JPS6312973U - - Google Patents
Info
- Publication number
- JPS6312973U JPS6312973U JP10644186U JP10644186U JPS6312973U JP S6312973 U JPS6312973 U JP S6312973U JP 10644186 U JP10644186 U JP 10644186U JP 10644186 U JP10644186 U JP 10644186U JP S6312973 U JPS6312973 U JP S6312973U
- Authority
- JP
- Japan
- Prior art keywords
- focus
- voltage
- circuit
- parabolic voltage
- parabolic
- 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
- 238000010894 electron beam technology Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Details Of Television Scanning (AREA)
Description
第１図は、この考案のダイナミツクフオーカス
回路の一実施例を示す回路図、第２図は、第１図
に示した回路各部の信号波形図、第３図は、従来
のダイナミツクフオーカス回路の一例を示す回路
図、第４図は、一般の受像管におけるフオーカス
電圧特性を示す図である。
４……フオーカス電圧発生回路、５……フオー
カス電極、６……受像管、８ａ……垂直パラボラ
電圧発生回路、１１……ダイナミツクフオーカス
回路、１２……水平パラボラ電圧重畳回路、１２
ａ……振幅変調回路。
Fig. 1 is a circuit diagram showing an embodiment of the dynamic focus circuit of this invention, Fig. 2 is a signal waveform diagram of each part of the circuit shown in Fig. 1, and Fig. 3 is a circuit diagram of a conventional dynamic focus circuit. FIG. 4, a circuit diagram showing an example of a focus circuit, is a diagram showing focus voltage characteristics in a general picture tube. 4... Focus voltage generation circuit, 5... Focus electrode, 6... Picture tube, 8a... Vertical parabolic voltage generation circuit, 11... Dynamic focus circuit, 12... Horizontal parabolic voltage superimposition circuit, 12
a... Amplitude modulation circuit.
Claims (1)
画面上に集束させるためのフオーカス電極に、一
定のフオーカス電圧を印加するフオーカス電圧発
生回路と、このフオーカス電圧発生回路の出力に
水平偏向周期のパラボラ電圧と垂直偏向周期のパ
ラボラ電圧とを重畳するパラボラ電圧重畳回路と
、このパラボラ電圧重畳回路が重畳しようとする
水平偏向周期のパラボラ電圧を垂直偏向周期のパ
ラボラ電圧で振幅変調する振幅変調回路とを設け
てなるダイナミツクフオーカス回路。 A focus voltage generation circuit applies a constant focus voltage to a focus electrode to focus an electron beam deflected in both horizontal and vertical directions onto a screen, and a parabolic voltage with a horizontal deflection period is applied to the output of this focus voltage generation circuit. and a parabolic voltage superimposition circuit that superimposes the parabolic voltage of the vertical deflection period, and an amplitude modulation circuit that modulates the amplitude of the parabolic voltage of the horizontal deflection period that the parabolic voltage superimposition circuit attempts to superimpose with the parabolic voltage of the vertical deflection period. Dynamic focus circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10644186U JPS6312973U (en) | 1986-07-11 | 1986-07-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10644186U JPS6312973U (en) | 1986-07-11 | 1986-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6312973U true JPS6312973U (en) | 1988-01-28 |
Family
ID=30981803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10644186U Pending JPS6312973U (en) | 1986-07-11 | 1986-07-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6312973U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01168168A (en) * | 1987-12-23 | 1989-07-03 | Sharp Corp | Dynamic focus circuit |
-
1986
- 1986-07-11 JP JP10644186U patent/JPS6312973U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01168168A (en) * | 1987-12-23 | 1989-07-03 | Sharp Corp | Dynamic focus circuit |