JPH01133226U - - Google Patents
Info
- Publication number
- JPH01133226U JPH01133226U JP2478888U JP2478888U JPH01133226U JP H01133226 U JPH01133226 U JP H01133226U JP 2478888 U JP2478888 U JP 2478888U JP 2478888 U JP2478888 U JP 2478888U JP H01133226 U JPH01133226 U JP H01133226U
- Authority
- JP
- Japan
- Prior art keywords
- hinge
- focusing
- rectangular frame
- tracking
- objective lens
- 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
- 239000000725 suspension Substances 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims 1
Description
第１図は本考案の対物レンズ駆動装置の一実施
例の一部を断面にした側面図、第２図はその固定
部分の斜視図、第３図はその可動部分の分解斜視
図、第４図はそのサスペンシヨン部材の側面図で
ある。
１……固定部としてのベース、１ｂ，１ｃ……
ヨーク、２……マグネツト、３……可動部材、４
……対物レンズを内蔵した対物レンズユニツト、
６……フオーカシングコイル、７……トラツキン
グコイル、８……サスペンシヨン部材、８ａ……
矩形枠部、８ｂ，８ｃ，８ｆ……ヒンジ部、８ｄ
，８ｅ……係止部、８ｇ……連結杆。
FIG. 1 is a partially sectional side view of an embodiment of the objective lens driving device of the present invention, FIG. 2 is a perspective view of its fixed part, FIG. 3 is an exploded perspective view of its movable part, and FIG. The figure is a side view of the suspension member. 1...Base as a fixed part, 1b, 1c...
Yoke, 2... Magnet, 3... Movable member, 4
...Objective lens unit with built-in objective lens,
6... Focusing coil, 7... Tracking coil, 8... Suspension member, 8a...
Rectangular frame portion, 8b, 8c, 8f...Hinge portion, 8d
, 8e...Locking portion, 8g...Connecting rod.
Claims (1)
をフオーカシング方向及びトラツキング方向に移
動可能に支持し、この可動部材に対物レンズをフ
オーカシング方向に光軸を一致させて取付けると
ともにフオーカシングコイル及びトラツキングコ
イルを取付け、このフオーカシングコイル及びト
ラツキングコイルに対するマグネツト及びヨーク
を固定部に設けた対物レンズ駆動装置であつて、 上記サスペンシヨン部材は、矩形枠部の対向す
る２辺の複数箇所にフオーカシング方向及びトラ
ツキング方向のいずれか一方に折曲自在の第１の
ヒンジ部を形成し、この矩形枠部の他の対向する
２辺の外側部にフオーカシング方向及びトラツキ
ング方向のいずれか他方に折曲自在の第２のヒン
ジ部を介して上記固定部に対する係止部及び上記
可動部材に対する係止部を一体形成し、上記矩形
枠部の第１のヒンジ部を設けた対向する２辺を第
３のヒンジ部を介して矩形枠部の他の対向する２
辺と平行な連結杆で連結したことを特徴とする対
物レンズ駆動装置。[Claims for Utility Model Registration] A movable member is supported on the fixed part via a suspension member so as to be movable in the focusing direction and the tracking direction, and an objective lens is attached to the movable member with its optical axis aligned in the focusing direction. An objective lens drive device in which a focusing coil and a tracking coil are attached, and a magnet and a yoke for the focusing coil and tracking coil are provided in a fixed part, and the suspension member is arranged in a rectangular frame part facing each other. A first hinge part that can be bent in either the focusing direction or the tracking direction is formed at a plurality of locations on two sides, and a first hinge part that can be bent in the focusing direction or the tracking direction is formed on the outer side of the other two opposing sides of this rectangular frame part. A locking portion for the fixed portion and a locking portion for the movable member are integrally formed on one of the other through a bendable second hinge portion, and a first hinge portion of the rectangular frame portion is provided. The other two opposing sides of the rectangular frame are connected via the third hinge.
An objective lens drive device characterized by being connected by a connecting rod parallel to the sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2478888U JPH01133226U (en) | 1988-02-26 | 1988-02-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2478888U JPH01133226U (en) | 1988-02-26 | 1988-02-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01133226U true JPH01133226U (en) | 1989-09-11 |
Family
ID=31527739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2478888U Pending JPH01133226U (en) | 1988-02-26 | 1988-02-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01133226U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60209935A (en) * | 1984-03-31 | 1985-10-22 | Toshiba Corp | Optical head device |
| JPS6240363B2 (en) * | 1977-09-29 | 1987-08-27 | Union Carbide Corp | |
| JPH0222451B2 (en) * | 1982-08-30 | 1990-05-18 | Dainippon Printing Co Ltd |
-
1988
- 1988-02-26 JP JP2478888U patent/JPH01133226U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6240363B2 (en) * | 1977-09-29 | 1987-08-27 | Union Carbide Corp | |
| JPH0222451B2 (en) * | 1982-08-30 | 1990-05-18 | Dainippon Printing Co Ltd | |
| JPS60209935A (en) * | 1984-03-31 | 1985-10-22 | Toshiba Corp | Optical head device |