JPH01148656U

JPH01148656U -

Info

Publication number: JPH01148656U
Application number: JP4437488U
Authority: JP
Priority date: 1988-04-01
Filing date: 1988-04-01
Publication date: 1989-10-16

Description

[Brief explanation of the drawing]

第１図は本考案偏向ヨーク装置の一実施例にお
ける概略背面図、第２図は同じく一対の磁性片に
よつて生じる垂直偏向磁界の分布状態の説明図、
第３図は同じく画面上のＶＣＲワイドの補正の状
態を示す説明図、第４図は画面上に生じるＶＣＲ
ワイドの説明図、第５図は従来の偏向ヨーク装置
の概略背面図、第６図は同じく従来の磁性片によ
つて生じる垂直偏向磁界の分布状態の説明図であ
る。２０…偏向ヨーク装置、２１…コア、２２…垂
直偏向コイル、２３…コイルボビン、２４…水平
偏向コイル、２６…コイルボビン後部拡大部、２
７，２８…略コ字状磁性片。 FIG. 1 is a schematic rear view of one embodiment of the deflection yoke device of the present invention, and FIG. 2 is an explanatory diagram of the distribution state of the vertical deflection magnetic field generated by a pair of magnetic pieces.
Figure 3 is an explanatory diagram showing the state of VCR wide correction on the screen, and Figure 4 is an explanatory diagram showing the state of VCR wide correction on the screen.
FIG. 5 is a schematic rear view of a conventional deflection yoke device, and FIG. 6 is an explanatory diagram of the distribution state of a vertical deflection magnetic field generated by a conventional magnetic piece. 20... Deflection yoke device, 21... Core, 22... Vertical deflection coil, 23... Coil bobbin, 24... Horizontal deflection coil, 26... Coil bobbin rear enlarged part, 2
7, 28...Substantially U-shaped magnetic piece.

Claims

[Scope of utility model registration request]

a core; a horizontal deflection coil and a vertical deflection coil wound along the core; and a horizontal deflection coil and a vertical deflection coil arranged on the inner surface of the core to maintain insulation between the two coils;
In a deflection yoke device, which comprises a coil bobbin that defines the positions of both coils, and is mounted on a picture tube in which a plurality of electron guns are arranged in-line, a pair of substantially U-shaped parts are provided on the surface of the enlarged rear part of the coil bobbin. Magnetic pieces are arranged and fixed facing each other vertically with respect to the center of the tube axis, and among the electron beams generated by the electron gun, the sensitivity of the electron beam located in the center is determined by the sensitivity of the electron beam located on both sides. A deflection yoke device characterized by reduced beam sensitivity.