JPS62153623U - - Google Patents
Info
- Publication number
- JPS62153623U JPS62153623U JP4159386U JP4159386U JPS62153623U JP S62153623 U JPS62153623 U JP S62153623U JP 4159386 U JP4159386 U JP 4159386U JP 4159386 U JP4159386 U JP 4159386U JP S62153623 U JPS62153623 U JP S62153623U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- focus
- track
- coil
- magnetic circuit
- 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 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図はこの考案にかかる対物レンズ駆動装置
の平面図、第２図は断面図、第３図は従来の対物
レンズ駆動装置を示す平面図である。
１……対物レンズ、３……フオーカスコイル、
６……対物レンズホルダ、７……フオーカス磁気
回路、９……内ヨーク。
FIG. 1 is a plan view of an objective lens driving device according to this invention, FIG. 2 is a sectional view, and FIG. 3 is a plan view showing a conventional objective lens driving device. 1...Objective lens, 3...Focus coil,
6...Objective lens holder, 7...Focus magnetic circuit, 9...Inner yoke.
Claims (1)
物レンズをフオーカス方向へ駆動するフオーカス
コイルと、前記対物レンズをトラツク方向へ駆動
するトラツクコイルとが固着されている対物レン
ズホルダと、前記フオーカスコイルに作用し、前
記対物レンズホルダをフオーカス方向へ駆動せし
めるフオーカス用磁気回路と、前記トラツクコイ
ルに作用し、前記対物レンズホルダをトラツク方
向へ駆動せしめるトラツク用磁気回路とから成る
対物レンズ駆動装置において、前記フオーカスコ
イルが２組、前記対物レンズホルダに固着され、
該フオーカスコイルが各々、前記フオーカス用磁
気回路の内ヨークを取り囲むように構成されて成
ることを特徴とする、光学式記録再生装置の対物
レンズ駆動装置。 an objective lens holder to which are fixed an objective lens, a focus coil that supports the objective lens and drives the objective lens in a focus direction, and a track coil that drives the objective lens in a track direction; An objective lens driving device comprising: a focus magnetic circuit that acts on a coil to drive the objective lens holder in the focus direction; and a track magnetic circuit that acts on the track coil to drive the objective lens holder in the track direction. , two sets of the focus coils are fixed to the objective lens holder,
An objective lens drive device for an optical recording/reproducing device, wherein each of the focus coils is configured to surround an inner yoke of the focus magnetic circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4159386U JPS62153623U (en) | 1986-03-20 | 1986-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4159386U JPS62153623U (en) | 1986-03-20 | 1986-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62153623U true JPS62153623U (en) | 1987-09-29 |
Family
ID=30856734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4159386U Pending JPS62153623U (en) | 1986-03-20 | 1986-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62153623U (en) |
-
1986
- 1986-03-20 JP JP4159386U patent/JPS62153623U/ja active Pending
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