JPH0963064A - Optical disk device, optical axis adjusting device for optical disk device and optical axis adjustment method for optical disk device - Google Patents
Optical disk device, optical axis adjusting device for optical disk device and optical axis adjustment method for optical disk deviceInfo
- Publication number
- JPH0963064A JPH0963064A JP21900895A JP21900895A JPH0963064A JP H0963064 A JPH0963064 A JP H0963064A JP 21900895 A JP21900895 A JP 21900895A JP 21900895 A JP21900895 A JP 21900895A JP H0963064 A JPH0963064 A JP H0963064A
- Authority
- JP
- Japan
- Prior art keywords
- holder member
- laser light
- optical axis
- optical
- hole
- 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.)
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Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、たとえば光ディス
ク装置に用いられる発光素子の支持構造と、光ディスク
装置の光軸調整装置および光軸調整方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support structure for a light emitting element used in, for example, an optical disc device, an optical axis adjusting device and an optical axis adjusting method for the optical disc device.
【０００２】[0002]
【従来の技術】従来より、図４に示すような、光磁気デ
ィスク装置が知られている。図中１は、発光素子である
レーザダイオードである。このレーザダイオード１を支
持する支持装置であるホルダ２は、後述するようにして
装置本体に取付け支持される。2. Description of the Related Art Conventionally, a magneto-optical disk device as shown in FIG. 4 has been known. In the figure, 1 is a laser diode which is a light emitting element. The holder 2, which is a supporting device for supporting the laser diode 1, is attached to and supported by the main body of the device as described later.
【０００３】上記レーザダイオード１から発振されるレ
ーザ光は、コリメートレンズ３、ビームスプリッタ４、
ガルバノミラー５、絞り込みレンズである対物レンズ６
などから構成される光学系７を介して光ディスクＤに照
射される。The laser light oscillated from the laser diode 1 has a collimating lens 3, a beam splitter 4,
Galvano mirror 5, objective lens 6 which is a focusing lens
The optical disc D is irradiated with the light through an optical system 7 including the above.
【０００４】この光ディスクＤは、この上面側に配置さ
れる電磁コイル８によって、磁化方向などの材質を変更
する記録膜９を有する。ここでは、光ディスクＤはスパ
イラル状に形成される溝（トラック）１０の相互間に形
成される磁化ドメイン１１に対して、アドレスなどのヘ
ッダ信号や、また情報信号の記録を行える。そして、図
示しない回転駆動源に機械的に連結されており、一定の
速度で回転駆動されるようになっている。This optical disk D has a recording film 9 whose material such as magnetization direction is changed by the electromagnetic coil 8 arranged on the upper surface side. Here, the optical disc D can record a header signal such as an address and an information signal on the magnetic domain 11 formed between the grooves (tracks) 10 formed in a spiral shape. Then, it is mechanically connected to a rotary drive source (not shown) and is driven to rotate at a constant speed.
【０００５】レーザビームは、光磁気ディスクＤにおい
て反射し、再び対物レンズ６と、ガルバノミラー５およ
びビームスプリッタ４に戻る。今度は、ここから別のビ
ームスプリッタ１２を介して制御信号を検出する凹凸ビ
ット信号検出系１３と、再生信号を検出する光磁気信号
検出系１４とに分けられるようになってる。The laser beam is reflected by the magneto-optical disk D and returns to the objective lens 6, the galvanometer mirror 5 and the beam splitter 4 again. This time, it can be divided into a concavo-convex bit signal detection system 13 for detecting a control signal via another beam splitter 12 and a magneto-optical signal detection system 14 for detecting a reproduction signal.
【０００６】[0006]
【発明が解決しようとする課題】たとえば、図５に示す
ように、上記レーザダイオード１は、ホルダ２に取付け
固定されている。すなわち、ホルダ２は矩形の板体から
なっていて、この中央部にレーザダイオード１を圧入も
しくは嵌挿の上、接着剤を介して取付け固定する取付け
用孔１５が開口される。ホルダ２の両側部には、固定具
である固定ボルト１６が挿通する挿通用孔１７が設けら
れ、装置本体１８の所定位置に設けられるねじ孔１９に
固定ボルトが螺挿され、ホルダ２の取付け固定がなされ
る。また、上記レーザダイオード１と対向する装置本体
１８部位には、レーザ光を透光案内する孔部２０が設け
られる。For example, as shown in FIG. 5, the laser diode 1 is attached and fixed to a holder 2. That is, the holder 2 is formed of a rectangular plate body, and the mounting hole 15 for mounting and fixing the laser diode 1 by press-fitting or inserting the laser diode 1 through an adhesive is opened in the central portion. An insertion hole 17 through which a fixing bolt 16 as a fixture is inserted is provided on both sides of the holder 2, and the fixing bolt is screwed into a screw hole 19 provided at a predetermined position of the apparatus main body 18 to attach the holder 2. It is fixed. Further, a hole portion 20 for guiding the laser light therethrough is provided at a portion of the device body 18 facing the laser diode 1.
【０００７】このようにして、上記レーザダイオード１
は装置本体１８に取付けられ、精度の高い組立てがなさ
れるが、個々のレーザダイオードを比較すると、個体差
が生じることは避けられない。In this way, the laser diode 1
Is attached to the main body 18 of the apparatus and assembled with high precision, but individual differences inevitably occur when comparing the individual laser diodes.
【０００８】すなわち、レーザダイオード１から放射さ
れるレーザ光が、必ずしも基準の光軸角度に沿うものば
かりでなく、許容される範囲内で光軸角度にズレがあ
り、その程度にバラツキがある。That is, the laser light emitted from the laser diode 1 does not always follow the reference optical axis angle, but the optical axis angle is deviated within an allowable range, and there is a variation in the degree.
【０００９】光軸角度のズレを補正できれば、光磁気デ
ィスク装置を含む光ディスク装置の作用上きわめて有効
である。すなわち、レーザダイオード１から放射される
レーザ光の光軸角度にズレがあると、上記光学系７や、
各検出系１３，１４に設定された光軸とズレが生じてし
まい、その結果、光学性能の劣化や不良の原因となる。If the deviation of the optical axis angle can be corrected, it is extremely effective in the operation of the optical disk device including the magneto-optical disk device. That is, if the optical axis angle of the laser light emitted from the laser diode 1 is deviated, the optical system 7 or
Misalignment with the optical axis set in each of the detection systems 13 and 14 will occur, resulting in deterioration of optical performance and failure.
【００１０】従来構造では、レーザダイオードはホルダ
に取付け固定され、ホルダは装置本体に取付け固定され
ているから、レーザダイオードの光軸角度のズレを補正
する手段を介在させる余地がなく、したがって光軸角度
のズレを補正することはできない。In the conventional structure, since the laser diode is mounted and fixed to the holder, and the holder is mounted and fixed to the main body of the apparatus, there is no room for interposing means for compensating the deviation of the optical axis angle of the laser diode. It is not possible to correct the angle deviation.
【００１１】本発明は、上記事情に着目してなされたも
のであり、その目的とするところは、発光素子の光軸角
度のズレを補正し、常に精度の高い光軸合わせを可能と
して信頼性の向上を図った光ディスク装置と、光ディス
ク装置の光軸調整装置および光軸調整方法を提供しよう
とするものである。The present invention has been made in view of the above circumstances, and an object thereof is to correct misalignment of the optical axis angle of a light emitting element and to always enable highly accurate optical axis alignment to achieve reliability. The present invention aims to provide an optical disc device, an optical axis adjusting device for the optical disc device, and an optical axis adjusting method.
【００１２】[0012]
【課題を解決するための手段】上記目的を満足するた
め、第１の発明の光ディスク装置は、請求項１として、
レーザ光により情報が記録再生される光ディスクと、上
記レーザ光を発振するレーサ光発振手段と、このレーザ
光発振手段と上記光ディスクとの間に介設され上記レー
ザ光を上記光ディスクに集光する光学系とを具備し、上
記レーザ光発振手段は、レーザ発光素子と、このレーザ
発光素子が固定された第１のホルダ部材と、上記光ディ
スクおよび上記光学系が収納されるとともに上記レーザ
発光素子からのレーザ光を上記光学系に導く第１の透孔
が設けられた筐体部と、上記レーザ発光素子からのレー
ザ光を上記第１の透孔に導く第２の透孔が設けられると
ともに上記第１のホルダ部材が連結された第２のホルダ
部材とを具備し、上記第２のホルダ部材には連結杆が突
設され、かつ、上記第１のホルダ部材には上記連結杆が
遊挿される連結用孔が設けられ、上記連結杆と上記連結
用孔との空隙は、上記発光素子の光軸角度のズレ補正が
可能な大きさに設けられているとともに、上記空隙には
上記連結杆を上記連結用孔に連結固定する接着剤が充填
されていることを特徴とする。In order to satisfy the above object, the optical disk device of the first invention is defined as claim 1.
An optical disc on which information is recorded and reproduced by a laser beam, a laser light oscillating unit for oscillating the laser beam, and an optical system provided between the laser beam oscillating unit and the optical disc for condensing the laser beam on the optical disc. The laser light oscillating means includes a laser light emitting element, a first holder member to which the laser light emitting element is fixed, the optical disk and the optical system, and a laser light emitting element from the laser light emitting element. A housing portion provided with a first through hole for guiding laser light to the optical system, a second through hole for guiding the laser light from the laser light emitting element to the first through hole, and the A second holder member to which one holder member is connected, the second holder member is provided with a connecting rod in a protruding manner, and the first holder member is loosely inserted with the connecting rod. For connection Is provided, and the gap between the connecting rod and the connecting hole is provided in a size capable of correcting the deviation of the optical axis angle of the light emitting element, and the connecting rod is provided for connecting the connecting rod. It is characterized in that it is filled with an adhesive for connecting and fixing the holes.
【００１３】請求項２として、請求項１記載の上記レー
ザ発光素子は、レーザダイオードであることを特徴とす
る。上記目的を満足するため、第２の発明の光ディスク
装置の光軸調整装置は、請求項３として、レーザ光によ
り情報が記録再生される光ディスクと、上記レーザ光を
発振するレーサ光発振手段と、このレーザ光発振手段と
上記光ディスクとの間に介設され上記レーザ光を上記光
ディスクに集光する光学系とを具備し、上記レーザ光発
振手段は、レーザ発光素子と、このレーザ発光素子が固
定された第１のホルダ部材と、上記光ディスクおよび上
記光学系が収納されるとともに上記レーザ発光素子から
のレーザ光を上記光学系に導く第１の透孔が設けられた
筐体部と、上記レーザ発光素子からのレーザ光を上記第
１の透孔に導く第２の透孔が設けられるとともに上記第
１のホルダ部材が連結された第２のホルダ部材とを具備
し、上記第２のホルダ部材には連結杆が突設され、か
つ、上記第１のホルダ部材には上記連結杆が遊挿される
連結用孔が設けられ、上記連結杆と上記連結用孔との空
隙は、上記発光素子の光軸角度のズレ補正が可能な大き
さに設けられているとともに、上記空隙には上記連結杆
を上記連結用孔に連結固定する接着剤が充填されている
ことを特徴とする光ディスク装置の光軸調整装置におい
て、上記第１のホルダ部材を保持する第１のホルダ部材
保持手段と、上記第１のホルダ部材保持手段を支持して
第１のホルダ部材の姿勢を制御する姿勢制御手段と、上
記第１のホルダ部材保持手段に保持された第１のホルダ
部材の連結用孔に上記連結杆を遊挿させて上記第２のホ
ルダ部材を保持する第２のホルダ部材保持手段と、上記
第２のホルダ部材保持手段に設けられ上記第１のホルダ
部材保持手段に保持された第１のホルダ部材に固定され
ているレーザ発光素子からのレーザ光を受光して上記光
軸角度のズレを検出する光軸角度検出手段と、上記光軸
角度検出手段における検出結果に基づいて姿勢制御手段
を制御し、第１のホルダ部材の姿勢を調整することによ
り光軸角度のズレを補正する光軸角度補正手段とを具備
したことを特徴とする。According to a second aspect of the present invention, the laser light emitting device according to the first aspect is a laser diode. In order to satisfy the above object, an optical axis adjusting device for an optical disk device according to a second aspect of the invention is an optical disk device in which information is recorded / reproduced by laser light, and a laser light oscillating means for oscillating the laser light. An optical system is provided between the laser light oscillating means and the optical disk for condensing the laser light on the optical disk. The laser light oscillating means is provided with a laser light emitting element and the laser light emitting element is fixed. A first holder member, a housing portion in which the optical disk and the optical system are housed, and a first through hole for guiding the laser light from the laser light emitting element to the optical system, and the laser. A second holder member provided with a second through hole for guiding the laser light from the light emitting element to the first through hole and having the first holder member connected thereto; A connecting rod is projected on the material, and a connecting hole into which the connecting rod is loosely inserted is provided in the first holder member, and a gap between the connecting rod and the connecting hole is the light emitting element. The optical disk device is provided with a size capable of correcting the deviation of the optical axis angle of the optical disc device, and the gap is filled with an adhesive for connecting and fixing the connecting rod to the connecting hole. In the optical axis adjusting device, first holder member holding means for holding the first holder member, and attitude control means for supporting the first holder member holding means and controlling the attitude of the first holder member. Second holder member holding means for holding the second holder member by loosely inserting the connecting rod into the connecting hole of the first holder member held by the first holder member holding means, The second holder member holding means is provided with the above Optical axis angle detecting means for receiving the laser light from the laser light emitting element fixed to the first holder member held by the first holder member holding means and detecting the deviation of the optical axis angle; and the optical axis. An optical axis angle correction means for correcting the deviation of the optical axis angle by controlling the attitude control means based on the detection result of the angle detection means and adjusting the attitude of the first holder member. .
【００１４】請求項４として、請求項３記載の上記第１
のホルダ部材の連結用孔と、上記第２のホルダ部材の連
結杆との空隙に充填された接着剤は紫外線硬化型であっ
て、この紫外線硬化型接着剤に対して紫外線を照射する
紫外線照射手段を具備したことを特徴とする。As a fourth aspect, the first aspect described in the third aspect.
The adhesive filled in the space between the connecting hole of the holder member and the connecting rod of the second holder member is an ultraviolet curable adhesive, and the ultraviolet curable adhesive is irradiated with ultraviolet light. It is characterized by comprising means.
【００１５】請求項５として、請求項４記載の上記紫外
線照射手段は、紫外線源と、一端部が上記紫外線源に接
続され、他端部が第１のホルダ部材保持手段に紫外線硬
化型の接着材が充填された連結用孔の開口部に対向して
設けられた光ファイバとを具備することを特徴とする。According to a fifth aspect of the present invention, in the ultraviolet ray irradiating means according to the fourth aspect, an ultraviolet ray source and one end portion thereof is connected to the ultraviolet ray source, and the other end portion thereof is attached to the first holder member holding means by an ultraviolet curing type adhesive. The optical fiber is provided so as to face the opening of the connection hole filled with the material.
【００１６】上記目的を満足するため、第３の発明の光
ディスク装置の光軸調整方法は、請求項６として、レー
ザ光により情報が記録再生される光ディスクと、上記レ
ーザ光を発振するレーサ光発振手段と、このレーザ光発
振手段と上記光ディスクとの間に介設され上記レーザ光
を上記光ディスクに集光する光学系とを具備し、上記レ
ーザ光発振手段は、レーザ発光素子と、このレーザ発光
素子が固定された第１のホルダ部材と、上記光ディスク
および上記光学系が収納されるとともに上記レーザ発光
素子からのレーザ光を上記光学系に導く第１の透孔が設
けられた筐体部と、上記レーザ発光素子からのレーザ光
を上記第１の透孔に導く第２の透孔が設けられるととも
に上記第１のホルダ部材が連結された第２のホルダ部材
とを具備し、上記第２のホルダ部材には連結杆が突設さ
れ、かつ、上記第１のホルダ部材には上記連結杆が遊挿
される連結用孔が設けられ、上記連結杆と上記連結用孔
との空隙は、上記発光素子の光軸角度のズレ補正が可能
な大きさに設けられているとともに、上記空隙には上記
連結杆を上記連結用孔に連結固定する紫外線硬化型の接
着剤が充填されていることを特徴とする光ディスク装置
の光軸調整方法において、上記第１のホルダ部材を保持
する第１のホルダ部材保持工程と、上記第１のホルダ部
材保持工程で保持された第１のホルダ部材の連結用孔に
上記連結杆を遊挿させて上記第２のホルダ部材を保持す
る第２のホルダ部材保持工程と、上記連結用孔と上記連
結杆との空隙に接着剤を充填する接着剤充填工程と、上
記第１のホルダ部材に固定されるレーザ発光素子からの
レーザ光を受光して上記光軸角度のズレを検出する光軸
角度検出工程と、上記光軸角度検出工程における検出結
果に基づいて第１のホルダ部材の姿勢を調整して上記光
軸角度のズレを補正する光軸角度補正工程と、上記光軸
角度補正工程の後に上記連結用孔と上記連結杆との空隙
に充填されている接着剤に紫外線を照射する紫外線照射
工程とを具備したことを特徴とする。以上のような課題
を解決する手段を採用することにより、発光素子の光軸
角度のズレを補正し、常に精度の高い光軸合わせを可能
とする。In order to satisfy the above object, an optical axis adjusting method for an optical disk device according to a third aspect of the present invention provides, as claim 6, an optical disk on / from which information is recorded / reproduced by laser light, and a laser light oscillation for oscillating the laser light. Means and an optical system interposed between the laser light oscillating means and the optical disk for condensing the laser light on the optical disk, the laser light oscillating means comprising a laser light emitting element and the laser light emitting device. A first holder member to which an element is fixed, a housing part accommodating the optical disc and the optical system, and a first through hole for guiding a laser beam from the laser light emitting element to the optical system. A second holder member provided with a second through hole for guiding a laser beam from the laser light emitting element to the first through hole and having the first holder member connected thereto, A connecting rod is projected from the second holder member, and a connecting hole into which the connecting rod is loosely inserted is provided in the first holder member, and a gap between the connecting rod and the connecting hole is The light-emitting element is provided with a size capable of correcting the deviation of the optical axis angle, and the space is filled with an ultraviolet-curing adhesive that connects and fixes the connecting rod to the connecting hole. In the optical axis adjusting method for an optical disc device, the first holder member holding step of holding the first holder member and the connection of the first holder member held in the first holder member holding step. A second holder member holding step of loosely inserting the connecting rod into the use hole to hold the second holder member, and an adhesive filling step of filling an adhesive into a gap between the connecting hole and the connecting rod. And a lens fixed to the first holder member. The optical axis angle detecting step of receiving the laser beam from the light emitting element to detect the deviation of the optical axis angle, and adjusting the attitude of the first holder member based on the detection result in the optical axis angle detecting step. An optical axis angle correcting step for correcting the deviation of the optical axis angle, and an ultraviolet ray irradiating step for irradiating the adhesive agent filled in the gap between the connecting hole and the connecting rod with ultraviolet light after the optical axis angle correcting step. And is provided. By adopting the means for solving the above problems, it is possible to correct the deviation of the optical axis angle of the light emitting element and to always perform the optical axis alignment with high accuracy.
【００１７】[0017]
【発明の実施の形態】以下、本発明の実施の形態を、図
面を参照して説明するに、光ディスク装置の全体構成
は、先に図４において説明したものをそのまま適用でき
るので、ここでは同図に関わる新たな説明を省略する。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Since the entire structure of the optical disk device described above with reference to FIG. A new description relating to the figure is omitted.
【００１８】図１および図２に、発光素子としてのレー
ザダイオード１を支持するレーザ発振手段Ｌとしてのホ
ルダ３０構成を示す。すなわち、上記ホルダ３０は、上
記レーザダイオード１を備えた第１のホルダ部材３１
と、この第１のホルダ部材３１に後述するようにして連
結固定され、かつ筐体部Ａの基準面Ｓである側壁に取付
け固定される第２のホルダ部材３２とから構成される。1 and 2 show the structure of a holder 30 as a laser oscillation means L for supporting a laser diode 1 as a light emitting element. That is, the holder 30 is the first holder member 31 including the laser diode 1.
And a second holder member 32 which is connected and fixed to the first holder member 31 as will be described later, and which is attached and fixed to the side wall which is the reference surface S of the housing portion A.
【００１９】上記第１のホルダ部材３１は、厚肉の矩形
板状体からなっていて、その中央部にレーザダイオード
１が圧入もしくは接着など適宜な手段で取付け固定され
る取付け用孔３３が設けられる。The first holder member 31 is composed of a thick rectangular plate-like member, and a mounting hole 33 is provided in the center thereof for mounting the laser diode 1 by an appropriate means such as press fitting or bonding. To be
【００２０】この取付け用孔３３の左右所定位置には、
一対の連結用孔３４，３４が設けられる。これら連結用
孔３４は、第２のホルダ部材３２との合わせ面側から図
の手前側に向かって漸次その直径が大なるテーパ状に形
成される。At predetermined left and right positions of the mounting hole 33,
A pair of connecting holes 34, 34 are provided. These connecting holes 34 are formed in a tapered shape whose diameter gradually increases from the mating surface side with the second holder member 32 toward the front side in the drawing.
【００２１】上記第２のホルダ部材３２は、第１のホル
ダ部材３１よりも肉厚の薄い矩形板状体であって、その
中央部にレーザダイオード１から放射されるレーザ光が
透光する第２の透孔３５を備える。The second holder member 32 is a rectangular plate-shaped member having a thickness smaller than that of the first holder member 31, and has a central portion through which the laser light emitted from the laser diode 1 is transmitted. Two through holes 35 are provided.
【００２２】この第２の透孔３５の左右の所定位置であ
る、上記連結用孔３４と対向する部位には、一対の連結
杆３６，３６が一体に突設される。これら連結杆３６は
丸棒状からなっていて、その直径は連結用孔３４の最小
直径よりも小さく、かつその全長は第１のホルダ部材３
１の板厚よりも短く形成される。A pair of connecting rods 36, 36 is integrally formed at the predetermined positions on the left and right of the second through hole 35, facing the connecting hole 34. These connecting rods 36 are formed in the shape of a round bar, the diameter thereof is smaller than the minimum diameter of the connecting holes 34, and the total length thereof is the first holder member 3.
It is formed shorter than the plate thickness of 1.
【００２３】これら連結杆３６，３６は連結用孔３４，
３４に挿入される。上述の寸法設定から、互いの間に十
分な空間スペースが形成されることになり、連結杆３６
は連結用孔３４に遊挿状態にある。These connecting rods 36, 36 are connected holes 34,
It is inserted in 34. Due to the above-mentioned dimension setting, a sufficient space space is formed between the connecting rods 36.
Is loosely inserted in the connecting hole 34.
【００２４】そして、図２にのみ示すように、連結用孔
３４には接着剤３７が充填され、硬化している。したが
って、連結杆３６は連結用孔３４に一体に連結され、第
１のホルダ部材３１と第２のホルダ部材３２は互いに連
結固定される。Then, as shown only in FIG. 2, the connecting hole 34 is filled with an adhesive 37 and hardened. Therefore, the connecting rod 36 is integrally connected to the connecting hole 34, and the first holder member 31 and the second holder member 32 are connected and fixed to each other.
【００２５】この接着剤は、紫外線の照射を受けて硬化
する、紫外線硬化型接着剤（ＵＶ接着剤）であり、後述
するようにして、レーザダイオード１の光軸角度の調整
をなし、ズレを完全に補正したあと硬化作業が行われる
ものである。This adhesive is an ultraviolet curable adhesive (UV adhesive) which is cured by being irradiated with ultraviolet rays. As will be described later, the optical axis angle of the laser diode 1 is adjusted and the deviation is caused. The curing work is performed after completely correcting.
【００２６】そして、第２のホルダ部材３２における左
右両隅部には、固定ボルト３８の挿通用孔３９が設けら
れる。筐体部Ａの側壁であるホルダ３０の取付け面は、
基準面Ｓとして設定される。ここには、上記固定ボルト
３９が螺挿するねじ孔４０が設けられるとともに、第２
のホルダ部材３２の第２の透孔３５とともにレーザ光を
透光案内する第１の透孔４１が設けられる。Then, the left and right corners of the second holder member 32 are provided with insertion holes 39 for the fixing bolts 38. The mounting surface of the holder 30, which is the side wall of the housing A, is
It is set as the reference plane S. Here, a screw hole 40 into which the fixing bolt 39 is screwed is provided, and the second screw
The second through hole 35 of the holder member 32 is provided with the first through hole 41 for transmitting and guiding the laser light.
【００２７】つぎに、レーザダイオード１に個体差があ
り、それぞれの光軸角度にズレがあることを前提にし
て、ホルダ３０を筐体部Ａに取付ける以前に、上記ズレ
を補正する光軸調整装置について説明する。Next, assuming that the laser diode 1 has individual differences and the respective optical axis angles are deviated, before the holder 30 is attached to the casing A, the optical axis adjustment for correcting the deviation is performed. The device will be described.
【００２８】図３に示すように、５０は、周部が支脚５
１…で支持されるベースプレートである。このベースプ
レート５０の中央部に透孔５２が設けられ、さらに透孔
５２と対向する位置に光検出器５３が載設されている。As shown in FIG. 3, the peripheral portion of the reference numeral 50 is the support leg 5.
1 is a base plate supported by. A through hole 52 is provided at the center of the base plate 50, and a photodetector 53 is mounted at a position facing the through hole 52.
【００２９】この光検出器５３は、標準光軸位置を備え
ている一方、レーザ光の放射を受けて、標準光軸位置に
対する光軸角度のズレと位置の検出をなす光軸角度検出
手段であり、その検出信号を光軸角度補正手段である制
御回路５４へ送るようになっている。The photodetector 53 has a standard optical axis position, and is an optical axis angle detecting means for detecting the deviation and the position of the optical axis angle with respect to the standard optical axis position by receiving the laser beam radiation. Yes, the detection signal is sent to the control circuit 54 which is an optical axis angle correction means.
【００３０】ベースフレーム５０の透孔５２周囲には複
数の吸着用孔５５が開口されていて、別途配置される真
空ポンプ５６と配管５７を介して連通される。すなわ
ち、ベースフレーム５０は、その下面側に先に説明した
レーザダイオード１を支持するホルダ３０のうちの第２
のホルダ部材３２を真空吸着する第２のホルダ部材保持
手段を構成する。A plurality of suction holes 55 are opened around the through hole 52 of the base frame 50 and communicate with a separately arranged vacuum pump 56 through a pipe 57. That is, the base frame 50 is the second one of the holders 30 supporting the laser diode 1 described above on the lower surface side thereof.
The second holder member holding means for vacuum-holding the holder member 32 is constructed.
【００３１】このベースプレート５０の下面側はきわめ
て高精度の平面に形成されていて、ここでの基準面Ｓに
設定される。ベースフレーム５０の支脚５１内には、姿
勢調整手段であるステージ装置５８が配置され、さらに
このステージ装置５８上にはクランプ体５９が載設され
る。そして、クランプ体５９は上記第１のホルダ部材３
１を保持する第１のホルダ部材保持手段を構成する。The lower surface side of the base plate 50 is formed into a plane with extremely high precision and is set as the reference plane S here. A stage device 58, which is a posture adjusting means, is arranged in the supporting leg 51 of the base frame 50, and a clamp body 59 is mounted on the stage device 58. Then, the clamp body 59 is the first holder member 3
1 constitutes a first holder member holding means for holding 1.
【００３２】上記ステージ装置５８は、４層に分れてお
り、最下層はＹ方向の位置調整をなすＹステージ６０で
ある。このＹステージ６０上に、Ｘ方向の位置調整をな
すＸステージ６１、Ｙ軸に沿う周方向の位置調整をなす
θＹステージ６２、Ｘ軸に沿う周方向の位置調整をなす
θＸステージ６３が載設される。すなわち、ステージ装
置５８は並進２軸、回転２軸の４軸で調整可能である。The stage device 58 is divided into four layers, and the bottom layer is a Y stage 60 which adjusts the position in the Y direction. On the Y stage 60, an X stage 61 for position adjustment in the X direction, a θY stage 62 for position adjustment in the circumferential direction along the Y axis, and a θX stage 63 for position adjustment in the circumferential direction along the X axis are mounted. To be done. That is, the stage device 58 can be adjusted by four axes of two translation axes and two rotation axes.
【００３３】これら各ステージ６０ないし６３は、全て
上記制御回路５４に電気的に接続されており、上記光検
出器５３からの検出信号を受けた制御回路５４によって
駆動制御されようになっている。All of these stages 60 to 63 are electrically connected to the control circuit 54, and are driven and controlled by the control circuit 54 which receives a detection signal from the photodetector 53.
【００３４】上記クランプ体５９は、その上面部に第１
のホルダ部材３１を着脱自在に支持固定する凹陥部６４
を備えている。そして、この凹陥部６４に対向して、紫
外線照射手段である光ファイバ６５が挿通する一対のフ
ァイバ挿通用孔６６と、中央部に電源コネクタ６７が位
置するコネクタ用段部６８が設けられる。The clamp body 59 has a first
Recess 64 for detachably supporting and fixing the holder member 31 of
It has. A pair of fiber insertion holes 66 through which an optical fiber 65, which is an ultraviolet ray irradiation means, is inserted, and a connector step 68 in which a power supply connector 67 is located are provided in the center of the recess 64.
【００３５】上記光ファイバ６５は、その先端部が第１
のホルダ部材３１の連結用孔３４に対向しており、紫外
線照射源から延出される。上記電源コネクタ６７は市中
電源とレーザダイオード１とを電気的に接続する。The tip of the optical fiber 65 has a first end.
The holder member 31 faces the connecting hole 34 and extends from the ultraviolet irradiation source. The power supply connector 67 electrically connects the commercial power supply and the laser diode 1.
【００３６】なお、上記真空ポンプ５６、紫外線照射源
および市中電源などは、全て上記制御回路５４によって
作動制御されるようになっている。このようにして光軸
調整装置が構成されており、別位置にて、第１のホルダ
部材３１にレーザダイオード１を取付け固定し、かつこ
の連結用孔３４に第２のホルダ部材３２の連結杆３６を
遊挿し、これらの空間スペースにＵＶ型接着剤３７を供
給したら、同図に示すようにセットする。The operation of the vacuum pump 56, the ultraviolet irradiation source, the commercial power source and the like are all controlled by the control circuit 54. The optical axis adjusting device is configured in this manner, the laser diode 1 is attached and fixed to the first holder member 31 at another position, and the connecting rod of the second holder member 32 is connected to the connecting hole 34. After 36 is loosely inserted and the UV adhesive 37 is supplied to these space spaces, they are set as shown in the same figure.
【００３７】上記接着剤３７は、紫外線の照射を受けな
い限り硬化せず、したがって光軸調整装置にセットされ
た状態では第１，第２のホルダ部材３１，３２は互いに
自由に位置変動し得る状態にある。The adhesive 37 is not cured unless it is irradiated with ultraviolet rays, and therefore the first and second holder members 31 and 32 can freely change their positions when set in the optical axis adjusting device. Is in a state.
【００３８】第１のホルダ部材３１をクランプ体５９の
凹陥部６４に嵌合支持する一方、第２のホルダ部材３２
をベースプレート５０の下面である基準面Ｓに当接し、
真空ポンプ５６を駆動してベースプレート５０に密着固
定する。While the first holder member 31 is fitted and supported in the recess 64 of the clamp body 59, the second holder member 32 is provided.
Abutting against the reference surface S which is the lower surface of the base plate 50,
The vacuum pump 56 is driven to closely fix the base plate 50.
【００３９】そして、レーザダイオード１に電源コネク
タ６７を介して電源供給をなし、レーザ光を放射させ
る。このレーザ光は、第１のホルダ部材３１の第１の透
孔３５と、ベースプレート５０の透孔５２を介して、光
検出器５３に到達する。ここでは、あらかじめ設定され
記憶された標準位置に対して、放射されたレーザ光の光
軸角度と位置のズレを検出する。Then, power is supplied to the laser diode 1 through the power connector 67 to emit laser light. This laser light reaches the photodetector 53 via the first through hole 35 of the first holder member 31 and the through hole 52 of the base plate 50. Here, the deviation between the optical axis angle of the emitted laser light and the position is detected with respect to the standard position set and stored in advance.
【００４０】光検出器５３は、その検出信号を制御回路
５４へ送る。この制御回路５４では、ステージ装置５８
に対する制御信号に変換する。各ステージ６０ないし６
３は、第１のホルダ部材３１の姿勢を調整して、ここに
設けられるレーザダイオード１の光軸角度がベースプレ
ート基準面Ｓと垂直となるようにズレを補正するととも
に、レーザダイオード１の発光点位置が第２のホルダ部
材３２を基準として所定位置となるように調整する。The photodetector 53 sends the detection signal to the control circuit 54. In the control circuit 54, the stage device 58
Is converted to a control signal. Each stage 60 to 6
Reference numeral 3 adjusts the attitude of the first holder member 31 to correct the deviation so that the optical axis angle of the laser diode 1 provided here becomes perpendicular to the base plate reference plane S, and at the same time, the emission point of the laser diode 1 The position is adjusted to be a predetermined position with reference to the second holder member 32.
【００４１】レーザダイオード１の光軸角度のズレと位
置が補正されたら、その状態を保持して、紫外線照射源
がファイバに紫外線を供給し、この先端部から照射させ
る。連結用孔３４に充填される接着剤３７は早急に硬化
して、第１のホルダ部材３１と第２のホルダ部材３２と
は連結固定される。After the displacement and the position of the optical axis of the laser diode 1 are corrected, the state is maintained, and the ultraviolet ray irradiation source supplies the ultraviolet ray to the fiber to irradiate it from the tip. The adhesive 37 filled in the connecting hole 34 is quickly hardened, and the first holder member 31 and the second holder member 32 are connected and fixed.
【００４２】すなわち、レーザダイオード１の光軸角度
のズレを正しく補正するとともに位置設定をなしたホル
ダ３０を得られる。そして、このホルダ３０を先に説明
したような装置本体Ａの基準面Ｓに取付け固定すること
により、光ディスク装置を構成できる。That is, it is possible to obtain the holder 30 in which the deviation of the optical axis angle of the laser diode 1 is correctly corrected and the position is set. Then, by attaching and fixing the holder 30 to the reference surface S of the apparatus main body A as described above, an optical disk apparatus can be constructed.
【００４３】なお、上記ステージ装置５８における回転
２軸を構成するθＹステージ６２と、θＸステージ６３
の回転中心はクランプ体５９に固定される状態での上記
レーザダイオード１の発光点位置に一致するように設定
されている。The θY stage 62 and the θX stage 63, which constitute the two rotation axes of the stage device 58, are described.
The center of rotation is set so as to coincide with the position of the light emitting point of the laser diode 1 when it is fixed to the clamp body 59.
【００４４】このことから、光軸調整のために第１のホ
ルダ部材３１を回転させても、発光点が水平面内で大き
く崩れて光検出器５３の測定範囲から外れてしまうよう
なことがない。Therefore, even if the first holder member 31 is rotated to adjust the optical axis, the light emitting point does not largely collapse in the horizontal plane and deviates from the measurement range of the photodetector 53. .
【００４５】また、第１のホルダ部材３１と第２のホル
ダ部材３２を連結する連結杆３６と連結用孔３４の数は
２か所に限定されるものではなく、３か所あるいはそれ
以上あっても支障がない。The number of connecting rods 36 and connecting holes 34 for connecting the first holder member 31 and the second holder member 32 is not limited to two, but may be three or more. But there is no problem.
【００４６】さらに、ステージ装置５８における第１の
ホルダ部材３１の姿勢調整は、必ずしもＸＹ方向の調整
をなすＸＹステージ６１，６０は必要でない。すなわ
ち、ＸＹ軸の傾き調整のみでも可能である。Further, the posture adjustment of the first holder member 31 in the stage device 58 does not necessarily require the XY stages 61 and 60 for adjusting in the XY directions. That is, it is possible to adjust the inclination of the XY axes.
【００４７】[0047]
【発明の効果】以上説明したように請求項１ないし請求
項６の発明によれば、発光素子の光軸角度のズレを確実
に補正でき、常に精度の高い光軸合わせを可能として、
光学性能の向上を図れる効果を奏する。As described above, according to the first to sixth aspects of the present invention, the deviation of the optical axis angle of the light emitting element can be surely corrected, and the optical axis can be aligned with high accuracy at all times.
This has the effect of improving the optical performance.
【図１】本発明の実施の形態を示す、光ディスク装置の
一部を分解した斜視図。FIG. 1 is an exploded perspective view of a part of an optical disk device showing an embodiment of the present invention.
【図２】同実施の形態の、光ディスク装置の一部縦断面
図。FIG. 2 is a partial vertical cross-sectional view of the optical disk device according to the same embodiment.
【図３】同実施の形態の、光軸調整装置の構成図。FIG. 3 is a configuration diagram of an optical axis adjusting device of the same embodiment.
【図４】光軸ディスク装置の構成図。FIG. 4 is a configuration diagram of an optical disc device.
【図５】本発明の従来例を示す、光ディスク装置の一部
を分解した斜視図。FIG. 5 is a perspective view showing a conventional example of the present invention in which a part of an optical disk device is disassembled.
Ｄ…光ディスク、Ｌ…レーザ光発振手段、７…光学系、
１…レーザ発光素子（レーザダイオード）、３１…第１
のホルダ部材、４１…第１の透孔、Ａ…筐体部、３５…
第２の透孔、３２…第２のホルダ部材、３６…連結杆、
３４…連結用孔、３７…接着剤、５９…第１のホルダ部
材保持手段、５８…姿勢制御手段（ステージ装置）、５
０…第２のホルダ部材保持手段（ベースフレーム）、５
３…光軸角度検出手段（光検出器）、５４…光軸角度補
正手段（制御回路）、６５…紫外線照射手段（光ファイ
バ）。D ... Optical disc, L ... Laser beam oscillating means, 7 ... Optical system,
1 ... Laser light emitting element (laser diode), 31 ... First
Holder member, 41 ... First through hole, A ... Housing part, 35 ...
Second through-hole, 32 ... second holder member, 36 ... connecting rod,
34 ... Connection holes, 37 ... Adhesives, 59 ... First holder member holding means, 58 ... Posture control means (stage device), 5
0 ... Second holder member holding means (base frame), 5
3 ... Optical axis angle detection means (photodetector), 54 ... Optical axis angle correction means (control circuit), 65 ... Ultraviolet irradiation means (optical fiber).
Claims (6)
ィスクと、 上記レーザ光を発振するレーサ光発振手段と、 このレーザ光発振手段と上記光ディスクとの間に介設さ
れ上記レーザ光を上記光ディスクに集光する光学系とを
具備し、 上記レーザ光発振手段は、 レーザ発光素子と、 このレーザ発光素子が固定された第１のホルダ部材と、 上記光ディスクおよび上記光学系が収納されるとともに
上記レーザ発光素子からのレーザ光を上記光学系に導く
第１の透孔が設けられた筐体部と、 上記レーザ発光素子からのレーザ光を上記第１の透孔に
導く第２の透孔が設けられるとともに上記第１のホルダ
部材が連結された第２のホルダ部材とを具備し、 上記第２のホルダ部材には連結杆が突設され、かつ、上
記第１のホルダ部材には上記連結杆が遊挿される連結用
孔が設けられ、上記連結杆と上記連結用孔との空隙は、
上記発光素子の光軸角度のズレ補正が可能な大きさに設
けられているとともに、上記空隙には上記連結杆を上記
連結用孔に連結固定する接着剤が充填されていることを
特徴とする光ディスク装置。1. An optical disc on which information is recorded and reproduced by laser light, a laser light oscillation means for oscillating the laser light, and the laser light provided between the laser light oscillation means and the optical disc. The laser light oscillation means includes a laser light emitting element, a first holder member to which the laser light emitting element is fixed, the optical disk and the optical system, and A casing part provided with a first through hole for guiding the laser light from the laser light emitting element to the optical system, and a second through hole for guiding the laser light from the laser light emitting element to the first through hole. A second holder member provided with the first holder member connected thereto, wherein the second holder member is provided with a connecting rod, and the first holder member is connected to the first holder member. Rod Connecting hole is provided to be freely inserted, the gap between the connecting rod and the connecting hole,
It is characterized in that it is provided in a size capable of correcting the deviation of the optical axis angle of the light emitting element, and that the gap is filled with an adhesive for connecting and fixing the connecting rod to the connecting hole. Optical disk device.
であることを特徴とする請求項１記載の光ディスク装
置。2. The optical disk device according to claim 1, wherein the laser light emitting element is a laser diode.
ィスクと、上記レーザ光を発振するレーサ光発振手段
と、このレーザ光発振手段と上記光ディスクとの間に介
設され上記レーザ光を上記光ディスクに集光する光学系
とを具備し、 上記レーザ光発振手段は、レーザ発光素子と、このレー
ザ発光素子が固定された第１のホルダ部材と、上記光デ
ィスクおよび上記光学系が収納されるとともに上記レー
ザ発光素子からのレーザ光を上記光学系に導く第１の透
孔が設けられた筐体部と、上記レーザ発光素子からのレ
ーザ光を上記第１の透孔に導く第２の透孔が設けられる
とともに上記第１のホルダ部材が連結された第２のホル
ダ部材とを具備し、 上記第２のホルダ部材には連結杆が突設され、かつ、上
記第１のホルダ部材には上記連結杆が遊挿される連結用
孔が設けられ、上記連結杆と上記連結用孔との空隙は、
上記発光素子の光軸角度のズレ補正が可能な大きさに設
けられているとともに、上記空隙には上記連結杆を上記
連結用孔に連結固定する接着剤が充填されていることを
特徴とする光ディスク装置の光軸調整装置において、 上記第１のホルダ部材を保持する第１のホルダ部材保持
手段と、 上記第１のホルダ部材保持手段を支持して第１のホルダ
部材の姿勢を制御する姿勢制御手段と、 上記第１のホルダ部材保持手段に保持された第１のホル
ダ部材の連結用孔に上記連結杆を遊挿させて上記第２の
ホルダ部材を保持する第２のホルダ部材保持手段と、 上記第２のホルダ部材保持手段に設けられ上記第１のホ
ルダ部材保持手段に保持された第１のホルダ部材に固定
されているレーザ発光素子からのレーザ光を受光して上
記光軸角度のズレを検出する光軸角度検出手段と、 上記光軸角度検出手段における検出結果に基づいて姿勢
制御手段を制御し、第１のホルダ部材の姿勢を調整する
ことにより光軸角度のズレを補正する光軸角度補正手段
とを具備したことを特徴とする光ディスク装置の光軸角
度調整装置。3. An optical disk on which information is recorded and reproduced by laser light, a laser light oscillation means for oscillating the laser light, and the laser light provided between the laser light oscillation means and the optical disk. The laser light oscillation means includes a laser light emitting element, a first holder member to which the laser light emitting element is fixed, the optical disc and the optical system, and A housing part provided with a first through hole for guiding the laser light from the laser light emitting element to the optical system, and a second through hole for guiding the laser light from the laser light emitting element to the first through hole. A second holder member provided with the first holder member connected thereto, wherein the second holder member is provided with a connecting rod, and the first holder member is connected to the first holder member. Rod Connecting hole is provided to be void of the connecting rod and the connecting hole,
It is characterized in that it is provided in a size capable of correcting the deviation of the optical axis angle of the light emitting element, and that the gap is filled with an adhesive for connecting and fixing the connecting rod to the connecting hole. In an optical axis adjusting device of an optical disk device, a first holder member holding means for holding the first holder member, and a posture for supporting the first holder member holding means and controlling the posture of the first holder member. Control means and second holder member holding means for holding the second holder member by loosely inserting the connecting rod into the connecting hole of the first holder member held by the first holder member holding means. And receiving the laser light from the laser light emitting element fixed to the first holder member provided in the second holder member holding means and held in the first holder member holding means to receive the optical axis angle. To detect the deviation And an optical axis angle for correcting the deviation of the optical axis angle by adjusting the attitude of the first holder member by controlling the attitude control means based on the detection result of the optical axis angle detecting means. An optical axis angle adjusting device for an optical disk device, comprising: a correcting means.
第２のホルダ部材の連結杆との空隙に充填された接着剤
は紫外線硬化型であって、この紫外線硬化型接着剤に対
して紫外線を照射する紫外線照射手段を具備したことを
特徴とする請求項３記載の光ディスク装置の光軸調整装
置。4. The adhesive filled in the space between the connecting hole of the first holder member and the connecting rod of the second holder member is an ultraviolet curable adhesive. 4. The optical axis adjusting device for an optical disk device according to claim 3, further comprising an ultraviolet irradiation means for irradiating ultraviolet rays.
部が上記紫外線源に接続され、他端部が第１のホルダ部
材保持手段に紫外線硬化型の接着材が充填された連結用
孔の開口部に対向して設けられた光ファイバとを具備す
ることを特徴とする請求項４記載の光ディスク装置の光
軸調整装置。5. The ultraviolet irradiating means has an ultraviolet source and a connecting hole in which one end is connected to the ultraviolet source and the other end is filled with an ultraviolet curable adhesive in the first holder member holding means. The optical axis adjusting device for an optical disk device according to claim 4, further comprising an optical fiber provided so as to face the opening of the optical fiber.
ィスクと、上記レーザ光を発振するレーサ光発振手段
と、このレーザ光発振手段と上記光ディスクとの間に介
設され上記レーザ光を上記光ディスクに集光する光学系
とを具備し、 上記レーザ光発振手段は、レーザ発光素子と、このレー
ザ発光素子が固定された第１のホルダ部材と、上記光デ
ィスクおよび上記光学系が収納されるとともに上記レー
ザ発光素子からのレーザ光を上記光学系に導く第１の透
孔が設けられた筐体部と、上記レーザ発光素子からのレ
ーザ光を上記第１の透孔に導く第２の透孔が設けられる
とともに上記第１のホルダ部材が連結された第２のホル
ダ部材とを具備し、 上記第２のホルダ部材には連結杆が突設され、かつ、上
記第１のホルダ部材には上記連結杆が遊挿される連結用
孔が設けられ、上記連結杆と上記連結用孔との空隙は、
上記発光素子の光軸角度のズレ補正が可能な大きさに設
けられているとともに、上記空隙には上記連結杆を上記
連結用孔に連結固定する紫外線硬化型の接着剤が充填さ
れていることを特徴とする光ディスク装置の光軸調整方
法において、 上記第１のホルダ部材を保持する第１のホルダ部材保持
工程と、 上記第１のホルダ部材保持工程で保持された第１のホル
ダ部材の連結用孔に上記連結杆を遊挿させて上記第２の
ホルダ部材を保持する第２のホルダ部材保持工程と、 上記連結用孔と上記連結杆との空隙に接着剤を充填する
接着剤充填工程と、 上記第１のホルダ部材に固定されるレーザ発光素子から
のレーザ光を受光して上記光軸角度のズレを検出する光
軸角度検出工程と、 上記光軸角度検出工程における検出結果に基づいて第１
のホルダ部材の姿勢を調整して上記光軸角度のズレを補
正する光軸角度補正工程と、 上記光軸角度補正工程の後に上記連結用孔と上記連結杆
との空隙に充填されている接着剤に紫外線を照射する紫
外線照射工程とを具備したことを特徴とする光ディスク
装置の光軸調整方法。6. An optical disk on which information is recorded and reproduced by laser light, a laser light oscillation means for oscillating the laser light, and the laser light provided between the laser light oscillation means and the optical disk. The laser light oscillation means includes a laser light emitting element, a first holder member to which the laser light emitting element is fixed, the optical disc and the optical system, and A housing part provided with a first through hole for guiding the laser light from the laser light emitting element to the optical system, and a second through hole for guiding the laser light from the laser light emitting element to the first through hole. A second holder member provided with the first holder member connected thereto, wherein the second holder member is provided with a connecting rod, and the first holder member is connected to the first holder member. Rod Connecting hole is provided to be void of the connecting rod and the connecting hole,
The light-emitting element is provided with a size capable of correcting the deviation of the optical axis angle, and the space is filled with an ultraviolet-curing adhesive that connects and fixes the connecting rod to the connecting hole. In the optical axis adjusting method for an optical disk device, the first holder member holding step of holding the first holder member, and the connection of the first holder member held in the first holder member holding step. A second holder member holding step of loosely inserting the connecting rod into the use hole to hold the second holder member, and an adhesive filling step of filling an adhesive into a gap between the connecting hole and the connecting rod. And an optical axis angle detecting step of detecting a deviation of the optical axis angle by receiving laser light from a laser light emitting element fixed to the first holder member, and based on a detection result in the optical axis angle detecting step. First
Optical axis angle correcting step for correcting the deviation of the optical axis angle by adjusting the attitude of the holder member, and the adhesive filling the gap between the connecting hole and the connecting rod after the optical axis angle correcting step. And a step of irradiating the agent with ultraviolet rays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21900895A JPH0963064A (en) | 1995-08-28 | 1995-08-28 | Optical disk device, optical axis adjusting device for optical disk device and optical axis adjustment method for optical disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21900895A JPH0963064A (en) | 1995-08-28 | 1995-08-28 | Optical disk device, optical axis adjusting device for optical disk device and optical axis adjustment method for optical disk device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0963064A true JPH0963064A (en) | 1997-03-07 |
Family
ID=16728820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21900895A Pending JPH0963064A (en) | 1995-08-28 | 1995-08-28 | Optical disk device, optical axis adjusting device for optical disk device and optical axis adjustment method for optical disk device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0963064A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7245574B2 (en) * | 2002-02-25 | 2007-07-17 | Hitachi, Ltd. | Optical head and its adjusting method and optical disk device using the same |
| US7342870B2 (en) | 2003-05-30 | 2008-03-11 | Sharp Kabushiki Kaisha | Position adjustment apparatus, optical pickup apparatus and position adjustment method |
| US8141110B2 (en) * | 2008-04-03 | 2012-03-20 | Funai Electric Co., Ltd. | Light-source holder and optical pickup having same |
-
1995
- 1995-08-28 JP JP21900895A patent/JPH0963064A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7245574B2 (en) * | 2002-02-25 | 2007-07-17 | Hitachi, Ltd. | Optical head and its adjusting method and optical disk device using the same |
| US7342870B2 (en) | 2003-05-30 | 2008-03-11 | Sharp Kabushiki Kaisha | Position adjustment apparatus, optical pickup apparatus and position adjustment method |
| US8141110B2 (en) * | 2008-04-03 | 2012-03-20 | Funai Electric Co., Ltd. | Light-source holder and optical pickup having same |
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