JPS6340815U - - Google Patents
Info
- Publication number
- JPS6340815U JPS6340815U JP13500286U JP13500286U JPS6340815U JP S6340815 U JPS6340815 U JP S6340815U JP 13500286 U JP13500286 U JP 13500286U JP 13500286 U JP13500286 U JP 13500286U JP S6340815 U JPS6340815 U JP S6340815U
- Authority
- JP
- Japan
- Prior art keywords
- recording
- reproducing device
- light
- yoke
- optical information
- 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 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 239000000696 magnetic material Substances 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 229910000889 permalloy Inorganic materials 0.000 claims 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図Ａは本考案の二軸アクチユエータの上面
図、同図ＢはそのＡ―Ａ断面図、同図Ｃは同図Ａ
の可動部を除いた斜視図、第２図Ａは従来の二軸
アクチユエータの上面図、同図ＢはそのＡ―Ａ断
面図、同図Ｃは同図Ａの可動部を除いた斜視図で
ある。
１……対物レンズ、２……対物レンズ保持体、
３……フオーカスコイル、４……トラツキングコ
イル、５……回路基板、６……ガイド軸、７……
ヨーク、８……磁石、９……バランサ。
Figure 1A is a top view of the two-axis actuator of the present invention, Figure 1B is a sectional view taken along line A-A, and Figure C is Figure A.
FIG. 2A is a top view of a conventional two-axis actuator, FIG. 2B is a sectional view taken along line AA, and FIG. 2C is a perspective view of FIG. be. 1...Objective lens, 2...Objective lens holder,
3... Focus coil, 4... Tracking coil, 5... Circuit board, 6... Guide shaft, 7...
Yoke, 8...magnet, 9...balancer.
Claims (1)
は記録媒体の記録面に所望の情報を記録する光学
式情報記録再生装置で、光源からの光を前記記録
面に光スポツトとして集光する対物レンズを光軸
方向と光軸の直交方向に移動させる方法として磁
石とヨークからなる磁気回路を用いる二軸アクチ
ユエータにおいて、ヨークを少なくともパーマロ
イ、軟鉄等の軟磁性材料を含むプラスチツクから
成形したことを特徴とする光学式情報記録再生装
置。 (2) 前記プラスチツク中に含まれる軟磁性材料
の量は体積比で２０〜５０％であることを特徴と
する特許請求の範囲第１項記載の光学式情報記録
再生装置。[Claims for Utility Model Registration] (1) An optical information recording and reproducing device that reads information on the recording surface of a recording medium or records desired information on the recording surface of a recording medium, which directs light from a light source to the recording surface. In a two-axis actuator that uses a magnetic circuit consisting of a magnet and a yoke as a method of moving an objective lens that condenses light as a light spot in the direction of the optical axis and in the direction orthogonal to the optical axis, the yoke is made of at least a soft magnetic material such as permalloy or soft iron. An optical information recording/reproducing device characterized in that it is molded from plastic containing: (2) The optical information recording/reproducing device according to claim 1, wherein the amount of soft magnetic material contained in the plastic is 20 to 50% by volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13500286U JPS6340815U (en) | 1986-09-03 | 1986-09-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13500286U JPS6340815U (en) | 1986-09-03 | 1986-09-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6340815U true JPS6340815U (en) | 1988-03-17 |
Family
ID=31036770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13500286U Pending JPS6340815U (en) | 1986-09-03 | 1986-09-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6340815U (en) |
-
1986
- 1986-09-03 JP JP13500286U patent/JPS6340815U/ja active Pending
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