JPS6448249A - Optical magnetic recording method - Google Patents
Optical magnetic recording methodInfo
- Publication number
- JPS6448249A JPS6448249A JP62203834A JP20383487A JPS6448249A JP S6448249 A JPS6448249 A JP S6448249A JP 62203834 A JP62203834 A JP 62203834A JP 20383487 A JP20383487 A JP 20383487A JP S6448249 A JPS6448249 A JP S6448249A
- Authority
- JP
- Japan
- Prior art keywords
- magneto
- recording medium
- optical recording
- light source
- electromagnetic coil
- 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
- G11B11/10532—Heads
- G11B11/10534—Heads for recording by magnetising, demagnetising or transfer of magnetisation, by radiation, e.g. for thermomagnetic recording
- G11B11/10536—Heads for recording by magnetising, demagnetising or transfer of magnetisation, by radiation, e.g. for thermomagnetic recording using thermic beams, e.g. lasers
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Optical Head (AREA)
Abstract
PURPOSE:To execute high density-recording by using the pin hole of a fine diameter than a light flux beam diameter emitted from a light source and an electromagnetic coil, highly speedily modulating or successively emitting the light source, highly speedily modulating the electromagnetic coil and executing the recording to a magneto-optical recording medium. CONSTITUTION:A magneto-optical recording medium 10 is moved in an arrow A direction to a magneto-optical head 11 at a recording time and the light flux beam emitted from a light source 12 is diaphragmed in a small diameter beam condition by a pin hole 13 and projected on the magneto-optical recording medium 10. For a light irradiating part 15, temperature rises, coercive force is lowered and a condition, in which the reversal of magnetization easily occurs, is obtained. In such a condition, while the light source 12 is highly speedily modulated like a pulse or successively emitted, an electromagnetic coil 14 side is highly speedily modulated. Then, since the direction of a magnetic field to be impressed is switched, the magnetizing direction of the magneto-optical recording medium 10 is changed and information are recorded by the difference of this magnetizing direction. Thus, a recording pit width not only in the moving direction of the magneto-optical recording medium but also in an direction orthogonal to this direction can be minimized and the recording of higher density can be executed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62203834A JPS6448249A (en) | 1987-08-17 | 1987-08-17 | Optical magnetic recording method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62203834A JPS6448249A (en) | 1987-08-17 | 1987-08-17 | Optical magnetic recording method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6448249A true JPS6448249A (en) | 1989-02-22 |
Family
ID=16480474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62203834A Pending JPS6448249A (en) | 1987-08-17 | 1987-08-17 | Optical magnetic recording method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6448249A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5124961A (en) * | 1989-12-28 | 1992-06-23 | Fuji Xerox Co., Ltd. | Floating head for use with a recording apparatus of magneto-optical memory device |
-
1987
- 1987-08-17 JP JP62203834A patent/JPS6448249A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5124961A (en) * | 1989-12-28 | 1992-06-23 | Fuji Xerox Co., Ltd. | Floating head for use with a recording apparatus of magneto-optical memory device |
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