Deflecting coil and cathode ray tube device with same
A technology of deflection coils and coils, which is applied in the direction of cathode ray tubes/electron beam tubes, electrode devices and related components, discharge tubes, etc., which can solve the problem that it is difficult to roll vertical deflection coils into rings, and the manufacturing cost of deflection coils becomes high. It is difficult to solve problems such as magnetic core manufacturing, and achieve the effects of reducing deflection power, improving heat dissipation, and suppressing heat generation
Inactive Publication Date: 2005-08-03
KK TOSHIBA
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Problems solved by technology
[0012] However, although the concave / concave deflection yoke with the above-mentioned basic structure can also reduce the deflection power than the half-ring type deflection coil, it is difficult to manufacture the magnetic core made of magnets into a truncated pyramid shape, and it is also difficult to make a truncated pyramid at the same time. The table-shaped magnetic core winds the vertical deflection coil into a ring
Therefore, the manufacturing cost of the deflection yoke becomes high, so it is not common
Method used
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[0053] Hereinafter, a color cathode ray tube device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
[0054] As shown in FIGS. 1 and 2, a color cathode ray tube device has a vacuum enclosure 10 having an almost rectangular-shaped panel 1 having an insulating skirt portion 2 at its periphery and, connected to the panel, The funnel 4 which separates the electronic outer skirt and the cylindrical neck 3 which is connected to the small diameter part of the funnel. Panel 1 has an almost flat surface. A plurality of fluorescent layers emitting red, green, and blue light respectively, and a fluorescent screen 12 composed of a light-shielding layer are formed on the inside of the panel 1 . A coil mounting portion 15 is formed on the outer periphery of the neck 3 to the funnel 4, and a deflection yoke 14 is mounted on this coil mounting portion. In addition, an electron gun 16 for emitting three electron bea...
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A deflection yoke of a cathode ray tube apparatus comprises a pair of saddle-type horizontal deflection coils located symmetrically with respect to a central axis and substantially in the shape of a truncated pyramid. A magnetic core substantially in the shape of a truncated cone is located coaxially around the horizontal deflection coils, and a pair of vertical deflection coils are wound on the magnetic core. A relation between a space vf between a large-diameter end portion of the magnetic core and each of the horizontal deflection coils and a space vr between a small-diameter end portion of the magnetic core and each of the horizontal deflection coils, with respect to the direction of a vertical axis perpendicular to the central axis, is given by vf>=vr.
Description
[0001] This application is based upon and claims to be based upon and claims to have prior Japanese Patent Applications No. 2000-220990 filed on July 27, 2000, No. 2000-222919 filed on July 24, 2000, and No. 2001 filed on April 27, 2001 -133464 is priority, the contents of which applications are hereby incorporated by reference. technical field [0002] The present invention relates to a deflection coil for a cathode ray tube device such as a color picture tube, and a cathode ray tube device having the deflection coil. Background technique [0003] As a cathode ray tube device, such as a color picture tube, there is a vacuum peripheral composed of a glass panel having an almost rectangular effective portion, a glass funnel connected to the panel, and a cylindrical glass neck connected to a small-diameter portion of the funnel. . A phosphor screen consisting of three-color fluorescent layers emitting blue, green, and red dots or stripes and a black light-shielding layer is f...
Claims
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IPC IPC(8): H01J29/76
CPCH01J29/762H01J2229/7031H01J29/76
Inventor 阿光信彦高桥亨井上雅及村井敬小岛忠洋伊藤喜昭
Owner KK TOSHIBA