has a cross-section with a corner. A lead extending from the coil is wound on the first and second portions of the terminal as a winding on the terminal. The winding has a first portion and a second portion. The first portion of the winding extends around the first portion of the terminal. The second portion of the winding extends around the second portion of the terminal. At least part of of the second portion of the winding is soldered to the second portion of the terminal while at least part of the first portion of the winding is non-soldered.

Abstract: The deflection unit has a yoke ring mounted on, and secured to, a coil assembly comprising deflection coils carried on a support. The yoke ring (22) is secured using a flow process in which the coil assembly is rotated about a vertical axis and flowable adhesive, e.g. polyurethane resin, is directed at one end (28) of the yoke ring such that the adhesive (30) flows over its outer surface (24) to its other end, forming a protective coating, and onto an adjacent part (20) of the coil assembly. The adhesive flows also over a substantial portion of the inner surface (23) of the yoke ring in the gap between the yoke ring and the coil assembly providing extensive bonding (32) between the yoke ring and the coil assembly which reduces unwanted noise effects from the unit in subsequent operation.

Abstract: A deflection yoke for a color cathode ray tube includes a saddle shaped vertical deflection coil and a saddle shaped horizontal deflection coil. The horizontal deflection coil includes winding turns forming a pair of side portions, a front end portion, close to a screen of the tube, and a rear end portion, close to an electron gun of the tube. The side portions form a winding window free of conductor wires therebetween extending between the front end turn portion and the rear end turn portion. Each of the side portions has first, second and third winding spaces. The first, second and third spaces extend into longitudinal coordinates that are closer to an electron gun of the tube than an end portion of the window established by the end turn portion.

Abstract: A deflection yoke for a color cathode ray tube includes a saddle shaped vertical deflection coil and a saddle shaped horizontal deflection coil. The horizontal deflection coil includes winding turns forming a pair of side portions having a winding window therebetween extending free of conductor wires. The side portion has a winding space for correcting corresponding portions of coma and convergence errors. A corner portion of the winding space is disposed in a Z-axis coordinate selected in a range between a Z-axis coordinate, defining the end of the window that is close to the electron gun of the tube, and a third Z-axis coordinate, closer to the screen of the tube. The length of the range may be approximately 10% of a length of the window. Correction of convergence error, horizontal coma error or coma parabola error may be obtained without using field shapers such as shunts or magnets.

Abstract: Disclosed is a method of arranging a conductive wire pattern of a film-type saddle deflection member for a cathode ray tube which properly arranges the conductive wires of each film such that an optimum magnetic field can be obtained, and a film-type saddle deflection member having the conductive wire pattern arranged by the method. In the method, the total number of conductive wires arranged from a horizontal axis of the cathode ray tube to a position having an angle of .theta. is determined by a following equation according to angle .theta. taken from the horizontal axis of the cathode ray rube: [.PHI.(.theta.)=A.sub.1 sin .theta.+A.sub.3 sin 3.theta.+A.sub.5 sin 5.theta.+ . . . ], in which .theta. is an angle taken from the horizontal axis to 90 degree, A.sub.1, A.sub.3, A.sub.5, . . . , A.sub.2N-1 are integers, and n is a natural number.

Abstract: An electromagnet assembly magnetically orients a thin magnetic film deposited onto a surface of a substrate. The magnetic orientation can take place in a low-pressure processing environment such as during the deposition of the thin magnetic film or during a subsequent operation such as annealing. The electromagnet assembly includes a plate-shaped core located adjacent to the substrate and two or more electromagnetic coils that are wrapped in different directions around the core. Electrical currents conveyed through the electromagnetic coils are controlled for orienting a substantially uniaxial magnetic field throughout a range of angular positions in a plane of the substrate surface.

Abstract: A deflection unit having a hollow synthetic material coil support within which a line deflection coil system is arranged, which line deflection coils are connected in an electric circuit to a line balance coil arrangement comprising a cylinder which is provided with two sub-coils and within which a magnet core is movably arranged. The coil cylinder is secured to the coil support and is provided with an arrangement of metal (connection) strips which ensure a direct connection between the balance coil lead-outs, the line deflection coils and a tap.

Abstract: A deflection yoke including a saddle shaped horizontal deflection coil, a saddle shaped vertical deflection coil located outside the saddle shaped horizontal deflection coil, and a core located outside the saddle shaped vertical deflection coil, wherein the screen side flange portion (66) of the saddle shaped horizontal deflection coil has a contour (63) of a smoothly curved line and the ratio (r=c/d) of the maximum width (c) to the maximum height (d) for the flange portion (66) is in the range of from 2.2 to 3.5. The present deflection yoke provides improved image quality.

Abstract: The present invention discloses a color cathode ray tube and a deflection yoke. In accordance with the present invention the color cathode ray tube has a color cathode ray tube main body. The main body has a glass panel portion and a glass funnel portion connected to a rear part of the glass panel portion. An electron gun is located at rear part of the color cathode ray tube main body. The color cathode ray tube also has a deflection yoke. The deflection yoke has a saddle shaped horizontal deflection coil located at a rear periphery of the color cathode ray tube main body, a saddle shaped vertical deflection coil located outside the saddle shaped horizontal deflection coil, and a core located outside the saddle shaped vertical deflection coil. The center portion of the screen side flange portion of either the horizontal deflection coil or the vertical deflection coil forms a dent toward the electron gun side.

Abstract: The present invention discloses a color cathode ray tube and a deflection yoke. In accordance with the present invention the color cathode ray tube has a color cathode ray tube main body. The main body has a glass panel portion and a glass funnel portion connected to a rear part of the glass panel portion. An electron gun is located at the rear part of the color cathode ray tube main body. The color cathode ray tube also has a deflection yoke. The deflection yoke has a saddle shaped horizontal deflection coil located at a rear periphery of the color cathode ray tube main body, a saddle shaped vertical deflection coil located outside the saddle shaped horizontal deflection coil, and a core located outside the saddle shaped vertical deflection coil. A screen side flange portion of the horizontal deflection coil or the vertical deflection coil form a projection toward the screen side.

Abstract: A deflection yoke for a CRT (cathode ray tube), including a flat wire to compensate for the convergence and upper and lower raster distortions of the electron beams, thereby forming images of high quality, and a method of making the deflection yoke. The deflection yoke has a horizontal coil adjacent the cathode ray tube, a vertical coil at least partially surrounding a ferrite core, a holder between the horizontal and vertical coils for electrically insulating the horizontal and vertical coils from one another, and a flat wire coupled to the holder for correcting convergence errors.

Abstract: A coil separator for a deflection yoke capable of simplifying its manufacturing process by assembling accessory components on divided neck portions and screen portions and then connecting the neck portions to the screen portions. The coil separator includes a screen portion having a band portion formed on its conical lower end, a neck portion including a wire guiding portion and a yoke clamp fastening portion, and a connecting portion for connecting the neck portion to the screen portion. The connecting portion may include a plurality of projected pins and insertion holes formed on the neck portion and the screen portion, respectively, so that the projected pins fit into the insertion holes to connect the neck portion to the screen portion. As an alternative, the connecting portion may include a spacer which has a predetermined height and is inserted between the neck portion and the screen portion to adjust the length of the screen portion.

Abstract: A split type coil separator which does not easily generate axial deviation, is formed as a split type coil separator which is composed of a neck portion side coil separator and a funnel portion side coil separator. A coupling structure is provided at the contact surfaces of the neck portion side coil separator and funnel portion side coil separator. The coupling structure is composed of a neck portion side coupling portion and a funnel portion side coupling portion. A pair of coupling projections are provided at the positions opposed by almost 180 degrees in the neck portion side coupling portion, while a coupling recessed portion is formed to the internal circumference surface corresponding to the coupling projections. When both coil separators are coupled and fixed by this coupling structure, respective coil separators are integrated without generation of axial deviation and eccentricity of center axes.

Abstract: A deflection yoke is formed with a saddle shaped horizontal deflection coil (85), a saddle shaped vertical deflection coil (86) located outside the horizontal deflection coil (85), and a ferrite core (87) located outside the vertical deflection coil (86). The screen side flange portion (82) of the horizontal deflection coil (85) has a gap (83) therethrough in the upper and lower direction. The screen side flange portion (82) is an arch-shaped portion provided at a screen side end of the horizontal deflection coil (85).

Abstract: In an inner bobbin 50, which has a deflection coil 80 wound on the inside face and has a ferrite core 70 to be arranged on the outside face, a plurality of guides 53, which support and connect a screen side base 51 and a neck side base 52, are connected with each other at a position near the neck side by forming a bridge 54, thereby decreasing deformation of guides when a deflection coil is wound, and constantly stabilizing winding distribution of deflection coil. Thus, a deflection yoke apparatus with little irregularity in function is realized. Further, with the provision of a recess 73 on the inside face of a ferrite core 70 to fit with said bridge 54 provided on the inner bobbin 50, the positioning of the ferrite core 70 against the inner bobbin 50 has become easy and reliable.

Abstract: A deflection yoke for a cathode ray tube can correct both the pincushion distortion at the upper and lower edges of the screen and the misconvergence of the screen at the same time by the deflection yoke itself without the need for a correction magnet. The deflection yoke comprises a saddle shaped horizontal deflection coil, a saddle shaped vertical deflection coil located outside the horizontal deflection coil, and a high permeability core located outside the vertical deflection coil. The core has notch portions at the center parts of the upper and lower portions of the screen side end.

Abstract: A free-wound electromagnetic yoke is formed by winding the X-axis with a continuous piece of heat bondable wire wound around a plurality of coil forms positioned on a mandrel and turned by a lathe. After winding, the mandrel is heated to cause the windings to form solid coils. After cooling, the solid coils are removed from the mandrel and from the coil forms. The same process is repeated for the Y-axis. The solid coils for both the X-axis and the Y-axis are placed in a toroidal support ring to form an electromagnetic yoke.

Abstract: An electron beam deflection device for cathode ray tubes comprises a pair of vertical deflection coils, a pair of horizontal deflection coils. At least one of the vertical deflection coils and the horizontal deflection coils has a saddle shape. A rigid separator supports the deflection coil pairs and insulating one from the other. An attachment element is coupled to the separator for securing the separator to a neck portion of the tube. The attachment element has a position on the neck and extends into a region under the vertical deflection coil pair.

Abstract: A cathode ray tube display device including unnecessary radiating magnetic field reducer which improves the ability to reduce an unnecessary radiating magnetic field, especially, generated by a vertical deflection coil. A pair of coil is disposed in opposing relationship on the opposite sides of the ferrite core along an X-axis or in the horizontal direction of the deflection yoke so as to be in contact with an open side end of the ferrite core. Each coil has a shape curved with a predetermined radius of curvature conforming to the shape of the outer peripheral surface of the ferrite core. The ferrite core acts as a magnetic material for the coils which reduces the unnecessary radiating magnetic fields to increase the coil inductances to thereby produce a large extremely low frequency magnetic field (ELMF) reducing effect.

Abstract: A cathode ray tube apparatus comprising: a deflection yoke comprising a horizontal deflection coil that forms the pin cushion distortion as a whole; a vertical deflection coil that forms the barrel distortion as a whole: a resin frame provided around the periphery of the horizontal deflection coil, which insulates and fastens the horizontal deflection coil and the vertical deflection coil; and a ferrite core provided around the periphery of the vertical deflection coil to strengthen the magnetic flux and the length of part of cone portion of the horizontal deflection coil at the side of the screen whose winding angle is not less than 0 degree nor more than 30 degree with respect to the reference line is 25 mm or longer as measured from the reference line. This cathode ray tube apparatus can correct the pin cushion distortion of raster in the upper-and-lower side of the picture for flattened and increased deflection angle cathode ray tubes with the deflection yoke itself.

Abstract: 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 type at a neck portion at the same time. The deflection yoke includes a coil separator for fixing a relative position between horizontal deflection coils and vertical deflection coils by acting as an insulator. The supplementary coil also includes projections formed on inside surfaces of the neck portion and the screen portion of the coil separator. The supplementary coil is wound around the projections in the neck portion in a winding direction identical to a winding direction of the horizontal coil and wound around the projections in the screen portion in a winding direction opposite to the winding direction of the horizontal coil.

Abstract: A tilt coil is mounted in front of a deflection yoke of a cathode-ray tube in order to perform a tilt function and an earth magnetic field compensation function, in a tilt coil mounting device of a display. And more particularly speaking, an improved tilt coil mounting device of a display can make the tilt coil fixed around a bulb of the cathode ray tube at a fixed interval by a tilt fixing member separately provided in order to amicably mount the tilt coil, and fully perform tilt and earth magnetic field compensation functions.

Abstract: A deflection yoke which is capable of sufficiently reducing a high order raster distortion (gullwing) at the upper and lower edges of the screen without damaging coil wires of the screen side flange portion (5) at the time of winding the horizontal deflection coil (1). A deflection yoke is formed with a saddle shaped horizontal deflection coil (1), a saddle shaped vertical deflection coil (2) located outside the horizontal deflection coil (1), and a ferrite core (3) located outside the vertical deflection coil (2). The screen side cone portion (1a) of the horizontal deflection coil (1) is wound with a winding angle range from 1.degree. to 80.degree. with a higher winding distribution in the range from 18.degree. to 30.degree. with the horizontal axis as the standard. The head point in the direction of the screen side tube axis of the screen side cone portion (1a) of the horizontal deflection coil (1) is located 30 mm away from the screen side tip portion of the ferrite core (3).

Abstract: 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 larger arcuate interconnecting portion and a smaller arcuate interconnecting portion, respectively. The smaller arcuate interconnecting portion is connected generally perpendicularly to the longitudinal portions, respectively, and the larger arcuate interconnecting portion is connected at an acute angle to the longitudinal portions, respectively.

Abstract: A deflection device for a cathode-ray tube with three coplanar guns, comprising a pair of horizontal deflection coils and a pair of vertical deflection coils, each horizontal deflection coil having a main deflection winding extending over the length of the deflection device, and an auxiliary deflection winding. Each main deflection winding has a front portion and a rear portion. The auxiliary deflection winding is disposed in the front portion of the main deflection winding and is arranged to generate a magnetic field opposed to a field of the main deflection winding.

Abstract: A deflection yoke is comprised of a separator for insulating horizontal and vertical deflection coils, the horizontal deflection coils of saddle type are provided within and top and bottom portion of the separator respectively, the separator has ribs for partly separating the top and bottom of horizontal deflection coils at their confronted portions, so that the confronted portions confront directly each other where the ribs are not present, thereby a magnetic field generated by the horizontal deflection coils is collected depending on a location and configuration of the ribs.

Abstract: This invention provides an improved deflection yoke of a self-convergence system for deflecting electron beams of a color CRT with in-line electron guns for emitting the electron beams, capable of preventing both a vertical misconvergence of R/B lines and a cross-misconvergence at a low cost. The deflection yoke includes at least a pair of saddle type horizontal deflection coils. Each of the saddle type horizontal coils has two main coil sections divided by a window at a center thereof, a front rim forming a front mouth, a rear rim forming a rear mouth and, at least, a first split-winding section nearby one of the front and rear rims. Further, a second split-winding section is provided in the respective two main coil sections in a rear half of the respective two main coil sections. The second split-winding section is divided into two parts, a first coil part positioned close to the window and a second coil part positioned remote from the window, by a small opening.

Abstract: A deflecting apparatus capable of reducing assembling man-hour and improving deflection efficiency is provided. A coil bobbin 12 has an inner peripheral surface on which horizontal deflection coils are wound and includes a bobbin body 15 and a rear bend member 17 attachable to the rear side of the bobbin body 15, a bell-shaped core 22 having a one-piece structure is fitted on the outer peripheral surface of the bobbin body 15 in close contact therewith, and the rear bend member 17 is firmly attached to the bobbin body 15.

Abstract: A deflection system which improves picture distortion and misconvergence by eliminating the wrong winding of coil. in which a bobbin 20 for the deflection coil, whose partial cross section is of a funnel shape, is mounted on the outer peripheral surface of a cathode ray tube between a neck and a funnel for winding a deflection coil 26 thereon. When the deflection coil is wound from a bend onto the inner surface of a bobbin body, a coil layer regulating portion 40 is formed at a claw on the bend side. The coil layer regulating portion is a thick-wall portion formed on the inside of the claw on the bend side. By this thick-wall portion, a horizontal deflection coil 26 is wound on an average with respect to the bottom of respective bends 22 and 24 even when the horizontal deflection coil is wound from the bend 22, 24 onto the inner surface of the bobbin body. As a result, the coil is wound on an average with respect to a coil groove inside the bobbin, so that the wrong winding of coil is eliminated.

Abstract: A liner of a deflection yoke is provided with non-threaded sleeves. A slide pin is inserted into the sleeve until a head portion of the pin comes in contact with a funnel of a cathode ray tube on which the yoke is mounted. After adjustment, a wedge is inserted into a hollow part of the pin for expanding radially the wall of the pin. Thereby, the pin is locked within the sleeve. In this way, the position of the yoke relative to the tube is secured.

Abstract: A deflection unit for deflecting the electron beams in a cathode ray tube has a hollow coil support of a synthetic material. At one end, the support has projections around which a clamping apparatus is arranged for securing the deflection unit to the neck of the cathode ray tube. The clamping apparatus has projections located opposite each other, while their mutual distance determining the diameter of the clamping apparatus is adjustable by tightening a bolt. The ends of the projections are constructed in such a way that they support each other when the bolt is tightened.

Abstract: A deflection yoke for a cathode-ray tube, includes a pair of vertical deflection coils, a pair of horizontal deflection coils and a rigid separator insulating the pairs of deflection coils from each other. The separator has on its surface an arrangement for positioning and holding in place front and rear parts of saddle-shaped deflection coils. The arrangement forms an integral part of a body of the separator and is produced when molding the body.

Abstract: A coma-error correction means of a deflection yoke is disclosed, in which a ferrite core wound with a vertical deflection coil is mounted on the periphery of a coil separator by a core clamp, a neck portion is extended from the top of the coil separator and attached with a coma-error correcting means at its horizontal surface, and a screen portion is extended from the bottom of the coil searator, wherein said coma-error correcting means includes a correction magnetic plate, two correction iron pieces serving as mounting surfaces and integrally formed at the end parts of the correction magnetic plate, and a coma-error correction coil wound on the top of the correction magnetic plate.

Abstract: A cathode ray tube (1) including an electron gun (6) for generating at least one electron beam and a deflection unit for deflecting the electron beam(s) across a display screen. The deflection unit (11) includes a first system (21) and a second system (22, 32) of saddle-shaped deflection coils. Which are interconnected via connecting pieces (41, 51, 63, 64) which are flexibly arranged with respect to each other.

Abstract: A deflection yoke is provided on the outer surface of a boundary region between a neck and a cone of a funnel of a vacuum envelope. The deflection yoke includes a separator having one end portion, smaller in diameter, and the other end portion, larger in diameter, and a deflecting coil is attached to the inner surface of the separator. The inner surface of the separator is shaped so that its one end portion is circular and its other end portion is substantially rectangular. A plurality of first and second hooks and channels defined between the hooks are arranged on the one and the other end portions, respectively, of the inner surface of the separator. A winding of the deflecting coil is wound around the first and second hooks so as to be fitted in the channels. Third hooks for preventing the winding from being lifted are located on those parts of the inner surface of the separator whose cross sections have a minimum radius of curvature.

Abstract: A deflection yoke for a cathode ray tube can correct both the pincushion distortion at the upper and lower edges of the screen and the misconvergence of the screen at the same time by the deflection yoke itself without the need for a correction magnet. The deflection yoke comprises a saddle shaped horizontal deflection coil, a saddle shaped vertical deflection coil located outside the horizontal deflection coil, and a high permeability core located outside the vertical deflection coil. The core has notch portions at the center parts of the upper and lower portions of the screen side end.

Abstract: The improved convergence core assembly utilizes a separate carriage for the convergence core. This separate carriage properly aligns and holds the convergence core in relation to the convergence core assembly. In particular embodiments, the separate core carriage provides self centering and positional stability for the convergence core in the x-y plane, in the z-axis, and rotationally in the x-y plane. To accomplish this, the core carriage includes means for positioning the convergence core in the convergence core assembly. In certain embodiments, the means for positioning includes leaf springs and positioning tabs. The leaf springs tend to force the electromagnetic coil assembly against the stops of the positioning tabs to properly locate the convergence core in the z-axis. The positioning tabs also exert opposing spring forces on the convergence core to center the convergence core assembly in the x-y plane.

Abstract: A position sensor is structurally integrated within a wide-gap magnetic actuator. Being an integral structure, the sensor provides voltages representative of a relative shift in position of the actuator's armature and pole piece from the neutral or base position and represents the actual position between pole piece and armature. Suitably the position sensor includes a photosensitive surface in the shape of a circular disk that is attached to the actuator's paddle and a narrow beam light source which is attached to the actuator's pole piece and oriented to produce a small spot of light on the photosensitive surface.

Abstract: The present invention discloses a convergence yoke for improving focus characteristic. It comprises vertical correcting coils and horizontal correcting coils coils connected to a vertical deflection signal line and producing a barrel-shaped deflection field more enfeebled in magnetic shape without the change of magnetic force or equalizing a correction field without the change of magnetic force to improve focus characteristic of electron beams; and a core for making the vertical correcting coils and horizontal correcting coils produce an enfeebled barrel-shaped deflection field. Besides, this invention corrects coma aberration by compensating the barrel-shaped deflection field and the pincushion-shaped deflection field with each other to equalize the deflection fields without the change of magnetic force.

Abstract: A horizontal coil separator has a plurality of ribs for positionally controlling turns of a magnet wire, the ribs project successively stepwise in an axial direction of a cathode-ray tube. The turns of the magnet wire are bent over at respective positions staggered in the axial direction of the cathode-ray tube, depending on the winding position of the magnet wire as determined by the ribs. The ribs have fingers disposed on distal ends thereof for positionally controlling only opposite ends of the turns of the magnet wire.

Abstract: A magnetic system for producing a magnetic field having static and high frequency time-varying components comprising: two magnetic poles defining a gap therebetween, the poles being formed with electrically insulating material for confining any high frequency induced eddy currents to limited values in local paths in the poles; an ac coil associated with the magnetic poles for producing a time-varying magnetic field in the gap; a magnetic structure including a yoke and two cores which are respectively coupled to the two poles, the magnetic structure being formed of solid material, with a high magnetic saturation level; and dc coils associated with the cores of the magnetic structure for producing a static magnetic field in the gap. The magnetic system are used for magnetically scanning an ion beam and an ion implantation system, both of which are based on the above system, as well as a magnetic system useful for magnetic resonance imaging applications.

Abstract: A cathode ray tube display which can reduce the temperature rise of its deflection yoke, not by using either extra-fine wires or litz wires but by increasing the heat radiation of its saddle-type coils, is provided. A deflection yoke arranged in the rear periphery of a cathode ray tube display main body includes a saddle-type horizontal deflection coil, an insulating frame located outside of the saddle-type horizontal deflection coil, a saddle-type vertical deflection coil and a ferrite core located outside the insulating frame. The surface of the saddle-type horizontal deflection coil is partially exposed from the screen-side end face of the ferrite core toward the screen, and the surface area of the exposed part is predetermined to be from 100 to 298 cm.sup.2. Similarly, the exposed surface area of the saddle-type vertical deflection coil is predetermined to be from 55 to 185 cm.sup.2.

Abstract: An improved deflection yoke for a cathode ray tube includes a cone-shaped separator, a ferrite core on an outer surface of the separator, vertical deflection coils wound around the ferrite core, and horizontal deflection coils on an inner surface of the separator, wherein the separator is an anisotropic plastic magnetic body that shields harmful magnetic flux generated in deflection coils and prevents distortion of the magnetic flux so that electron beams can be effectively deflected.

Abstract: A cathode-ray tube includes an envelope in which a panel portion, a funnel portion, and a neck portion are integrally formed, and a conductor film and a deflecting yoke mounted on an outer surface of the funnel portion. A strip-type electric field reducing piece has a coated portion coated with an insulator, and an exposed conductive material portion. The coated portion is disposed between the funnel portion and the deflecting yoke, and the conductive material portion is connected to the conductor film.

Abstract: A free-wound electromagnetic yoke is formed by winding the X-axis with a continuous piece of heat bondable wire wound around a plurality of coil forms positioned on a mandrel and turned by a lathe. After winding, the mandrel is heated to cause the windings to form solid coils. After cooling, the solid coils are removed from the mandrel and from the coil forms. The same process is repeated for the Y-axis. The solid coils for both the X-axis and the Y-axis are placed in a toroidal support ring to form an electromagnetic yoke.

Abstract: The vertical deflection coil of a deflection yoke is wound by repeating the process that a main winding is realized by wire wound from the one end to the central portion of each core, wire which returns back at once from the central portion to the other end of the core, is wound along the outer circumferential surface of the core. The main winding is realized by the wire wound from the other end to the central portion of the core, and the wire that returns back at once from the central portion to the one end is wound along the outer circumferential surface of the core. Therefore, the distortion of a vertical deflection magnetic field is prevented.

Abstract: A deflection device for use in a color cathode-ray tube, which has a pair of horizontal deflection coils for generating a pincushion-shaped horizontal deflection magnetic field, a pair of vertical deflection coils for generating a barrel-shaped vertical deflection magnetic field. The deflection device also having a pair of correction coils each of which being located at a distance of 10 mm or less from a plane containing the center and vertical axes of the device, a current flowing through each correction coil in synchronism with, and in a direction opposite to, the currents flowing in the horizontal deflection coils. The deflection device may also include a second pair of correcting coils, each of which being located adjacent to the first pair of correcting coils and arranged in a similar arrangement relative to the plane defined by the center and vertical axes.

Abstract: A yoke separator or liner includes a body having a conical shape and a ring shaped retraining member that is attachable to a rear portion of the body by four pairs of pawls and studs. A beam s velocity modulation coil is installed on a support member made of flexible material using a printed circuit technique. The studs are inserted in orifices formed in the support member. The pawls snap onto the studs and press against the support member in a manner to secure the modulation coil.