JPH02149102U - - Google Patents
Info
- Publication number
- JPH02149102U JPH02149102U JP5735589U JP5735589U JPH02149102U JP H02149102 U JPH02149102 U JP H02149102U JP 5735589 U JP5735589 U JP 5735589U JP 5735589 U JP5735589 U JP 5735589U JP H02149102 U JPH02149102 U JP H02149102U
- Authority
- JP
- Japan
- Prior art keywords
- magneto
- optical disk
- magnetic head
- piezoelectric actuator
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Description
第１図は本考案の一実施例による光磁気デイス
ク装置を示すブロツク図、第２図はその第２の実
施例を示すブロツク図、第３図はその動作の説明
に供する略線図、第４図はその第３の実施例を示
す略線図、第５図は第４の実施例を示す略線的斜
視図、第６図はそのヘツド部の構成を示す断面図
、第７図は第５の実施例を示す略線的斜視図、第
８図はその圧電アクチユエータの構成を示す断面
図、第９図はその磁気ヘツド部の構成を示す略線
的斜視図、第１０図は問題点の説明に供する略線
的断面図である。
１，１２…光磁気デイスク、２，３０…磁気ヘ
ツド、１０，４５，５０…光磁気デイスク装置、
１４，４９…光ヘツド、１６…対物レンズ、２８
…距離検出センサ、４０，８１…圧電アクチユエ
ータ、８０…磁気ヘツド部。
FIG. 1 is a block diagram showing a magneto-optical disk device according to an embodiment of the present invention, FIG. 2 is a block diagram showing a second embodiment thereof, FIG. 3 is a schematic diagram for explaining its operation, and FIG. 4 is a schematic diagram showing the third embodiment, FIG. 5 is a schematic perspective view showing the fourth embodiment, FIG. 6 is a sectional view showing the configuration of the head portion, and FIG. FIG. 8 is a sectional view showing the structure of the piezoelectric actuator, FIG. 9 is a schematic perspective view showing the structure of the magnetic head, and FIG. 10 is the problem. FIG. 3 is a schematic cross-sectional view for explaining points. 1, 12... magneto-optical disk, 2, 30... magnetic head, 10, 45, 50... magneto-optical disk device,
14, 49... Optical head, 16... Objective lens, 28
... Distance detection sensor, 40, 81... Piezoelectric actuator, 80... Magnetic head section.
Claims (1)
変位量検出手段と、 上記変位量検出手段の検出結果に応じて、上記
光磁気デイスクに対する上記磁気ヘツドの位置を
所定位置に保持する圧電アクチユエータと を備えることを特徴とする光磁気デイスク装置。 (2) 上記圧電アクチユエータは、上記磁気ヘツ
ドに加えて対物レンズを保持するようになされ、 上記磁気ヘツド及び上記対物レンズを、上記光
磁気デイスクに対して所定位置に保持するように
した ことを特徴とする実用新案登録請求の範囲第１項
に記載の光磁気デイスク装置。[Scope of Claim for Utility Model Registration] (1) A magneto-optical disk, a magnetic head, a displacement detection means for detecting the displacement of the surface of the magneto-optical disk, and according to the detection result of the displacement detection means, A magneto-optical disk device comprising: a piezoelectric actuator that holds the magnetic head at a predetermined position with respect to the magneto-optical disk. (2) The piezoelectric actuator is configured to hold an objective lens in addition to the magnetic head, and the piezoelectric actuator is configured to hold the magnetic head and the objective lens in a predetermined position with respect to the magneto-optical disk. A magneto-optical disk device according to claim 1 of the utility model registration claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989057355U JPH0734482Y2 (en) | 1989-05-18 | 1989-05-18 | Magneto-optical disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989057355U JPH0734482Y2 (en) | 1989-05-18 | 1989-05-18 | Magneto-optical disk device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02149102U true JPH02149102U (en) | 1990-12-19 |
| JPH0734482Y2 JPH0734482Y2 (en) | 1995-08-02 |
Family
ID=31581984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989057355U Expired - Lifetime JPH0734482Y2 (en) | 1989-05-18 | 1989-05-18 | Magneto-optical disk device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0734482Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01251359A (en) * | 1987-12-15 | 1989-10-06 | Seiko Epson Corp | Method for rewriting data of magneto-optical recording and reproducing device |
| JPH02126401A (en) * | 1988-11-04 | 1990-05-15 | Mitsubishi Kasei Corp | Magneto-optical recording device |
| JPH02289982A (en) * | 1988-04-06 | 1990-11-29 | Mitsubishi Electric Corp | Optical disk recording and reproducing device |
-
1989
- 1989-05-18 JP JP1989057355U patent/JPH0734482Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01251359A (en) * | 1987-12-15 | 1989-10-06 | Seiko Epson Corp | Method for rewriting data of magneto-optical recording and reproducing device |
| JPH02289982A (en) * | 1988-04-06 | 1990-11-29 | Mitsubishi Electric Corp | Optical disk recording and reproducing device |
| JPH02126401A (en) * | 1988-11-04 | 1990-05-15 | Mitsubishi Kasei Corp | Magneto-optical recording device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0734482Y2 (en) | 1995-08-02 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |