JPS58165738U - Objective lens drive device - Google Patents
Objective lens drive deviceInfo
- Publication number
- JPS58165738U JPS58165738U JP6125982U JP6125982U JPS58165738U JP S58165738 U JPS58165738 U JP S58165738U JP 6125982 U JP6125982 U JP 6125982U JP 6125982 U JP6125982 U JP 6125982U JP S58165738 U JPS58165738 U JP S58165738U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- optical axis
- driving
- driven
- coil
- 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図は本考案の実施例の二次元対物レンズ駆動装置の
展開構造図、第２図は斜送親図、第３図は磁気回路を示
す構造歯、第４図は本平面図、第５図は断面図、第６図
は振動周波数特性例である。
２・・・・・・基台、３・・・・・・ヨークプレート、
４・・・・・・磁石、６・・・・・・磁気空隙、１０・
・・・・・対物レンズ、１２・・・・・・フォーカシン
グコイル、１３・・・・・・トラッキングコイル。Fig. 1 is a developed structure diagram of a two-dimensional objective lens drive device according to an embodiment of the present invention, Fig. 2 is a diagonal feed diagram, Fig. 3 is a structural tooth showing a magnetic circuit, Fig. 4 is a main plan view, and Fig. 4 is a plan view of the main structure. FIG. 5 is a cross-sectional view, and FIG. 6 is an example of vibration frequency characteristics. 2...Base, 3...Yoke plate,
4...Magnet, 6...Magnetic gap, 10.
...Objective lens, 12...Focusing coil, 13...Tracking coil.
Claims (1)
物レンズの焦点位置を制御するための対物レンズ駆動装
置において、対物レンズを含む被駆動体を対応する電気
信号により光軸と垂直に駆動するための駆動コイノーが
、永久磁石による磁界に位置しており、同一の磁界には
光軸方向に駆動するための駆動コイルを有し、光軸方向
の変位内の磁界内に、光軸と垂直に駆動するコイルが存
在することを特徴とする対物レンズ駆動装置。 ２ 光軸と垂直もしくは光軸方向に駆動する前記駆動コ
イルが、各々の方向に変位する板バネ等の支持バネから
略等距離に位置する実用新案登録請求の範囲第１項記載
の対物レンズ駆動装置。[Claims for Utility Model Registration] 1. In an objective lens driving device for reading information optically recorded on a recording medium and controlling the focal position of an objective lens, a driven object including the objective lens is driven by a corresponding electric signal. A driving coil for driving perpendicularly to the optical axis is located in a magnetic field by a permanent magnet, and a driving coil for driving in the optical axis direction is located in the same magnetic field, and the displacement in the optical axis direction is An objective lens driving device characterized by a coil that is driven perpendicular to an optical axis in a magnetic field. 2. The objective lens drive according to claim 1, wherein the drive coil that is driven perpendicularly to the optical axis or in the direction of the optical axis is located approximately equidistant from a support spring such as a leaf spring that is displaced in each direction. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6125982U JPS58165738U (en) | 1982-04-28 | 1982-04-28 | Objective lens drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6125982U JPS58165738U (en) | 1982-04-28 | 1982-04-28 | Objective lens drive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58165738U true JPS58165738U (en) | 1983-11-04 |
Family
ID=30071465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6125982U Pending JPS58165738U (en) | 1982-04-28 | 1982-04-28 | Objective lens drive device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58165738U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5982338U (en) * | 1982-11-26 | 1984-06-04 | パイオニア株式会社 | Pickup device for optical information reading device |
| JPH0296932A (en) * | 1988-10-03 | 1990-04-09 | Mitsubishi Electric Corp | Objective lens driving device |
-
1982
- 1982-04-28 JP JP6125982U patent/JPS58165738U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5982338U (en) * | 1982-11-26 | 1984-06-04 | パイオニア株式会社 | Pickup device for optical information reading device |
| JPH0296932A (en) * | 1988-10-03 | 1990-04-09 | Mitsubishi Electric Corp | Objective lens driving device |
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