JPH02101325U - - Google Patents
Info
- Publication number
- JPH02101325U JPH02101325U JP863989U JP863989U JPH02101325U JP H02101325 U JPH02101325 U JP H02101325U JP 863989 U JP863989 U JP 863989U JP 863989 U JP863989 U JP 863989U JP H02101325 U JPH02101325 U JP H02101325U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- optical axis
- bobbin
- magnetic circuit
- circuit section
- 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
- 230000003287 optical effect Effects 0.000 claims description 6
- 230000004907 flux Effects 0.000 description 1
Description
第１図は本考案に係る対物レンズ駆動装置を光
デイスクとの関係で示す断面図であり、第２図は
上記対物レンズ駆動装置の斜視図であり、第３図
はその分解斜視図である。第４図は光磁気記録再
生装置を示す概略側面図であり、第５図は従来の
対物レンズ駆動装置の磁気回路部の磁束の状態を
模式的に示す概略側面図である。
１…光デイスク、２１…対物レンズ、２２…ボ
ビン、２３…対物レンズ支持機構、２４…フオー
カス制御用駆動コイル、２５…トラツキング制御
用駆動コイル、２６，２７…マグネツト、２８…
磁気回路部。
FIG. 1 is a sectional view showing the objective lens driving device according to the present invention in relation to an optical disk, FIG. 2 is a perspective view of the objective lens driving device, and FIG. 3 is an exploded perspective view thereof. . FIG. 4 is a schematic side view showing a magneto-optical recording/reproducing device, and FIG. 5 is a schematic side view schematically showing a state of magnetic flux in a magnetic circuit section of a conventional objective lens driving device. DESCRIPTION OF SYMBOLS 1... Optical disk, 21... Objective lens, 22... Bobbin, 23... Objective lens support mechanism, 24... Drive coil for focus control, 25... Drive coil for tracking control, 26, 27... Magnet, 28...
Magnetic circuit section.
Claims (1)
向及び上記光軸方向と直交する方向に移動変位可
能に支持する対物レンズ支持機構と、 上記対物レンズを光軸と平行な方向及び上記光
軸方向と直交する方向に移動変位させる駆動力を
発生させる駆動コイルと、 上記ボビンを挾んで相対向して配設される一対
のマグネツトを有する磁気回路部とを有し、 上記磁気回路部を構成する一対のマグネツトは
、相対向する着磁面が異極とされてなる光磁気記
録再生装置用の対物レンズ駆動装置。[Claims for Utility Model Registration] An objective lens, a bobbin that holds the objective lens, and a bobbin that supports the bobbin so that it can be moved in a direction parallel to the optical axis of the objective lens and in a direction perpendicular to the optical axis direction. an objective lens support mechanism; a drive coil that generates a driving force for moving and displacing the objective lens in a direction parallel to the optical axis and in a direction perpendicular to the optical axis direction; an objective lens drive device for a magneto-optical recording/reproducing device, the objective lens driving device having a magnetic circuit section having a pair of magnets, the pair of magnets constituting the magnetic circuit section having opposing magnetized surfaces of different polarities. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989008639U JPH087537Y2 (en) | 1989-01-27 | 1989-01-27 | Objective lens driving device for magneto-optical recording / reproducing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989008639U JPH087537Y2 (en) | 1989-01-27 | 1989-01-27 | Objective lens driving device for magneto-optical recording / reproducing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02101325U true JPH02101325U (en) | 1990-08-13 |
| JPH087537Y2 JPH087537Y2 (en) | 1996-03-04 |
Family
ID=31214696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989008639U Expired - Lifetime JPH087537Y2 (en) | 1989-01-27 | 1989-01-27 | Objective lens driving device for magneto-optical recording / reproducing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH087537Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02276044A (en) * | 1989-04-17 | 1990-11-09 | Olympus Optical Co Ltd | Objective lens driving device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59152502A (en) * | 1983-02-18 | 1984-08-31 | Canon Inc | Photomagnetic recorder |
| JPS61284801A (en) * | 1985-06-10 | 1986-12-15 | Matsushita Electric Ind Co Ltd | Photomagnetic recording and reproducing device |
-
1989
- 1989-01-27 JP JP1989008639U patent/JPH087537Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59152502A (en) * | 1983-02-18 | 1984-08-31 | Canon Inc | Photomagnetic recorder |
| JPS61284801A (en) * | 1985-06-10 | 1986-12-15 | Matsushita Electric Ind Co Ltd | Photomagnetic recording and reproducing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02276044A (en) * | 1989-04-17 | 1990-11-09 | Olympus Optical Co Ltd | Objective lens driving device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH087537Y2 (en) | 1996-03-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |