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JPS61150158A - Method for adjusting verticality between turntable face and optical pickup optical axis - Google Patents

Method for adjusting verticality between turntable face and optical pickup optical axis

Info

Publication number
JPS61150158A
JPS61150158A JP27258784A JP27258784A JPS61150158A JP S61150158 A JPS61150158 A JP S61150158A JP 27258784 A JP27258784 A JP 27258784A JP 27258784 A JP27258784 A JP 27258784A JP S61150158 A JPS61150158 A JP S61150158A
Authority
JP
Japan
Prior art keywords
optical axis
optical
optical pickup
turntable
face
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
JP27258784A
Other languages
Japanese (ja)
Inventor
Makoto Yamahata
山畑 誠
Junichi Watanabe
順一 渡辺
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP27258784A priority Critical patent/JPS61150158A/en
Publication of JPS61150158A publication Critical patent/JPS61150158A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20Driving; Starting; Stopping; Control thereof
    • G11B19/2009Turntables, hubs and motors for disk drives; Mounting of motors in the drive

Landscapes

  • Rotational Drive Of Disk (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)

Abstract

PURPOSE:To attain adjustment of verticality between a table face and an optical pickup optical axis by adjusting the parallelism between a reference face and a disc turntable vertical to the optical axis of the optical pickup while observing it by means of an optical measuring device. CONSTITUTION:A reflecting mirror 6 is arranged on a reference face 5 orthogonal to the optical axis 4 of the optical pickup 2. In this state, a tilt stage is adjusted so that the optical axis 7 is vertical to the reference face 5 while observing the reflecting light from the reflecting mirror 6 is observed by an automatic collimator 1. Then a high reflecting member 9 is placed on the table 3 and the collimator 1 is moved to a rotation shaft 8 of the table 3. In this state, the reflected light from the member 9 is observed by the collimator 1. Based on the observation, the tilt of the table 3 is adjusted so that the face of the member 9 is vertical to the optical axis of the collimator 1. Through the adjustment as above, the parallelism between the reference face 5 and the face of the table 3 is adjusted.

Description

【発明の詳細な説明】 (技術分野) 本発明は、光デイスクドライブ装置におけるターンテー
ブル面と光ビックアンプ光軸との垂直度調整方法に関す
る。  ′ (従来技術) 光デイスクドライブ装置において、光ピックアップが正
常なフォーカシング及びトラッキングを行うためには、
光ピックアップがどの位置にあっても、光ピックアップ
の光軸と光デイスク面とが垂直な位置関係をもっていな
ければならない、そのためには、光デイスク自体の平面
度が要求され、さらに、光ピツクアンプ光軸に対してデ
ィスクターンテーブルの回転軸が平行であること、換言
すれば、ディスクターンテーブル面と光ピックアップ光
軸との垂直度が正しく保たれていることが必要である。
DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a method for adjusting the perpendicularity between a turntable surface and an optical axis of an optical big amplifier in an optical disk drive device. (Prior art) In order for an optical pickup to perform normal focusing and tracking in an optical disk drive device,
No matter where the optical pickup is located, the optical axis of the optical pickup and the surface of the optical disk must have a perpendicular positional relationship.To do this, the flatness of the optical disk itself is required, and the optical pickup amplifier It is necessary that the rotation axis of the disk turntable be parallel to the axis, or in other words, that the perpendicularity between the disk turntable surface and the optical axis of the optical pickup be maintained correctly.

(目的) 本発明の目的は、ディスクターンテーブル面と光ピック
アップ光軸とを垂直な位置関係にするためのターンテー
ブル面と光ピックアップ光軸との垂直度調整方法を提供
することにある。
(Objective) An object of the present invention is to provide a method for adjusting the perpendicularity between a disc turntable surface and an optical pickup optical axis so that the disk turntable surface and the optical pickup optical axis are in a perpendicular positional relationship.

(構成) 本発明のターンテーブル面と光ピックアップ光軸との垂
直度調整方法は、光軸の傾きを調整可能な傾斜ステージ
によって支持されかつ対向した反射面と光軸との垂直度
を確認することができる光学測定装置を用い、光ピツク
アンプの光軸に対し垂直をなす基準面及びディスクター
ンテーブル面にそれぞれ配置した反射部材からの反射光
を上記光学測定装置で観察し、上記基準面とディスクタ
ーンテーブル面との平行度を調整することによりディス
クターンテーブル面と光ピックアップ光軸との垂直度を
調整することを特徴とする。
(Structure) The method for adjusting the perpendicularity between the turntable surface and the optical axis of an optical pickup according to the present invention involves checking the perpendicularity between the optical axis and a reflecting surface supported and opposed by a tilting stage capable of adjusting the inclination of the optical axis. Using an optical measuring device that can perform a It is characterized in that the perpendicularity between the disk turntable surface and the optical axis of the optical pickup is adjusted by adjusting the parallelism with the turntable surface.

以下、図示の実施例を参照しながら本発明の詳細な説明
する。
Hereinafter, the present invention will be described in detail with reference to illustrated embodiments.

第1図において、符号1は対向した反射面と光軸との垂
直度を確認することができる光学測定装置としてのオー
トコリメータ、2は光ピックアップ、3はディスクター
ンテーブルである。オートコリメータ1は、少なくとも
ターンテーブル3の回転中心から同ターンテーブル3に
載置する光ディスクの最外周まで1次元方向に移動可能
なステージを介して支持されているものとし、さらに、
光軸の傾きを調整可能な傾斜ステージによって支持され
ているものとする。第1図の状態では光ピックアップ2
の光軸4に対して直交する基準面5上に高反射部材たる
反射鏡6を配置し、この反射鏡6の上方にオートコリメ
ータ1を位置させである。この状態においてトートコリ
メータ1で反射鏡6からの反射光を観察しながらその先
軸7が上記基準面5に対し垂直となるように前記傾斜ス
テージを調整し、調整が終わったら同ステージを固定す
る。
In FIG. 1, reference numeral 1 denotes an autocollimator as an optical measuring device capable of confirming the perpendicularity between opposing reflecting surfaces and the optical axis, 2 an optical pickup, and 3 a disk turntable. The autocollimator 1 is supported via a stage movable in one dimension from at least the center of rotation of the turntable 3 to the outermost periphery of the optical disk placed on the turntable 3, and further includes:
It is assumed that the optical axis is supported by a tilt stage whose tilt can be adjusted. In the state shown in Figure 1, the optical pickup 2
A reflecting mirror 6, which is a highly reflective member, is placed on a reference plane 5 perpendicular to the optical axis 4 of the optical system, and an autocollimator 1 is placed above this reflecting mirror 6. In this state, while observing the reflected light from the reflecting mirror 6 with the tote collimator 1, adjust the tilting stage so that its tip axis 7 is perpendicular to the reference plane 5, and when the adjustment is completed, fix the stage. .

次に、第2図に示されているように、ターンテーブル3
上に高反射部材9を載せ、前記1次元的に移動可能なス
テージによりオートコリメータ1をターンテーブル3の
回転軸8の方に向かって移動させる。前記傾斜ステージ
は固定されているから、オートコリメータ1の傾きは変
化しない、この状態でターンテーブル3を駆動して反射
部材9を回転させ、オートコリメータ1で反射部材9か
らの反射光を観察する。この観察に基づき、オートコリ
メータ1の光軸に対し反射部材90面が垂直となるよう
にターンテーブル3の面の傾きを調整する。
Next, as shown in FIG.
A high reflection member 9 is placed thereon, and the autocollimator 1 is moved toward the rotation axis 8 of the turntable 3 using the one-dimensionally movable stage. Since the tilting stage is fixed, the tilt of the autocollimator 1 does not change. In this state, the turntable 3 is driven to rotate the reflecting member 9, and the reflected light from the reflecting member 9 is observed with the autocollimator 1. . Based on this observation, the inclination of the surface of the turntable 3 is adjusted so that the surface of the reflecting member 90 is perpendicular to the optical axis of the autocollimator 1.

上記反射部材9は光ディスクの形に作った模擬ディスク
を用いることができる。ここで、ターンテーブル3の面
の傾きを見るのにオートコリメータ1をターンテーブル
3の回転軸8の方に向かって移動させるのは、反射部材
9にはたわみがあることから、反射部材9の内径部で測
定して反射部材9のたわみによる影響を除去するためで
ある。
As the reflecting member 9, a simulated disk made in the shape of an optical disk can be used. Here, the reason why the autocollimator 1 is moved toward the rotation axis 8 of the turntable 3 to check the inclination of the surface of the turntable 3 is because the reflection member 9 has flexure. This is to eliminate the influence of deflection of the reflecting member 9 by measuring at the inner diameter portion.

また、光ビックアンプの光軸そのものを実測することは
できないため、第1図について説明したように、光ピッ
クアップ2上に同光ピックアップ2の光軸4に対し垂直
な位置関係が保証された基準面5を設け、この基準面5
に配置した反射鏡6からの反射光をオートコリメータ1
で観察しながら基準を設定するようにしたものである。
In addition, since it is not possible to actually measure the optical axis of the optical big amplifier itself, as explained with reference to FIG. A surface 5 is provided, and this reference surface 5
The reflected light from the reflecting mirror 6 placed in the autocollimator 1
The standard was set while observing the situation.

以上、第1図及び第2図に示されているような調整を経
ることにより、基準面5とディスクターンテーブル3の
面との平行度が調整されることになり、その結果、光ピ
ックアップ2の光軸4とターンテーブル3の面とを互い
に垂直な位置関係にすることができる。
As described above, through the adjustments shown in FIGS. 1 and 2, the parallelism between the reference surface 5 and the surface of the disk turntable 3 is adjusted, and as a result, the optical pickup 2 The optical axis 4 of the turntable 3 and the surface of the turntable 3 can be positioned perpendicularly to each other.

なお、上記実施例はターンテーブル3側に傾き調整機構
を有している場合であったが、光ピツクアンプ側に傾き
調整機構を設けてもよい、この場合、まずターンテーブ
ルに載置した反射部材の内径側における反射光をオート
コリメータで観察しながらオートコリメータの光軸が上
記反射部材の面に対し垂直となるようにオートコリメー
タの傾きを調整して固定し、次に光ビックアンプの光軸
に対し垂直をなす基準面に配置した反射部材からの反射
光を上記オートコリメータで観察しながらオートコリメ
ータの光軸に対し光ピックアップの基準面が垂直となる
ように光ピックアップの傾きを調整することになる。
In the above embodiment, the tilt adjustment mechanism is provided on the turntable 3 side, but the tilt adjustment mechanism may be provided on the optical pick amplifier side. In this case, first, the reflection member placed on the turntable is While observing the reflected light on the inner diameter side with the autocollimator, adjust and fix the autocollimator's inclination so that the optical axis of the autocollimator is perpendicular to the surface of the reflective member, and then adjust the optical axis of the optical big amplifier. Adjusting the inclination of the optical pickup so that the reference plane of the optical pickup is perpendicular to the optical axis of the autocollimator while observing the reflected light from the reflecting member arranged on a reference plane perpendicular to the optical axis using the autocollimator. become.

(効果) 本発明によれば、ディスクターンテーブル面と光ピック
アップ光軸とを互いに垂直な位置関係に調整することが
可能となった。
(Effects) According to the present invention, it has become possible to adjust the positional relationship between the disk turntable surface and the optical axis of the optical pickup to be perpendicular to each other.

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

図はいずれも本発明の一実施例を示すものであって、第
1図は調整の一段階を示す正面図、第2図は調整の別の
段階を示す正面図である。 1−光学測定装置としてのオートコリメータ、2−・光
ピックアップ、3−  ディスクターンテーブル、 4
−光ピックアップの光軸、 5−基準面、  6.9・
−・−反射部材、 7・−オートコリメータの光軸。 杢I /732囲
The drawings all show one embodiment of the present invention, with FIG. 1 being a front view showing one stage of adjustment, and FIG. 2 being a front view showing another stage of adjustment. 1- Autocollimator as an optical measurement device, 2- Optical pickup, 3- Disc turntable, 4
- Optical axis of optical pickup, 5 - Reference plane, 6.9.
-・-Reflection member, 7.-Optical axis of autocollimator. Heather I/732

Claims (1)

【特許請求の範囲】[Claims] 光軸の傾きを調整可能な傾斜ステージによって支持され
かつ対向した反射面と光軸との垂直度を確認することが
できる光学測定装置を用い、光ピックアップの光軸に対
し垂直をなす基準面及びディスクターンテーブル面にそ
れぞれ配置した反射部材からの反射光を上記光学測定装
置で観察し、上記基準面とディスクターンテーブル面と
の平行度を調整することによりディスクターンテーブル
面と光ピックアップ光軸との垂直度を調整することを特
徴とするターンテーブル面と光ピックアップ光軸との垂
直度調整方法。
Using an optical measuring device that is supported by a tilting stage that can adjust the tilt of the optical axis and is capable of confirming the perpendicularity of the optical axis and the opposing reflecting surface, the reference plane and the optical axis perpendicular to the optical axis of the optical pickup are measured. The reflected light from the reflecting members placed on the disk turntable surface is observed using the optical measuring device, and the parallelism between the reference surface and the disk turntable surface is adjusted to determine whether the disk turntable surface and the optical axis of the optical pickup are aligned. A method for adjusting the perpendicularity between a turntable surface and an optical axis of an optical pickup, the method comprising adjusting the perpendicularity of the turntable surface and the optical axis of an optical pickup.
JP27258784A 1984-12-24 1984-12-24 Method for adjusting verticality between turntable face and optical pickup optical axis Pending JPS61150158A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27258784A JPS61150158A (en) 1984-12-24 1984-12-24 Method for adjusting verticality between turntable face and optical pickup optical axis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27258784A JPS61150158A (en) 1984-12-24 1984-12-24 Method for adjusting verticality between turntable face and optical pickup optical axis

Publications (1)

Publication Number Publication Date
JPS61150158A true JPS61150158A (en) 1986-07-08

Family

ID=17515996

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27258784A Pending JPS61150158A (en) 1984-12-24 1984-12-24 Method for adjusting verticality between turntable face and optical pickup optical axis

Country Status (1)

Country Link
JP (1) JPS61150158A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2001016A2 (en) * 2006-03-29 2008-12-10 Mitsubishi Electric Corporation Lens driving device, optical pickup device and installation adjusting method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2001016A2 (en) * 2006-03-29 2008-12-10 Mitsubishi Electric Corporation Lens driving device, optical pickup device and installation adjusting method
EP2001016A4 (en) * 2006-03-29 2009-12-30 Mitsubishi Electric Corp Lens driving device, optical pickup device and installation adjusting method
US7679846B2 (en) 2006-03-29 2010-03-16 Mitsubishi Denki Kabushiki Kaisha Lens driving device, optical pick up device and adjusting method

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