57results about "Magnetic deflection device manufacture" patented technology

An RMIM electrode, a method for manufacturing the RMIM electrode, and a sputtering apparatus using the RMIM electrode, wherein the RMIM electrode includes a magnet unit including a cylinder-shaped magnet located at a center of the magnet unit and a plurality of ring-shaped magnets having increasingly larger diameters surrounding the cylinder-shaped magnet; and a driver unit for supporting and for off-axis-rotating the magnet unit, wherein in the magnet unit, adjacent magnets have opposite magnetization directions.

A fabrication method of T2 and T1 hot-cathode fluorescent lamps is provided, which comprises processing potassium / barium glass, lead glass or borosilicate glass to a lamp tube, with the outside diameter of the lamp tube being controlled within a range of 1-9 mm; connecting two wires by glass bead fusion sealing to form a core column; winding a tungsten filament to form a spiral filament and then connecting with the wires; coating electronic powder; sealing the lamp tube and exhausting; placing mercury pills or amalgam in the entrance path at one end of the lamp tube, introducing high-purity argon gas (400-1600Pa pressure) into the lamp after exhaust operation, heating the wires by means of induction with a high frequency furnace to heat the mercury pills or amalgam to produce mercury vapors. The invention solves the technical problem of the prior fabrication process of hot-cathode fluorescent lamps rated up to T3 specification, such as large processing difficulty, difficulty in sealing lamp, failure to hermetically connect the core column with the lamp tube, difficulty in controlling processing flame, and complicated exhaust process. The invention provides an ideal technical proposal for the fabrication of hot-cathode tricolor rare earth fluorescent lamps with a tube diameter less than or equal to 7mm.

A method for tensioning a shadow mask includes positioning a first side of a shadow mask into contact with the lower half of a tensioning frame, positioning an upper half of the tensioning frame into contact with a second side of the shadow mask, and clamping the upper half of the tensioning frame to the lower half of the tensioning frame to form a tensioning frame, and rigidly clamping the shadow mask between the two tensioning frame halves. The method also includes elevating the temperature of the tensioning frame to tension the shadow mask.

PCT No. PCT / JP96 / 02673 Sec. 371 Date Mar. 10, 1998 Sec. 102(e) Date Mar. 10, 1998 PCT Filed Sep. 18, 1996 PCT Pub. No. WO97 / 11204 PCT Pub. Date Mar. 27, 1997Magnetic shield materials used in color picture tubes which have excellent inner magnetic shield characteristics and an excellent handling strength, method for producing the materials and color picture tubes produced by incorporating the materials are provided. The magnetic shield materials produced by subjecting hot rolled low carbon steel strips essentially consisting of equal to or less than 0.006 weight % of C, equal to or less than 0.002 weight % of N, equal to or less than 0.5 weight % of Mn, 0.5-2.5 weight % of Si, Fe as a balance and unavoidable impurities to a cold rolling and subsequently annealing the cold rolled steel strip at a temperature of 500-700 DEG C. and applying a nickel plating thereto after annealing.

A method of efficiently fabricating a multipole lens. The multipole lens has plural polar elements and an annular holding member. Each polar element has a held portion. The annular holding member is provided with through-holes for holding the held portions of the polar elements. A resin is injected into the through-holes in the holding member via openings formed in the holding member, the openings being in communication with the through-holes. The injected resin is cured, thus holding the held portions of the polar elements to the holding member within the through-holes.

The present invention relates to a method and apparatus of fabricating electromagnetic coil vanes. The method involves photolithographically exposing high resolution, dense wire patterns in a flash coat of copper, on both sides of a ceramic vane substrate. The substrate can be pre-drilled with a through hole to connect the two copper coil patterns. Additional copper is then deposited on both high resolution patterns and in the through hole by plating until the desired thickness is obtained. A firing operation is then performed that eutectically bonds the copper to the ceramic.

To improve accuracy of the shape and characteristics of a coil (a deflection yoke) by accurately guide a wire to the specified winding position of a spool. A nozzle supporting part for supporting a nozzle is rotatably pin-connected to the tip of a wire supplying device capable of being freely moved in the three dimensional direction by a moving device, an engaging member to be freely turned in the normal state and to be engaged with a gear provided on the base end of the nozzle supporting part is provided, and the turning angle of the nozzle supporting part can be fixed. In winding work near a small-diameter opening part of a spool, plate members are rotatably turned to be entered into both sides of a hook of a lower hook device on which a wire is to be hooked and guided, and the wire is pushed out by the plate members to be turned, when the wire is released from the hook.

An apparatus (10) for, and method of, placing a plurality of spacers (12) between a parallel opposed anode and cathode (20) of an emissive display includes temporarily securing, by applying a vacuum for example, a first side of one of the anode or cathode to a base (14) having a plurality of electromagnets (16) positioned therein. The electromagnets (16) attract a first side of each of the plurality of spacers (12), thereby positioning each of the spacers (12) in a desired location on a second side of the one of the anode or cathode (20). The spacers (12) may be provided from a shuffling tray (40) having a plurality of openings (42), each opening (42) approximately aligned with one of the electromagnets (16) and shaped so as to present the first side to the electromagnet (16) to the one of the anode or cathode (20).

A deflection yoke for a Braun tube includes a primary 4-pole convergence yoke adapted to be positioned at a neck portion of a funnel of a Braun tube and a secondary 4-pole convergence yoke positioned in the vicinity of the funnel where horizontal and vertical deflection coils and a ferrite core are installed, for correcting a misconvergence generated due to the primary 4-pole convergence yoke, wherein at least one of the vertical and the horizontal deflection coils is wound at a first holder, and the secondary 4-pole convergence yoke is installed as an auxiliary coil wound on at least one side of the inner side or the outer side of the first holder.

A Cathode Ray Tube (hereinafter, CRT), includes a mask assembly which is composed of a main frame for supporting the shadow mask and a sub frame for supporting the main frame. When the minimum distance between the flat surface extended from the upper surface of the main frame and the flat surface extended from the lower surface of the sub frame is Lb, the height of the sub frame is Ls and the minimum distance between the flat surface extended from the upper surface of the main frame and the flat surface extended from the lower surface of the sub frame, in case the mask is attached to the mask assembly, is La, the following equation, 0.40<=Ls / Lb<=0.55 or 0.45<=(Ls-Lm) / Lb<=0.59 is satisfied and after compression, the following equation, 0.08<=(La-Lb) / (Lb-Lm)<=0.17 is satisfied. Therefore, the creep phenomenon, causing tension degradation and wrinkles at the corner portion of the shadow mask after the heat processing, can be prevented and the howling phenomenon, which can cause serious degradation of quality of screens by vibration of the CRT, can be prevented, considering the instrumental formality with a panel at the same time.

Disclosed is a deflection yoke for improve a screen quality, including a coiling density adjustment groove formed along a vertical direction of a coil by way of increasing the coiling density at an arbitrary portion of the electric field at the internal side of the deflection coil. To this end, a winding frame for winding coil around the deflection yoke, having a curvature of a designated shape at the center is provided, in which the winding frame includes a wire position guide that is projected as much as a designated width to a vertical direction of a coil to be wounded around an arbitrary portion of the internal electric field for increasing a coiling density.

A method for adjusting the horizontal coil of a deflection yoke, which adopts the method of controlling the outer diameter of the coil opening and the neck, the ratio of the inner cavity diameter, and the extension curvature of the neck and the opening, so as to achieve the purpose of significantly improving the dynamic performance and solving the contradiction of static adjustment. According to the conventional adjustment method, the problems of half-dot size, green drop-off, horizontal line pillow shape, vertical line barrel pillow shape reverse, etc., under the same conditions, the amount of material used is less, the convergence grade is high, and the pinning method can be replaced within a certain range. It greatly improves the efficiency of the equipment; at the same time, it converts the traditionally abstract barrel-shaped field and pincushion-shaped field into intuitive size data comparison, which is convenient and fast to adjust.

Provided is a horizontal deflection coil of a deflection yoke in which the shape of the horizontal deflection coil is changed, thereby adjusting a screen wire distribution regardless of a middle wire distribution and constantly maintaining the shape of the middle portion of the horizontal deflection coil.

Provided is a deflection yoke with a lead-out wire which is not pinched between insulation ribs, easy to assemble, enabled to restrain the generation of defect. A horizontal deflection coil 20' is composed of a small diameter part 20a, a large diameter part 20b, two side parts 20c, and a window part 20d surrounded by the above parts. A wind start wire 20s' is led out from the side part 20c, and a wind finish wire 20f is led out from the small diameter part 20a. The wind start wire 20s' is located at the position extending from a small diameter side end part 20d1 of the window part 20d at the side parts 20c to the large diameter side which is distant from other parts, and led out from a curved part 20d3.

A partition is formed by the process including a step for providing a sheet-like partition material that covers a display area and outside thereof on the surface of the substrate, a step for providing a mask for patterning that covers the display area and the outside thereof, so that a pattern of the portion arranged outside of the display area of the mask is a grid-like pattern, a step for patterning the partition material covered partially with the mask by a sandblasting process, and a step for baking the partition material after the patterning.

Deflecting coil of cathode ray tubes includes magnetic core, wire windings and convergence correction module. Characters are that magnetic core in tubular type hollow hole is made from amorphous alloy. Comparing with products in intraclass, the new type of deflecting coil possesses features of reduced volume 1 / 2, weight 2 / 3, and raising deflection efficiency to 2 times. Moreover, the deflecting coil has high mechanical intensity and high symmetry. Integral magnetic core wraps outside of deflecting coil so as to shield leakage of magnetic field of coil, satisfying requirement of compatible electromagnetic field.