JPS63200228U - - Google Patents
Info
- Publication number
- JPS63200228U JPS63200228U JP9062987U JP9062987U JPS63200228U JP S63200228 U JPS63200228 U JP S63200228U JP 9062987 U JP9062987 U JP 9062987U JP 9062987 U JP9062987 U JP 9062987U JP S63200228 U JPS63200228 U JP S63200228U
- Authority
- JP
- Japan
- Prior art keywords
- movable part
- objective lens
- leaf spring
- focusing direction
- tracking
- 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 1
- 238000010586 diagram Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図ないし第５図は本考案の対物レンズ駆動
装置の実施例を示し、第１図は第１の実施例の斜
視図、第２図はその板ばねの振動状態の説明図、
第３図は第２の実施例の斜視図、第４図はその板
ばねの断面図で、Ａは第３図のＡ―Ａ視、Ｂは第
３図のＢ―Ｂ視で、第５図は第３の実施例の板ば
ねの斜視図であり、第６図は本考案の前提となる
一般的な対物レンズ駆動装置の斜視図、第７図は
その板ばねの振動状態の説明図で、Ａは１次共振
、Ｂは２次共振、Ｃは３次共振である。
１１……基台、１２……第１の板ばね、１３…
…中間可動部、１４……第２の板ばね、１５……
最終可動部、１６……対物レンズ、２１……剛体
部を形成する補強板、２２……剛体部を形成する
ビード、２３……剛体部を形成する補強縁。
1 to 5 show an embodiment of the objective lens driving device of the present invention, FIG. 1 is a perspective view of the first embodiment, FIG. 2 is an explanatory diagram of the vibration state of the leaf spring,
FIG. 3 is a perspective view of the second embodiment, and FIG. 4 is a cross-sectional view of the leaf spring. The figure is a perspective view of the leaf spring of the third embodiment, Figure 6 is a perspective view of a general objective lens driving device that is the premise of the present invention, and Figure 7 is an explanatory diagram of the vibration state of the leaf spring. Here, A is primary resonance, B is secondary resonance, and C is tertiary resonance. 11... Base, 12... First leaf spring, 13...
...Intermediate movable part, 14...Second leaf spring, 15...
Final movable part, 16...Objective lens, 21...Reinforcement plate forming a rigid body part, 22...Bead forming a rigid body part, 23...Reinforcement edge forming a rigid body part.
Claims (1)
ーカシング方向及びトラツキング方向の一方に移
動可能に支持し、この中間可動部に第２の板ばね
を介して最終可動部をフオーカシング方向及びト
ラツキング方向の他方に移動可能に支持し、この
最終可動部に対物レンズをフオーカシング方向に
光軸を一致させて取付け、この最終可動部を磁気
駆動機構によりフオーカシング方向及びトラツキ
ング方向に移動させる対物レンズ駆動装置であつ
て、 上記第１及び第２の板ばねの中間部に剛体部を
形成したことを特徴とする対物レンズ駆動装置。[Claims for Utility Model Registration] An intermediate movable part is supported on a base so as to be movable in either the focusing direction or the tracking direction via a first leaf spring, and a second leaf spring is connected to the intermediate movable part. A final movable part is supported movably in the other of the focusing direction and the tracking direction, an objective lens is attached to this final movable part with its optical axis aligned in the focusing direction, and this final movable part is moved in the focusing direction and tracking by a magnetic drive mechanism. What is claimed is: 1. An objective lens drive device for moving an objective lens in a direction, the objective lens drive device being characterized in that a rigid body portion is formed at an intermediate portion between the first and second leaf springs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9062987U JPS63200228U (en) | 1987-06-12 | 1987-06-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9062987U JPS63200228U (en) | 1987-06-12 | 1987-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63200228U true JPS63200228U (en) | 1988-12-23 |
Family
ID=30950671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9062987U Pending JPS63200228U (en) | 1987-06-12 | 1987-06-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63200228U (en) |
-
1987
- 1987-06-12 JP JP9062987U patent/JPS63200228U/ja active Pending