JPS63105924U - - Google Patents
Info
- Publication number
- JPS63105924U JPS63105924U JP20247886U JP20247886U JPS63105924U JP S63105924 U JPS63105924 U JP S63105924U JP 20247886 U JP20247886 U JP 20247886U JP 20247886 U JP20247886 U JP 20247886U JP S63105924 U JPS63105924 U JP S63105924U
- Authority
- JP
- Japan
- Prior art keywords
- movable arm
- coil bobbin
- objective lens
- fixed base
- center
- 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
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案の対物レンズ駆動装置の一実施
例を示す一部を断面にした側面図、第２図はその
平面図である。
１……可動アーム、３……コイルボビン、６…
…係合溝、７……フオーカシングコイル、８……
トラツキングコイル、９……対物レンズ、１１…
…固定ベース、１２……外側ヨーク、１４……内
側ヨーク、１５……支軸、１６……マグネツト、
２１……ダンパ、３１……調整軸、３５……偏心
ピン。
FIG. 1 is a partially sectional side view showing an embodiment of the objective lens driving device of the present invention, and FIG. 2 is a plan view thereof. 1...Movable arm, 3...Coil bobbin, 6...
...Engagement groove, 7...Focusing coil, 8...
Tracking coil, 9...Objective lens, 11...
... Fixed base, 12 ... Outer yoke, 14 ... Inner yoke, 15 ... Support shaft, 16 ... Magnet,
21...damper, 31...adjustment shaft, 35...eccentric pin.
Claims (1)
に外側にトラツキングコイルを添着したコイルボ
ビンを有しかつこのコイルボビンと軸方向を一致
させて対物レンズを取付けた可動アームと、 この可動アームを上記コイルボビンの中心に沿
つた支軸の方向に移動自在に係合するとともにこ
の支軸を中心に回動自在に係合しかつマグネツト
及びコイルボビンの内側に対する内側ヨーク及び
コイルボビンの外側に対する外側ヨークを設けた
固定ベースと、 この固定ベース及び上記可動アームを弾性的に
連結して可動アームを可動自在に支持したダンパ
とを備え、 上記対物レンズの中心及び上記支軸の中心に交
差する直線上に位置して上記可動アームに所定幅
の係合溝を形成し、この係合溝に遊嵌して上記可
動アームの回動範囲を設定する偏心ピンを有する
調整軸を上記固定ベースに設けたことを特徴とす
る対物レンズ駆動装置。[Scope of Claim for Utility Model Registration] A movable arm having a coil bobbin with a focusing coil wound around its outer periphery and a tracking coil attached to the outside, and an objective lens attached with an axial direction aligned with the coil bobbin; This movable arm is movably engaged in the direction of a support shaft along the center of the coil bobbin, and is also rotatably engaged around this support shaft, and is connected to the inner yoke and the outside of the coil bobbin with respect to the inside of the magnet and coil bobbin. A fixed base provided with an outer yoke, and a damper that elastically connects the fixed base and the movable arm to movably support the movable arm, and intersects the center of the objective lens and the center of the support shaft. An adjustment shaft that is located on a straight line and has an eccentric pin that forms an engagement groove of a predetermined width in the movable arm and that fits loosely into the engagement groove to set the rotation range of the movable arm is attached to the fixed base. An objective lens driving device characterized by being provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20247886U JPS63105924U (en) | 1986-12-24 | 1986-12-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20247886U JPS63105924U (en) | 1986-12-24 | 1986-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63105924U true JPS63105924U (en) | 1988-07-08 |
Family
ID=31166897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20247886U Pending JPS63105924U (en) | 1986-12-24 | 1986-12-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63105924U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05120707A (en) * | 1991-10-25 | 1993-05-18 | Nec Gumma Ltd | Objective lens driving device |
-
1986
- 1986-12-24 JP JP20247886U patent/JPS63105924U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05120707A (en) * | 1991-10-25 | 1993-05-18 | Nec Gumma Ltd | Objective lens driving device |