JPS6285930U - - Google Patents

Info

Publication number
JPS6285930U
JPS6285930U JP17770285U JP17770285U JPS6285930U JP S6285930 U JPS6285930 U JP S6285930U JP 17770285 U JP17770285 U JP 17770285U JP 17770285 U JP17770285 U JP 17770285U JP S6285930 U JPS6285930 U JP S6285930U
Authority
JP
Japan
Prior art keywords
magnetic pole
recording medium
magnetic
recording
optical
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.)
Granted
Application number
JP17770285U
Other languages
Japanese (ja)
Other versions
JPH0413773Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1985177702U priority Critical patent/JPH0413773Y2/ja
Publication of JPS6285930U publication Critical patent/JPS6285930U/ja
Application granted granted Critical
Publication of JPH0413773Y2 publication Critical patent/JPH0413773Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Magnetic Heads (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の光磁気記録再生装置の斜視図
、第２図は磁気回路の断面図、第３図は従来例の
磁気回路の斜視図、第４図は従来例の磁気回路の
断面図である。 １……記録媒体、２……光学ヘツド、３……対
物レンズ、４……磁界印加用磁気回路、５……磁
極、６……励磁コイル、７……継鉄、８……レー
ザー光、１０……スピンドルモーター、１２……
光学ヘツド駆動装置、１４……アーム部、１６…
…励磁コイル、１８……第１の磁極、２０……第
１の磁極歯、２２……回動軸、２４……第２の磁
極、２６……開口部、２８……付き出し部、３０
……磁気回路、３２……磁極移動装置。 Fig. 1 is a perspective view of the magneto-optical recording/reproducing device of the present invention, Fig. 2 is a sectional view of a magnetic circuit, Fig. 3 is a perspective view of a conventional magnetic circuit, and Fig. 4 is a sectional view of a conventional magnetic circuit. It is a diagram. DESCRIPTION OF SYMBOLS 1... Recording medium, 2... Optical head, 3... Objective lens, 4... Magnetic circuit for applying magnetic field, 5... Magnetic pole, 6... Excitation coil, 7... Yoke, 8... Laser light, 10... spindle motor, 12...
Optical head drive device, 14... Arm portion, 16...
... Excitation coil, 18 ... First magnetic pole, 20 ... First magnetic pole tooth, 22 ... Rotation shaft, 24 ... Second magnetic pole, 26 ... Opening, 28 ... Projection, 30
...Magnetic circuit, 32...Magnetic pole moving device.

Claims (1)

【実用新案登録請求の範囲】 (1) 記録媒体を所定の位置に装着する装着手段
と、記録媒体面を走査しながら前記記録媒体面に
レーザー光を照射し情報の記録再生を行なう光学
ヘツドと、前記記録媒体面に垂直磁界を印加する
磁気回路とを有し、前記磁気回路は、磁束発生手
段と、前記記録媒体を挟んで前記光学ヘツドと対
向し前記光学ヘツドの走査領域に垂直磁界を印加
し得る長さを有する第１の磁極と、前記記録媒体
を挟んで前記第１の磁極と対向する位置に第２の
磁極を有し、前記第１の磁極を前記第２の磁極に
対して可動とした光磁気記録再生装置。 (2) 第１の磁極は磁極移動装置と継合し、前記
磁極移動装置は記録媒体を装着する際に、装着手
段と連動して前記第１の磁極を動かすように構成
した実用新案登録請求の範囲第１項記載の光磁気
記録再生装置。 (3) 第１の磁極を、記録媒体の記録面に対して
垂直な軸を中心として回動可能とした実用新案登
録請求の範囲第１項記載の光磁気記録再生装置。[Claims for Utility Model Registration] (1) A mounting means for mounting a recording medium in a predetermined position, and an optical head for recording and reproducing information by irradiating a laser beam onto the surface of the recording medium while scanning the surface of the recording medium. , a magnetic circuit for applying a perpendicular magnetic field to the surface of the recording medium, the magnetic circuit having a magnetic flux generating means, and a magnetic circuit that faces the optical head with the recording medium in between and applies a perpendicular magnetic field to the scanning area of the optical head. a first magnetic pole having a length capable of applying a voltage; and a second magnetic pole located at a position opposite to the first magnetic pole with the recording medium in between, the first magnetic pole being opposed to the second magnetic pole. A magneto-optical recording and reproducing device that is movable. (2) A request for registration of a utility model in which the first magnetic pole is connected to a magnetic pole moving device, and the magnetic pole moving device is configured to move the first magnetic pole in conjunction with a mounting means when a recording medium is mounted. The magneto-optical recording and reproducing device according to item 1. (3) The magneto-optical recording and reproducing device according to claim 1, wherein the first magnetic pole is rotatable about an axis perpendicular to the recording surface of the recording medium.
JP1985177702U 1985-11-19 1985-11-19 Expired JPH0413773Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985177702U JPH0413773Y2 (en) 1985-11-19 1985-11-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985177702U JPH0413773Y2 (en) 1985-11-19 1985-11-19

Publications (2)

Publication Number Publication Date
JPS6285930U true JPS6285930U (en) 1987-06-01
JPH0413773Y2 JPH0413773Y2 (en) 1992-03-30

Family

ID=31119151

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985177702U Expired JPH0413773Y2 (en) 1985-11-19 1985-11-19

Country Status (1)

Country Link
JP (1) JPH0413773Y2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59119507A (en) * 1982-12-27 1984-07-10 Fujitsu Ltd Photo-magnetic recorder
JPS6050702A (en) * 1983-08-31 1985-03-20 Fujitsu Ltd Impressing device of bias magnetic field for photomagnetic disk
JPS60147949A (en) * 1984-01-12 1985-08-05 Canon Inc Photo-electro-magnetic disc device with auxiliary magnetic pole

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59119507A (en) * 1982-12-27 1984-07-10 Fujitsu Ltd Photo-magnetic recorder
JPS6050702A (en) * 1983-08-31 1985-03-20 Fujitsu Ltd Impressing device of bias magnetic field for photomagnetic disk
JPS60147949A (en) * 1984-01-12 1985-08-05 Canon Inc Photo-electro-magnetic disc device with auxiliary magnetic pole

Also Published As

Publication number Publication date
JPH0413773Y2 (en) 1992-03-30

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