JPH0164111U - - Google Patents
Info
- Publication number
- JPH0164111U JPH0164111U JP1987158677U JP15867787U JPH0164111U JP H0164111 U JPH0164111 U JP H0164111U JP 1987158677 U JP1987158677 U JP 1987158677U JP 15867787 U JP15867787 U JP 15867787U JP H0164111 U JPH0164111 U JP H0164111U
- Authority
- JP
- Japan
- Prior art keywords
- spindle
- objective lens
- rotator
- support shaft
- spherical
- 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
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案の一実施例における断面正面図
、第２図は支軸の取付部分の拡大詳細図、第３図
は従来技術の支軸の取付部分の拡大詳細図である
。
符号の説明、１…支軸、２…回動子、３…板バ
ネ、４…ヨーク、５…ガイドパイプ、６…軸線方
向駆動コイル、７…対物レンズ、８…ボビン、９
…サスペンシヨン、１０…回動方向駆動コイル、
１１…回動方向駆動コイル保持体。
FIG. 1 is a cross-sectional front view of an embodiment of the present invention, FIG. 2 is an enlarged detailed view of the mounting portion of the support shaft, and FIG. 3 is an enlarged detailed view of the mounting portion of the support shaft of the prior art. Explanation of symbols, 1... Support shaft, 2... Rotator, 3... Leaf spring, 4... Yoke, 5... Guide pipe, 6... Axial direction drive coil, 7... Objective lens, 8... Bobbin, 9
...Suspension, 10...Rotation direction drive coil,
11...Rotation direction drive coil holder.
Claims (1)
ビンに対物レンズを支軸から離間して設け、前記
ボビンに支軸とほぼ一致する軸線方向駆動用コイ
ルと、支軸から離間して設けた複数又は単数の回
動方向駆動用コイルを備え、支軸を中心にした回
動及び支軸の軸線方向の摺動が可能な対物レンズ
駆動装置において、前記支軸を金属製又はプラス
チツク製の球面又はほぼ球面を有する回動子に圧
入又は接着等により取付け、かつ前記回動子の球
面又はほぼ球面の部分をヨークに設けられた凹状
の球面又はほぼ球面の部分とかん合させ、さらに
回動子が位置ズレ等しないように、板ばね又は専
用のキヤツプにて回動子をおさえ込んだ構造を有
することを特徴とする対物レンズ駆動装置。 An objective lens is provided on a bobbin that is rotatably and slidably provided with respect to the spindle, and is spaced apart from the spindle, and an axial drive coil that substantially coincides with the spindle is mounted on the bobbin, and an objective lens that is spaced apart from the spindle. In the objective lens driving device, which is equipped with a plurality of rotational direction drive coils, and is capable of rotating around a support shaft and sliding in the axial direction of the support shaft, the support shaft is made of metal or plastic. attached to a rotator having a spherical or nearly spherical surface by press fitting or adhesive, and engaging the spherical or approximately spherical portion of the rotator with a concave spherical surface or approximately spherical portion provided on the yoke; An objective lens driving device characterized by having a structure in which a rotator is held down by a leaf spring or a dedicated cap to prevent the rotor from shifting its position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987158677U JPH0164111U (en) | 1987-10-19 | 1987-10-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987158677U JPH0164111U (en) | 1987-10-19 | 1987-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0164111U true JPH0164111U (en) | 1989-04-25 |
Family
ID=31439218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987158677U Pending JPH0164111U (en) | 1987-10-19 | 1987-10-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0164111U (en) |
-
1987
- 1987-10-19 JP JP1987158677U patent/JPH0164111U/ja active Pending