JPS6344221U - - Google Patents
Info
- Publication number
- JPS6344221U JPS6344221U JP13810186U JP13810186U JPS6344221U JP S6344221 U JPS6344221 U JP S6344221U JP 13810186 U JP13810186 U JP 13810186U JP 13810186 U JP13810186 U JP 13810186U JP S6344221 U JPS6344221 U JP S6344221U
- Authority
- JP
- Japan
- Prior art keywords
- imaging element
- permanent magnet
- coil
- yoke
- drive device
- 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
- 238000003384 imaging method Methods 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims 2
- 239000000696 magnetic material Substances 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案の１実施例を説明する結像素子
駆動装置の組立状態を示す分解斜視図、第２図は
第１図の結像素子駆動装置の平面図、第３図は第
２図の―に沿う縦断面図、第４図は第２図の
―に沿う縦断面図、第５図は第２図の可動ホ
ルダ部を取り除いた磁気回路構成を示す平面図、
第６図は従来例の結像素子駆動装置の一部を切り
欠いた平面図、第７図は第６図に示す従来例の縦
断面図である。
図において、５１は結像素子、５２は可動ホル
ダ、５５は可動永久磁石リング、５６はベースヨ
ーク、５９は支軸、６０は焦点位置制御用コイル
、６１ａ，６１ｂ，６１ｃ，６１ｄはトラツク制
御用矩形コイル、６２はコイル基台である。なお
、図中、同一符号は同一、又は相当部分を示す。
FIG. 1 is an exploded perspective view showing an assembled state of an imaging element driving device illustrating an embodiment of the present invention, FIG. 2 is a plan view of the imaging element driving device shown in FIG. 1, and FIG. 4 is a vertical sectional view taken along the line - in FIG. 2, FIG. 5 is a plan view showing the magnetic circuit configuration with the movable holder part removed from FIG. 2,
FIG. 6 is a partially cutaway plan view of a conventional image forming element driving device, and FIG. 7 is a vertical cross-sectional view of the conventional example shown in FIG. In the figure, 51 is an imaging element, 52 is a movable holder, 55 is a movable permanent magnet ring, 56 is a base yoke, 59 is a support shaft, 60 is a focal position control coil, and 61a, 61b, 61c, and 61d are for track control. A rectangular coil, 62 is a coil base. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
移動自在に嵌着され、該支軸の軸線方向と平行な
光軸を有する結像素子を保持する結像素子ホルダ
と、この結像素子ホルダに取り付けられ、該結像
素子ホルダを回転制御するとともに軸線方向に移
動制御する駆動装置とを備え、該結像素子ホルダ
を駆動して、該結像素子を介してデイスク状情報
記録媒体表面に集光される光スポツトとトラツク
との位置ずれ量であるトラツクずれ及び焦点位置
ずれを制御するようにした結像素子駆動装置にお
いて、 結像素子駆動装置本体が、該駆動装置の可動部
に設けられた部分多極化かつラジアル着磁された
永久磁石と、該駆動装置の固定部側に前記永久磁
石と一様なギヤツプを有すべく設けたヨークと、
前記永久磁石と前記ヨークによつて生じる磁界中
に固定して設け前記焦点位置ずれを制御するため
の第１のコイルと、前記トラツクずれを制御する
ための第２のコイルから成ることを特徴とする結
像素子駆動装置。 (2) 部分多極化かつラジアル着磁された永久磁
石は、リング状を呈し、前記第１のコイルは、前
記永久磁石リングの内周面に対面して配されてお
り、前記第２のコイルは、前記永久磁石リングの
外周面に対面して配されていることを特徴とする
実用新案登録請求の範囲第(1)項記載の結像素子
駆動装置。 (3) 第１のコイル及び第２のコイルを位置決め
し、ヨークに固定するための非磁性材から成る基
台をヨークに対して少なくともその一部が接触す
るように配することを特徴とする実用新案登録請
求の範囲第(1)項及び第(2)項記載の結像素子駆動
装置。[Claims for Utility Model Registration] (1) An imaging element that rotates around a support shaft and is fitted so as to be movable in the axial direction, holding an imaging element having an optical axis parallel to the axial direction of the support shaft. a child holder; and a drive device attached to the imaging element holder to control rotation and movement of the imaging element holder in the axial direction, and drive the imaging element holder to move the imaging element. In an imaging element driving device that controls track deviation and focal position deviation, which are the amount of positional deviation between a light spot focused on the surface of a disk-shaped information recording medium via , a partially multipolarized and radially magnetized permanent magnet provided in the movable part of the drive device; a yoke provided on the fixed part side of the drive device to have a uniform gap with the permanent magnet;
A first coil fixedly provided in a magnetic field generated by the permanent magnet and the yoke to control the focus position shift, and a second coil to control the track shift. Imaging element drive device. (2) The partially multipolarized and radially magnetized permanent magnet has a ring shape, the first coil is arranged facing the inner peripheral surface of the permanent magnet ring, and the second coil is arranged to face the inner peripheral surface of the permanent magnet ring. , the imaging element driving device according to claim 1, which is disposed facing the outer circumferential surface of the permanent magnet ring. (3) A base made of a non-magnetic material for positioning and fixing the first coil and the second coil to the yoke is arranged so that at least a part of the base is in contact with the yoke. An imaging element driving device according to claims (1) and (2) of the utility model registration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986138101U JPH0718015Y2 (en) | 1986-09-09 | 1986-09-09 | Imaging element drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986138101U JPH0718015Y2 (en) | 1986-09-09 | 1986-09-09 | Imaging element drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6344221U true JPS6344221U (en) | 1988-03-24 |
| JPH0718015Y2 JPH0718015Y2 (en) | 1995-04-26 |
Family
ID=31042777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986138101U Expired - Lifetime JPH0718015Y2 (en) | 1986-09-09 | 1986-09-09 | Imaging element drive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0718015Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6044225U (en) * | 1983-09-05 | 1985-03-28 | ソニー株式会社 | Optical pickup device |
| JPS6089838A (en) * | 1983-10-24 | 1985-05-20 | Asahi Optical Co Ltd | Device for setting neutral position in track direction of objective lens driver in optical information recording and reproducing device |
-
1986
- 1986-09-09 JP JP1986138101U patent/JPH0718015Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6044225U (en) * | 1983-09-05 | 1985-03-28 | ソニー株式会社 | Optical pickup device |
| JPS6089838A (en) * | 1983-10-24 | 1985-05-20 | Asahi Optical Co Ltd | Device for setting neutral position in track direction of objective lens driver in optical information recording and reproducing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0718015Y2 (en) | 1995-04-26 |
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