JPH02135918U - - Google Patents
Info
- Publication number
- JPH02135918U JPH02135918U JP4254589U JP4254589U JPH02135918U JP H02135918 U JPH02135918 U JP H02135918U JP 4254589 U JP4254589 U JP 4254589U JP 4254589 U JP4254589 U JP 4254589U JP H02135918 U JPH02135918 U JP H02135918U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- view
- holding member
- balancer
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 description 1
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図は同実施例の対物レンズ保持部材を示す
上面図、第５図は同下面図、第６図は第４図にお
けるＡ−Ａ断面図、第７図はこの考案の他の実施
例におけるバランサー取付け状態を示す斜視図、
第８図ａは第７図におけるＡ部を示す断面図、第
８図ｂ，ｃおよびｄは第７図におけるＢ部を示す
断面図、第９図ａは従来の対物レンズ保持部材の
バランサー取付け部をを示す平面図、第９図ｂは
第９図におけるＡ−Ａ断面図、第９図ｃは従来の
対物レンズ保持部材に取付けるバランサーを示す
斜視図である。
１……ベース、２……対物レンズ保持部材、２
ａ……凹み、２ｂ……透孔、２ｃ……溝、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 a top view showing the objective lens holding member of the same embodiment, FIG. 5 is a bottom view of the same, and FIG. FIG. 7 is a perspective view showing a balancer installed state in another embodiment of this invention,
Figure 8a is a sectional view showing part A in Figure 7, Figures 8b, c and d are sectional views showing part B in Figure 7, and Figure 9a is a balancer installation of a conventional objective lens holding member. FIG. 9b is a sectional view taken along the line AA in FIG. 9, and FIG. 9c is a perspective view showing a balancer attached to a conventional objective lens holding member. 1...Base, 2...Objective lens holding member, 2
a...dent, 2b...through hole, 2c...groove, 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)
に溝または透孔を設け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。 An objective lens actuator for an optical pickup, characterized in that a groove or a through hole is provided in a recess for attaching a balancer to an objective lens holding member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989042545U JPH0731367Y2 (en) | 1989-04-13 | 1989-04-13 | Objective lens actuator for optical pickup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989042545U JPH0731367Y2 (en) | 1989-04-13 | 1989-04-13 | Objective lens actuator for optical pickup |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02135918U true JPH02135918U (en) | 1990-11-13 |
| JPH0731367Y2 JPH0731367Y2 (en) | 1995-07-19 |
Family
ID=31554183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989042545U Expired - Lifetime JPH0731367Y2 (en) | 1989-04-13 | 1989-04-13 | Objective lens actuator for optical pickup |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0731367Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60147923A (en) * | 1984-01-10 | 1985-08-05 | Matsushita Electric Ind Co Ltd | Bonding method of magnetic head |
| JPS63157329A (en) * | 1986-12-22 | 1988-06-30 | Toshiba Corp | Objective lens driver for optical pickup head |
-
1989
- 1989-04-13 JP JP1989042545U patent/JPH0731367Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60147923A (en) * | 1984-01-10 | 1985-08-05 | Matsushita Electric Ind Co Ltd | Bonding method of magnetic head |
| JPS63157329A (en) * | 1986-12-22 | 1988-06-30 | Toshiba Corp | Objective lens driver for optical pickup head |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0731367Y2 (en) | 1995-07-19 |