JPS63114412U - - Google Patents
Info
- Publication number
- JPS63114412U JPS63114412U JP735187U JP735187U JPS63114412U JP S63114412 U JPS63114412 U JP S63114412U JP 735187 U JP735187 U JP 735187U JP 735187 U JP735187 U JP 735187U JP S63114412 U JPS63114412 U JP S63114412U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- driving device
- focusing coil
- optical pickup
- axis direction
- 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 10
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第1図はこの考案に係る光ピツクアツプの対物
レンズ駆動装置の第1実施例を示す平面図、第2
図は第1図に示した装置の一部を省略して示した
斜視図、第3図は第1図に示した装置の可動部を
示す分解斜視図、第4図はこの考案に係る光ピツ
クアツプの対物レンズ駆動装置の第2実施例を示
す第3図と同様な分解斜視図、第5図は従来の対
物レンズ駆動装置を示す平面図、第6図は第5図
に示した装置の可動部の平面図、第7図は第6図
に示した装置のコイルを示す斜視図である。
50……基台、51……永久磁石、60……弾
性体、70,80……可動部、72,83……フ
オーカシングコイル、73,87……トラツキン
グコイル、74,81……第1部材、74a,8
4……ボビン部、75,82……第2部材。
FIG. 1 is a plan view showing a first embodiment of an objective lens driving device for an optical pickup according to this invention;
The figure is a perspective view of the device shown in FIG. 1 with some parts omitted, FIG. 3 is an exploded perspective view showing the movable parts of the device shown in FIG. FIG. 5 is an exploded perspective view similar to FIG. 3 showing a second embodiment of a pickup objective lens driving device, FIG. 5 is a plan view showing a conventional objective lens driving device, and FIG. FIG. 7 is a plan view of the movable part and a perspective view showing the coil of the device shown in FIG. 6. 50... Base, 51... Permanent magnet, 60... Elastic body, 70, 80... Moving part, 72, 83... Focusing coil, 73, 87... Tracking coil, 74, 81... First member, 74a, 8
4... Bobbin section, 75, 82... Second member.
Claims (1)
基台と、対物レンズを保持すると共に、弾性体を
介して前記基台に支持された可動部とを有する光
ピツクアツプの対物レンズ駆動装置において、 前記可動部は、フオーカシングコイルを直接巻
き付けるボビン部が設けられた第1部材に第2部
材を接合することによつて形成され、前記対物レ
ンズを保持する部位が、該対物レンズの光軸方向
に沿つて前記フオーカシングコイルを挟む両側で
前記ボビン部と連続する構成とされたことを特徴
とする光ピツクアツプの対物レンズ駆動装置。 (2) 前記第2部材は、前記対物レンズを保持す
ると共に、該対物レンズの光軸方向に沿つて前記
フオーカシングコイルを挟む両側で前記ボビン部
に接合されることを特徴とする実用新案登録請求
の範囲第1項に記載の光ピツクアツプの対物レン
ズ駆動装置。 (3) 前記第1部材には、前記対物レンズの光軸
方向に沿つて前記フオーカシングコイルを挟む一
側から対物レンズを保持するホルダー部が延設さ
れ、前記第2部材は、前記対物レンズの光軸方向
に沿つて前記フオーカシングコイルを挟む他側と
前記ホルダー部とに接合されることを特徴とする
実用新案登録請求の範囲第1項に記載の光ピツク
アツプの対物レンズ駆動装置。[Claims for Utility Model Registration] (1) A base having a closed magnetic circuit formed by one permanent magnet, and a movable part that holds an objective lens and is supported by the base via an elastic body. In the objective lens driving device for an optical pickup, the movable part is formed by joining a second member to a first member provided with a bobbin part around which a focusing coil is directly wound, and the movable part holds the objective lens. An objective lens driving device for an optical pickup, characterized in that a portion is continuous with the bobbin portion on both sides of the focusing coil along the optical axis direction of the objective lens. (2) The utility model characterized in that the second member holds the objective lens and is joined to the bobbin portion on both sides sandwiching the focusing coil along the optical axis direction of the objective lens. An objective lens driving device for an optical pickup according to claim 1. (3) The first member has a holder portion extending from one side sandwiching the focusing coil along the optical axis direction of the objective lens, and the second member holds the objective lens. The objective lens driving device for an optical pickup according to claim 1, wherein the objective lens driving device for an optical pickup according to claim 1 is joined to the other side sandwiching the focusing coil along the optical axis direction of the lens and the holder portion. .
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP735187U JPS63114412U (en) | 1987-01-21 | 1987-01-21 | |
KR870007733A KR880002148A (en) | 1986-07-17 | 1987-07-16 | Objective lens drive of optical pickup |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP735187U JPS63114412U (en) | 1987-01-21 | 1987-01-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63114412U true JPS63114412U (en) | 1988-07-23 |
Family
ID=30790721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP735187U Pending JPS63114412U (en) | 1986-07-17 | 1987-01-21 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63114412U (en) |
-
1987
- 1987-01-21 JP JP735187U patent/JPS63114412U/ja active Pending