JPS6316624U - - Google Patents

Info

Publication number
JPS6316624U
JPS6316624U JP10996286U JP10996286U JPS6316624U JP S6316624 U JPS6316624 U JP S6316624U JP 10996286 U JP10996286 U JP 10996286U JP 10996286 U JP10996286 U JP 10996286U JP S6316624 U JPS6316624 U JP S6316624U
Authority
JP
Japan
Prior art keywords
magneto
optical recording
recording layer
optical
recording medium
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
JP10996286U
Other languages
Japanese (ja)
Other versions
JP2527649Y2 (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 JP1986109962U priority Critical patent/JP2527649Y2/en
Priority to US07/070,346 priority patent/US4807204A/en
Publication of JPS6316624U publication Critical patent/JPS6316624U/ja
Application granted granted Critical
Publication of JP2527649Y2 publication Critical patent/JP2527649Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

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

第１図は本考案の一実施例を含む光磁気記録装
置の構成を説明する図である。第２図は、第１図
の光磁気デイスクにおいて第１光磁気記録層を構
成するＧｄ２Ｂｉ１Ｆｅ５Ｏ１２の吸収特性を示
す図である。第３図は、通常の光磁気デイスクに
おいて光磁気記録層の材料として用いられるＴｂ
Ｆｅの吸収特性を示す図である。 １０：光磁気デイスク（光磁気記録媒体）、１
６：第１光磁気記録層、２０：第２光磁気記録層
、２６：光学ヘツド。 FIG. 1 is a diagram illustrating the configuration of a magneto-optical recording device including an embodiment of the present invention. FIG. 2 is a diagram showing the absorption characteristics of Gd 2 Bi 1 Fe 5 O 12 constituting the first magneto-optical recording layer in the magneto-optical disk of FIG. Figure 3 shows Tb, which is used as a material for the magneto-optical recording layer in a normal magneto-optical disk.
FIG. 3 is a diagram showing absorption characteristics of Fe. 10: Magneto-optical disk (magneto-optical recording medium), 1
6: first magneto-optical recording layer, 20: second magneto-optical recording layer, 26: optical head.

Claims (1)

【実用新案登録請求の範囲】 (1) 積層された複数の光磁気記録層を備え、光
学ヘツド側に位置する第１光磁気記録層を除く他
の光磁気記録層には該第１光磁気記録層を通して
該光学ヘツドからの光が集光される形式の光磁気
記録媒体であつて、 前記複数の光磁気記録層の内の少なくとも前記
第１光磁気記録層が、透明磁性体によつて構成さ
れていることを特徴とする光磁気記録媒体。 (2) 前記透明磁性体は、Ｇｄ２Ｂｉ１Ｆｅ５Ｏ
１２，Ｇｄ３Ｆｅ５Ｏ１２，ＹＩＧ（Ｙ３Ｆｅ５
Ｏ１２）などの磁性ガーネツト、ＦｅＢＯ３など
のオルソフエライトのいずれかから成るものであ
る実用新案登録請求の範囲第１項に記載の光磁気
記録媒体。[Claims for Utility Model Registration] (1) Comprising a plurality of laminated magneto-optical recording layers, other magneto-optical recording layers other than the first magneto-optical recording layer located on the optical head side include the first magneto-optical recording layer. A magneto-optical recording medium in which light from the optical head is focused through a recording layer, wherein at least the first magneto-optical recording layer of the plurality of magneto-optical recording layers is made of a transparent magnetic material. A magneto-optical recording medium characterized by comprising: (2) The transparent magnetic material is Gd 2 Bi 1 Fe 5 O
12 , Gd3Fe5O12 , YIG ( Y3Fe5
The magneto-optical recording medium according to claim 1, which is made of either a magnetic garnet such as O 12 ) or an orthoferrite such as FeBO 3 .
JP1986109962U 1986-07-07 1986-07-17 Magneto-optical recording medium Expired - Lifetime JP2527649Y2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1986109962U JP2527649Y2 (en) 1986-07-17 1986-07-17 Magneto-optical recording medium
US07/070,346 US4807204A (en) 1986-07-07 1987-07-06 Magneto-optical recording medium having pairs of mutually corresponding recording segments, and apparatus for recording information on the medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986109962U JP2527649Y2 (en) 1986-07-17 1986-07-17 Magneto-optical recording medium

Publications (2)

Publication Number Publication Date
JPS6316624U true JPS6316624U (en) 1988-02-03
JP2527649Y2 JP2527649Y2 (en) 1997-03-05

Family

ID=30988551

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986109962U Expired - Lifetime JP2527649Y2 (en) 1986-07-07 1986-07-17 Magneto-optical recording medium

Country Status (1)

Country Link
JP (1) JP2527649Y2 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5841450A (en) * 1981-09-03 1983-03-10 Nec Corp Vertical magnetic recording medium
JPS59175048A (en) * 1983-03-22 1984-10-03 Seiko Instr & Electronics Ltd Photomagnetic disk
JPS60637A (en) * 1983-06-16 1985-01-05 Hitachi Ltd Optomagnetic recording medium
JPS6029996A (en) * 1983-07-29 1985-02-15 Hitachi Ltd Photomagnetic recording carrier
JPS6122452A (en) * 1984-07-09 1986-01-31 Kokusai Denshin Denwa Co Ltd <Kdd> Photomagnetic recording medium
JPS61107552A (en) * 1984-10-30 1986-05-26 Brother Ind Ltd Optical recording medium
JPS61107553A (en) * 1984-10-30 1986-05-26 Brother Ind Ltd Optomagnetic reproducing device
JPS6242348A (en) * 1985-08-19 1987-02-24 Nippon Telegr & Teleph Corp <Ntt> Photomagnetic recording medium

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5841450A (en) * 1981-09-03 1983-03-10 Nec Corp Vertical magnetic recording medium
JPS59175048A (en) * 1983-03-22 1984-10-03 Seiko Instr & Electronics Ltd Photomagnetic disk
JPS60637A (en) * 1983-06-16 1985-01-05 Hitachi Ltd Optomagnetic recording medium
JPS6029996A (en) * 1983-07-29 1985-02-15 Hitachi Ltd Photomagnetic recording carrier
JPS6122452A (en) * 1984-07-09 1986-01-31 Kokusai Denshin Denwa Co Ltd <Kdd> Photomagnetic recording medium
JPS61107552A (en) * 1984-10-30 1986-05-26 Brother Ind Ltd Optical recording medium
JPS61107553A (en) * 1984-10-30 1986-05-26 Brother Ind Ltd Optomagnetic reproducing device
JPS6242348A (en) * 1985-08-19 1987-02-24 Nippon Telegr & Teleph Corp <Ntt> Photomagnetic recording medium

Also Published As

Publication number Publication date
JP2527649Y2 (en) 1997-03-05

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