JPS62124620U - - Google Patents
Info
- Publication number
- JPS62124620U JPS62124620U JP1209086U JP1209086U JPS62124620U JP S62124620 U JPS62124620 U JP S62124620U JP 1209086 U JP1209086 U JP 1209086U JP 1209086 U JP1209086 U JP 1209086U JP S62124620 U JPS62124620 U JP S62124620U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- focus coil
- correction drive
- optical axis
- magnetism generating
- 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
- 230000003287 optical effect Effects 0.000 claims description 6
- 230000005389 magnetism Effects 0.000 claims description 4
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図〜第４図は本考案の実施例を示すもので
あり、第１図は光学式ピツクアツプの補正駆動装
置の一部を示す斜視図、第２図は光学式ピツクア
ツプの補正駆動装置の平面図、第３図はフオーカ
スコイルの磁気発生部材に対する対向面を示す平
面図、第４図はその側面図、第５図は従来の光学
式ピツクアツプの補正駆動装置の原理を示す平面
図、第６図は第５図に示す状態から可動部材がト
ラツキング方向へ移動した状態を示す平面図、第
７図は第５図の側面図、第８図は第５図の補正駆
動装置のコイル部分を示す側面図である。
２１……対物レンズ、２２……可動部材、２９
……板ばね、３２……ビームスプリツタ、３４…
…発光素子、３５……受光素子、４１……フオー
カスコイル、４１ａ……フオーカスコイルの対向
面、４２……トラツキングコイル、４５，４６…
…磁気発生部材。
1 to 4 show an embodiment of the present invention, FIG. 1 is a perspective view showing a part of the correction drive device for an optical pickup, and FIG. 2 is a perspective view of a correction drive device for an optical pickup. 3 is a plan view showing the surface of the focus coil facing the magnetism generating member, FIG. 4 is a side view thereof, and FIG. 5 is a plan view showing the principle of a conventional correction drive device for an optical pickup. 6 is a plan view showing a state in which the movable member has moved in the tracking direction from the state shown in FIG. 5, FIG. 7 is a side view of FIG. 5, and FIG. 8 is a coil portion of the correction drive device shown in FIG. 5. FIG. 21... Objective lens, 22... Movable member, 29
...Plate spring, 32...Beam splitter, 34...
...Light emitting element, 35... Light receiving element, 41... Focus coil, 41a... Opposing surface of focus coil, 42... Tracking coil, 45, 46...
...Magnetism generating member.
Claims (1)
可動部材が、対物レンズの光軸方向に沿うフオー
カス方向と光軸に直交するトラツキング方向とへ
動作自在に支持されているとともに、対物レンズ
の光軸に交叉する方向へ電流が流れるように巻か
れたフオーカスコイルが前記可動部材に設けられ
ており、且つベース側にはフオーカスコイルに流
れる電流に交叉する磁界を発生する磁気発生部材
が設けられている光学式ピツクアツプの補正駆動
装置において、前記フオーカスコイルの磁気発生
部材に対する対向面が、対物レンズを挟む位置に
てトラツキング動作方向と直交する方向に形成さ
れていることを特徴とする光学式ピツクアツプの
補正駆動装置。 A movable member holding an objective lens facing the disk is supported so as to be movable in a focusing direction along the optical axis direction of the objective lens and a tracking direction perpendicular to the optical axis. The movable member is provided with a focus coil wound so that current flows in directions that intersect with each other, and a magnetism generating member that generates a magnetic field that intersects the current flowing in the focus coil is provided on the base side. In the optical pick-up correction drive device, the surface of the focus coil facing the magnetism generating member is formed in a direction perpendicular to the tracking operation direction at a position sandwiching the objective lens. correction drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1209086U JPS62124620U (en) | 1986-01-29 | 1986-01-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1209086U JPS62124620U (en) | 1986-01-29 | 1986-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62124620U true JPS62124620U (en) | 1987-08-07 |
Family
ID=30799899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1209086U Pending JPS62124620U (en) | 1986-01-29 | 1986-01-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62124620U (en) |
-
1986
- 1986-01-29 JP JP1209086U patent/JPS62124620U/ja active Pending