JPH0449325U - - Google Patents
Info
- Publication number
- JPH0449325U JPH0449325U JP9104790U JP9104790U JPH0449325U JP H0449325 U JPH0449325 U JP H0449325U JP 9104790 U JP9104790 U JP 9104790U JP 9104790 U JP9104790 U JP 9104790U JP H0449325 U JPH0449325 U JP H0449325U
- Authority
- JP
- Japan
- Prior art keywords
- optical
- disk drive
- drive device
- optical system
- optical disk
- 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 16
- 210000002858 crystal cell Anatomy 0.000 claims description 2
- 239000004973 liquid crystal related substance Substances 0.000 claims description 2
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Optical Head (AREA)
Description
第１図は本考案の一実施例の光学系の外観構成
説明図、第２図ａ及びｂは第１図の光学系の動作
説明図、第３図ａ，ｂ及びｃは切替ミラーの駆動
機構の一例を示す斜視図Ａ視説明図及びＣ視説明
図、第４図は切替ミラーの駆動機構の制御ブロツ
ク図、第５図ａ及びｂは本考案の第２の実施例の
構成及び動作説明図、第６図は本考案の第３の実
施例の概略構成説明図、第７図ａ及びｂは本考案
の第４の実施例の構成及び動作説明図である。
１……光学マウント（固定光学系）、２，３…
…出射孔、２ａ，３ａ……出射光、４……デイス
ク、５ａ，５ｂ……移動光学系、６……ローラ、
８ａ，８ｂ……ガイド、１０……コイル（ステー
タ）、１１……ロータ、１２，１７……リニアモ
ータ、１５……コイル、１６……ロータ、２０…
…切替ミラー、２２……三角プリズム、２０ａ，
３０ｂ……機枠、３１ａ，３１ｂ……三角プリズ
ム、３２ａ，３２ｂ……対物レンズ、４０……被
ガイド筒、４２……ガイド棒、４３……コイル、
４５……ヨーク、４６……永久磁石、５３……液
晶セル、５５……ビームスプリツタ。
Fig. 1 is an explanatory diagram of the external configuration of an optical system according to an embodiment of the present invention, Fig. 2 a and b are explanatory diagrams of the operation of the optical system of Fig. 1, and Fig. 3 a, b, and c are driving of the switching mirror. A perspective view showing an example of the mechanism; FIG. 4 is a control block diagram of the switching mirror drive mechanism; FIGS. 5a and 5b show the configuration and operation of the second embodiment of the present invention. The explanatory drawings, FIG. 6, are diagrams schematically illustrating the configuration of the third embodiment of the present invention, and FIGS. 7a and 7b are diagrams illustrating the configuration and operation of the fourth embodiment of the present invention. 1...Optical mount (fixed optical system), 2, 3...
...Emission hole, 2a, 3a...Emission light, 4...Disk, 5a, 5b...Moving optical system, 6...Roller,
8a, 8b... Guide, 10... Coil (stator), 11... Rotor, 12, 17... Linear motor, 15... Coil, 16... Rotor, 20...
...Switching mirror, 22...Triangular prism, 20a,
30b... Machine frame, 31a, 31b... Triangular prism, 32a, 32b... Objective lens, 40... Guided tube, 42... Guide rod, 43... Coil,
45...Yoke, 46...Permanent magnet, 53...Liquid crystal cell, 55...Beam splitter.
Claims (1)
情報記録媒体上に照射して情報の記録、再生を行
なう光デイスクドライブ装置において、 前記光デイスクドライブ装置は、一つの固定光
学系と、装着状態におる光情報記録媒体の表裏各
面側に配置された２つの移動光学系と、該固定光
学系内に設けられ光源からのレーザ光を一方の移
動光学系に向けて直進させる位置と該レーザ光を
反射させて上記他方の移動光学系に向けて照射さ
せる位置との間を移動する切替ミラーと、該切替
ミラーの駆動機構の駆動を制御する制御部とを備
えたことを特徴とする光デイスクドライブ装置。 (2) 前記切替ミラーに代えて、ＴＮ配列液晶セ
ルとビームスプリツタからなる切替手段を用いた
ことを特徴とする請求項(1)記載の光デイスクド
ライブ装置。[Claims for Utility Model Registration] (1) An optical disk drive device that records and reproduces information by irradiating an optical information recording medium with a laser beam focused by an objective lens, wherein the optical disk drive device , one fixed optical system, two moving optical systems arranged on each side of the front and back sides of the optical information recording medium in the installed state, and one moving optical system that transmits the laser light from the light source provided in the fixed optical system. a switching mirror that moves between a position where the laser beam moves straight toward the system and a position where the laser beam is reflected and irradiated toward the other moving optical system, and a control unit that controls driving of a drive mechanism of the switching mirror. An optical disk drive device comprising: (2) The optical disk drive device according to claim 1, characterized in that, in place of the switching mirror, a switching means consisting of a TN array liquid crystal cell and a beam splitter is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9104790U JPH0449325U (en) | 1990-08-30 | 1990-08-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9104790U JPH0449325U (en) | 1990-08-30 | 1990-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0449325U true JPH0449325U (en) | 1992-04-27 |
Family
ID=31826317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9104790U Pending JPH0449325U (en) | 1990-08-30 | 1990-08-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0449325U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02153512A (en) * | 1988-12-05 | 1990-06-13 | Matsushita Electric Ind Co Ltd | Laminated capacitor element |
-
1990
- 1990-08-30 JP JP9104790U patent/JPH0449325U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02153512A (en) * | 1988-12-05 | 1990-06-13 | Matsushita Electric Ind Co Ltd | Laminated capacitor element |
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