JPH0185916U - - Google Patents
Info
- Publication number
- JPH0185916U JPH0185916U JP18123787U JP18123787U JPH0185916U JP H0185916 U JPH0185916 U JP H0185916U JP 18123787 U JP18123787 U JP 18123787U JP 18123787 U JP18123787 U JP 18123787U JP H0185916 U JPH0185916 U JP H0185916U
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical body
- columnar bodies
- electrostrictive elements
- laminated
- optical
- 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 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図はこの考案の一実施例の要部を示す斜視
図、第２図は第１図の部分断面図、第３図は第２
図の部分拡大図、第４図は従来例の構成を示す説
明図である。
１１……円筒体、１２ａ，１２ｂ……柱状体、
１３……対物レンズ、１４……プリズム、１５…
…絶縁支持体。
Fig. 1 is a perspective view showing the main parts of an embodiment of this invention, Fig. 2 is a partial sectional view of Fig. 1, and Fig. 3 is a partial cross-sectional view of Fig. 2.
FIG. 4, which is a partially enlarged view of the figure, is an explanatory diagram showing the configuration of a conventional example. 11... Cylindrical body, 12a, 12b... Column body,
13...Objective lens, 14...Prism, 15...
...Insulating support.
Claims (1)
ンズを移動させて光軸の位置及び焦点がデイスク
に追従するよう構成した光学ヘツドにおいて、 環状の積層型電歪素子を積層した円筒体端面に
バイモルフ型電歪素子からなる２本の柱状体を前
記円筒体の軸方向に対して平行に立設し、その柱
状体の先端で対物レンズの端部を支持したことを
特徴とする光学ヘツド。[Claims for Utility Model Registration] An optical head configured to move an objective lens in the focusing direction and the tracking direction so that the position of the optical axis and the focal point follow the disk, a cylindrical body in which annular laminated electrostrictive elements are laminated. An optical system characterized in that two columnar bodies made of bimorph electrostrictive elements are erected in parallel to the axial direction of the cylindrical body on the end faces, and the ends of the objective lenses are supported at the tips of the columnar bodies. Head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18123787U JPH0185916U (en) | 1987-11-27 | 1987-11-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18123787U JPH0185916U (en) | 1987-11-27 | 1987-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0185916U true JPH0185916U (en) | 1989-06-07 |
Family
ID=31472728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18123787U Pending JPH0185916U (en) | 1987-11-27 | 1987-11-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0185916U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58222449A (en) * | 1982-06-18 | 1983-12-24 | Matsushita Electric Ind Co Ltd | Actuator of optical disk |
-
1987
- 1987-11-27 JP JP18123787U patent/JPH0185916U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58222449A (en) * | 1982-06-18 | 1983-12-24 | Matsushita Electric Ind Co Ltd | Actuator of optical disk |
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