JPS61105918U - - Google Patents
Info
- Publication number
- JPS61105918U JPS61105918U JP19195684U JP19195684U JPS61105918U JP S61105918 U JPS61105918 U JP S61105918U JP 19195684 U JP19195684 U JP 19195684U JP 19195684 U JP19195684 U JP 19195684U JP S61105918 U JPS61105918 U JP S61105918U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- support
- optical axis
- lens
- driving
- 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 4
- 230000007246 mechanism Effects 0.000 claims 3
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図及び第２図は既に提案されたレンズ駆動
装置を説明するための図、第３図及び第４図は本
考案に係るレンズ駆動装置の各々斜視図及び平面
図、第５図ないし第８図は当該レンズ駆動装置の
動作を説明するための図、第９図は第１図に示さ
れるレンズ駆動装置の動作を説明するための図で
ある。
主要部分の符号の説明、１１……対物レンズ、
１２……ホルダ、１７ａ，１７ｂ，１９ａ，１９
ｂ……片持梁状支持部材、１８……ベース、２０
……フオーカシングコイル、２２……トラツキン
グコイル。
1 and 2 are diagrams for explaining the already proposed lens driving device, FIGS. 3 and 4 are perspective views and plan views, respectively, of the lens driving device according to the present invention, and FIGS. 8 is a diagram for explaining the operation of the lens driving device, and FIG. 9 is a diagram for explaining the operation of the lens driving device shown in FIG. 1. Explanation of symbols of main parts, 11...Objective lens,
12...Holder, 17a, 17b, 19a, 19
b... Cantilever support member, 18... Base, 20
...Focusing coil, 22...Tracking coil.
Claims (1)
ための対物レンズを駆動するレンズ駆動装置であ
つて、前記対物レンズを前記対物レンズの光軸方
向及びこれに垂直な方向において移動可能に且つ
前記対物レンズの光軸が前記記録面に対して垂直
であるように支持する支持機構と、前記対物レン
ズに駆動力を付与する駆動方付与手段とを含み、
前記支持機構は互いに前記光軸方向において離隔
して配置され且つ前記垂直な方向に平行に伸長し
自由端部において前記対物レンズを前記垂直な方
向における該対物レンズの一側部にて支持する一
対の可撓性片持梁状第１支持部材と、互いに前記
光軸方向において離隔して配置され且つ前記垂直
な方向に平行に伸び自由端部において前記対物レ
ンズを前記垂直な方向における該対物レンズの他
側部にて支持する一対の可撓性片持梁状第２支持
部材とを有し、前記第１及び第２支持部材の各固
定端間の距離が自由端間の距離よりも小となつて
いることを特徴とするレンズ駆動装置。 A lens driving device for driving an objective lens for irradiating a recording surface of a recording medium with spot light, the objective lens being movable in an optical axis direction of the objective lens and a direction perpendicular thereto; a support mechanism that supports the optical axis of the objective lens so that it is perpendicular to the recording surface, and a driving method applying means that applies a driving force to the objective lens,
The support mechanisms include a pair of support mechanisms that are spaced apart from each other in the optical axis direction, extend parallel to the perpendicular direction, and support the objective lens at a free end on one side of the objective lens in the perpendicular direction. a flexible cantilever-shaped first support member, which is spaced apart from each other in the optical axis direction and extends parallel to the perpendicular direction, and which extends at a free end portion of the objective lens in the perpendicular direction; a pair of flexible cantilever-shaped second support members supported on the other side, and the distance between each fixed end of the first and second support members is smaller than the distance between the free ends. A lens driving device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19195684U JPS61105918U (en) | 1984-12-18 | 1984-12-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19195684U JPS61105918U (en) | 1984-12-18 | 1984-12-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61105918U true JPS61105918U (en) | 1986-07-05 |
Family
ID=30749388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19195684U Pending JPS61105918U (en) | 1984-12-18 | 1984-12-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61105918U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59218639A (en) * | 1983-05-27 | 1984-12-08 | Seiko Instr & Electronics Ltd | Support mechanism of optical pickup |
-
1984
- 1984-12-18 JP JP19195684U patent/JPS61105918U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59218639A (en) * | 1983-05-27 | 1984-12-08 | Seiko Instr & Electronics Ltd | Support mechanism of optical pickup |
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