JPH0371421U - - Google Patents
Info
- Publication number
- JPH0371421U JPH0371421U JP13270289U JP13270289U JPH0371421U JP H0371421 U JPH0371421 U JP H0371421U JP 13270289 U JP13270289 U JP 13270289U JP 13270289 U JP13270289 U JP 13270289U JP H0371421 U JPH0371421 U JP H0371421U
- Authority
- JP
- Japan
- Prior art keywords
- magneto
- optical disk
- optical
- recording
- magnetic field
- 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
- 230000003287 optical effect Effects 0.000 claims description 6
- 230000004907 flux Effects 0.000 claims 1
- 230000005415 magnetization Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Description
第１図は本考案の光磁気デイスク記録再生装置
の要部構成図である。第２図及び第３図は光磁気
記録及び消去の原理を示す説明図である。第４図
は第１図の装置の平面図、第５図は第１図の装置
に用いる磁界発生手段の構成斜視図である。第６
図は本考案の実施効果を示す説明図である。第７
図は本考案の他の実施例の、第４図に相当する平
面図である。第８図は他の実施例の磁界発生手段
の構成斜視図である。
１……光磁気デイスク、２……この光磁気デイ
スクをセツトするターンテーブル、３……ターン
テーブルを駆動するモータ、４……光学式ヘツド
、５……この光学式ヘツドを、光磁気デイスクの
径方向にアクセスするヘツド駆動手段、６……磁
界発生手段、７……この磁界発生手段を、光磁気
デイスクの面方向に移動させる駆動手段である。
FIG. 1 is a block diagram of the main parts of the magneto-optical disk recording and reproducing apparatus of the present invention. FIGS. 2 and 3 are explanatory diagrams showing the principle of magneto-optical recording and erasing. 4 is a plan view of the apparatus shown in FIG. 1, and FIG. 5 is a perspective view of the structure of the magnetic field generating means used in the apparatus shown in FIG. 6th
The figure is an explanatory diagram showing the implementation effect of the present invention. 7th
This figure is a plan view corresponding to FIG. 4 of another embodiment of the present invention. FIG. 8 is a perspective view of a magnetic field generating means according to another embodiment. 1... Magneto-optical disk, 2... Turntable for setting this magneto-optical disk, 3... Motor for driving the turntable, 4... Optical head, 5... This optical head is connected to the magneto-optical disk. Head drive means accessing in the radial direction, 6...magnetic field generation means, 7... drive means for moving this magnetic field generation means in the surface direction of the magneto-optical disk.
Claims (1)
イスクに光スポツトを形成するように光ビームを
照射する光学式ヘツドと、該光学式ヘツドにより
前記光磁気デイスク上に付与された前記光スポツ
トと協力して前記光磁気デイスクの磁化方向を制
御する磁界発生手段とを備え、前記磁界発生手段
の、前記光スポツトの位置における磁界方向に応
じて、情報の前記光磁気デイスクへの記録あるい
は消去を実現する光磁気デイスク記録再生装置に
おいて、前記磁界発生手段は、前記光磁気デイス
クの周方向の異なる部分で、磁束の出射と入射を
行うように構成されており、一方の部分で記録を
、他方の部分で消去を行うように構成されている
ことを特徴とする光磁気デイスク記録再生装置。 an optical head that can move back and forth in the radial direction of the magneto-optical disk and irradiates a light beam to form a light spot on the magneto-optical disk; and an optical head that cooperates with the light spot provided on the magneto-optical disk by the optical head. and magnetic field generating means for controlling the magnetization direction of the magneto-optical disk, and realizes recording or erasing of information on the magneto-optical disk according to the direction of the magnetic field of the magnetic field generating means at the position of the optical spot. In the magneto-optical disk recording and reproducing apparatus, the magnetic field generating means is configured to emit and inject magnetic flux at different parts in the circumferential direction of the magneto-optical disc, and performs recording in one part and recording in the other part. 1. A magneto-optical disk recording and reproducing device, characterized in that it is configured to erase portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13270289U JPH0371421U (en) | 1989-11-15 | 1989-11-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13270289U JPH0371421U (en) | 1989-11-15 | 1989-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0371421U true JPH0371421U (en) | 1991-07-19 |
Family
ID=31680147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13270289U Pending JPH0371421U (en) | 1989-11-15 | 1989-11-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0371421U (en) |
-
1989
- 1989-11-15 JP JP13270289U patent/JPH0371421U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6252370B2 (en) | ||
| JP3065404B2 (en) | External magnetic field generator | |
| JPS63161404U (en) | ||
| JP2801338B2 (en) | Magneto-optical recording device | |
| JPH0371421U (en) | ||
| JPH0687323B2 (en) | Magneto-optical recording / reproducing device | |
| JPH0268301U (en) | ||
| JPS6010401A (en) | Optical magnetic disc device | |
| JPH032429U (en) | ||
| JPS61121523U (en) | ||
| JPH0516655Y2 (en) | ||
| JPH0731839B2 (en) | Optical information recording / reproducing device | |
| JPH02105201U (en) | ||
| JP2503402Y2 (en) | Magneto-optical recording device | |
| JPS6186829U (en) | ||
| JPH0422403Y2 (en) | ||
| JPS6176521U (en) | ||
| JPS6285930U (en) | ||
| JPH0328502U (en) | ||
| JPH03110637U (en) | ||
| JPH0296623U (en) | ||
| JPH0159921U (en) | ||
| JPS63173725U (en) | ||
| JPS61271641A (en) | Optomagnetic recording and reproducing device | |
| JPH02246002A (en) | Magnetic field generating device and recording and reproducing device |