JPS60163516U - optical pick up - Google Patents
optical pick upInfo
- Publication number
- JPS60163516U JPS60163516U JP4828784U JP4828784U JPS60163516U JP S60163516 U JPS60163516 U JP S60163516U JP 4828784 U JP4828784 U JP 4828784U JP 4828784 U JP4828784 U JP 4828784U JP S60163516 U JPS60163516 U JP S60163516U
- Authority
- JP
- Japan
- Prior art keywords
- base
- objective lens
- optical axis
- optical
- magnetic circuit
- 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
Landscapes
- Optical Recording Or Reproduction (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は光学式ピックアップの概略構成図、第２図以下
は本考案の実施例を示すものであり、第２図は光学式ピ
ックアップの全体を示す平面図、第３図はその中央断面
図、第４図は光学式ピックアップの主要部を示す分解斜
視図である。
１・・・記録媒体（コンバク上ディスク）、２゜３、４
．６．７．９． １０・・・光学部材、７・・・プリズ
ム、８・・・対物レンズ、２１・・・鏡筒、２２・・・
トラッキングコイル、２．３・・・トラッキングばね、
２４・・・中間部材、２５・・・フォーカスコイル、２
６・・・フォーカスばね、２９，３０・・・フォーカス
コイルを挟む磁気回路、３２．３３・・・トラッキング
コイルを挟む磁気回路。Fig. 1 is a schematic configuration diagram of an optical pickup, Fig. 2 and the following show embodiments of the present invention, Fig. 2 is a plan view showing the entire optical pickup, and Fig. 3 is a central sectional view thereof. , FIG. 4 is an exploded perspective view showing the main parts of the optical pickup. 1...Recording medium (disk on top of the combo), 2゜3, 4
．． 6.7.9. DESCRIPTION OF SYMBOLS 10... Optical member, 7... Prism, 8... Objective lens, 21... Lens barrel, 22...
Tracking coil, 2.3...Tracking spring,
24... Intermediate member, 25... Focus coil, 2
6... Focus spring, 29, 30... Magnetic circuit sandwiching the focus coil, 32.33... Magnetic circuit sandwiching the tracking coil.
Claims (2)
ており、この鏡筒自体が中間部材上のばねによって対物
レンズの光軸に直交する方向へ動作自在１こ支持されて
いるとともに、この鏡筒には上記光軸の方向へ電流が流
れるトラッキングコイルが固設されており、且つ上記中
間部材はベース上のばねによって対物レンズク光軸方向
へ動作自在に支持されているとともに、中間部材には上
記光軸に直交する方向へ電流が流れるフォーカスコイル
が固設されており、さらにベース上には、上記トラッキ
ングコイルを挟む磁気回路とフォーカスコイルを挟む磁
気回路とが設置されており、且つベース上には対物レン
ズに検知ビームを送る光学部材が装備されて成る光学式
ピックアップ。(1) An objective lens facing the recording medium is held in a lens barrel, and this lens barrel itself is supported by a spring on an intermediate member so as to be movable in a direction perpendicular to the optical axis of the objective lens. A tracking coil through which a current flows in the direction of the optical axis is fixed to this lens barrel, and the intermediate member is supported by a spring on the base so as to be movable in the direction of the optical axis of the objective lens. A focus coil through which current flows in a direction perpendicular to the optical axis is fixedly installed on the base, and a magnetic circuit sandwiching the tracking coil and a magnetic circuit sandwiching the focus coil are installed on the base. An optical pickup that is equipped with an optical member on the base that sends a detection beam to the objective lens.
の上側に配置されている実用新案登録請求の範囲第（１
）項記載の光学式ピックアップ。(2) The magnetic circuit sandwiching the tracking coil is located above the optical member.
) Optical pickup described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4828784U JPS60163516U (en) | 1984-04-02 | 1984-04-02 | optical pick up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4828784U JPS60163516U (en) | 1984-04-02 | 1984-04-02 | optical pick up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60163516U true JPS60163516U (en) | 1985-10-30 |
Family
ID=30564401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4828784U Pending JPS60163516U (en) | 1984-04-02 | 1984-04-02 | optical pick up |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60163516U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5788534A (en) * | 1980-11-22 | 1982-06-02 | Matsushita Electric Ind Co Ltd | Controller for light converging position |
-
1984
- 1984-04-02 JP JP4828784U patent/JPS60163516U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5788534A (en) * | 1980-11-22 | 1982-06-02 | Matsushita Electric Ind Co Ltd | Controller for light converging position |
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