JPH02135915U - - Google Patents
Info
- Publication number
- JPH02135915U JPH02135915U JP4254289U JP4254289U JPH02135915U JP H02135915 U JPH02135915 U JP H02135915U JP 4254289 U JP4254289 U JP 4254289U JP 4254289 U JP4254289 U JP 4254289U JP H02135915 U JPH02135915 U JP H02135915U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- holding member
- optical pickup
- lens actuator
- lens holding
- 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 2
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第1図はこの考案の実施例の対物レンズアクチ
ユエータの平面図、第2図は第1図におけるA−
A断面図、第3図は第1図におけるB−B断面図
、第4図は従来の対物レンズアクチユエータを示
す分解斜視図、第5図は他の従来の対物レンズア
クチユエータを示す平面図である。
1……ベース、2……対物レンズ保持部材、3
……対物レンズ、4……バランサー、5……弾性
支持体、6……ヨーク、6a……内ヨーク、6b
……外ヨーク、7……永久磁石、8……主軸、9
……フオーカシングコイル、10……トラツキン
グコイル、11……軸受け。
FIG. 1 is a plan view of an objective lens actuator according to an embodiment of this invention, and FIG.
A sectional view, FIG. 3 is a BB sectional view in FIG. 1, FIG. 4 is an exploded perspective view showing a conventional objective lens actuator, and FIG. 5 shows another conventional objective lens actuator. FIG. 1...Base, 2...Objective lens holding member, 3
...Objective lens, 4...Balancer, 5...Elastic support, 6...Yoke, 6a...Inner yoke, 6b
...Outer yoke, 7...Permanent magnet, 8...Main shaft, 9
... Focusing coil, 10 ... Tracking coil, 11 ... Bearing.
Claims (1)
に抗して摺動および回動自在に支持し、対物レン
ズ保持部材に付設されたフオーカシングコイルお
よびトラツキングコイルをベースに固定された磁
気回路の磁界内に配置した光ピツクアツプの対物
レンズアクチユエータにおいて、磁気回路を主軸
中心と対物レンズ中心を結ぶ直線の両側に左右一
対設け、弾性支持体を主軸と磁気回路の間に左右
一対配置したことを特徴とする光ピツクアツプの
対物レンズアクチユエータ。 A magnetic circuit that supports the objective lens holding member around the main axis so that it can slide and rotate freely against the elasticity of the elastic support, and that the focusing coil and tracking coil attached to the objective lens holding member are fixed to the base. In the objective lens actuator of an optical pickup placed in the magnetic field of An objective lens actuator for an optical pickup.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4254289U JPH02135915U (en) | 1989-04-13 | 1989-04-13 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4254289U JPH02135915U (en) | 1989-04-13 | 1989-04-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02135915U true JPH02135915U (en) | 1990-11-13 |
Family
ID=31554177
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4254289U Pending JPH02135915U (en) | 1989-04-13 | 1989-04-13 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02135915U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61287046A (en) * | 1985-06-13 | 1986-12-17 | Canon Inc | Optical system driver |
-
1989
- 1989-04-13 JP JP4254289U patent/JPH02135915U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61287046A (en) * | 1985-06-13 | 1986-12-17 | Canon Inc | Optical system driver |