JPS62110726U - - Google Patents
Info
- Publication number
- JPS62110726U JPS62110726U JP19911485U JP19911485U JPS62110726U JP S62110726 U JPS62110726 U JP S62110726U JP 19911485 U JP19911485 U JP 19911485U JP 19911485 U JP19911485 U JP 19911485U JP S62110726 U JPS62110726 U JP S62110726U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- holder
- drive coil
- driving device
- drives
- 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
- 229920000914 Metallic fiber Polymers 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案の一実施例を示す対物レンズ駆
動装置の斜視図、第２図は第１図を矢印で示す方
向から見た正面図、第３図は同装置の要部を示す
部分断面図、第４図はフオーカス方向の駆動コイ
ルおよびトラツキング方向の駆動コイルに電流が
流れたとき、それぞれに発生する力とワイヤに発
生する力を示す説明図、第５図は同装置に組込ま
れて対物レンズおよび保持体を支持するワイヤの
構成を示す斜視図、第６図はその正面図、第７図
は通常の等方向性弾性体の丸棒を捩つた場合にお
ける圧縮力および引張力の発生状態を示す斜視図
、第８図は第７図におけるＡ部の拡大説明図、第
９図および第１０図は対物レンズの傾き発生原因
を説明するための概略的平面図および正面図であ
る。
１……対物レンズ、２……保持体、３……フオ
ーカスコイル（フオーカス方向の駆動コイル）、
４……トラツクコイル（トラツキング方向の駆動
コイル）、１０……基台、１１ａ，１１ｂ，１１
ｃ……ヨーク、１２ａ，１２ｂ……マグネツト、
２０……ワイヤ。
Fig. 1 is a perspective view of an objective lens driving device showing an embodiment of the present invention, Fig. 2 is a front view of Fig. 1 viewed from the direction indicated by the arrow, and Fig. 3 is a portion showing the main parts of the device. 4 is an explanatory diagram showing the force generated in each of the driving coils in the focusing direction and the driving coil in the tracking direction and the force generated in the wire, and FIG. FIG. 6 is a front view of the structure of the wire that supports the objective lens and the holder, and FIG. FIG. 8 is an enlarged explanatory view of section A in FIG. 7, and FIGS. 9 and 10 are a schematic plan view and front view for explaining the cause of the tilting of the objective lens. . 1... Objective lens, 2... Holder, 3... Focus coil (drive coil in focus direction),
4... Track coil (driving coil in the tracking direction), 10... Base, 11a, 11b, 11
c...Yoke, 12a, 12b...Magnet,
20...Wire.
Claims (1)
ズと、 この対物レンズを保持する保持体と、 この保持体に嵌挿して、この保持体を支持する
互いに平行な複数本の非金属繊維から成るワイヤ
ーと、 前記保持体に固着されて、前記対物レンズをフ
オーカス方向に駆動させるフオーカス方向駆動コ
イルおよびトラツク方向に駆動するトラツク方向
駆動コイルと、 この各駆動コイルと対向するように配置されて
磁気回路を形成するマグネツトと を具備したことを特徴とする対物レンズの駆動装
置。 (2) ワイヤーは複数層からなり、かつ各層の非
金属繊維は互いに傾斜して巻付けた構造であるこ
とを特徴とする実用新案登録請求の範囲第１項記
載の対物レンズの駆動装置。[Scope of Claim for Utility Model Registration] (1) An objective lens that focuses light on an information storage medium, a holder that holds this objective lens, and mutual components that are inserted into this holder and support this holder. a wire made of a plurality of parallel non-metallic fibers; a focus direction drive coil that is fixed to the holder and drives the objective lens in the focus direction; and a track direction drive coil that drives the objective lens in the track direction; and each drive coil. 1. A driving device for an objective lens, comprising: a magnet disposed to face the magnet and forming a magnetic circuit. (2) The objective lens driving device according to claim 1, wherein the wire is composed of a plurality of layers, and the non-metallic fibers of each layer are wound at an angle to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19911485U JPS62110726U (en) | 1985-12-26 | 1985-12-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19911485U JPS62110726U (en) | 1985-12-26 | 1985-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62110726U true JPS62110726U (en) | 1987-07-15 |
Family
ID=31160435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19911485U Pending JPS62110726U (en) | 1985-12-26 | 1985-12-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62110726U (en) |
-
1985
- 1985-12-26 JP JP19911485U patent/JPS62110726U/ja active Pending
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