JPS6387622U - - Google Patents
Info
- Publication number
- JPS6387622U JPS6387622U JP18258886U JP18258886U JPS6387622U JP S6387622 U JPS6387622 U JP S6387622U JP 18258886 U JP18258886 U JP 18258886U JP 18258886 U JP18258886 U JP 18258886U JP S6387622 U JPS6387622 U JP S6387622U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- support shaft
- lens holding
- holding member
- optical pickup
- 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 5
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 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装置
における対物レンズ保持装置の概略構成を示す断
面図、第２図および第３図は本考案に係る光学式
ピツクアツプ装置における対物レンズ保持装置の
振動特性を示し、第２図は外部振動としてサイン
波を仮定して支持軸に変位を与えた時にこの支持
軸からボビンに伝わる変位を示す特性図、第３図
は第２図におけるボビンの変位をフーリエ変換し
て得られたパワースペクトルを示す特性図、第４
図は一般的な光学式ピツクアツプ装置を示した斜
視図、第５図は従来の対物レンズ保持装置の概略
構成を示す断面図、第６図および第７図は従来の
対物レンズ保持装置の振動特性を示し、第６図は
外部振動としてサイン波を仮定して支持軸に変位
を与えた時にこの支持軸からボビンに伝わる変位
を示す特性図、第７図は第６図におけるボビンの
変位をフーリエ変換して得られたパワースペクト
ルを示す特性図である。
１……支持軸、２……吸振層、３……潤滑層、
５……対物レンズ、６……ボビン（対物レンズ保
持部材）。
FIG. 1 is a cross-sectional view showing the schematic structure of the objective lens holding device in the optical pickup device according to the present invention, and FIGS. 2 and 3 show the vibration characteristics of the objective lens holding device in the optical pickup device according to the present invention. Figure 2 is a characteristic diagram showing the displacement transmitted from the support shaft to the bobbin when displacement is applied to the support shaft assuming a sine wave as the external vibration, and Figure 3 is the Fourier transform of the bobbin displacement in Figure 2. Characteristic diagram showing the power spectrum obtained by
The figure is a perspective view showing a general optical pickup device, Figure 5 is a sectional view showing the schematic structure of a conventional objective lens holding device, and Figures 6 and 7 are vibration characteristics of a conventional objective lens holding device. Figure 6 is a characteristic diagram showing the displacement transmitted from the support shaft to the bobbin when the support shaft is displaced assuming a sine wave as external vibration, and Figure 7 is a Fourier diagram showing the displacement of the bobbin in Figure 6. It is a characteristic diagram which shows the power spectrum obtained by conversion. 1... Support shaft, 2... Vibration absorption layer, 3... Lubricating layer,
5...Objective lens, 6...Bobbin (objective lens holding member).
Claims (1)
持軸に嵌入され、この対物レンズ保持部材が支持
軸の軸方向および支持軸を中心として回転方向に
摺動可能になされるとともに、対物レンズ保持部
材が摺動する支持軸の摺動部分に潤滑層が形成さ
れて対物レンズ保持部材の摺動動作が滑らかにな
された対物レンズ保持装置を備えた光学式ピツク
アツプ装置において、 前記支持軸と潤滑層との間に、振動を吸収可能
な吸振層が形成されたことを特徴とする光学式ピ
ツクアツプ装置。[Claims for Utility Model Registration] An objective lens holding member that holds an objective lens is fitted into a support shaft, and this objective lens holding member is made slidable in the axial direction of the support shaft and in the rotational direction around the support shaft. In addition, in the optical pickup device equipped with an objective lens holding device in which a lubricating layer is formed on the sliding portion of the support shaft on which the objective lens holding member slides, the sliding movement of the objective lens holding member is made smooth. An optical pickup device characterized in that a vibration absorbing layer capable of absorbing vibrations is formed between a support shaft and a lubricating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18258886U JPS6387622U (en) | 1986-11-26 | 1986-11-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18258886U JPS6387622U (en) | 1986-11-26 | 1986-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6387622U true JPS6387622U (en) | 1988-06-08 |
Family
ID=31128528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18258886U Pending JPS6387622U (en) | 1986-11-26 | 1986-11-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6387622U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03187021A (en) * | 1989-12-15 | 1991-08-15 | Yamaha Corp | Optical disk recorder |
| JPH04330641A (en) * | 1991-04-16 | 1992-11-18 | Mitsubishi Electric Corp | Objective lens driving device |
-
1986
- 1986-11-26 JP JP18258886U patent/JPS6387622U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03187021A (en) * | 1989-12-15 | 1991-08-15 | Yamaha Corp | Optical disk recorder |
| JPH04330641A (en) * | 1991-04-16 | 1992-11-18 | Mitsubishi Electric Corp | Objective lens driving device |
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