JPS6175681U - - Google Patents
Info
- Publication number
- JPS6175681U JPS6175681U JP15905684U JP15905684U JPS6175681U JP S6175681 U JPS6175681 U JP S6175681U JP 15905684 U JP15905684 U JP 15905684U JP 15905684 U JP15905684 U JP 15905684U JP S6175681 U JPS6175681 U JP S6175681U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- correction
- current
- vertical
- convergence correction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Description
第１図ないし第６図はこの考案のコンバーゼン
ス補正装置の１実施例を示し、第１図は磁界補正
コイルの配置説明図、第２図は補正電流形成回路
のブロツク図、第３図は垂直偏向電流の波形図、
第４図は補正電流の波形図、第５図はコンバーゼ
ンス補正磁界の分布説明図、第６図はラスタパタ
ーンの説明図、第７図は偏向ヨークにより生じる
垂直、水平偏向磁界の説明図、第８図は第７図の
偏向磁界にもとづくラスタパターンの１例の説明
図、第９図は従来のコンバーゼンス補正に用いら
れる磁界制御素子の１例の配置説明図、第１０図
は第７図の偏向磁界にもとづくラスタパターンの
他の説明図、第１１図は従来のコンバーゼンス補
正に用いられる磁界制御素子の他の例の配置説明
図、第１２図は第１１図の磁界制御素子により補
正されたラスタパターンの説明図である。
１，２，５…電子ビームの放射口、３，４…シ
ヤンター、６，７…エンハンサー、８…ネツク部
、９，１０…磁界制御素子、１１，１２…磁界補
正コイル、１５…補正電流形成回路、Ｅａ，Ｅｃ
…サイドビーム、Ｅｂ…センタビーム、αａ〜α
ｇ…サイドビームラスタ、βａ〜βｇ…センタビ
ームラスタ、Ｈｖ…垂直偏向磁界、Ｈｘ…コンバ
ーゼンス補正磁界。
Figures 1 to 6 show one embodiment of the convergence correction device of this invention, Figure 1 is an explanatory diagram of the arrangement of the magnetic field correction coil, Figure 2 is a block diagram of the correction current forming circuit, and Figure 3 is a vertical Deflection current waveform diagram,
Fig. 4 is a waveform diagram of the correction current, Fig. 5 is an explanatory diagram of the distribution of the convergence correction magnetic field, Fig. 6 is an explanatory diagram of the raster pattern, Fig. 7 is an explanatory diagram of the vertical and horizontal deflection magnetic fields generated by the deflection yoke, FIG. 8 is an explanatory diagram of an example of a raster pattern based on the deflection magnetic field of FIG. 7, FIG. 9 is an explanatory diagram of an example of the arrangement of a magnetic field control element used in conventional convergence correction, and FIG. Another explanatory diagram of a raster pattern based on a deflection magnetic field, FIG. 11 is an explanatory diagram of another example of the arrangement of a magnetic field control element used for conventional convergence correction, and FIG. 12 is an illustration of a raster pattern corrected by the magnetic field control element of FIG. 11. FIG. 3 is an explanatory diagram of a raster pattern. DESCRIPTION OF SYMBOLS 1, 2, 5... Electron beam radiation aperture, 3, 4... Shunter, 6, 7... Enhancer, 8... Network part, 9, 10... Magnetic field control element, 11, 12... Magnetic field correction coil, 15... Correction current formation circuit, Ea, Ec
...Side beam, Eb...Center beam, αa~α
g...Side beam raster, βa to βg...Center beam raster, Hv...Vertical deflection magnetic field, Hx...Convergence correction magnetic field.
Claims (1)
の内部に、センタービームのラスタの垂直方向の
幅を広げる磁界制御素子を設けたコンバーゼンス
補正装置において、垂直同期信号にもとづいて形
成され、前記受像管に付設された偏向ヨークに供
給される垂直偏向電流と同一の周期を有するとと
もに前記垂直偏向電流が１／２になるときに最大
振幅になる補正電流を形成する補正電流形成回路
と、前記受像管のネツク部の前記電子銃と前記偏
向ヨークの電子銃側端部との間の画面上、下位置
に設けられ、前記補正電流の供給により垂直偏向
磁界と逆方向のピンクツシヨン磁界型のコンバー
ゼンズ補正磁界を発生する１対の磁界補正コイル
とを備えたコンバーゼンス補正装置。 In a convergence correction device in which a magnetic field control element is installed inside a color picture tube having an in-line array of electron guns to widen the vertical width of the raster of the center beam, the convergence correction device is formed based on a vertical synchronization signal and is attached to the picture tube. a correction current forming circuit that forms a correction current having the same period as the vertical deflection current supplied to the deflection yoke and having a maximum amplitude when the vertical deflection current becomes 1/2; is provided at a lower position above the screen between the electron gun and the electron gun side end of the deflection yoke, and generates a convergence correction magnetic field of the pink tension magnetic field type in the opposite direction to the vertical deflection magnetic field by supplying the correction current. A convergence correction device comprising a pair of magnetic field correction coils.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15905684U JPS6175681U (en) | 1984-10-20 | 1984-10-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15905684U JPS6175681U (en) | 1984-10-20 | 1984-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6175681U true JPS6175681U (en) | 1986-05-21 |
Family
ID=30717015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15905684U Pending JPS6175681U (en) | 1984-10-20 | 1984-10-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6175681U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02126485U (en) * | 1989-03-28 | 1990-10-18 |
-
1984
- 1984-10-20 JP JP15905684U patent/JPS6175681U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02126485U (en) * | 1989-03-28 | 1990-10-18 |
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