JPS63176926U - - Google Patents
Info
- Publication number
- JPS63176926U JPS63176926U JP2358787U JP2358787U JPS63176926U JP S63176926 U JPS63176926 U JP S63176926U JP 2358787 U JP2358787 U JP 2358787U JP 2358787 U JP2358787 U JP 2358787U JP S63176926 U JPS63176926 U JP S63176926U
- Authority
- JP
- Japan
- Prior art keywords
- focus
- track
- coil
- objective lens
- lens holder
- 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
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 claims 1
- 230000007935 neutral effect Effects 0.000 claims 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案による実施例の斜視図、第２図
は本考案の作用図、第３図は本考案による実施例
の磁性体片接着部の拡大図、第４図は対物レンズ
駆動装置の周波数特性を示す図である。
１…対物レンズ、２…レンズホルダ、３…フオ
ーカスコイル、４…トラツクコイル、５…磁性体
片、６…磁気回路、７…エラストマ系接着剤、１
１…ばね、１２…レンズホルダ、１３…ゴムダン
パ。
Fig. 1 is a perspective view of an embodiment of the invention, Fig. 2 is an operational view of the invention, Fig. 3 is an enlarged view of the adhesive part of the magnetic piece of the embodiment of the invention, and Fig. 4 is an objective lens drive device. It is a figure showing the frequency characteristic of. DESCRIPTION OF SYMBOLS 1... Objective lens, 2... Lens holder, 3... Focus coil, 4... Track coil, 5... Magnetic piece, 6... Magnetic circuit, 7... Elastomer adhesive, 1
1... Spring, 12... Lens holder, 13... Rubber damper.
Claims (1)
に駆動させるためのフオーカスコイルと、前記対
物レンズをトラツク方向に駆動させるためのトラ
ツクコイルを具備したレンズホルダと、前記フオ
ーカスコイル及びトラツクコイルに作用する磁気
回路と、前記磁気回路に作用し、前記レンズホル
ダに固着されることにより、前記レンズホルダの
フオーカスまたはトラツク方向、もしくはフオー
カス及びトラツク方向の中立点を定めるための磁
性体片からなるものにおいて、前記磁性体片は前
記レンズホルダにエラストマ系の接着剤で固着さ
れていることを特徴とする対物レンズ駆動装置。 A lens holder including an objective lens, a focus coil for driving the objective lens in a focus direction, a track coil for driving the objective lens in a track direction, and a magnetism acting on the focus coil and the track coil. and a magnetic piece acting on the magnetic circuit and fixed to the lens holder to determine the focus or track direction of the lens holder or a neutral point in the focus and track directions, An objective lens driving device, wherein the magnetic piece is fixed to the lens holder with an elastomer adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2358787U JPS63176926U (en) | 1987-02-20 | 1987-02-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2358787U JPS63176926U (en) | 1987-02-20 | 1987-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63176926U true JPS63176926U (en) | 1988-11-16 |
Family
ID=30822029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2358787U Pending JPS63176926U (en) | 1987-02-20 | 1987-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63176926U (en) |
-
1987
- 1987-02-20 JP JP2358787U patent/JPS63176926U/ja active Pending