JPH03124304U - - Google Patents
Info
- Publication number
- JPH03124304U JPH03124304U JP3349790U JP3349790U JPH03124304U JP H03124304 U JPH03124304 U JP H03124304U JP 3349790 U JP3349790 U JP 3349790U JP 3349790 U JP3349790 U JP 3349790U JP H03124304 U JPH03124304 U JP H03124304U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- field modulation
- magnetic
- shielding member
- actuator
- 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
- 238000010586 diagram Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Description
第１図は本考案の一実施例を示す磁界変調機構
の断面図、第２図は同底面図、第３図は上記磁界
変調機構を備えた光磁気デイスク装置の要部の内
部構造図である。
３……光磁気デイスク（記録媒体）、５……光
学ヘツド、７……磁界変調機構、１０……磁界変
調用磁気ヘツド、１１……アクチユエータ機構、
１２……磁気ヘツドヨーク、１３……磁気ヘツド
コイル、１４，２０，２１……磁気シールド部材
、１６……アクチユエータコイル、１７……アク
チユエータマグネツト、１８……アクチユエータ
ヨーク。
Fig. 1 is a sectional view of a magnetic field modulation mechanism showing an embodiment of the present invention, Fig. 2 is a bottom view of the same, and Fig. 3 is an internal structural diagram of the main parts of a magneto-optical disk device equipped with the above magnetic field modulation mechanism. be. 3... Magneto-optical disk (recording medium), 5... Optical head, 7... Magnetic field modulation mechanism, 10... Magnetic head for magnetic field modulation, 11... Actuator mechanism,
12... Magnetic head yoke, 13... Magnetic head coil, 14, 20, 21... Magnetic shielding member, 16... Actuator coil, 17... Actuator magnet, 18... Actuator yoke.
Claims (1)
界変調機構であつて、 記録媒体に外部磁界を印加する磁界変調用磁気
ヘツドと、この磁界変調用磁気ヘツドを電磁力に
よりフオーカス方向に駆動するアクチユエータ機
構とを備えるとともに、 前記磁界変調用磁気ヘツドは記録媒体側を除い
て筒状の磁気シールド部材で囲まれ、 前記アクチユエータ機構は、前記磁気シールド
部材の外周部にアクチユエータコイルまたはアク
チユエータマグネツトを設けて構成し、かつ、周
囲を磁気シールド部材で囲んだことを特徴とする
光磁気デイスク装置における磁界変調機構。[Claim for Utility Model Registration] A magnetic field modulation mechanism in a magneto-optical disk device using a magnetic field modulation method, which comprises a magnetic field modulation magnetic head that applies an external magnetic field to a recording medium, and a magnetic field modulation magnetic head that focuses using electromagnetic force. and an actuator mechanism for driving in the direction, and the magnetic head for magnetic field modulation is surrounded by a cylindrical magnetic shielding member except for the recording medium side, and the actuator mechanism includes an actuator mechanism on an outer periphery of the magnetic shielding member. 1. A magnetic field modulation mechanism in a magneto-optical disk device, comprising a coil or an actuator magnet and surrounded by a magnetic shielding member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3349790U JPH03124304U (en) | 1990-03-29 | 1990-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3349790U JPH03124304U (en) | 1990-03-29 | 1990-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03124304U true JPH03124304U (en) | 1991-12-17 |
Family
ID=31537203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3349790U Pending JPH03124304U (en) | 1990-03-29 | 1990-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03124304U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008279871A (en) * | 2007-05-09 | 2008-11-20 | Seken Ko | Automobile windshield wiper both for rain and snow |
-
1990
- 1990-03-29 JP JP3349790U patent/JPH03124304U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008279871A (en) * | 2007-05-09 | 2008-11-20 | Seken Ko | Automobile windshield wiper both for rain and snow |