JPH01181120U - - Google Patents
Info
- Publication number
- JPH01181120U JPH01181120U JP7613488U JP7613488U JPH01181120U JP H01181120 U JPH01181120 U JP H01181120U JP 7613488 U JP7613488 U JP 7613488U JP 7613488 U JP7613488 U JP 7613488U JP H01181120 U JPH01181120 U JP H01181120U
- Authority
- JP
- Japan
- Prior art keywords
- holding member
- lens holding
- elastic support
- focusing
- recording medium
- 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)
Description
第１図は本考案になる対物レンズ駆動装置に適
用されるレンズ保持部材を支持する弾性支持部の
分解斜視図、第２図は対物レンズ駆動装置の側面
図、第３図は同平面図、第４図は同側面図、第５
図は従来の対物レンズ駆動装置の断面図である。
２１…情報記録媒体、２２…対物レンズ、２３
…レンズ保持部材、２４…弾性支持部、２５…基
台、２８…第１の板ばね、２９…第２の板ばね、
３０…中間部材、３１ａ，３１ｂ，３３ａ，３３
ｂ…ダンパ部材（緩衝部材）。
FIG. 1 is an exploded perspective view of an elastic support member that supports a lens holding member applied to an objective lens drive device according to the present invention, FIG. 2 is a side view of the objective lens drive device, and FIG. 3 is a plan view of the same. Figure 4 is the same side view, Figure 5
The figure is a sectional view of a conventional objective lens driving device. 21... Information recording medium, 22... Objective lens, 23
...Lens holding member, 24...Elastic support part, 25...Base, 28...First leaf spring, 29...Second leaf spring,
30...Intermediate member, 31a, 31b, 33a, 33
b...damper member (buffer member).
Claims (1)
保持するレンズ保持部材と、 このレンズ保持部材を前記情報記録媒体の記録
面に対してフオーカシング方向に変位させるよう
取り付けた上下一対の第１の板ばねを緩衝部材を
介して中間部材に固定すると共に、前記レンズ保
持部材をトラツキング方向に変位させるよう前記
第１の板ばねと直交して前記中間部材に緩衝部材
を介して固定した左右一対の第２の板ばねにより
前記レンズ保持部材を囲繞支持した弾性支持部と
、 前記弾性支持部の第２の板ばねの遊端部を固定
する起立片を備えた磁性体からなる基台と、 前記レンズ保持部材をフオーカシング方向に駆
動するフオーカシング用コイルと、 前記レンズ保持部材をトラツキング方向に駆動
するトラツキング用コイルと、 を具備してなる対物レンズ駆動装置。[Claims for Utility Model Registration] A lens holding member that holds an objective lens that focuses light on an information recording medium, and a lens holding member that is attached to be displaced in a focusing direction with respect to the recording surface of the information recording medium. A pair of upper and lower first leaf springs are fixed to the intermediate member via a buffer member, and a buffer member is attached to the intermediate member perpendicularly to the first leaf spring so as to displace the lens holding member in the tracking direction. an elastic support section that surrounds and supports the lens holding member by a pair of left and right second leaf springs fixed therebetween, and a magnetic body that includes an upright piece that fixes a free end of the second leaf spring of the elastic support section. An objective lens driving device comprising: a base comprising: a focusing coil that drives the lens holding member in a focusing direction; and a tracking coil that drives the lens holding member in a tracking direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7613488U JPH01181120U (en) | 1988-06-08 | 1988-06-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7613488U JPH01181120U (en) | 1988-06-08 | 1988-06-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01181120U true JPH01181120U (en) | 1989-12-27 |
Family
ID=31301179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7613488U Pending JPH01181120U (en) | 1988-06-08 | 1988-06-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01181120U (en) |
-
1988
- 1988-06-08 JP JP7613488U patent/JPH01181120U/ja active Pending
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