JPH0462514U - - Google Patents
Info
- Publication number
- JPH0462514U JPH0462514U JP10617590U JP10617590U JPH0462514U JP H0462514 U JPH0462514 U JP H0462514U JP 10617590 U JP10617590 U JP 10617590U JP 10617590 U JP10617590 U JP 10617590U JP H0462514 U JPH0462514 U JP H0462514U
- Authority
- JP
- Japan
- Prior art keywords
- optical
- optical system
- mirror
- movable mirror
- correction
- 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図は本考案による光デイスク装置の補正駆
動装置の実施例を示す回路図、第２図〜第５図は
本考案の原理を説明するためのものであり、第２
図は可動ミラーを含む可動部の支持状態を等価的
に示した力学モデルの正面図、第３図〜第５図は
力学モデルの運動方程式に相当するブロツク線図
、第６図は可動ミラーを使用した光デイスク装置
の部分平面図、第７図はその正面図、第８図は可
動ミラーならびにその駆動部を示す分解斜視図で
ある。
Ｈ……光ヘツド、２……ミラー、３……対物レ
ンズ、４……可動ミラー、５……可動台、６……
駆動コイル、８……板ばね、１０……マグネツト
。
FIG. 1 is a circuit diagram showing an embodiment of a correction drive device for an optical disk device according to the present invention, and FIGS. 2 to 5 are for explaining the principle of the present invention.
The figure is a front view of a dynamic model that equivalently shows the support state of the movable part including the movable mirror, Figures 3 to 5 are block diagrams corresponding to the equation of motion of the dynamic model, and Figure 6 is a front view of the dynamic model that equivalently shows the support state of the movable part including the movable mirror. FIG. 7 is a partial plan view of the optical disk device used, FIG. 7 is a front view thereof, and FIG. 8 is an exploded perspective view showing a movable mirror and its driving section. H...Optical head, 2...Mirror, 3...Objective lens, 4...Movable mirror, 5...Movable base, 6...
Drive coil, 8... leaf spring, 10... magnet.
Claims (1)
対物レンズが搭載され、固定部には、発光素子な
らびに受光素子を含む光学系と、この光学系の光
路を前記光ヘツドの方向へ反射する可動ミラーと
、前記可動ミラーを駆動して光学系から対物レン
ズに送られる光路を光デイスクの記録面のトラツ
キング補正方向へ振るミラー駆動部とが設けられ
ている光デイスク装置であつて、 前記可動ミラーが補正駆動されたときの速度を
検知する検知部と、この検知された速度に基づく
制御信号を、ミラー駆動部に設けられた駆動コイ
ルに供給される制御信号に負帰還させる回路が設
けられていることを特徴とする光デイスク装置の
補正駆動装置。[Claims for Utility Model Registration] An objective lens is mounted on the optical head that moves along the recording surface of the disk, and the fixed part includes an optical system including a light emitting element and a light receiving element, and an optical path of this optical system that directs the optical path of the optical system. An optical disk device equipped with a movable mirror that reflects light in the direction of the head, and a mirror drive unit that drives the movable mirror to swing the optical path sent from the optical system to the objective lens in the direction of tracking correction on the recording surface of the optical disk. A detection unit that detects the speed when the movable mirror is driven for correction, and a control signal based on the detected speed that is negatively connected to a control signal supplied to a drive coil provided in the mirror drive unit. A correction drive device for an optical disk device, characterized in that a feedback circuit is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10617590U JPH0462514U (en) | 1990-10-08 | 1990-10-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10617590U JPH0462514U (en) | 1990-10-08 | 1990-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0462514U true JPH0462514U (en) | 1992-05-28 |
Family
ID=31852171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10617590U Pending JPH0462514U (en) | 1990-10-08 | 1990-10-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0462514U (en) |
-
1990
- 1990-10-08 JP JP10617590U patent/JPH0462514U/ja active Pending
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