JPH042320U - - Google Patents
Info
- Publication number
- JPH042320U JPH042320U JP4201590U JP4201590U JPH042320U JP H042320 U JPH042320 U JP H042320U JP 4201590 U JP4201590 U JP 4201590U JP 4201590 U JP4201590 U JP 4201590U JP H042320 U JPH042320 U JP H042320U
- Authority
- JP
- Japan
- Prior art keywords
- carriage
- speed control
- optical disk
- linear motor
- linear motors
- 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 description 6
- 238000010586 diagram Methods 0.000 description 4
Description
第１図は本考案に係る光デイスク装置のアクチ
ユエータの概略構成を示す図、第２図は本考案に
係るアクチユエータの速度制御回路を示すブロツ
ク図、第３図ａ及び第４図ａは従来の光デイスク
装置におけるアクチユエータの概略構成を示す図
、第３図ｂ及び第４図ｂは従来用いられていたア
クチユエータの速度制御回路を示す図である。
１７……差動アンプ、２２……対物レンズ、２
３……キヤリツジ、２５ａｂ……リニアモータコ
イル、２５ｃｄ……コア、２５ｅｆ……永久磁石
、２７……軸受、２９……シヤフト、Ｓ１乃至Ｓ
５……スイツチ、２１……ドライバ、２４……ア
ンプ。
FIG. 1 is a diagram showing a schematic configuration of an actuator of an optical disk device according to the present invention, FIG. 2 is a block diagram showing a speed control circuit of an actuator according to the present invention, and FIGS. 3a and 4a are conventional FIGS. 3B and 4B are diagrams showing a schematic configuration of an actuator in an optical disk device, and are diagrams showing a conventional speed control circuit for the actuator. 17...Differential amplifier, 22...Objective lens, 2
3...Carriage, 25ab...Linear motor coil, 25cd...Core, 25ef...Permanent magnet, 27...Bearing, 29...Shaft, S1 to S
5...Switch, 21...Driver, 24...Amplifier.
Claims (1)
て、リニアモータを使用したものにおいて、レー
ザー光を光記憶媒体の所定のトラツク及びセクタ
に集束せしめるための対物レンズを載置したキヤ
リツジの両端にリニアモータを設け、トラツキン
グ動作時には前記両端のリニアモータを共に駆動
することにより前記キヤリツジのねじれに基づき
光軸ズレが生じることを防止すると共に、シーク
動作時には前記キヤリツジの両端に設けられたリ
ニアモータのうち一方を速度制御用に、他方を駆
動用に切替え使用することにより速度制御を行う
ことを可能にしたことを特徴とする光デイスクド
ライブ装置。 In an actuator for an optical disk device that uses a linear motor, the linear motor is provided at both ends of a carriage on which an objective lens is mounted to focus a laser beam onto a predetermined track and sector of an optical storage medium. During operation, the linear motors at both ends of the carriage are driven together to prevent optical axis deviation from occurring due to twisting of the carriage, and during seek operation, one of the linear motors provided at both ends of the carriage is used for speed control. An optical disk drive device characterized in that speed control can be performed by switching and using the other for driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4201590U JPH042320U (en) | 1990-04-19 | 1990-04-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4201590U JPH042320U (en) | 1990-04-19 | 1990-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH042320U true JPH042320U (en) | 1992-01-09 |
Family
ID=31553186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4201590U Pending JPH042320U (en) | 1990-04-19 | 1990-04-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH042320U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR970063171A (en) * | 1996-02-28 | 1997-09-12 | 이데이 노부유키 | Disk Units and Disk Access Methods |
-
1990
- 1990-04-19 JP JP4201590U patent/JPH042320U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR970063171A (en) * | 1996-02-28 | 1997-09-12 | 이데이 노부유키 | Disk Units and Disk Access Methods |
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