JPH0211518U - - Google Patents
Info
- Publication number
- JPH0211518U JPH0211518U JP8601088U JP8601088U JPH0211518U JP H0211518 U JPH0211518 U JP H0211518U JP 8601088 U JP8601088 U JP 8601088U JP 8601088 U JP8601088 U JP 8601088U JP H0211518 U JPH0211518 U JP H0211518U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- tracking
- coil
- holder
- 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
- 230000003287 optical effect Effects 0.000 claims 4
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案の一実施例の斜視図、第２図は
従来のレンズアクチユエータの一例の斜視図であ
る。
１……集光レンズ、２……保持体、３ａ〜３ｄ
……ワイヤばね、４……固定部、５……フオーカ
スコイル、６……トラツキングコイル、７ａ，７
ｂ……永久磁石、８ａ〜８ｄ……ヨーク。
FIG. 1 is a perspective view of an embodiment of the present invention, and FIG. 2 is a perspective view of an example of a conventional lens actuator. 1... Condenser lens, 2... Holder, 3a to 3d
... Wire spring, 4 ... Fixed part, 5 ... Focus coil, 6 ... Tracking coil, 7a, 7
b...Permanent magnet, 8a-8d...Yoke.
Claims (1)
レンズと、この集光レンズを保持する保持体と、
この保持体を光軸と平行なフオーカス方向と光軸
と垂直なトラツキング方向の二軸に動作自在とな
るように支持する複数のワイヤばねからなる支持
部材と、前記保持体に固着されて前記集光レンズ
をフオーカス方向に駆動させるフオーカスコイル
とトラツキング方向に駆動させるトラツキングコ
イルと、前記フオーカスコイル及びトラツキング
コイルを挾んで対向して配置されて磁気回路を形
成する１対の永久磁石とを有するレンズアクチユ
エータにおいて、前記支持部材の中間に挿入され
前記支持部材のねじれを抑止する薄板を含むこと
を特徴とするレンズアクチユエータ。 a condensing lens that condenses laser light onto the surface of an information recording medium; a holder that holds the condensing lens;
A support member consisting of a plurality of wire springs supports the holder so as to be movable in two axes, a focusing direction parallel to the optical axis and a tracking direction perpendicular to the optical axis; A focus coil that drives the optical lens in a focusing direction, a tracking coil that drives the optical lens in a tracking direction, and a pair of permanent magnets that are disposed facing each other with the focus coil and the tracking coil sandwiched therebetween to form a magnetic circuit. A lens actuator comprising: a thin plate inserted between the supporting members to prevent twisting of the supporting members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8601088U JPH0211518U (en) | 1988-06-28 | 1988-06-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8601088U JPH0211518U (en) | 1988-06-28 | 1988-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0211518U true JPH0211518U (en) | 1990-01-24 |
Family
ID=31310663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8601088U Pending JPH0211518U (en) | 1988-06-28 | 1988-06-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0211518U (en) |
-
1988
- 1988-06-28 JP JP8601088U patent/JPH0211518U/ja active Pending
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