JPS63141549U

JPS63141549U -

Info

Publication number: JPS63141549U
Application number: JP3275587U
Authority: JP
Priority date: 1987-03-06
Filing date: 1987-03-06
Publication date: 1988-09-19

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４枚の磁性片に
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の補正の状態を示
す説明図、第４図は一般に知られている垂直偏向
コイルによつて発生する垂直偏向磁界の分布状態
の説明図、第５図は画面上に生じるＶＣＲの説明
図、第６図は従来の偏向ヨーク装置の概略背面図
、第７図は同じくＶＣＲ補正用の磁性片の平面図
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、２
４……水平偏向コイル、２５……受像管、２６…
…コイルボビン後部拡大部、２７，２８，２９，
３０……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 the four magnetic pieces.
Figure 3 is an explanatory diagram showing the state of VCR correction on the screen, Figure 4 is an explanatory diagram of the distribution of the vertical deflection magnetic field generated by a generally known vertical deflection coil, and Figure 5 is the screen. FIG. 6 is a schematic rear view of a conventional deflection yoke device, and FIG. 7 is a plan view of a magnetic piece for correcting the VCR. 20... Deflection yoke device, 21... Core, 22
... Vertical deflection coil, 23 ... Coil bobbin, 2
4... Horizontal deflection coil, 25... Picture tube, 26...
...Coil bobbin rear enlarged part, 27, 28, 29,
30...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 that includes 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, at least four magnetic pieces are provided on the surface of a rear enlarged portion of the coil bobbin. of 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 beams located on both sides. A deflection yoke device that is characterized by being larger than the previous one.