JPS58121140A - Optical disk recorder - Google Patents

Optical disk recorder

Info

Publication number
JPS58121140A
JPS58121140A JP250582A JP250582A JPS58121140A JP S58121140 A JPS58121140 A JP S58121140A JP 250582 A JP250582 A JP 250582A JP 250582 A JP250582 A JP 250582A JP S58121140 A JPS58121140 A JP S58121140A
Authority
JP
Japan
Prior art keywords
information
recording medium
optical disk
rotary table
recording
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
Application number
JP250582A
Other languages
Japanese (ja)
Inventor
Yuji Matsumoto
有史 松本
Toru Tojo
東条　徹
Toshiaki Shinozaki
篠崎　俊昭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP250582A priority Critical patent/JPS58121140A/en
Publication of JPS58121140A publication Critical patent/JPS58121140A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)

Abstract

PURPOSE:To ensure the stable recording of information, by measuring the shift position of a revolving optical disk recording medium and obtaining the shift degree of the recording medium from the result of measurement to give a correction of deflection corresponding to the obtained shift degree. CONSTITUTION:The position of a revolving optical disk recording medium 1 is obtained by a position detector 11 such as a laser interferometer, etc. A position controller 12 calculates both the shift position and the position shift degree of the optical disk 1 and delivers them as a shift control signal. This control signal corrects the shift to the recording of information via a laser beam polarizer 13. Thus the stable recording is possible for information.

Description

【発明の詳細な説明】 発明の技術分野 本発明は光デイスク記録媒体にレーザビーム光を用いて
情報記録を行う光デイスク記録装置に関する。DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to an optical disc recording apparatus that records information on an optical disc recording medium using a laser beam.

発明の技術的背景 光ディスク記録媒体に記録された情報をレーザビーム光
を用いて読出し、画像と音声とを再生する所謂ビデオデ
ィスク装置が注目されている。この穐の光ディスクは、
従来のディスクレコード盤と同様に、一度原盤を作製す
ると、この原盤からプレス加工等によって大量生産する
ことができゐ勢の優れた特徴を有している＠しかして従
来、このような原盤は、ガラス基板上にフォトレジスト
を塗布してなる光デイスク記録媒体１を、第１図に示す
如き記録装置に装着し、上記フォトレジスト面に、記録
情報に応じてオン・オフされるレーデビーム光を照射し
、上記フォトレノストを無光して情報記録を行うことＫ
よシ製作されている。配録装置は、はね２吟の緩衝部材
を介して接地された防振構造の基台３上に、移動機構４
によシ一方向に移動駆動される移動テーブル５、この移
動テーブル５上に設けられて前記記録媒体１を載置して
これを一定速度で回転駆動する回転テーブル６を備えて
いる。これらのテーブル５．６にょ広一定速度で回転さ
れながら一方向に移動される記録媒体１のフォトレジス
ト面（記録面）上に、レーデ発振器７が発生し、光学装
置８によって記録情報に応じてオン・オフされたレーデ
ビーム光が照射されるようになっている。尚、レーデビ
ーム光を記録媒体１に照射する光学系は・各ａｉ元学レ
ンズや焦点合せ機構等を含むことは勿論のことである。TECHNICAL BACKGROUND OF THE INVENTION A so-called video disc device that reads information recorded on an optical disc recording medium using a laser beam and reproduces images and audio has been attracting attention. This Akio optical disc is
Similar to conventional disc records, once a master disc is created, it has the excellent feature of being able to be mass-produced from this master disc by pressing, etc. An optical disk recording medium 1 made of a glass substrate coated with a photoresist is mounted on a recording device as shown in FIG. 1, and the photoresist surface is irradiated with a radar beam light that is turned on and off according to recorded information. and record information on the photorenost without light.
It's well made. The recording device has a moving mechanism 4 mounted on a base 3 with an anti-vibration structure that is grounded via a shock absorbing member.
The apparatus includes a moving table 5 which is driven to move in one direction, and a rotary table 6 which is provided on the moving table 5 and on which the recording medium 1 is placed and rotated at a constant speed. A Rade oscillator 7 is generated on the photoresist surface (recording surface) of the recording medium 1, which is rotated at a wide constant speed and moved in one direction, and an optical device 8 generates a radar oscillator 7 according to the recorded information. It is designed to be irradiated with a radar beam light that is turned on and off. It goes without saying that the optical system for irradiating the recording medium 1 with the radar beam light includes various AI lenses, a focusing mechanism, and the like.

背景技術の問題点 しかして上記記録媒体１０回転と、一方向への移動によ
って記録媒体１上には螺線状に情報記−が行われるが、
駆動機構４の機械的精度や基台３の振動等によって回転
テーブル６（移動テーブル５）の移動速度にむらが生じ
ることがある５、この場合、上記螺線状に形成される情
報記録トラックのピッチにずれが生じ、隣接トラック間
が接触する等の不具合が生じる。このような不具合は、
正確な情報再生の妨げとなるもので、何らかの手段によ
＃）解決することが必要となる。Problems with the Background Art However, information is recorded in a spiral on the recording medium 1 by rotating the recording medium 10 times and moving it in one direction.
The moving speed of the rotary table 6 (moving table 5) may vary due to the mechanical precision of the drive mechanism 4, vibration of the base 3, etc. 5. In this case, the speed of the information recording track formed in the spiral shape may vary. Pitch deviation occurs, causing problems such as contact between adjacent tracks. Such defects are
This interferes with accurate information reproduction, and it is necessary to solve it by some means.

発明の目的 本発明はこのような事情を考慮してなされたもので、そ
の目的とするところは、移動テーブルの速度むらや回転
テーブルの不規則な振動勢に起因する記録トラ、りの接
触等を招くことなく、一定ピツチの螺線状記録を形成し
て安定に情報記録を行い得る実用性の高い光デイスク記
録装置を提供することＫある。Purpose of the Invention The present invention was made in consideration of the above-mentioned circumstances, and its purpose is to eliminate contact between recording tracks and rims caused by uneven speed of the moving table and irregular vibrations of the rotary table. It is an object of the present invention to provide a highly practical optical disk recording device that can stably record information by forming a spiral recording with a constant pitch without causing any problems.

発明の概要 本発明はレーデビーム光による情報記録に供される光デ
ィスク記録媒体を載置し、これを一定速度で回転しなが
ら一方向に移動させるチーゾル機構の上記光ディスク記
録媒体の移動位置を計測し、この計測された位置情報に
基づいて前記レーデビーム光を上記テーブルの移動方向
に偏向制御して、上記速度むらや位置ずれ等を補正する
ものである。Summary of the Invention The present invention measures the moving position of the optical disc recording medium of a chisel mechanism that mounts an optical disc recording medium for information recording using Lede beam light and moves it in one direction while rotating at a constant speed, Based on this measured position information, the radar beam is controlled to be deflected in the moving direction of the table, thereby correcting the speed unevenness, positional deviation, etc.

発明の効果 かくしてこのように構成された本発明装置によれば、回
転駆動される光デイスク記録媒体の移動にむらが生じた
としても、その移動位置誤差分だけレーデビーム光の照
射位置が修正されて情報書込みが行われるので、光デイ
スク記録媒体上には等ピッチで螺線状に情報記銀トラッ
クが形成されていくことになる。しかも、レーデビーム
光を偏向してその照射位置を修正するので、従来のよう
にテーブル移動機構の高精度化を図る勢の工夫を畏せず
、装置全体に亘る構成の簡略化を図シ得る吟、実用上絶
大なる効果を奏する。Effects of the Invention According to the apparatus of the present invention thus constructed, even if unevenness occurs in the movement of the rotationally driven optical disk recording medium, the irradiation position of the radar beam light is corrected by the movement position error. As information is written, information recording tracks are formed in a spiral shape at equal pitches on the optical disk recording medium. Moreover, since the radar beam light is deflected to correct its irradiation position, it is possible to simplify the configuration of the entire device without worrying about ingenuity to improve the precision of the table moving mechanism as in the past. , which has great practical effects.

発明の実施例 以下、図面を参照して本発明の一実施例につき説明する
。Embodiment of the Invention Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

第２図は実施例装置の概略構成図であり、第１図に示す
従来装置と同一部分には同一符号を付して示しである。FIG. 2 is a schematic configuration diagram of the embodiment apparatus, and the same parts as those of the conventional apparatus shown in FIG. 1 are denoted by the same reference numerals.

この装置が従来装置と異にするところは、例えばし・−
デ干渉計等の位置検出器１ノが設けられ、この位置検出
器１ノによって求められた前記光デイスク記録媒体１の
位置情報から移動位置誤差分を算出し、位置制御装置１
２を介して前記レーザビーム光の照射光学系に帰還して
レーデビーム光の照射位置を可変制御するようにした点
にある。上記位置制御装置１１２は、計測された光デイ
スク記録媒体１の移動位置と、上記光デイスク記録媒体
１が本来移動されているべき位置とを比較する等してそ
の位置ずれ量を求め、これをレーデビーム光照射位置の
移動制両信号として田力する如く構成されている。この
制御信号を受けて、前記照射光学系に介在されたレーデ
ビーム光偏向装置１３が付勢され、レーデビーム光照射
位置が光ディスク記録媒体１０移動方向に上記位置ずれ
量に相当した距離だけ移動される。The differences between this device and conventional devices include, for example:
A position detector 1 such as a deinterferometer is provided, and a movement position error is calculated from the position information of the optical disk recording medium 1 determined by the position detector 1, and a position control device 1
2, the laser beam is returned to the irradiation optical system to variably control the irradiation position of the laser beam. The position control device 112 compares the measured moving position of the optical disc recording medium 1 with the position to which the optical disc recording medium 1 should originally have been moved, and calculates the amount of positional deviation. It is configured to act as a signal to control movement of the radar beam irradiation position. In response to this control signal, the Rade beam light deflecting device 13 interposed in the irradiation optical system is activated, and the Rade beam light irradiation position is moved in the moving direction of the optical disk recording medium 10 by a distance corresponding to the positional shift amount.

これによシ、光デイスク記録媒体１の移動むらや、振動
等による光ディスク記録媒体１の情報記録位置のずれが
修正され、ここに尋ピッチで緯線状に記録トラックを形
成しながら情報記録が行われることになる。This corrects uneven movement of the optical disc recording medium 1 and deviations in the information recording position of the optical disc recording medium 1 due to vibrations, etc., and information is recorded here while forming recording tracks in the form of latitude lines at a fathom pitch. You will be killed.

向、光ディスク記録媒体１は回転テーブル６に対して確
実に固定することは勿論のことである◇また回転テーブ
ル６は空気軸受は等を用いて移動テーブル５上に支持さ
れ、回転テーブル６とこれを回転駆動するモータとは、
磁気カッブリングを用いて結合する等して、不規則な振
動が光デイスク記録媒体１に伝達されることを極度に減
少せしむる等の構造的工夫が施こされることは云うまで
もない。Of course, the optical disk recording medium 1 must be securely fixed to the rotary table 6. Also, the rotary table 6 is supported on the movable table 5 using air bearings, etc., and the rotary table 6 and this What is the motor that drives the rotation?
Needless to say, structural measures such as coupling using magnetic coupling to extremely reduce transmission of irregular vibrations to the optical disk recording medium 1 are taken.

ところで、前記光デイスク記録媒体１の移動位置の測定
は、例えば次のようにして行われる。By the way, the movement position of the optical disc recording medium 1 is measured, for example, as follows.

例えばレーデ干渉計等の副長システムを利用する場合、
その計測部を基台３上に設け、これを基準位置とする。For example, when using a sub-head system such as a Rede interferometer,
The measuring section is provided on the base 3, and this is used as a reference position.

そして上記計測部から計測用のレーデビーム光を例えば
鏡面加工された移動テーブル６の端面に照射し、その反
射光を検出して上記照射光との干渉数を計数する勢して
位置測定を行う。尚、上記計測用のレーデビーム光の照
射点としては、回転テーブル５の端面やその回転軸、更
には光デイスク記録媒体１の端面としてもよい。このよ
うにして記録媒体１自体、あるいはこれと一体的に回転
する回転テーブル６の位置を計測すれば、回転駆動モー
タの振動等に起因する位置ずれ等に対しても十分対処す
ることが可能となる。但し、この場合、光デイスク記録
媒体１や回転テーブル６の端面を高精度に特殊加工する
ことが必要となり、その分だけ装置の製作コストが高く
なるが、確実に位置ずれ補正して情報記銀を行うことが
可能となる。Then, the measurement unit irradiates a measurement radar beam light onto, for example, a mirror-finished end face of the movable table 6, detects the reflected light, and counts the number of interferences with the irradiation light to measure the position. Incidentally, the irradiation point of the measurement radar beam light may be the end face of the rotary table 5, its rotation axis, or even the end face of the optical disk recording medium 1. By measuring the position of the recording medium 1 itself or the rotary table 6 that rotates integrally with the recording medium 1 in this way, it is possible to sufficiently deal with positional deviations caused by vibrations of the rotary drive motor, etc. Become. However, in this case, it is necessary to specially process the end faces of the optical disk recording medium 1 and the rotary table 6 with high precision, which increases the production cost of the device, but it is possible to reliably correct positional deviations and store information. It becomes possible to do this.

ま九前記した情報記銀を行うレーデビーム光の偏向制御
に関しては、例えば第３図に示すようにレーデビーム光
の光路中に直角に平行平面ガラス板１４を設け、このプ
ラス板１４を傾斜させてその屈折作用を利用する勢して
、上記レーデビーム光の光軸を平行移動させる等すれば
よい。このようにすれば偏向装置１３を簡易に構成する
ことができ、その実用的利点は多大である＠またレーデ
光路中に設けた反射ミラーの傾きを変える婢して光ディ
スク記録媒体１に対するレーデビーム光照射位置を変え
ることも勿論可能である。Regarding the deflection control of the Radhe beam light for recording information as described above, for example, as shown in FIG. The optical axis of the Lede beam light may be moved in parallel using the refraction effect. In this way, the deflection device 13 can be easily configured, and its practical advantages are great.@Also, by changing the inclination of the reflecting mirror provided in the Radhe optical path, the Radeh beam light is irradiated onto the optical disc recording medium 1. Of course, it is also possible to change the position.

以上のように、本装置によれば一定速度で回転されて情
報記銀に供される光デイスク記録媒体の移動位置を計淘
し、その針槻結釆から本来の所望とする位置からのずれ
量會求めて、記録用レーデビーム光の照射位置を上記ず
れ章に相当した分だけ偏向して修正しながら情報記銀を
行うものである。従って光デイスク記録媒体１上には、
吟ピッチで正確な螺線状記録トラックが形成されて情報
記録がなされることになシ、従来装置のように隣接トラ
ックが接触してしまう勢の不都合を招くことがない。し
かも移動機構等の機械的精度を高めることなしに上述し
た目的を簡易に達成し得る。また上記移動機構等の精度
に左右されないので、長期に亘って安定に情報記録に用
いることができる岬の効果を奏する。更には、光デイス
ク記録媒体１の回転に拘らず、その位置を正確に計測し
て情報書込みの位置制御を行い得るので、その効果は絶
大である。As described above, according to this device, the movement position of the optical disk recording medium that is rotated at a constant speed and used for information storage is planned, and the deviation from the original desired position from the needle clamp is determined. Information is recorded while correcting the irradiation position of the recording radar beam by an amount corresponding to the above-mentioned deviation. Therefore, on the optical disc recording medium 1,
Information is recorded by forming accurate spiral recording tracks at the same pitch, and there is no problem of adjacent tracks coming into contact with each other as in the conventional device. Moreover, the above-mentioned object can be easily achieved without increasing the mechanical precision of the moving mechanism or the like. Furthermore, since it is not affected by the accuracy of the moving mechanism, etc., the cape has the effect of being able to be used stably for information recording over a long period of time. Furthermore, regardless of the rotation of the optical disc recording medium 1, the position of the optical disc recording medium 1 can be accurately measured and the position of information writing can be controlled, so the effect is enormous.

尚、本発明は上記実施例に限定されるものではない。例
えば光デイスク記録媒体の盤面上の最外周に予め同心円
の位ｉｌｌ規準マークを設けておき、このマーク位置を
検出して光デイスク記録媒体の位置を計測するようにし
てもよい。また、位置情報として、回転チーゾル５の一
方向への移動速度やその速度変化等を用いることも勿論
可能である０更には、情報記録用レーデビ−１光の光学
系の構成は、仕様に応じて定めればよいものである。要
するに本発明はその要旨を逸脱しない範囲で種々変形し
て実施することができる。Note that the present invention is not limited to the above embodiments. For example, a concentric position ill reference mark may be provided in advance on the outermost periphery of the surface of the optical disc recording medium, and the position of the optical disc recording medium may be measured by detecting the position of this mark. Furthermore, it is of course possible to use the moving speed of the rotary chisel 5 in one direction or its speed change as position information.Furthermore, the configuration of the optical system of the information recording radar 1 light can be changed according to the specifications. It is only necessary to determine the In short, the present invention can be implemented with various modifications without departing from the gist thereof.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来装置の一例を示す概略構成図、第２図は本
発明の一実施例装置を示す概略構成図、第３図は本発明
に係るレーデビーム光の偏向手段の一例を示す図である
。 １・・・光ディスク記録媒体、２・・・ばね、３・・・
基台、４・・・移動機構、５・・・移動テーブル、６・
・・回転テーブル、７・・・レーデ発振器、８・・・光
学装置、１１・・・位置検出器、１２・・・位置制御装
置、１３・・・偏向装置、１４・・・平行平面ガラス板
。FIG. 1 is a schematic configuration diagram showing an example of a conventional device, FIG. 2 is a schematic configuration diagram showing an example device of the present invention, and FIG. 3 is a diagram showing an example of a radar beam deflection means according to the present invention. be. 1... Optical disc recording medium, 2... Spring, 3...
Base, 4... Moving mechanism, 5... Moving table, 6...
... Rotary table, 7... Rade oscillator, 8... Optical device, 11... Position detector, 12... Position control device, 13... Deflection device, 14... Parallel plane glass plate .

Claims (1)

【特許請求の範囲】 （１）　　情報記録に供される光ディスク記録媒体を載
置して一定速度で回転駆動される回転テーブルと、この
回転テーブルを一方向に移動駆動するテーブル移動機構
と、記録情報に応じてオン・オフされたレーデビーム光
を前記光ディスク記録媒体の記録面に照射して上記記録
面を篇光して情報記録を行うレーデ光学系と、前記テー
ブルの移動機構による前記回転テーブルの移動位置を針
歯し１その計欄情報に従って前記レーデビーム光の配録
面照射位置を前記回転テーブルの移動方向に偏向制御す
る制御手段とを具備したことを％徴とする光デイスク記
録装置０（２）回転テーブルの移動位置の計測は、光デ
ィスク記録媒体の端面位置あるいは回転テーブルの端面
やその１転軸位ａｔ−レーデ干渉計を用いて計測するも
のである特許請求の範囲第１項記載の光ディスク記録装
置。 （３）　　レーデビーム光の照射位置の移動制御は、計
測され九位置情報から求められる移動速度や移動速度む
らの情報に基づいて行われるものである特許請求の範囲
第１項記載の光ディスク記録装置。[Scope of Claims] (1) A rotary table on which an optical disc recording medium for information recording is placed and driven to rotate at a constant speed, a table moving mechanism that drives the rotary table to move in one direction, and a recording medium. A Rade optical system that records information by irradiating a recording surface of the optical disk recording medium with a Rade beam light that is turned on and off according to information, and a Rade optical system that records information by beam-width the recording surface; An optical disk recording apparatus (0) characterized by comprising: a control means for deflecting and controlling a recording surface irradiation position of the radar beam light in the moving direction of the rotary table according to the column information thereof. 2) The moving position of the rotary table is measured using the end face position of the optical disk recording medium or the end face of the rotary table or its one rotational axis at-a Rade interferometer. Optical disc recording device. (3) The optical disc recording device according to claim 1, wherein the movement control of the irradiation position of the radar beam light is performed based on information on the movement speed and movement speed unevenness that are measured and determined from nine position information.
JP250582A 1982-01-11 1982-01-11 Optical disk recorder Pending JPS58121140A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP250582A JPS58121140A (en) 1982-01-11 1982-01-11 Optical disk recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP250582A JPS58121140A (en) 1982-01-11 1982-01-11 Optical disk recorder

Publications (1)

Publication Number Publication Date
JPS58121140A true JPS58121140A (en) 1983-07-19

Family

ID=11531213

Family Applications (1)

Application Number Title Priority Date Filing Date
JP250582A Pending JPS58121140A (en) 1982-01-11 1982-01-11 Optical disk recorder

Country Status (1)

Country Link
JP (1) JPS58121140A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4825432A (en) * 1983-09-27 1989-04-25 Kabushiki Kaisha Toshiba Frictionless moving device for an optical recording system in a high density spiral track-forming apparatus capable of resisting disturbing forces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4825432A (en) * 1983-09-27 1989-04-25 Kabushiki Kaisha Toshiba Frictionless moving device for an optical recording system in a high density spiral track-forming apparatus capable of resisting disturbing forces
US4849955A (en) * 1983-09-27 1989-07-18 Kabushiki Kaisha Toshiba Moving device for an optical recording system in a high density spiral track-forming apparatus

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