JPS6139251A - Magnetic recording optical reproducing device - Google Patents
Magnetic recording optical reproducing deviceInfo
- Publication number
- JPS6139251A JPS6139251A JP15804184A JP15804184A JPS6139251A JP S6139251 A JPS6139251 A JP S6139251A JP 15804184 A JP15804184 A JP 15804184A JP 15804184 A JP15804184 A JP 15804184A JP S6139251 A JPS6139251 A JP S6139251A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- slider
- magnetic
- transmission hole
- reproducing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
-
- 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/122—Flying-type heads, e.g. analogous to Winchester type in magnetic recording
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、磁気記録光再生装置に関する。[Detailed description of the invention] Industrial applications The present invention relates to a magnetic recording optical reproducing device.
背景技術とその問題点
近年、垂直方向に磁化される磁性薄膜を用い、光磁気効
果を利用した高密度記録再生方式例えば磁気記録光再生
方式の研究が盛んＫなされている。BACKGROUND ART AND PROBLEMS In recent years, research has been actively conducted on high-density recording and reproducing systems, such as magnetic recording and optical reproducing systems, that utilize magneto-optical effects using magnetic thin films that are magnetized in the perpendicular direction.
辷の方式は、例えば第１図に示すように基体（１）上に
磁性膜（２）を形成した磁気媒体（３）Ｋ対して磁気ヘ
ッドによって磁気的に情報（４）を記録する。In this method, for example, as shown in FIG. 1, information (4) is magnetically recorded by a magnetic head onto a magnetic medium (3) K in which a magnetic film (2) is formed on a base (1).
そして、このように記録された情報の再生は、例えばレ
ーデ光を偏光子によって直線偏光（５）にして直接磁性
薄膜（２）に照射し、膜面での反射によって偏光面が回
転するといり所謂磁気カー効果を利用し、この反射光（
５ｙを検光子を通じて検出するよ−うになしている。To reproduce the information recorded in this way, for example, Rade light is converted into linearly polarized light (5) by a polarizer and irradiated directly onto the magnetic thin film (2), and the plane of polarization is rotated by reflection on the film surface. This reflected light (
5y is detected through an analyzer.
この方式に基づく磁気記録光再生装置は、従来例えば第
２図及び＄３ＦＩ！Ｊに示すよりに、記録系を構成する
ウィンチェスタ・ヘッドａＩ）を有するスライ／ａの及
びとのスライ／（１３をジンバルばねａｌ ｔ 介して
支持するアーム（１４１と再生系を構成するレーデ・ダ
イオードａ場、偏光子（８）、ハーフ・ミラーａＱと対
物レンズαηを通って光磁気ディスクＱｓに照射した後
反射したレーデ党員を検出する検光子（９）と受光素子
翰よシ成っている。従って、仁のように記録系と再生系
はそれぞれ独立して配置されていたため、装置が大形化
し、また記録した後再生までに時間的遅れが生じるとｈ
う欠点があった。Magnetic recording optical reproducing apparatuses based on this method have conventionally been used, for example, as shown in FIG. As shown in J, an arm (141) that supports a slide/a (13) having a Winchester head (aI) constituting a recording system via a gimbal spring (141) and a radar head (141) constituting a reproduction system. It consists of a diode a field, a polarizer (8), a half mirror aQ, an objective lens αη, an analyzer (9) for detecting the reflected Läde member after being irradiated onto the magneto-optical disk Qs, and a light-receiving element. Therefore, since the recording system and playback system were arranged independently as in the case of Jin, the device became larger and there was a time delay between recording and playback.
There were some drawbacks.
なお、第３図に示すように従来のスライ／（１１は、ウ
ィンチェスタ・ヘッドαυも含めて全体が軟磁性体で形
成されている。As shown in FIG. 3, the conventional slide/(11), including the Winchester head αυ, is entirely made of a soft magnetic material.
発明の目的
本発明は、上述の点に鑑みて、装置の小形化を図ること
ができる七共に記録後から再生までの時間的遅れを改善
することができる磁気記録光再生装置を提供するもので
らる。Purpose of the Invention In view of the above-mentioned points, the present invention provides a magnetic recording optical reproducing device that can reduce the size of the device and improve the time delay from recording to reproduction. Ruru.
発明の概要
本発明は、記録用磁気ヘッド素子部を有するスライＩに
再生用光透過孔が設けられて成る磁気記録光再生装置で
ある。SUMMARY OF THE INVENTION The present invention is a magnetic recording optical reproducing apparatus in which a slide I having a recording magnetic head element section is provided with a reproducing light transmission hole.
上記構成によシ、装置を小形化でき、また記録後から再
生までの時間的遅れが改善され、例えば略同時モニタが
可能になる。With the above configuration, the apparatus can be made smaller, and the time delay from recording to reproduction can be improved, and, for example, almost simultaneous monitoring can be performed.
実施例
本発明においては、第４図及び第５図に示すように、記
録用磁気ヘッド素子部となるウィンチェスタ・ヘッド（
ハ）も含めてスライ／（ハ）の一部分を軟磁性体部に）
で形成し、スライ／（ハ）の他の部分は非磁性体部（２
）で形成すると共にこの非磁性体部（イ）の略中夫に再
生用光透過孔に）を設ける。この非磁性体部（２）の材
料としては、例えばセラミックス、ガラス、ガラスセラ
ミックスを使用することができる。そして、この再生用
光透過孔に）の上には、対物レンズとなる平凸レンズ（
ハ）を配置する。なお、作動ギャップ（支）を含むウィ
ンチェスタ・ヘッド（ハ）のコア部分（ハ）のみを軟磁
性体で形成してもよい。Embodiment In the present invention, as shown in FIGS. 4 and 5, a Winchester head (
(C) is included in the slide/(C) is a soft magnetic material part)
The other part of the slide/(c) is formed of a non-magnetic material part (2
), and a reproduction light transmission hole () is provided approximately in the center of this non-magnetic portion (a). For example, ceramics, glass, and glass ceramics can be used as the material for the nonmagnetic portion (2). Above this reproduction light transmission hole) is a plano-convex lens (
Place c). Note that only the core portion (C) of the Winchester head (C) including the operating gap (support) may be formed of a soft magnetic material.
次に、上記スライ／（ハ）を使用した磁気記録光再生装
置の一実施例を第６図に示す。本装置においては、光磁
気ディスク（イ）の進行方向（イ）に対してウィンチェ
スタ・ヘッド（ハ）の方が再生用光透過孔に）より時間
的に先に位置するように配した状態でスライダ（財）を
ジンバルばね◇）を介してアーム０→に支持させる。ま
た、再生用光透過孔（ハ）に対応する上方位置に光再生
系に）を配置し、この光再生系（至）と記録系のアーム
０埠とを同一の剛性支持体により支持する。光再生系（
至）は図示せざるも、例えばレーデ光源を有し、これか
らのレーザ光（ロ）が偏光子、ハーフミラ−及び対物レ
ンズに）を通ってディスク面に照射され、その反射光が
ハーフミラ−１検光子を通って光検出器にて検出される
ように構成され得る。Next, FIG. 6 shows an embodiment of a magnetic recording optical reproducing apparatus using the above-mentioned Sly/(c). In this device, the Winchester head (c) is positioned temporally earlier than the reproduction light transmission hole (with respect to the traveling direction (a) of the magneto-optical disk (a)). Then, the slider (goods) is supported by the arm 0→ via the gimbal spring ◇). Further, an optical reproducing system (1) is arranged at an upper position corresponding to the reproducing light transmission hole (C), and this optical reproducing system (1) and arm 0 of the recording system are supported by the same rigid support. Optical regeneration system (
Although not shown in the figure, for example, the laser beam (b) is irradiated onto the disk surface through a polarizer, a half mirror, and an objective lens), and the reflected light is sent to the half mirror 1 detector. The photons can be configured to pass through and be detected by a photodetector.
上記発明によれば、再生系の平凸レンズに）が記録系の
スライ／（ハ）に合体されているため、磁気記録再生装
置の小形化が実現できる。ｉた、ウィンチェスタ・ヘッ
ドＱつの方が再生用光透過孔（ロ）よ少時間的に先に来
るように配置し、且つ両者の間隔が従来の装置と比較し
て大幅に短かくなっているので、単回時的に記録の状態
を確認することができる。平凸レン−ｅ（ハ）の配置さ
れているスライ／に）部分は、非磁性体によ多形成され
ているので、再生用光透過孔（至）を通るレーデ光（ロ
）は磁界の影響を受けない。動作中、スライ／（ハ）を
浮動させて光磁気ディスク四との間隔を０．５μｍに保
持させることができるので、平凸レンズ（ハ）の焦点距
離は基本的に確保され得る。According to the above invention, since the plano-convex lens of the reproducing system is combined with the slide/(c) of the recording system, it is possible to downsize the magnetic recording and reproducing apparatus. In addition, the Winchester head Q is arranged so that it comes temporally earlier than the reproduction light transmission hole (b), and the distance between the two is significantly shorter than in conventional devices. This allows you to check the recording status at a single time. Since the slide portion where the plano-convex lens e (c) is placed is made of a non-magnetic material, the radar light (b) passing through the reproduction light transmission hole (to) is affected by the magnetic field. Not affected. During operation, the slide/(c) can be floated and the distance from the magneto-optical disk 4 can be maintained at 0.5 μm, so the focal length of the plano-convex lens (c) can basically be secured.
発明の効果
本発明によれば、記録用磁気ヘッド素子部を有するスラ
イダに再生用光透過孔を設けたため、装置の小形化を図
ることができると共に記録後から再生までの時間的遅れ
を改善することができる。Effects of the Invention According to the present invention, since the slider having the magnetic head element section for recording is provided with a light transmission hole for reproduction, it is possible to downsize the apparatus and improve the time delay between recording and reproduction. be able to.
第１図は光磁気記録の説明に供する磁気媒体の断面図、
第２図は従来の磁気記録光再生装置の概略図、第３図は
従来のスライ〆の斜視図、第４図は本発明に係るスライ
Ｉの斜視図、第５図はその断面図、第６図は本磁気記録
光再生装置の概略図でおる＠
（ロ）はウィンチェスタ・ヘッド、に）は非磁性体部、
に）は磁性体部、鱒はスライダ、（ハ）は再生用光透過
孔である。
第１図
第３図
第４図FIG. 1 is a cross-sectional view of a magnetic medium used to explain magneto-optical recording.
FIG. 2 is a schematic diagram of a conventional magnetic recording optical reproducing device, FIG. 3 is a perspective view of a conventional slider, FIG. 4 is a perspective view of slide I according to the present invention, and FIG. 5 is a sectional view thereof. Figure 6 is a schematic diagram of this magnetic recording optical reproducing device.
(a) is a magnetic material part, (a) is a slider, and (c) is a reproduction light transmission hole. Figure 1 Figure 3 Figure 4
Claims (1)
過孔が設けられて成る磁気記録光再生装置。A magnetic recording optical reproducing device comprising a slider having a recording magnetic head element portion and a reproducing light transmission hole provided therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15804184A JPS6139251A (en) | 1984-07-27 | 1984-07-27 | Magnetic recording optical reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15804184A JPS6139251A (en) | 1984-07-27 | 1984-07-27 | Magnetic recording optical reproducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6139251A true JPS6139251A (en) | 1986-02-25 |
Family
ID=15662990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15804184A Pending JPS6139251A (en) | 1984-07-27 | 1984-07-27 | Magnetic recording optical reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6139251A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2609201A1 (en) * | 1986-12-30 | 1988-07-01 | Bull Sa | MAGNETIC WRITE HEAD AND OPTICAL READING OF AN INFORMATION CARRIER |
| JPH01199301A (en) * | 1988-02-03 | 1989-08-10 | Hitachi Ltd | Optical magnetic storage device |
| JPH01211302A (en) * | 1988-02-19 | 1989-08-24 | Hitachi Metals Ltd | Magnetic head for magneto-optical recording |
| JPH01245449A (en) * | 1988-03-25 | 1989-09-29 | Hitachi Ltd | Optical information recorder |
| EP0390584A2 (en) * | 1989-03-31 | 1990-10-03 | Sharp Kabushiki Kaisha | Photomagnetic composite head |
| US5020041A (en) * | 1987-03-06 | 1991-05-28 | Hitachi, Ltd. | Magneto-optical memory apparatus having a floating magnetic head |
| JPH03292652A (en) * | 1990-04-10 | 1991-12-24 | Alps Electric Co Ltd | Magneto-optical head device |
| US5105408A (en) * | 1988-05-12 | 1992-04-14 | Digital Equipment Corporation | Optical head with flying lens |
| US5161134A (en) * | 1989-06-29 | 1992-11-03 | Digital Equipment Corporation | Method for increasing linear bit density in magneto-optical storage media |
| US5200936A (en) * | 1990-01-09 | 1993-04-06 | International Business Machines Corporation | Magneto-optic method and apparatus for recording and retrieving high-density digital data |
| US5353572A (en) * | 1992-01-28 | 1994-10-11 | Tokyo Automatic Machinery Works, Ltd. | Sealing device of packaging device |
| US5373681A (en) * | 1992-01-28 | 1994-12-20 | Tokyo Automatic Machinery Works, Ltd. | Lug folding apparatus for a packaging device |
| US5442894A (en) * | 1992-01-28 | 1995-08-22 | Tokyo Automatic Machinery Works, Ltd. | Packaging device |
| US6075673A (en) * | 1997-05-05 | 2000-06-13 | Read-Rite Corporation | Composite slider design |
| KR100468835B1 (en) * | 1999-05-04 | 2005-01-29 | 삼성전기주식회사 | head structure for magneto-optical disk drive |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58118026A (en) * | 1981-12-29 | 1983-07-13 | Fujitsu Ltd | Optical magnetic head |
| JPS59142762A (en) * | 1983-01-25 | 1984-08-16 | シ−・アイ・アイ・ハネウエル・ブル | Optical condenser for reading data medium and optical readertherewith |
-
1984
- 1984-07-27 JP JP15804184A patent/JPS6139251A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58118026A (en) * | 1981-12-29 | 1983-07-13 | Fujitsu Ltd | Optical magnetic head |
| JPS59142762A (en) * | 1983-01-25 | 1984-08-16 | シ−・アイ・アイ・ハネウエル・ブル | Optical condenser for reading data medium and optical readertherewith |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2609201A1 (en) * | 1986-12-30 | 1988-07-01 | Bull Sa | MAGNETIC WRITE HEAD AND OPTICAL READING OF AN INFORMATION CARRIER |
| US5020041A (en) * | 1987-03-06 | 1991-05-28 | Hitachi, Ltd. | Magneto-optical memory apparatus having a floating magnetic head |
| JPH01199301A (en) * | 1988-02-03 | 1989-08-10 | Hitachi Ltd | Optical magnetic storage device |
| JPH01211302A (en) * | 1988-02-19 | 1989-08-24 | Hitachi Metals Ltd | Magnetic head for magneto-optical recording |
| JP2685780B2 (en) * | 1988-02-19 | 1997-12-03 | 日立金属株式会社 | Magnetic head for magneto-optical recording |
| JPH01245449A (en) * | 1988-03-25 | 1989-09-29 | Hitachi Ltd | Optical information recorder |
| US5105408A (en) * | 1988-05-12 | 1992-04-14 | Digital Equipment Corporation | Optical head with flying lens |
| US5193082A (en) * | 1989-03-31 | 1993-03-09 | Sharp Kabushiki Kaisha | Optical/magnetic composite head having magnetic and optical heads in one integrated unit |
| EP0390584A2 (en) * | 1989-03-31 | 1990-10-03 | Sharp Kabushiki Kaisha | Photomagnetic composite head |
| US5161134A (en) * | 1989-06-29 | 1992-11-03 | Digital Equipment Corporation | Method for increasing linear bit density in magneto-optical storage media |
| US5200936A (en) * | 1990-01-09 | 1993-04-06 | International Business Machines Corporation | Magneto-optic method and apparatus for recording and retrieving high-density digital data |
| JPH03292652A (en) * | 1990-04-10 | 1991-12-24 | Alps Electric Co Ltd | Magneto-optical head device |
| US5353572A (en) * | 1992-01-28 | 1994-10-11 | Tokyo Automatic Machinery Works, Ltd. | Sealing device of packaging device |
| US5373681A (en) * | 1992-01-28 | 1994-12-20 | Tokyo Automatic Machinery Works, Ltd. | Lug folding apparatus for a packaging device |
| US5442894A (en) * | 1992-01-28 | 1995-08-22 | Tokyo Automatic Machinery Works, Ltd. | Packaging device |
| US6075673A (en) * | 1997-05-05 | 2000-06-13 | Read-Rite Corporation | Composite slider design |
| KR100468835B1 (en) * | 1999-05-04 | 2005-01-29 | 삼성전기주식회사 | head structure for magneto-optical disk drive |
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