JPS5974528U - Holding device for objective lens for reading optical disk information - Google Patents
Holding device for objective lens for reading optical disk informationInfo
- Publication number
- JPS5974528U JPS5974528U JP16773082U JP16773082U JPS5974528U JP S5974528 U JPS5974528 U JP S5974528U JP 16773082 U JP16773082 U JP 16773082U JP 16773082 U JP16773082 U JP 16773082U JP S5974528 U JPS5974528 U JP S5974528U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- holding device
- optical disk
- disk information
- reading optical
- 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
Landscapes
- Optical Recording Or Reproduction (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、従来の対物レンズ保持装置を示す断面図、第
２図は、フォーカスバネを示す平面図、第３図は、本考
案の一実施例を示す断面図、第４図は、可動部を示す展
開斜視図。
１：本体、２：外磁型磁石、３：ギャップ、４：ボビン
、５：フォーカスバネ、６：粘弾性材、７：中間筒、８
：固着用リング、９：十カバー、１０：弾性部材、１１
：キャップ、１２：中間部材、′１３：対物レンズ、１
４：案内筒。Fig. 1 is a sectional view showing a conventional objective lens holding device, Fig. 2 is a plan view showing a focus spring, Fig. 3 is a sectional view showing an embodiment of the present invention, and Fig. 4 is a movable FIG. 1: Main body, 2: External magnet, 3: Gap, 4: Bobbin, 5: Focus spring, 6: Viscoelastic material, 7: Intermediate cylinder, 8
: Fixing ring, 9: Ten cover, 10: Elastic member, 11
: Cap, 12: Intermediate member, '13: Objective lens, 1
4: Guide cylinder.
Claims (1)
たコイルが外磁型の磁気回路で形成されるギャップに配
置され、前記弾性部材あるいは前記ボビンに固着されて
いる案内筒の外周が前記磁気回路を形成しているヨーク
の中心に有する円形状の内周と摺動可能に配置されたこ
とを特徴とする光デイスク情報読取用対物レンズ保持装
置。 ２ 案内筒の外周とヨーク内周の摺動部分に低摩棒材を
設けたことを特徴とする実用新案登録請求の範囲第１項
記載の対物レンズ保持装置。 ”３ 弾性部材の駆動範
囲内に相当する案内筒の摺動部分に一対の切欠部を設け
た実用新案登録請求の範囲第１項記載の光デイスク情報
読取用対物レンズ保持装置。[Claims for Utility Model Registration] 1. A bobbin supported by an elastic member and a coil turned around the bobbin are arranged in a gap formed by an external magnetic type magnetic circuit, and are fixed to the elastic member or the bobbin. 1. An objective lens holding device for reading optical disk information, characterized in that an outer circumference of a guide cylinder is slidably arranged on a circular inner circumference formed at the center of a yoke forming the magnetic circuit. 2. The objective lens holding device according to claim 1, which is characterized in that a low-friction rod is provided on the sliding portion of the outer periphery of the guide tube and the inner periphery of the yoke. 3. The objective lens holding device for reading optical disk information according to claim 1, wherein a pair of notches are provided in the sliding portion of the guide cylinder corresponding to the driving range of the elastic member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16773082U JPS5974528U (en) | 1982-11-05 | 1982-11-05 | Holding device for objective lens for reading optical disk information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16773082U JPS5974528U (en) | 1982-11-05 | 1982-11-05 | Holding device for objective lens for reading optical disk information |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5974528U true JPS5974528U (en) | 1984-05-21 |
Family
ID=30366882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16773082U Pending JPS5974528U (en) | 1982-11-05 | 1982-11-05 | Holding device for objective lens for reading optical disk information |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5974528U (en) |
-
1982
- 1982-11-05 JP JP16773082U patent/JPS5974528U/en active Pending
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