JPH02164585A - 光情報記録媒体 - Google Patents

光情報記録媒体

Info

Publication number
JPH02164585A
JPH02164585A JP63319918A JP31991888A JPH02164585A JP H02164585 A JPH02164585 A JP H02164585A JP 63319918 A JP63319918 A JP 63319918A JP 31991888 A JP31991888 A JP 31991888A JP H02164585 A JPH02164585 A JP H02164585A
Authority
JP
Japan
Prior art keywords
film
recording medium
optical data
data recording
substrate
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
JP63319918A
Other languages
English (en)
Other versions
JP2935707B2 (ja
Inventor
Masaaki Kikuchi
菊地　正明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Columbia Co Ltd
Original Assignee
Nippon Columbia Co Ltd
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 by Nippon Columbia Co Ltd filed Critical Nippon Columbia Co Ltd
Priority to JP63319918A priority Critical patent/JP2935707B2/ja
Publication of JPH02164585A publication Critical patent/JPH02164585A/ja
Application granted granted Critical
Publication of JP2935707B2 publication Critical patent/JP2935707B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24312—Metals or metalloids group 14 elements (e.g. Si, Ge, Sn)
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24314—Metals or metalloids group 15 elements (e.g. Sb, Bi)
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24316—Metals or metalloids group 16 elements (i.e. chalcogenides, Se, Te)
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B2007/24318—Non-metallic elements
    • G11B2007/24324—Sulfur
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • G11B7/2533—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins
    • G11B7/2534—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins polycarbonates [PC]
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/258—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers
    • G11B7/2595—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers based on gold

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 〔産業上の利用分野〕 木溌明はレーザ光線を用いて情報が記録・再生される光
情報記録媒体に関するものである。
〔従来の技術〕
コンパクトディスク（以下ＣＤ）が広く普及してきた今
、現行ＣＤプレーヤで再生可能な追加型光ディスクは例
えば特開昭６２−１１９７４８などで提案されている。
この様な追記型光ディスクは、現行ＣＤプレーヤで再生
可能であるから、ＣＤの小規模生産が低コストで行える
という利点がある。
Ｃ発明が解決しようとする課題〕 しかし、この様な、従来の追記型光ディスクは、先ず記
録膜を成膜後、情報を記録し、この後光ディスクをもう
１度真空槽内に入れ、Ａ１等の反射的としてなされたも
のである。
〔課題を解決するための手段〕
本発明による光情報記録媒体は、Ｓ、　Ｇｅ、　　ｓｂ
、Ｔｅの原子数比がＳ　（４３〜４７）　、　Ｇｅ（１
５〜８）、Ｓｂ　（２５〜３６）、Ｔｅ　（１７〜９）
の領域内にある記録膜を有することを特徴とするもので
ある。
〔作用〕
以上の様な構成を有する光ディスクは熱処理をすると反
射率が下がることから追記型光ディスクって記録後に反
射膜を成膜する必要がない。
〔実施例〕
ガラス基板上にＧｅＴｅと５ｂ２Ｓ、を１：２の割合で
混合した粉末を抵抗加熱蒸着法により記録膜として８０
ｎｍ成膜し、続いてＳｉＯ□を誘電膜として５０ｎｍを
成膜し、さらに反射膜としてＡであって、しかもＣＤプ
レーヤで再生可能である。
【図面の簡単な説明】
第１図は本発明による光ディスクの一実施例を示す断面
図、第２図は第１図のディスクの反射率の組成依存性で
ある。 ｌ・・・基板 ２・・・記録膜 ３・・・誘電膜 ４・・・反射膜 うものであり、追記型光ディスクとして充分使用しうる
。 なお、誘電膜としてはＡＩＮでもよく、又、反射膜とし
てはＡｕでもよい。又、基板としてはポリカーボネート
も用いることが出来る。 〔発明の効果〕

Claims (2)

    【特許請求の範囲】
  1. （１）Ｓ、Ｇｅ、Ｓｂ、Ｔｅの原子数比がＳ（４３〜４
    ７）、Ｇｅ（１５〜８）、Ｓｂ（２５〜３６）、Ｔｅ（
    １７〜９）の領域内にある記録膜を有することを特徴と
    する光情報記録媒体。
  2. （２）上記の記録膜を第１層として基板上に成膜し、そ
    の上に第２層として誘電膜を、第３層として反射膜を成
    膜した構造を有することを特徴とする光情報記録媒体。
JP63319918A 1988-12-19 1988-12-19 光情報記録媒体 Expired - Lifetime JP2935707B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63319918A JP2935707B2 (ja) 1988-12-19 1988-12-19 光情報記録媒体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63319918A JP2935707B2 (ja) 1988-12-19 1988-12-19 光情報記録媒体

Publications (2)

Publication Number Publication Date
JPH02164585A true JPH02164585A (ja) 1990-06-25
JP2935707B2 JP2935707B2 (ja) 1999-08-16

Family

ID=18115687

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63319918A Expired - Lifetime JP2935707B2 (ja) 1988-12-19 1988-12-19 光情報記録媒体

Country Status (1)

Country Link
JP (1) JP2935707B2 (ja)

Also Published As

Publication number Publication date
JP2935707B2 (ja) 1999-08-16

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