JPS647432B2 - - Google Patents
Info
- Publication number
- JPS647432B2 JPS647432B2 JP5124683A JP5124683A JPS647432B2 JP S647432 B2 JPS647432 B2 JP S647432B2 JP 5124683 A JP5124683 A JP 5124683A JP 5124683 A JP5124683 A JP 5124683A JP S647432 B2 JPS647432 B2 JP S647432B2
- Authority
- JP
- Japan
- Prior art keywords
- turntable
- guide
- carriage
- optical
- recording medium
- 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 23
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 239000003550 marker Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/34—Guiding record carriers during transducing operation, e.g. for track following
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
- G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
- G11B25/043—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、円盤状記録媒体に光学的に情報を記
録する光学式情報記録装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an optical information recording device that optically records information on a disc-shaped recording medium.
従来例の構成とその問題点
光学式情報記録装置の一般的な概要を第１図
に、円盤状記録媒体を駆動する回転駆動部の略図
を第２図に示し、その概略を簡単に説明する。１
はターンテーブル２の上に搭載されている円盤状
記録媒体（以後原盤と称す）、３は回転部を受け
る軸受である。軸受３の下にはモータ４があり、
ターンテーブル２を介して原盤１を回転させる。
５は軸受３およびモータ４などで構成されている
回転駆動部を固定している固定部材（以後キヤリ
ジと称す）である。このキヤリジ５はリニアガイ
ド６により支持され、精密送りねじ７とナツト８
でと送りモータ９により直線移動する。また、原
盤１に記録される光信号は、レーザ１０より発生
した光ビームを光変調器１２で変調することによ
つて得られ、プリズム１１と焦点制御機能を有す
る対物レンズ１３によつて原盤１上に照射され
る。以上の装置は防振台１４上に搭載されてお
り、外部の振動が伝わらないように構成されてい
る。Configuration of conventional example and its problems Figure 1 shows a general outline of an optical information recording device, and Figure 2 shows a schematic diagram of a rotary drive section that drives a disc-shaped recording medium, and the outline will be briefly explained. . 1
3 is a disk-shaped recording medium (hereinafter referred to as a master disk) mounted on a turntable 2, and a bearing 3 receives a rotating part. There is a motor 4 under the bearing 3.
A master disc 1 is rotated via a turntable 2.
Reference numeral 5 denotes a fixing member (hereinafter referred to as a carriage) that fixes a rotational drive unit composed of a bearing 3, a motor 4, and the like. This carriage 5 is supported by a linear guide 6, and is connected to a precision feed screw 7 and a nut 8.
It is moved in a straight line by the feed motor 9. The optical signal recorded on the master disc 1 is obtained by modulating a light beam generated by a laser 10 with an optical modulator 12, and the optical signal recorded on the master disc 1 is obtained by modulating a light beam generated by a laser 10 with an optical modulator 12. irradiated on top. The above-mentioned device is mounted on a vibration isolating table 14, and is configured so that external vibrations are not transmitted.
一般に、プリズム１１、光変調器１２等の光学
部品と光ビームの光軸調整は、レーザ１０に近い
側の部品より行われ、最後に対物レンズ１３を調
整して光ビームを原盤１上に導くものである。こ
の時、第３図に示すように、ターンテーブルの回
転中心の送りに伴う軌道１６と、原盤１上の光ス
ポツト１５が一致せずａだけずれた場合、光スポ
ツト１５と回転中心を結ぶ線が軌道１６と成す角
をθとすると（１−cosθ）×100℃だけ本来の記録
トラツクが小さくなる（この現象は原盤の内周に
行く程大きくなる）などの不都合が生ずるため、
光スポツト１５と軌道１６とを一致させる作業が
必要になる。従来、この作業は、リニアガイド６
および精密送りねじなどを動かすことができない
ため、光ビームを調整して行つていた。この方法
は、前述したように、レーザ１０側より調整して
いくため、試行錯誤をくり返すことが多く、光学
部品の交換のたびごとに多くの時間を費してい
た。 Generally, the optical axis adjustment of the optical components such as the prism 11 and the optical modulator 12 and the light beam is performed from the components closer to the laser 10, and finally the objective lens 13 is adjusted to guide the light beam onto the master 1. It is something. At this time, as shown in Fig. 3, if the trajectory 16 caused by the feed of the rotation center of the turntable and the light spot 15 on the master 1 do not match and are shifted by a, the line connecting the light spot 15 and the rotation center If θ is the angle formed by
It is necessary to make the light spot 15 and the trajectory 16 coincide. Conventionally, this work was performed using a linear guide 6.
Since it was not possible to move the precision feed screws, etc., the light beam had to be adjusted. As described above, in this method, adjustments are made from the laser 10 side, so trial and error is often repeated, and a lot of time is wasted each time the optical components are replaced.
発明の目的
本発明は、以上のごとき欠点を解消するもの
で、ターンテーブルの回転中心の送りに伴う軌跡
と記録ビームの光軸とを一致させる作業を極めて
容易にした光学式情報記録装置を提供することを
目的とするものである。Purpose of the Invention The present invention aims to eliminate the above-mentioned drawbacks, and provides an optical information recording device that makes it extremely easy to align the trajectory of the rotation center of the turntable with the optical axis of the recording beam. The purpose is to
発明の構成
上記目的を達成するために、本発明は、円盤状
記録媒体を載置するターンテーブルと、前記ター
ンテーブルを回転させる回転駆動部と、前記ター
ンテーブル及び回転駆動部を搭載置したキヤリツ
ジ部と、このキヤリジ部を直線移動せしめるガイ
ドおよび送り手段と、前記ターンテーブル上に載
置した記録媒体に情報光信号を照射させる光学手
段と、前記回転駆動部を前記ガイドの送り方向と
直角方向に微動せしめる案内ブロツクおよび調整
とを有し、さらに、前記ターンテーブル及び回転
駆動部の回転部以外の一部に、前記キヤリジ部の
ガイド及び送り手段による直線移動による前記タ
ーンテーブルの回転中心の移動軌道と一致するマ
ークを設けた構成にしたもので、原盤の回転中心
の送り軌道と記録光ビームのスポツトとの位置合
わせが極めて容易になる。Composition of the Invention In order to achieve the above object, the present invention provides a turntable on which a disc-shaped recording medium is placed, a rotational drive unit that rotates the turntable, and a carriage on which the turntable and rotational drive unit are mounted. a guide and feeding means for linearly moving the carriage section; an optical means for irradiating an information optical signal onto the recording medium placed on the turntable; a guide block and an adjustment for finely moving the turntable; This configuration has a mark that coincides with the trajectory, making it extremely easy to align the feed trajectory of the rotation center of the master with the spot of the recording light beam.
実施例の説明
以下本発明の一実施例を図面に基づいて説明す
る。第４図は本発明による光学式情報記録装置の
キヤリジ部の平面図である。キヤリジ５には、軸
受３をガイド６の送り方向と直角方向に移動案内
するための案内ブロツク１７が設けられ、微調ね
じ１８，１９を操作することにより、軸受３、す
なわち原盤１、ターンテーブル、モータ（図示せ
ず）を含む回転駆動部全体が案内ブロツク１７に
そつて移動可能である。軸受３のキヤリジ５への
固定部には、長穴２０が設けられ、軸受３は移動
完了後ボルト２１によつてキヤリジ５に固定され
る。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below based on the drawings. FIG. 4 is a plan view of the carriage section of the optical information recording device according to the present invention. The carriage 5 is provided with a guide block 17 for guiding the bearing 3 in a direction perpendicular to the feeding direction of the guide 6. By operating the fine adjustment screws 18 and 19, the bearing 3, that is, the master 1, the turntable, The entire rotary drive including the motor (not shown) is movable along the guide block 17. An elongated hole 20 is provided in a portion where the bearing 3 is fixed to the carriage 5, and the bearing 3 is fixed to the carriage 5 with a bolt 21 after the movement is completed.
また、回転駆動部の一部（本実施例では軸受
３）には、あらかじめ原盤１の回転中心の送りに
ともなう軌跡上にマーカー２２を設けておく。も
し、光スポツト１５がマーカー２２よりｂだけの
ズレを生じている場合は、ボルト２１をゆるめ、
微調ねじ１９をマーカー２２が光スポツト１５の
位置に達するまで操作し、ボルト２１をしめる。
逆にブレを生じている場合は、同様に微調ねじ１
８を操作して行う。 Further, a marker 22 is provided in advance on a part of the rotation drive unit (bearing 3 in this embodiment) on a trajectory that follows the feeding of the rotation center of the master 1. If the light spot 15 is shifted by b from the marker 22, loosen the bolt 21 and
Operate the fine adjustment screw 19 until the marker 22 reaches the position of the light spot 15, and then tighten the bolt 21.
On the other hand, if the vibration is occurring, tighten the fine adjustment screw 1 in the same way.
Do this by operating 8.
発明の効果
本発明は円盤状記録媒体を載置するターンテー
ブルと、前記ターンテーブルを回転させる回転駆
動部と、前記ターンテーブル及び回転駆動部を搭
載したキヤリジ部と、このキヤリジ部を直線移動
せしめるガイド及び送り手段と、前記ターンテー
ブル上に載置した記録媒体に情報光信号を照射さ
せる光学手段と、前記ターンテーブル及び回転駆
動部を前記ガイドの送り方向と直角方向に微動せ
しめる案内ブロツク及び調整手段と、前記ターン
テーブル及び回転駆動部の回転部以外の一部に、
前記キヤリジ部のガイド及び送り手段による直線
移動による前記ターンテーブルの回転中心の移動
軌道と一致するマークを設けたものであるので、
原盤の回転中心の送り軌道と記録光ビームのスポ
ツトとの位置合わせが極めて容易になるものであ
り、光学部品および送りガイド等のメンテナンス
による光軸調整の時間が著しく短縮できるもので
ある。Effects of the Invention The present invention includes a turntable on which a disc-shaped recording medium is placed, a rotational drive unit that rotates the turntable, a carriage unit on which the turntable and rotational drive unit are mounted, and a carriage unit that moves the carriage unit in a straight line. A guide and feeding means, an optical means for irradiating an information optical signal onto a recording medium placed on the turntable, and a guide block and adjustment for slightly moving the turntable and rotational drive section in a direction perpendicular to the feeding direction of the guide. means, and a part of the turntable and rotation drive unit other than the rotating part,
Since a mark is provided that coincides with a movement trajectory of the rotation center of the turntable due to the linear movement of the carriage portion by the guide and feeding means,
This makes it extremely easy to align the feed trajectory of the rotation center of the master with the spot of the recording light beam, and the time required for adjusting the optical axis due to maintenance of optical components, feed guides, etc. can be significantly shortened.
第１図は光学式情報記録装置の概略図、第２図
は回転駆動部の略図、第３図はターンテーブルの
回転中心の軌道とスポツトとにズレが生じた場合
の説明図、第４図は本発明の一実施例によるキヤ
リジ部の平面図である。
１……情報記録媒体、２……ターンテーブル、
３……軸受、５……キヤリジ、６……リニアガイ
ド、７，８……送りねじおよびナツト、１５……
スポツト、１６……回転中心の軌道、１７……案
内ブロツク、１８，１９……微調ねじ、２０……
長穴、２１……ボルト、２２……マーカー。
Fig. 1 is a schematic diagram of the optical information recording device, Fig. 2 is a schematic diagram of the rotation drive unit, Fig. 3 is an explanatory diagram when the trajectory of the rotation center of the turntable and the spot are misaligned, and Fig. 4 FIG. 2 is a plan view of a carriage portion according to an embodiment of the present invention. 1... Information recording medium, 2... Turntable,
3... Bearing, 5... Carriage, 6... Linear guide, 7, 8... Feed screw and nut, 15...
Spot, 16... Trajectory of center of rotation, 17... Guide block, 18, 19... Fine adjustment screw, 20...
Long hole, 21... bolt, 22... marker.
Claims (1)
と、前記ターンテーブルを回転させる回転駆動部
と、前記ターンテーブル及び回転駆動部を搭載し
たキヤリジ部と、このキヤリジ部を直線移動せし
めるガイド及び送り手段と、前記ターンテーブル
上に載置した記録媒体に情報光信号を照射させる
光学手段と、前記ターンテーブル及び回転駆動部
を前記ガイドの送り方向と直角方向に微動せしめ
る案内ブロツク及び調整手段と、前記ターンテー
ブル及び回転駆動部の回転部以外の一部に、前記
キヤリジ部のガイド及び送り手段による直線移動
による前記ターンテーブルの回転中心の移動軌道
と一致するマークを設けた光学式情報記録装置。1. A turntable on which a disk-shaped recording medium is placed, a rotational drive section for rotating the turntable, a carriage section on which the turntable and rotational drive section are mounted, and a guide and feeding means for linearly moving the carriage section. , an optical means for irradiating an information optical signal onto a recording medium placed on the turntable; a guide block and adjustment means for slightly moving the turntable and rotation drive unit in a direction perpendicular to the feeding direction of the guide; An optical information recording device, wherein a mark is provided on a part of the table and a rotary drive part other than the rotating part, which coincides with a movement trajectory of the rotation center of the turntable caused by linear movement by the guide and feeding means of the carriage part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5124683A JPS59177776A (en) | 1983-03-25 | 1983-03-25 | Optical information recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5124683A JPS59177776A (en) | 1983-03-25 | 1983-03-25 | Optical information recording device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59177776A JPS59177776A (en) | 1984-10-08 |
| JPS647432B2 true JPS647432B2 (en) | 1989-02-08 |
Family
ID=12881590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5124683A Granted JPS59177776A (en) | 1983-03-25 | 1983-03-25 | Optical information recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59177776A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5269211B2 (en) * | 2010-01-21 | 2013-08-21 | 三菱電機株式会社 | Disk unit |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60120585U (en) * | 1984-01-25 | 1985-08-14 | オリンパス光学工業株式会社 | magnetic recording and reproducing device |
| US4713314A (en) * | 1984-05-07 | 1987-12-15 | Tdk Corporation | Optical recording medium |
| JPH07118179B2 (en) * | 1985-09-24 | 1995-12-18 | ソニー株式会社 | Head azimuth angle adjustment device |
| JP2840495B2 (en) * | 1991-03-20 | 1998-12-24 | キヤノン株式会社 | Optical information recording / reproducing device |
| JPH1196560A (en) * | 1997-09-19 | 1999-04-09 | Kenwood Corp | Disk reproducing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5824252Y2 (en) * | 1978-09-21 | 1983-05-24 | ティアック株式会社 | record player |
-
1983
- 1983-03-25 JP JP5124683A patent/JPS59177776A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5269211B2 (en) * | 2010-01-21 | 2013-08-21 | 三菱電機株式会社 | Disk unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59177776A (en) | 1984-10-08 |
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