JPS6121021U - Objective lens drive device for optical information recording device - Google Patents
Objective lens drive device for optical information recording deviceInfo
- Publication number
- JPS6121021U JPS6121021U JP10515784U JP10515784U JPS6121021U JP S6121021 U JPS6121021 U JP S6121021U JP 10515784 U JP10515784 U JP 10515784U JP 10515784 U JP10515784 U JP 10515784U JP S6121021 U JPS6121021 U JP S6121021U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- information recording
- optical information
- drive device
- lens drive
- 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図は従来例に係る光情報記録装置の一部切欠縦断面
図、第２図はその磁気回路の模式図、第３図は本考案に
係る装置における磁気回路の模式図である。
１・・・対物レンズ、２・・・支持枠、５・・・移動枠
、６・・・駆動コイル、１２・・・軟磁性保護カバー。
第１図
ＺＩｌｏ２３４
５FIG. 1 is a partially cutaway vertical sectional view of a conventional optical information recording device, FIG. 2 is a schematic diagram of its magnetic circuit, and FIG. 3 is a schematic diagram of the magnetic circuit in the device according to the present invention. DESCRIPTION OF SYMBOLS 1... Objective lens, 2... Support frame, 5... Moving frame, 6... Drive coil, 12... Soft magnetic protective cover. Figure 1 ZIlo234 5
Claims (1)
と垂直方向に光軸を備えた対物レンズと、この対物レン
ズを中心部に固定した支持枠と、磁界中に配設され且つ
この支持枠に巻回されたコイルとからなり、このコイル
に流す電流に応じて前記対物レンズを多次元に移動可能
とした対物レンズ、駆動装置において、磁界を発生する
磁石、ヨーク、前記移動枠等を被覆し、中央の開口穴よ
り対物レンズ部を露出する保護カバーの材質ｌｌ
８ ７ ６ ＼ ９ を軟磁性材料としてことを特徴とする光情報記録装置の
対物レンズ駆動装置。[Claims for Utility Model Registration] An objective lens disposed facing an optical information recording medium and having an optical axis perpendicular to the surface of the recording medium, a support frame fixed to the center of the objective lens, A magnetic field is generated in an objective lens and drive device that is composed of a coil arranged in a magnetic field and wound around this support frame, and that allows the objective lens to be moved in multiple dimensions according to a current flowing through the coil. The material of the protective cover that covers the magnet, yoke, the moving frame, etc. and exposes the objective lens portion through the central opening hole.
An objective lens driving device for an optical information recording device, characterized in that 8 7 6 \ 9 is used as a soft magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10515784U JPS6121021U (en) | 1984-07-13 | 1984-07-13 | Objective lens drive device for optical information recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10515784U JPS6121021U (en) | 1984-07-13 | 1984-07-13 | Objective lens drive device for optical information recording device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6121021U true JPS6121021U (en) | 1986-02-06 |
Family
ID=30664492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10515784U Pending JPS6121021U (en) | 1984-07-13 | 1984-07-13 | Objective lens drive device for optical information recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6121021U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5211541U (en) * | 1975-07-14 | 1977-01-26 |
-
1984
- 1984-07-13 JP JP10515784U patent/JPS6121021U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5211541U (en) * | 1975-07-14 | 1977-01-26 |
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