JPS6186822U - - Google Patents
Info
- Publication number
- JPS6186822U JPS6186822U JP16975284U JP16975284U JPS6186822U JP S6186822 U JPS6186822 U JP S6186822U JP 16975284 U JP16975284 U JP 16975284U JP 16975284 U JP16975284 U JP 16975284U JP S6186822 U JPS6186822 U JP S6186822U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- holder
- information recording
- optical information
- pickup device
- 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 7
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 230000001678 irradiating effect Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図ないし第３図は既に提案されているピツ
クアツプ装置を説明するための図、第４図は本考
案の第１実施例としてのピツクアツプ装置の要部
縦断面図、第５図及び第６図は本考案の第２実施
例としてのピツクアツプ装置の各々要部縦断面図
及びその一部詳細図、第７図は本考案の第３実施
例であるピツクアツプ装置の一部詳細図である。
主要部分の符号の説明、１８…ホルダ、１８ａ
…座グリ部、１８ｂ…開口部、１８ｃ…ネジ部、
３０……対物レンズ、３１……円筒状ボルト、３
２……粘弾性体。
1 to 3 are diagrams for explaining a pickup device that has already been proposed, FIG. 4 is a vertical cross-sectional view of essential parts of a pickup device as a first embodiment of the present invention, and FIGS. The figures are longitudinal cross-sectional views and partially detailed views of essential parts of a pickup device according to a second embodiment of the present invention, and FIG. 7 is a partially detailed view of a pickup device according to a third embodiment of the present invention. Explanation of symbols of main parts, 18... Holder, 18a
...Spot facing part, 18b...Opening part, 18c...Threaded part,
30... Objective lens, 31... Cylindrical bolt, 3
2... Viscoelastic body.
Claims (1)
めるための対物レンズと、前記対物レンズを担持
するホルダを含み前記対物レンズを少なくとも該
対物レンズの光軸方向において移動可能に且つ該
対物レンズの光軸が前記記録面に対して垂直であ
るように支持する支持機構と、前記対物レンズを
駆動する駆動手段とを含み、前記対物レンズは前
記ホルダに直接取り付けられていることを特徴と
する光学式情報記録再生装置におけるピツクアツ
プ装置。 (2) 前記対物レンズが単一のレンズからなるこ
とを特徴とする実用新案登録請求の範囲第１項記
載の光学式情報記録再生装置におけるピツクアツ
プ装置。 (3) 前記ホルダは略筒状に形成され、前記対物
レンズは前記ホルダの開口端部に設けられた座グ
リ部内に嵌入せられ、前記ホルダの外周部には前
記対物レンズの外周に略対応して開口部が形成さ
れており、前記開口部から接着剤を注入して前記
対物レンズを前記ホルダに固定したことを特徴と
する実用新案登録請求の範囲第１項記載の光学式
情報記録再生装置におけるピツクアツプ装置。 (4) 前記ホルダは略筒状に形成され、前記対物
レンズは前記ホルダの開口端部に設けられた座グ
リ部内に嵌入せられ、前記座グリ部の内周部には
ネジ部が形成されており、前記対物レンズは前記
ネジ部に螺合する円筒状ボルトによつて前記ホル
ダに固定されていることを特徴とする実用新案登
録請求の範囲第１項記載の光学式情報記録再生装
置におけるピツクアツプ装置。 (5) 前記対物レンズと円筒状ボルトの間には環
状の粘弾性体が介装されていることを特徴とする
実用新案登録請求の範囲第３項記載の光学式情報
記録再生装置におけるピツクアツプ装置。[Claims for Utility Model Registration] (1) An objective lens for irradiating a recording surface of a recording medium with spot light, and a holder for supporting the objective lens, the objective lens being supported at least in the optical axis direction of the objective lens. The objective lens includes a support mechanism that supports the objective lens movably so that the optical axis thereof is perpendicular to the recording surface, and a driving means that drives the objective lens, and the objective lens is directly attached to the holder. 1. A pickup device in an optical information recording and reproducing device, characterized in that: (2) A pickup device in an optical information recording/reproducing apparatus according to claim 1, wherein the objective lens is a single lens. (3) The holder is formed into a substantially cylindrical shape, the objective lens is fitted into a counterbore provided at the open end of the holder, and the outer periphery of the holder substantially corresponds to the outer periphery of the objective lens. The optical information recording and reproducing apparatus according to claim 1, which is a registered utility model, characterized in that an opening is formed, and an adhesive is injected through the opening to fix the objective lens to the holder. Pickup device in equipment. (4) The holder is formed into a substantially cylindrical shape, the objective lens is fitted into a counterbore part provided at an open end of the holder, and a threaded part is formed on an inner peripheral part of the counterbore part. In the optical information recording and reproducing apparatus according to claim 1, wherein the objective lens is fixed to the holder by a cylindrical bolt screwed into the threaded portion. Pickup device. (5) A pick-up device in an optical information recording and reproducing apparatus according to claim 3 of the utility model registration, characterized in that an annular viscoelastic body is interposed between the objective lens and the cylindrical bolt. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16975284U JPS6186822U (en) | 1984-11-08 | 1984-11-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16975284U JPS6186822U (en) | 1984-11-08 | 1984-11-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6186822U true JPS6186822U (en) | 1986-06-06 |
Family
ID=30727469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16975284U Pending JPS6186822U (en) | 1984-11-08 | 1984-11-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6186822U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5998327A (en) * | 1982-11-26 | 1984-06-06 | Sanyo Electric Co Ltd | Optical regenerating device |
-
1984
- 1984-11-08 JP JP16975284U patent/JPS6186822U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5998327A (en) * | 1982-11-26 | 1984-06-06 | Sanyo Electric Co Ltd | Optical regenerating device |
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