Abstract: A multiple split ring clamp for securing a printed circuit board on a cathode ray tube, in which the clamp first split ring has overlapping jaws and teeth on each end of the jaws, wherein the jaws and teeth are adapted to engage and hold the clamp on the cathode ray tube, and wherein the clamp has a second ring and stand-off which is adapted for removably securing a printed circuit board on but spaced apart from the first ring and cathode ray tube. The first split ring may be connected to but independent from the second ring and standoff so that movement of the clamp will not affect the position of the stand-off.

Abstract: A clamp for securing a printed circuit board on a cathode ray tube, in which the clamp has a split ring with overlapping jaws and teeth on each end of the jaws, wherein the jaws and teeth are adapted to engage and hold the clamp on the cathode ray tube, and wherein the clamp has an stand-off which is adapted for removably securing a printed circuit board on but spaced apart from the cathode ray tube. The split ring may be connected to but independent from the standoff so that movement of the clamp will not affect the position of the stand-off.

Abstract: In a cathode ray tube, plural electron beams are directed towards a faceplate biased at screen potential and are magnetically scanned by a non-self-converging deflection yoke across the faceplate to impinge upon phosphors thereon to produce light depicting an image. The plural electron beams are substantially converged near two opposing edges of the faceplate. A processor changes the raster of the image from a first raster corresponding to position of the image to a second raster corresponding to the position of the plural electron beams on the faceplate. One or more electrodes between the tube neck and the faceplate are biased above and/or below screen potential to deflect electrons landing near the periphery of the faceplate.

Abstract: Disclosed is a deflection yoke comprising: a fastening band of a ring shape assembled on an outer periphery of a neck portion in a coil separator by a fixing manner, provided for being extended and contracted; a pair of flanges bent and extended from both ends of the fastening band, on which a through hole is formed; a yoke clamp for generating fastening force by tightening of a bolt for passing through a pair of through holes, then being tightened by a nut; a bending portion projected on an outer side along the periphery of the fastening band, whose object contact plane for coming in contact with an outer periphery of the neck portion is divided into at least two or more.

Abstract: A first PLL circuit (100) receives a flyback pulse (VFB) as a reference signal and outputs a clock signal (CLK1), and a delay circuit (200) outputs a flyback delay signal (VFBD) having a predetermined delay time corresponding to the amount of horizontal movement on a screen. A second PLL circuit (300) receives a horizontal synchronizing signal (VHSYNC) and the flyback delay signal (VFBD) as a reference signal and a compared signal, respectively, and generates a horizontal drive pulse (VHD). A deflection yoke (12) receives the horizontal drive pulse (VHD) and generates a flyback pulse, and a step-down transformer circuit (16) outputs the flyback pulse (VFB) whose voltage is lowered. With this constitution, it becomes possible to generate a stable horizontal drive pulse which causes no jitter on the screen when a PIN balance correction, a KEY balance correction and a horizontal position adjustment of a CRT are performed by digital processing.

Abstract: Each horizontal deflection coil 2 comprises the smaller diameter flange 2A. A width “b” of the smaller diameter flange 2A in the horizontal direction of a screen of a color picture tube is more than twice a height “a” of the smaller diameter flange 2A in the vertical direction of the screen.

Abstract: The present invention discloses a color CRT system that can be easily adapted for installations in either the northern or the southern hemisphere. The CRT is symmetrical with respect to its yamming or set up for the earth's magnetic field so the CRT can be installed in either a normal or an inverted orientation. Likewise the yoke and yoke connector are designed and can be easily installed so the CRT scan starts in the upper left of the CRT in either the normal or inverted installation. The connectors for the neck video card are designed to exit the side of the card so the wires can be routed to the CRT system card in either CRT installation orientation. Finally the anode wire is made with a length and attachment point such that the anode is wireable when the CRT is in the normal or inverted orientation.

Abstract: A deflection yoke has first and second horizontal deflection coils formed of a solid wire. A first bobbin and a second bobbin are formed in one-piece construction with each other. The first coil-end lead of the first horizontal deflection coil and the second coil-end lead of the second horizontal deflection coil are wound around the second bobbin to form a balance coil such that the balance coil is formed continuous with horizontal deflection coils. After the first and second horizontal deflection coils and the balance coil have been wound around the respective bobbins, the second bobbin may be separated from the first bobbin and then the second bobbin may be mounted to a desired part of the first bobbin.

Abstract: A video projector is arranged with three color CRTs vertically aligned with respect to a forwardly located projection surface. The projection surface is in a room having opposite side walls on either side of said projection surface. The video projector is positioned closely adjacent either of said side walls, thus leaving the ceiling and floor areas of the room unobstructed. The arrangement facilitates non intrusive use of a video projector in a home environment.

Abstract: A deflection yoke has first and second horizontal deflection coils formed of a solid wire. A first bobbin and a second bobbin are formed in one-piece construction with each other. The first coil-end lead of the first horizontal deflection coil and the second coil-end lead of the second horizontal deflection coil are wound around the second bobbin to form a balance coil such that the balance coil is formed continuous with horizontal deflection coils. After the first and second horizontal deflection coils and the balance coil have been wound around the respective bobbins, the second bobbin may be separated from the first bobbin and then the second bobbin may be mounted to a desired part of the first bobbin.

Abstract: Each horizontal deflection coil 2 comprises the smaller diameter flange 2A. A width “b” of the smaller diameter flange 2A in the horizontal direction of a screen of a color picture tube is more than twice a height “a” of the smaller diameter flange 2A in the vertical direction of the screen.

Abstract: A method and apparatus for securing a deflection yoke onto a cathode ray tube includes forming pockets having deformable, resilient inner walls along a circumferential surface of the deflection yoke. When the deflection yoke is mounted on the cathode ray tube, the inner walls deform slightly to conform to a contact portion of the cathode ray tube. The position of the deflection yoke with respect to the cathode ray tube it then adjusted into proper alignment. Once the deflection yoke and cathode ray tube are properly aligned, fast curing epoxy is poured into each of the plastic pockets, wedging the deflection yoke permanently into its desired orientation on the cathode ray tube. The pockets can either be integrally formed with the deflection yoke or they can be manufactured and attached to the deflection yoke in a separate operation.

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 monitor using holders for a cathode ray tube is provided. The monitor may be constructed using a pair of holders for the cathode ray tube, a front cover, and a rear cover. The upper and lower holders are designed to hold the upper and lower edges of the cathode ray tube. Each of the holders has flanges along opposite edges that form front and rear flanges that are positioned abutting the front and rear covers, respectively. A main fastener hole is positioned on each end of the front flange to allow the mounting ears of the cathode ray tube to be fastened to a main boss of the front cover. Each of the holders has a plurality of fastener holes that allow each of the holders to be fastened to support bosses positioned around the main boss on the front cover. A rubber washer is interposed between each mounting ear of the cathode ray tube and the corresponding fastener hole. Each end of the flange is partially depressed at a position near the main fastener hole to accommodate the rubber washer.

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 deflection yoke comprises an inner arm formed with at least one heat insulator, is disposed between a coil separator and a vertical coil, and has a front face in a rectangular shape. This deflection yoke provide a pictorial image of good quality by preventing overheat due to an eddy current induced from a high frequency-current and preventing distortions of a magnetic field.

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 neck attachment structure of a cathode ray tube comprising a retainer mounted on one side of a shield case assembly for inserting and fixing a circuit board; and a locking band rotatably coupled to the retainer for preventing the loosening of the neck enables the neck to be fixed to the circuit board by applying an incremental tightening force by rotating the locking band. The neck is fixed to the circuit board by soldering and then attached to the shield case assembly. The locking band ensures that the neck is firmly fixed on the circuit board and eliminates the occurrence of cracks at the soldered junction experienced in the prior art, thereby enhancing product reliability.

Abstract: A printed circuit board coupling device for use with a cathode ray tube is disclosed in which a coupling device is attached to one side of the circuit board by fastening devices. The coupling device includes a holder having generally ring shaped arcuate ribs extending from a support plate thereof. A support aperture is formed in the center of the ring shaped arcuate ribs and receives the base of the neck to encompass and fasten the center of the base, while fastening tabs and clips are integrally formed on the support plate to engagedly secure to the side of the circuit board, thereby evenly distributing the weight of the circuit board.

Abstract: A deflection yoke assembly for a cathode ray tube includes four substantially equally spaced inclined mounting members arranged about the circumference of a mounting ring at the front of the yoke assembly. Each mounting member has a plunger which positions the yoke with respect to the funnel portion of the cathode ray tube. A continuously unidirectional restricting means prevents the plunger from withdrawing from the funnel portion of the cathode ray tube. A release cylinder, which is coaxial with the sleeve and plunger, releases the unidirectional means, which may be an internally toothed washer, in order to provide capability for readjustment.

Abstract: A deflection yoke for a cathode ray tube includes a pair of saddle-shaped horizontal deflection coils, a pair of saddle-shaped vertical deflection coils separated from the horizontal deflection coils by a rigid separator. The separator is formed from a funnel-shaped main body and a removable rear ring. The rear ring has an arrangement for locking to the main body and partially covers the back of the vertical deflection coils. Arms are placed around an external periphery of the rear ring that extend towards a core made of magnetic material. The core is placed around the vertical coils. The arms hold the core in place.

Abstract: A deflection yoke has a non-magnetic conductor on a screen-bent portion or a neck-bent portion of a vertical deflection coil, and the non-magnetic conductor is connected to ground by means of a lead line for the purpose of eliminating a ringing phenomenon caused by stray capacitance between horizontal and vertical deflection coils, and the vertical deflection coil and a ferrite core, which can be adopted to any saddle-saddle type deflection yokes having saddle-shaped vertical and horizontal deflection coils. A considerable amount of the stray capacitance is passed to the ground, and the ringing phenomenon is improved.

Abstract: A deflection yoke for use with cathode ray tubes of the type in which one or more electron beams generated therein are deflected includes a magnetic core member and a selected wire winding thereon to produce a magnetic field for deflecting the beam. Each core has a winding axis defined thereon and each winding occurs along at least one segment having a given length along the winding axis. Each segment has a first end and an opposed second end and a middle portion defined therebetween. The winding pattern of each winding in accordance with the invention begins in the central portion of each segment and includes a first toroidal winding portion starting at this midpoint and extending in a first handed direction to a first segment end. The winding pattern includes an intermediate transition portion which extends from the first segment end to the second segment end. The winding pattern continues with a second toroidal winding portion extending from the second segment and to the middle starting point.

Abstract: A structure for fixing a deflection yoke and a focus magnet on the periphery of a projection cathode ray tube. A fixing part of the focus magnet and a fixing part of the deflection yoke are overlapped and these two fixing parts are fixed on the periphery of the tube by one common clamp.