JPS58118542U - optical head - Google Patents
optical headInfo
- Publication number
- JPS58118542U JPS58118542U JP1337382U JP1337382U JPS58118542U JP S58118542 U JPS58118542 U JP S58118542U JP 1337382 U JP1337382 U JP 1337382U JP 1337382 U JP1337382 U JP 1337382U JP S58118542 U JPS58118542 U JP S58118542U
- Authority
- JP
- Japan
- Prior art keywords
- lens holder
- orthogonal
- fixed
- parallel
- 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
Landscapes
- Optical Recording Or Reproduction (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来装置の一例を示す構成図、第２図は第°１
図の動作説明に供するための特性図、第３図はこの考案
の一実施例を示す斜視図、第４図は第３図の分解組立図
、第５図は第３図の動作説明に供するための特性図であ
る。
１は対物レンズ、２はボビン、３は第１のヨーク、４は
第２のヨーク、５はトラッキング用コイル、６はトラッ
キンゲ用磁石、７はフォーカス用コイル、８はフォーカ
ス用磁石、９はワイヤ、 −１０は板ばね、１１はプリ
ズム、１２は取付は台である。Figure 1 is a configuration diagram showing an example of a conventional device, and Figure 2 is a diagram showing an example of a conventional device.
3 is a perspective view showing an embodiment of the invention, FIG. 4 is an exploded view of FIG. 3, and FIG. 5 is a characteristic diagram for explaining the operation of FIG. 3. FIG. 1 is an objective lens, 2 is a bobbin, 3 is a first yoke, 4 is a second yoke, 5 is a tracking coil, 6 is a tracking magnet, 7 is a focusing coil, 8 is a focusing magnet, 9 is a wire , -10 is a leaf spring, 11 is a prism, and 12 is a mounting base.
Claims (1)
体を上記対物レンズの光軸と平行な方向及び直交する方
向に可動自在に支持する支持手段と、上記レンズ保持体
を上゛配光軸と平行な方向に駆動する第１の電磁駆動装
置と、上記レンズ保持体を上記光軸と直交する方向に駆
動する第２の電磁駆動装置とを備えた光学ヘッドにおい
て、上記支持手段は一端が上記対物レンズ近傍の上記レ
ンズ保持体に固着され他端が固定部に固着されて上記平
行な方向及び上記直交する方向のいずれにも直交する方
向に延在するワイヤと、一端が上記対物レンズから離間
した上記レンズ保持体に固着され他端が固定部に固着さ
れて上記平行な方向ネび上記直交する方向のいずれにも
直交する方向に延在する互いに平行な一対の板ばねで構
成され、上記第２の電磁駆動装置は上記ワイヤの近傍に
設けたことを特徴とする光学ヘッド。a lens holder to which an objective lens is fixed; a supporting means for movably supporting the lens holder in directions parallel to and orthogonal to the optical axis of the objective lens; and a second electromagnetic drive device that drives the lens holder in a direction perpendicular to the optical axis. a wire fixed to the lens holder near the objective lens, the other end fixed to the fixing part, and extending in a direction orthogonal to both the parallel direction and the orthogonal direction; a pair of mutually parallel leaf springs fixed to the spaced apart lens holder and having the other end fixed to a fixing part and extending in a direction perpendicular to both the parallel direction springs and the orthogonal directions; An optical head characterized in that the second electromagnetic drive device is provided near the wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1337382U JPS58118542U (en) | 1982-02-02 | 1982-02-02 | optical head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1337382U JPS58118542U (en) | 1982-02-02 | 1982-02-02 | optical head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58118542U true JPS58118542U (en) | 1983-08-12 |
Family
ID=30025891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1337382U Pending JPS58118542U (en) | 1982-02-02 | 1982-02-02 | optical head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58118542U (en) |
-
1982
- 1982-02-02 JP JP1337382U patent/JPS58118542U/en active Pending
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