JPH0171313U - - Google Patents
Info
- Publication number
- JPH0171313U JPH0171313U JP1987167240U JP16724087U JPH0171313U JP H0171313 U JPH0171313 U JP H0171313U JP 1987167240 U JP1987167240 U JP 1987167240U JP 16724087 U JP16724087 U JP 16724087U JP H0171313 U JPH0171313 U JP H0171313U
- Authority
- JP
- Japan
- Prior art keywords
- welding
- actuator
- optical head
- yoke
- yoke structure
- 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 description 8
- 238000003466 welding Methods 0.000 claims 11
- 230000003993 interaction Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図はこの考案の一実施例のヨーク構造を示
す分解斜視図、第２図は従来の光ヘツド用アクチ
ユエータの構成を示す分解斜視図、第３図は従来
のヨーク構造を示す斜視図である。
１……対物レンズ、５……フオーカシングコイ
ル、６……トラツキングコイル、２１……アクチ
ユエータベース、２４，２５……ヨーク。
Fig. 1 is an exploded perspective view showing the yoke structure of an embodiment of this invention, Fig. 2 is an exploded perspective view showing the structure of a conventional optical head actuator, and Fig. 3 is a perspective view showing the conventional yoke structure. be. 1... Objective lens, 5... Focusing coil, 6... Tracking coil, 21... Actuator base, 24, 25... Yoke.
Claims (1)
路によつてつくられる磁界との相互作用により光
ヘツドの対物レンズを駆動するコイルとを有する
光ヘツド用アクチユエータにおいて、 前記ヨークは、板金プレスにより加工され、か
つ前記アクチユエータを支持するアクチユエータ
ベースに溶接によつて取り付けられたことを特徴
とする光ヘツド用アクチユエータのヨーク構造。 (2) 前記溶接は、スポツト溶接、プロジエクシ
ヨン溶接などの抵抗溶接のように、電気的エネル
ギを利用した溶接であることを特徴とする実用新
案登録請求の範囲第１項記載の光ヘツド用アクチ
ユエータのヨーク構造。 (3) 前記溶接は、超音波溶接のように、超音波
エネルギを利用した溶接であることを特徴とする
実用新案登録請求の範囲第１項記載の光ヘツド用
アクチユエータのヨーク構造。 (4) 前記溶接は、レーザ溶接などのように、光
エネルギによることを特徴とする実用新案登録請
求の範囲第１項記載の光ヘツド用アクチユエータ
のヨーク構造。[Claims for Utility Model Registration] (1) In an actuator for an optical head, which has a yoke forming a magnetic circuit and a coil that drives an objective lens of the optical head through interaction with a magnetic field created by the magnetic circuit. A yoke structure for an actuator for an optical head, characterized in that the yoke is processed by sheet metal pressing and attached by welding to an actuator base that supports the actuator. (2) The optical head according to claim 1, wherein the welding is welding using electrical energy, such as resistance welding such as spot welding and projection welding. Actuator yoke structure. (3) The yoke structure of an actuator for an optical head according to claim 1, wherein the welding is welding using ultrasonic energy, such as ultrasonic welding. (4) The yoke structure of an actuator for an optical head according to claim 1, wherein the welding is performed using optical energy such as laser welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987167240U JPH0171313U (en) | 1987-10-31 | 1987-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987167240U JPH0171313U (en) | 1987-10-31 | 1987-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0171313U true JPH0171313U (en) | 1989-05-12 |
Family
ID=31455353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987167240U Pending JPH0171313U (en) | 1987-10-31 | 1987-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0171313U (en) |
-
1987
- 1987-10-31 JP JP1987167240U patent/JPH0171313U/ja active Pending