JPH0472325U - - Google Patents
Info
- Publication number
- JPH0472325U JPH0472325U JP11444490U JP11444490U JPH0472325U JP H0472325 U JPH0472325 U JP H0472325U JP 11444490 U JP11444490 U JP 11444490U JP 11444490 U JP11444490 U JP 11444490U JP H0472325 U JPH0472325 U JP H0472325U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- bias magnetic
- applies
- magneto
- permanent magnet
- 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
- 230000005284 excitation Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Description
図面は本考案の一実施例を示し、第１図は要部
の縦断側面図、第２図は第１図の右側面図、第３
図は要部の斜視図、第４図ａ，ｂ，ｃはそれぞれ
永久磁石の反転動作順を示す原理図である。
１……光磁気デイスク、２……永久磁石、６…
…磁性体、７……励磁コイル。
The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal sectional side view of the main part, FIG. 2 is a right side view of FIG. 1, and FIG.
The figure is a perspective view of the main part, and FIGS. 4a, 4b, and 4c are principle diagrams showing the order of reversal operation of the permanent magnets, respectively. 1... magneto-optical disk, 2... permanent magnet, 6...
...Magnetic material, 7...Excitation coil.
Claims (1)
を印加するバイアス磁界印加機構において、前記
光磁気デイスクに対してバイアス磁界を印加させ
る永久磁石を、そのバイアス磁界を反転自在にし
て設け、この永久磁石に対してバイアス磁界を反
転させる駆動力を付与する励磁コイルと、前記永
久磁石をバイアス磁界付与位置に停止せしめる磁
性体を設けたことを特徴とするバイアス磁界印加
機構。 In a bias magnetic field applying mechanism that applies a bias magnetic field to a magneto-optical disk during recording, a permanent magnet that applies a bias magnetic field to the magneto-optical disk is provided so that the bias magnetic field can be freely reversed. A bias magnetic field applying mechanism comprising: an excitation coil that applies a driving force to reverse a bias magnetic field; and a magnetic body that stops the permanent magnet at a bias magnetic field application position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11444490U JPH0472325U (en) | 1990-10-31 | 1990-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11444490U JPH0472325U (en) | 1990-10-31 | 1990-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0472325U true JPH0472325U (en) | 1992-06-25 |
Family
ID=31862123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11444490U Pending JPH0472325U (en) | 1990-10-31 | 1990-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0472325U (en) |
-
1990
- 1990-10-31 JP JP11444490U patent/JPH0472325U/ja active Pending