JPH0332731U - - Google Patents
Info
- Publication number
- JPH0332731U JPH0332731U JP9311689U JP9311689U JPH0332731U JP H0332731 U JPH0332731 U JP H0332731U JP 9311689 U JP9311689 U JP 9311689U JP 9311689 U JP9311689 U JP 9311689U JP H0332731 U JPH0332731 U JP H0332731U
- Authority
- JP
- Japan
- Prior art keywords
- actuator
- open
- recording medium
- magnetic circuit
- 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
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Description
第１図は本考案アクチユエータの一実施例の概
略構成図、第２図は本考案情報記録装置の一実施
例の概略構成図、第３図は磁気回路の説明のため
の模式図である。
１……光磁気デイスク（光デイスク）、２……
ピツクアツプ、３……アクチユエータ、５……デ
ジタル信号処理回路、６……スピンドルモータ、
７……サーボ回路、１１……対物レンズ、１２…
…ボビン（可動部）、１３……コイル、１４……
ヨーク（ヨーク部材）、１５……磁石。
FIG. 1 is a schematic diagram of an embodiment of the actuator of the invention, FIG. 2 is a schematic diagram of an embodiment of the information recording device of the invention, and FIG. 3 is a schematic diagram for explaining a magnetic circuit. 1... Magneto-optical disk (optical disk), 2...
pick-up, 3...actuator, 5...digital signal processing circuit, 6...spindle motor,
7... Servo circuit, 11... Objective lens, 12...
...Bobbin (movable part), 13... Coil, 14...
Yoke (yoke member), 15... magnet.
Claims (1)
報に従つて光ビームを照射する情報記録装置にお
いて、 記録媒体に臨む対物レンズを、オープンループ
磁気回路を備えて可動に保持するアクチユエータ
を具備し、該アクチユエータのオープンループ磁
気回路により記録媒体に磁界を印加することを特
徴とする情報記録装置。 (2) 光デイスクに臨ませるべき対物レンズを保
持する可動部と、オープンループ磁気回路を有し
該可動部を保持するヨーク部材とを備えることを
特徴とする光デイスク用アクチユエータ。[Claims for Utility Model Registration] (1) In an information recording device that applies a magnetic field to a recording medium and irradiates a light beam according to the information to be recorded, the objective lens facing the recording medium is equipped with an open-loop magnetic circuit. 1. An information recording device comprising an actuator movably held by an actuator, and applying a magnetic field to a recording medium by an open-loop magnetic circuit of the actuator. (2) An actuator for an optical disk characterized by comprising a movable part that holds an objective lens that is to face the optical disc, and a yoke member that has an open-loop magnetic circuit and holds the movable part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9311689U JPH0332731U (en) | 1989-08-08 | 1989-08-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9311689U JPH0332731U (en) | 1989-08-08 | 1989-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0332731U true JPH0332731U (en) | 1991-03-29 |
Family
ID=31642515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9311689U Pending JPH0332731U (en) | 1989-08-08 | 1989-08-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0332731U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59152503A (en) * | 1983-02-19 | 1984-08-31 | Canon Inc | Optical pickup device |
-
1989
- 1989-08-08 JP JP9311689U patent/JPH0332731U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59152503A (en) * | 1983-02-19 | 1984-08-31 | Canon Inc | Optical pickup device |
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