JPS6456019U - - Google Patents
Info
- Publication number
- JPS6456019U JPS6456019U JP14973487U JP14973487U JPS6456019U JP S6456019 U JPS6456019 U JP S6456019U JP 14973487 U JP14973487 U JP 14973487U JP 14973487 U JP14973487 U JP 14973487U JP S6456019 U JPS6456019 U JP S6456019U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- objective lens
- magnet
- yoke
- base
- 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
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図ないし第７図は本考案の対物レンズ駆動
装置の実施例を示し、第１図は全体の平面図、第
２図はその縦断面図、第３図はその斜視図、第４
図は要部の側面図、第５図はその縦断面図で、第
６図は変形例を示す要部の縦断面図、第７図は他
の変形例を示す要部の平面図であり、そして、第
８図は従来の対物レンズ駆動装置の一部の縦断面
図、第９図及び第１０図はそれぞれその欠点を示
す一部の側面図及び縦断面図である。
１１……ベース、１４，１５……ヨーク、１５
……マグネツト、１７，４１，４２……突部、２
１……可動体、２５……対物レンズ、２６……フ
オーカシングコイル、２７……トラツキングコイ
ル。
1 to 7 show an embodiment of the objective lens driving device of the present invention, in which FIG. 1 is an overall plan view, FIG. 2 is a vertical sectional view, FIG. 3 is a perspective view, and FIG.
The figure is a side view of the main part, FIG. 5 is a longitudinal sectional view thereof, FIG. 6 is a longitudinal sectional view of the main part showing a modification, and FIG. 7 is a plan view of the main part showing another modification. 8 is a longitudinal cross-sectional view of a part of a conventional objective lens driving device, and FIGS. 9 and 10 are a side view and a longitudinal cross-sectional view of a part showing the drawbacks thereof, respectively. 11...Base, 14, 15...Yoke, 15
...Magnet, 17,41,42...Protrusion, 2
1...Movable body, 25...Objective lens, 26...Focusing coil, 27...Tracking coil.
Claims (1)
シング方向及びトラツキング方向に移動可能に支
持し、この可動体にフオーカシングコイル及びト
ラツキングコイルを設け、このフオーカシングコ
イル及びトラツキングコイルに対するマグネツト
及びヨークを上記ベースに設けた対物レンズ駆動
装置であつて、 上記マグネツトを取付けるヨークの側面及びこ
のヨーク基部のベースの上面の少なくとも一方に
、マグネツトの端部に対する突部を形成したこと
を特徴とする対物レンズ駆動装置。[Claims for Utility Model Registration] A movable body provided with an objective lens is supported movably in a focusing direction and a tracking direction, a focusing coil and a tracking coil are provided on this movable body, and the focusing coil is provided with a focusing coil and a tracking coil. and an objective lens driving device in which a magnet and a yoke for a tracking coil are provided on the base, wherein a protrusion for an end of the magnet is provided on at least one of the side surface of the yoke to which the magnet is attached and the upper surface of the base of the yoke base. An objective lens driving device characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14973487U JPS6456019U (en) | 1987-09-30 | 1987-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14973487U JPS6456019U (en) | 1987-09-30 | 1987-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6456019U true JPS6456019U (en) | 1989-04-06 |
Family
ID=31422236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14973487U Pending JPS6456019U (en) | 1987-09-30 | 1987-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6456019U (en) |
-
1987
- 1987-09-30 JP JP14973487U patent/JPS6456019U/ja active Pending