JPH02132318U - - Google Patents
Info
- Publication number
- JPH02132318U JPH02132318U JP3866789U JP3866789U JPH02132318U JP H02132318 U JPH02132318 U JP H02132318U JP 3866789 U JP3866789 U JP 3866789U JP 3866789 U JP3866789 U JP 3866789U JP H02132318 U JPH02132318 U JP H02132318U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- lens holder
- support stand
- spring body
- shaped leaf
- 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図は本考案の一実施例を示す対物レンズア
クチユエータの平面図、第２図は同側面図、第３
図はビーム状板ばね体の斜視図である。
２……支持台、２ａ……鳩尾状溝、３……ビー
ム状板ばね体、３ａ，３ｂ……ヒンジ部、３ｃ，
３ｄ……鳩尾状突部、４……対物レンズホルダ、
４ａ……鳩尾状溝、５……対物レンズ。
FIG. 1 is a plan view of an objective lens actuator showing an embodiment of the present invention, FIG. 2 is a side view of the same, and FIG.
The figure is a perspective view of a beam-shaped leaf spring body. 2...Support stand, 2a...Dovetail groove, 3...Beam-shaped plate spring body, 3a, 3b...Hinge portion, 3c,
3d...Dovetail projection, 4...Objective lens holder,
4a...Dovetail sulcus, 5...Objective lens.
Claims (1)
上下左右４本のビーム状板ばね体を介してトラツ
キング方向およびフオーカシング方向に弾性的に
変位可能に支持する対物レンズアクチユエータで
あつて、前記ビーム状板ばね体の断面形状をトラ
ツキング方向の厚みがフオーカシング方向の厚み
より厚い長方形断面形状とし、かつ、このビーム
状板ばね体の対物レンズホルダ側および支持台側
の端部近傍にヒンジ部を形成したことを特徴とす
る対物レンズアクチユエータ。 ２ 上記ビーム状板ばね体をアクチユエータベー
ス側の支持台に、左右のビーム状板ばね体のなす
角度が対物レンズホルダ側に向かつて広がるよう
に角度を付けて取り付けたことを特徴とする請求
項１記載の対物レンズアクチユエータ。 ３ 上記ビーム状板ばね体の対物レンズホルダ側
に連結する先端部および支持台側に連結する基端
部に鳩尾状突部を形成し、対物レンズホルダおよ
び支持台側に前記鳩尾状突部を嵌合させる鳩尾状
溝を形成したことを特徴とする請求項１または２
記載の対物レンズアクチユエータ。[Claims for Utility Model Registration] 1. An objective lens actuator that supports an objective lens holder to which an objective lens is attached so that it can be elastically displaced in the tracking direction and the focusing direction via four beam-shaped leaf springs on the upper, lower, left and right sides. The beam-shaped leaf spring body has a rectangular cross-sectional shape in which the thickness in the tracking direction is thicker than the thickness in the focusing direction, and the ends of the beam-shaped leaf spring body on the objective lens holder side and the support stand side. An objective lens actuator characterized in that a hinge portion is formed nearby. 2. A claim characterized in that the beam-shaped plate spring body is attached to a support stand on the actuator base side at an angle such that the angle formed by the left and right beam-shaped plate spring bodies widens toward the objective lens holder side. The objective lens actuator according to item 1. 3. A dovetail-like projection is formed at the distal end portion of the beam-shaped leaf spring body connected to the objective lens holder side and the base end portion connected to the support stand side, and the dovetail-like protrusion is formed on the objective lens holder and support stand side. Claim 1 or 2 characterized in that a dovetail groove for fitting is formed.
Objective lens actuator as described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3866789U JPH02132318U (en) | 1989-03-31 | 1989-03-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3866789U JPH02132318U (en) | 1989-03-31 | 1989-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02132318U true JPH02132318U (en) | 1990-11-02 |
Family
ID=31546879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3866789U Pending JPH02132318U (en) | 1989-03-31 | 1989-03-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02132318U (en) |
-
1989
- 1989-03-31 JP JP3866789U patent/JPH02132318U/ja active Pending