JPS6329232U - - Google Patents
Info
- Publication number
- JPS6329232U JPS6329232U JP12082786U JP12082786U JPS6329232U JP S6329232 U JPS6329232 U JP S6329232U JP 12082786 U JP12082786 U JP 12082786U JP 12082786 U JP12082786 U JP 12082786U JP S6329232 U JPS6329232 U JP S6329232U
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- support shaft
- diameter
- objective lens
- lens holder
- 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 4
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図は本考案に係る光学式ピツクアツプの対
物レンズ駆動装置を示す平面図、第２図は第１図
の断面図、第３Ａ図は本考案の実施例に係る支持
軸に軸受が挿通された状態を示す断面図、第３Ｂ
図は他の実施例に係る支持軸に軸受が挿通された
状態を示す断面図、第４図はコンパクトデイスク
プレーヤの駆動部の構成を示す平面図、第５図は
第４図のＶ矢視方向から見た光学系の配置図、第
６図は従来の光学式ピツクアツプの対物レンズ駆
動装置に装備されている軸受の断面図である。
４２……レンズホルダ、４５……対物レンズ、
５４……軸受、５５，５６……コイル、４７……
磁気発生部材、５９……支持軸、Ａ……支持軸の
軸受挿通部分、Ａ１……軸受挿通部の両端部、Ａ
２……中間部。
FIG. 1 is a plan view showing an objective lens driving device of an optical pickup according to the present invention, FIG. 2 is a sectional view of FIG. 1, and FIG. Cross-sectional view showing the state, No. 3B
The figure is a sectional view showing a state in which a bearing is inserted into a support shaft according to another embodiment, FIG. 4 is a plan view showing the configuration of a drive section of a compact disc player, and FIG. 5 is a view seen from arrow V in FIG. 4. FIG. 6 is a sectional view of a bearing installed in a conventional objective lens drive device of an optical pickup. 42...Lens holder, 45...Objective lens,
54... Bearing, 55, 56... Coil, 47...
Magnetism generating member, 59... Support shaft, A... Bearing insertion portion of support shaft, A 1 ... Both ends of bearing insertion portion, A
2 ...Middle part.
Claims (1)
けられ、この軸受が支持軸に挿通されて、レンズ
ホルダが動作自在に支持されており、且つレンズ
ホルダを回動方向ならびに軸方向へ駆動する磁気
駆動機構が備えられている光学式ピツクアツプの
対物レンズ駆動装置において、前記支持軸は、軸
受が挿通される部分の軸方向両端部の径が互いに
同寸法であり、且つ中間部が両端部の径寸法より
小さいことを特徴とする光学式ピツクアツプの対
物レンズ駆動装置。 A bearing is provided in a lens holder that holds an objective lens, and this bearing is inserted into a support shaft to support the lens holder in a movable manner, and a magnetic drive mechanism that drives the lens holder in the rotational direction and the axial direction. In the objective lens drive device for an optical pickup equipped with a support shaft, the diameter of the support shaft is the same at both ends in the axial direction of the part into which the bearing is inserted, and the diameter of the intermediate part is larger than the diameter of both ends. An optical pickup objective lens drive device characterized by its small size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12082786U JPS6329232U (en) | 1986-08-06 | 1986-08-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12082786U JPS6329232U (en) | 1986-08-06 | 1986-08-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6329232U true JPS6329232U (en) | 1988-02-26 |
Family
ID=31009512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12082786U Pending JPS6329232U (en) | 1986-08-06 | 1986-08-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6329232U (en) |
-
1986
- 1986-08-06 JP JP12082786U patent/JPS6329232U/ja active Pending
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