JPS59109392A - Optical information recording medium - Google Patents

Optical information recording medium

Info

Publication number
JPS59109392A
JPS59109392A JP57219924A JP21992482A JPS59109392A JP S59109392 A JPS59109392 A JP S59109392A JP 57219924 A JP57219924 A JP 57219924A JP 21992482 A JP21992482 A JP 21992482A JP S59109392 A JPS59109392 A JP S59109392A
Authority
JP
Japan
Prior art keywords
information recording
recording medium
information
optical
optical information
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
Application number
JP57219924A
Other languages
Japanese (ja)
Inventor
Tadao Iwaki
忠雄 岩城
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP57219924A priority Critical patent/JPS59109392A/en
Publication of JPS59109392A publication Critical patent/JPS59109392A/en
Pending 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
    • G11B2007/24314—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
    • G11B7/242—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
    • G11B2007/24326—Halides (F, CI, Br...)
    • 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
    • G11B7/2531—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 glass
    • 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
    • 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
    • G11B7/257—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B7/2572—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of organic materials
    • G11B7/2575—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of organic materials resins
    • 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
    • G11B7/257—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B7/2578—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 layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
    • 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
    • G11B7/2585—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 aluminium
    • 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
    • G11B7/259—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 silver

Landscapes

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

Abstract

PURPOSE:The titled recording medium composed of Te and Sb as component elements by taking advantage of changes of refractive index, the aforesaid medium further including elements, S, P, and I, and capable of recording and erasing of informations with low-power laser beam and featuring a high sensitivity of reading. CONSTITUTION:In an optical information recording medium for recording and regeneration of informations by utilizing changes of refractive index of an information recording medium arranged on an information recording plane caused by optical heating by the laser beam of the information recording plane, wherein as component elements, Te is included preferably, at a ratio of 5-70mol%, Sb preferably 20-40mol% and at least one of elements P, S and I, S is included preferably S 2-15mol%, P 5-20mol% and/or I 10-30mol%.

Description

【発明の詳細な説明】 本発明は、レーザー光線を用いて光学的に情報記録面を
加熱することにより情報記録面上に配された情報記録媒
体の屈折率が変化すること全利用して情報を記録再生す
る光学的情報記録媒体に関する。Detailed Description of the Invention The present invention utilizes the fact that the refractive index of the information recording medium placed on the information recording surface changes by optically heating the information recording surface using a laser beam. The present invention relates to an optical information recording medium for recording and reproducing.

従来、レーザー光線を用いて光学的に情報の記録可能な
情報記録媒体としては、ＭｎＢ１．ＴｂＦｅ。Conventionally, as an information recording medium capable of optically recording information using a laser beam, MnB1. TbFe.

Ｇｄ０ｏ、ＧａＴｂＦｅなどの光磁気効果を利用して情
報を記録する媒体、あるいはＢｉ、Ｔｏなどの低融点金
属薄膜にレーザー光線を照射し、これｆｒ：溶融あるい
は蒸発させて記録ビットを形成し情報を記録する媒体、
またあるい（’ｉ　Ｔ　ｅ　ＯＸ　（０＜ｘ〈２）やＥ
ＪｂｚＢｅ３　　などの媒体は、これらの媒体にレーザ
ー光線を照射して加熱することにより、その加熱部の屈
折率が変化することにより情報ケ記録する媒体として知
られていた。A laser beam is irradiated onto a medium that records information using the magneto-optical effect such as Gd0o or GaTbFe, or a thin film of a low melting point metal such as Bi or To, which is then melted or evaporated to form recording bits and record information. medium,
Or again ('i T e OX (0<x<2) or E
Media such as JbzBe3 have been known as media that record information by irradiating these media with a laser beam and heating them, thereby changing the refractive index of the heated portion.

しかしながらＭｎＢ１．ＴｂＦｅ、Ｇｄ、Ｏｏ。However, MnB1. TbFe, Gd, Oo.

ＧａＴｂＦｅ　　などの光磁気効果を利用する媒体は、
情報の記録・消去が低パワーのレーザー光線で可能であ
るが、情報の読み出しの感ＩＷが小さく、０７Ｎｆｄ３
５〜４０　（Ｉ　Ｂ程度で１ちる。ま７（Ｂｉ。Media that utilizes the magneto-optical effect, such as GaTbFe, are
Although it is possible to record and erase information with a low-power laser beam, the sensitivity IW of reading information is small, and 07Nfd3
5-40 (I B level is 1 chiru. 7 (Bi.

Ｔｅなどの低融点金属は情報の読み出し感度げ大きいが
、情報の記録に大きなパワーのレーザー光線を要する上
、例えば浴融によって生じた記録ビットの形状制御がし
に〈＜、ノイズレベルが高くなり、また一度記録した情
報の消去はできないなどの欠点を有している。さらにＴ
ｅＯｘ　（０（ｘ（２）ヤＥ］ｂ２ｓｅ３カどの媒体ハ
、低パワーのレーザー光線で情報が記録でき、情報の読
み出し感度も高く、ノイズレベルも低いが、一度記録し
た情報の消去はできないという欠点を有している。Low melting point metals such as Te have a high sensitivity for reading information, but recording information requires a laser beam with high power, and the noise level becomes high due to the difficulty of controlling the shape of recording bits caused by bath melting, for example. Another disadvantage is that once recorded information cannot be erased. Further T
eOx (0(x(2)yaE)b2se3) All media can record information using low-power laser beams, have high sensitivity for reading information, and have low noise levels, but the disadvantage is that once recorded information cannot be erased. have.

本発明は、上記の各光学的情報記録媒体の有している全
ての欠点を除去し、低パワーのレーザー光線で情報の記
録および消去が可能で、情報の読み出し感度の高い光学
的情報記録媒体全提供することを目的としたものである
。The present invention eliminates all the drawbacks of the above-mentioned optical information recording media, enables information to be recorded and erased with a low-power laser beam, and has a high sensitivity for reading information. It is intended to provide.

本発明は、レーザー光線を用いて光学的に情報記録面を
加熱することにより情報記録面上に配さ′ＦＬり情報記
録媒体の屈折率が変化することを利用して情報を記録再
生する光学的情報記録媒体において、その構成元素をＴ
ｅ、Ｓθおよび少なくともＥｆ、Ｐ、工のいずれか１種
以上とし、上記媒体の構成元素の占める割合を適尭に選
ぶことによって、ＩＵｍＷという低パワーのレーザー光
線を用いて情報が記録でき、記録した情報の読み出し感
度が５５ｄＢ以上であυ、２０　ｍ　Ｗのレーザー光線
をすでに情報の記録さオしている記録ビットに照射する
ことにより情報の消去を可能ならしめることにより、上
記問題点を解決した。The present invention provides an optical system for recording and reproducing information by optically heating the information recording surface using a laser beam and utilizing the change in the refractive index of the information recording medium. In information recording media, its constituent elements are T
e, Sθ and at least one of Ef, P, and E, and by appropriately selecting the ratio of the constituent elements of the medium, information can be recorded using a laser beam with a low power of IUmW. The above-mentioned problems have been solved by making it possible to erase information by irradiating a recording bit with information reading sensitivity of 55 dB or more and a 20 mW laser beam onto a recording bit on which information has already been recorded.

以下、本発明による光学的情報記録媒体を実施例に従っ
て図面を用いて説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The optical information recording medium according to the present invention will be described below with reference to the drawings according to embodiments.

第１図は、本発明による光学的記録媒体を用いた光ディ
スクの構成図であり、１は、例えばｓｉＯなどの透明無
機物あるいはアクリルなどの樹脂からなる情報記録媒体
の保護膜、２は加熱によって屈折率が変化する本発明に
よる光学的情報記録媒体、６は例えばＡμあるいはＡｇ
などの反射膜、４は例えばガラスあるいはアクリルなど
の樹脂からなる基板である。情報を記録再生するための
レーザー光線は保護膜１を通９本発明による情報記録媒
体２に達する。このときレーザーパワーが５ｍＴｌ（以
下ならば情報記録媒体２は何も変化せず、レーザー光線
は情報記録媒体２を透過し反射膜６で反射され、再び情
報記録媒体２を透ａ　Ｌ、さらに保護膜１を抜は光デイ
スク外に出る。レーザーパワーが１０ｔｒＬＷ前後にな
ると、情報記録媒１水２はアモルファス→結晶相変態を
起こし屈折率が太きく変化するため、再び５ｍＷ以下の
レーザー光線を相変Ｂを起こした部分に照射すると、レ
ーザー光線は情報記録媒体に大きく吸収さヵ１、再びｆ
ｆｅディスク外へ戻るときの戻り光は減少し、情報が記
録される。さらに、上記の情報記録媒体２の相変態部に
２０　ｍ　Ｗの強いレーザー光線を照射すると、情報記
録媒体２は再び結晶□→アモルファス相変態を起こし、
屈折率は情報が記録される以前の大きさになシ、情報は
消去される。FIG. 1 is a block diagram of an optical disc using an optical recording medium according to the present invention, in which 1 is a protective film of the information recording medium made of a transparent inorganic material such as SiO or a resin such as acrylic, and 2 is a protective film that is refracted by heating. The optical information recording medium according to the invention having a variable rate, 6 is, for example, Aμ or Ag.
4 is a substrate made of glass or resin such as acrylic. A laser beam for recording and reproducing information passes through a protective film 1 and reaches an information recording medium 2 according to the present invention. At this time, if the laser power is 5 mTl or less, there will be no change in the information recording medium 2, and the laser beam will pass through the information recording medium 2, be reflected by the reflective film 6, pass through the information recording medium 2 again, and then pass through the protective film. 1 exits the optical disk.When the laser power reaches around 10trLW, the information recording medium 1 water 2 undergoes an amorphous->crystalline phase transformation and the refractive index changes sharply. When the laser beam is irradiated to the area where the f
The returning light when returning to the outside of the FE disk is reduced and information is recorded. Furthermore, when the phase transformation portion of the information recording medium 2 is irradiated with a strong laser beam of 20 mW, the information recording medium 2 undergoes crystal □→amorphous phase transformation again.
The refractive index returns to the level before the information was recorded, and the information is erased.

次に１本発明による光学的記録媒体を用いた光ディスク
の製作方法を説明する。Next, a method for manufacturing an optical disc using an optical recording medium according to the present invention will be explained.

本発明による光学的情報記録媒体を用いた光ディスクは
、ＷあるいはＭＯのボート型ヒータを用いた６源同時真
空蒸着法を用いて製作し、その模式図を第２図に示す。An optical disk using an optical information recording medium according to the present invention is manufactured using a six-source simultaneous vacuum deposition method using a W or MO boat-type heater, and a schematic diagram thereof is shown in FIG.

第２図において、５はガラスあるいはアクリル基鈑で、
図中、矢印で示されたようにゆっ〈！］と回転している
。６にンヤッター、７　＋　８．９ｕｗある１ｚＪｊ　
ｋＡ　ｏ　（１）　ホード型ヒータで、それぞれＴｅ、
ｓｂ、工あるいはＳあるいはＰの原料を入れるようにな
っている。製作する情報記録媒体の組成は、ボート型ヒ
ータに流す電流の３を調整することにより任意に選ぶこ
とができる。製作された情報記録ＩＳ体の組成は、螢ｙ
ｌｌＸ線分析装置により分析にて決定した。光ディスク
の製作は、全てＭＯあるいはＷのボート型ヒーターを用
いた抵抗加熱式蒸着法にて行なっ札発明者は、１ずアク
リル基鈑上に抵抗加熱法によりＡＱあるイｌ’ｊ：　Ａ
　ｇ　（Ｄ反射膜を１０００〜１５００〜 Ａ蒸着した後、上述のＷあるいはＭｏのボート型ヒータ
を用いた３源同時真空蒸着法で本発明による光学的情報
記音媒体５００〜８ｏ　ｏ　Ｘ蒸着し、さらに抵抗加熱
法でＳｉＯを５００〜１０００Ｘ蒸着し、本発明による
光学的情報記録媒体を用いた光ディスクの製作を行なっ
た。In Figure 2, 5 is a glass or acrylic base plate;
In the figure, as indicated by the arrow, Yu! ] and rotating. Nyatta on 6, 7 + 8.9uw 1zJj
kA o (1) Hoard type heater, Te,
It is designed to contain sb, engineering, S or P raw materials. The composition of the information recording medium to be manufactured can be arbitrarily selected by adjusting the current applied to the boat-type heater. The composition of the produced information recording IS body is
Determined by analysis using an X-ray analyzer. All optical discs are manufactured using a resistance heating vapor deposition method using MO or W boat-type heaters.
g (After depositing the D reflection film at 1000~1500~A, the optical information recording medium according to the present invention was deposited at 500~800X using the three-source simultaneous vacuum deposition method using the above-mentioned W or Mo boat type heater. Furthermore, SiO was vapor-deposited at 500 to 1000× using a resistance heating method, and an optical disk using the optical information recording medium according to the present invention was manufactured.

実施例１゜ アクリル基根上に抵抗加熱式蒸着法にてＡｇを１０００
Ａ蒸着し、その上に６源［４時真空蒸着法によりＴｅ、
８１）、Ｅ＋を種々の条件で同時熱着した。さＣ）に抵
抗加熱式蒸着法により、Ｓ１０？１０００Ａ蒸着した後
、１０ｍＷレーザーを用いて書き込み実、験、５ｎｔＶ
／レーザーを用いて読み取り実験、２０７ｎＷレーザー
を用いて消去実験全行なった、製作した情報記録媒体を
螢光Ｘ線装置ｋによシ構成元素の組成をＵヒく、上述の
情報の記録消去実験との対応を示したものが第６図であ
υ、○印で示した点は　情報の記録消去が可能なｆＪ１
成を示す点、Δ印で示した点は情報の記録は可能である
が、消去が不可能である組成を示す点、Ｘ印で示した点
なよ、情報の記録が全くできなかった組成を示す点を表
わす。なお、第３１図における座標軸上の単位はモル係
である。第３図から明らかに、上記の情報の記録消去実
験における情報の記録消去可能な情報記録媒体の組成範
囲は、Ｔｅが５０〜７０モルチ、モルが２０〜４０モル
饅、Ｓが２〜１５モル係であることがわかる。なおこの
組成範囲内の読み取り感度に、いすねもＯ／　１，１　
＝　５５ｄＢ以上あった。Example 1 1000% Ag was deposited on the acrylic base using resistance heating vapor deposition method.
A was deposited on top of the 6-source [Te, Te,
81), E+ was simultaneously thermally bonded under various conditions. After S10~1000A was deposited on C) by resistance heating deposition method, writing was performed using a 10mW laser, 5ntV.
A reading experiment using a laser and an erasing experiment using a 207nW laser were carried out.The produced information recording medium was exposed to a fluorescent X-ray device, and the composition of its constituent elements was examined. Figure 6 shows the correspondence with υ, and the points marked with ○ are fJ1 where information can be recorded and erased.
The points indicated by the Δ mark indicate compositions where information can be recorded but cannot be erased, and the points indicated by the X mark indicate compositions where information could not be recorded at all. Represents a point that indicates Note that the units on the coordinate axes in FIG. 31 are molar units. It is clear from FIG. 3 that the composition range of the information recording medium capable of recording and erasing information in the above information recording and erasing experiment was 50 to 70 mol of Te, 20 to 40 mol of S, and 2 to 15 mol of S. I can see that he is in charge. In addition, the reading sensitivity within this composition range is Isumo O/1,1.
= 55dB or more.

実施例２ 実施例１におけるＳの代わ９にＰを用い−Ｃ５同様の実
１験を試みたところ、第４図に示すような情報記録媒体
の構成元素の組成と情報の記録消去特性の対応が得らＪ
’Ｌｆｌ。第４図中の○印、Δ印。Example 2 When an experiment similar to -C5 was conducted using P instead of S in Example 1 and 9 was used, it was found that the correspondence between the composition of the constituent elements of the information recording medium and the information recording/erasing characteristics as shown in FIG. is obtained J
'Lfl. ○ and Δ marks in Figure 4.

Ｘ印の持つ意味は、第３図中の○印、ム印、Ｘ印の持つ
慧賭と同じであり、座標軸上の単位はモル係である。第
４図から明らかに本案１″Ｉ４！における情報の記録消
去可能な情報記録媒体の構成元素の組成範囲は、７０７
６５２〜７０モル％、Ｓｂが２０〜３７モル％、Ｐが５
〜２０モル受であることがわかる。−！だ記録消去可能
な情報記録媒体の読み取り感度はいずれもＣ／’Ｎ＝５
８ｄＢ以上あった。The meaning of the X mark is the same as the meaning of the O mark, Mu mark, and X mark in Figure 3, and the unit on the coordinate axis is the mole unit. It is clear from FIG. 4 that the composition range of the constituent elements of the information recording medium in which information can be recorded and erased in Proposal 1''I4! is 707.
652-70 mol%, Sb 20-37 mol%, P 5
It can be seen that the amount is ~20 moles. -! The reading sensitivity of all erasable information recording media is C/'N=5.
It was over 8dB.

実施例５゜ 実施例１におけるＳの代わりに■を用いて同様の実験を
試みたところ、第５図に示すような情報記録媒体の構成
元素の組成と情報の記録消去特性の対応が得られた。第
５図中の○印、ム印、Ｘ印の持つ意味は、第３図中の○
印、Δ印、Ｘ印の持つ意味と同じであり、座標軸上の単
位はモル係である。第５図から明らかに、本実験におけ
る情報の記録消去可能な情報記録媒体の構成元素の組成
範囲は、Ｔｅが５０〜６１モル％、１３ｂが２０〜６８
モル係、■が１０〜６０モル係であることがわかる。ま
た、記録消去可能な情報記録媒体の読み取り感度１はい
ずれもＯ／Ｎ＝５８ｄＢ以−ヒであった。Example 5 When a similar experiment was attempted using ■ instead of S in Example 1, a correspondence between the composition of the constituent elements of the information recording medium and the information recording/erasing characteristics as shown in FIG. 5 was obtained. Ta. The meanings of the ○, mu, and X marks in Figure 5 are as follows: ○ in Figure 3.
The meanings of the marks, Δ marks, and X marks are the same, and the units on the coordinate axes are molar units. It is clear from FIG. 5 that the composition range of the constituent elements of the information recording medium in which information can be recorded and erased in this experiment is 50 to 61 mol% Te and 20 to 68 mol% 13b.
It can be seen that the molar ratio, ■, is 10 to 60 molar ratio. Further, the reading sensitivity 1 of the recordable and erasable information recording medium was all O/N=58 dB or higher.

以上述べたように、本発明による光学的情報記録媒体は
、その構成元素としてＴｅを５０〜７０モル％、ｓｂを
２０〜４０モル％を含む他にｓ’１２〜１５モル％ちる
いはＰを５〜２０モルチモルいＩｄＩｉ１０〜３０モル
係含むようにすることによｐ、１０ｍＷし″−ザーで情
報の記録が可能で、２０　ｍ　Ｗレーザーで記録さ−Ｉ
″Ｉだ情報を消去することができ、しかも５　ｍ　Ｗレ
ーザーでの読み取り感度はＣ／Ｎ＝５５ｃｌＢ以上であ
るため、従来の光学式ディスク以上に汎用性の優れた高
密度光ディスクとしてデジタルオーテイオディスクある
いはビデオディスク等に多大の効果を有するものであAs described above, the optical information recording medium according to the present invention contains 50 to 70 mol% of Te, 20 to 40 mol% of sb, and 12 to 15 mol% of s' or P as its constituent elements. By containing 5 to 20 mol of IdI and 10 to 30 mol of IdI, information can be recorded with a 10 mW laser, and information can be recorded with a 20 mW laser.
Digital audio is a high-density optical disc that is more versatile than conventional optical discs because it can erase information that is difficult to read, and the reading sensitivity with a 5 mW laser is C/N = 55 clB or higher. It has a great effect on discs, video discs, etc.

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

第１図は、本発明による光学的情報記録媒体を用いた光
ディスクの構成図、第２図は、本発明による光学的情報
記音媒体を用いた光デイスク金製［′卜シたときに用い
た５＃同時真空蒸看装置の模式図、第３図は、本発明に
よる光学的情報記録媒体の構成元素としてＴｏ　、Ｓｂ
、Ｓを用いた時の構成元素の組成と情報の記録消去特性
の関係”七示した図であり、第４図は、本発明による光
学的情報記録媒体の構成元素としてＴｅ、ｓｂ、ｐを用
いた時の構成元素の組成と情報Ｑつ記録消去特性の関係
を示した図であり、第５図は本発明による光学的情報記
録媒体の構成元素としてＴｅ、　　Ｓｂ、　　■を用い
た時の構成元素の組成と情報の記録消去特性の関係を示
した図である。第１図において１は例えばＳｉＯなとの
透明無機物あるいはアクリルなどの樹脂からなる情報記
録媒体の保護膜、２は本発明による光学的情報記録媒体
、６は例えばＡｌあるいはＡｇなとの反射膜、４は例え
ばガラスあるいはアクリルなどの樹脂からなる基板であ
る。 第２図において５はガラスあるいはアクリル基板、６は
シャッター、７，８．９はＷあるいはＭＯのボート型ヒ
ータである。第３図、第４図、第５図において○印で示
した点は情報の記録消去が可能な組成を示す点、Δ印で
示した点は情報の記録は可能であるが消去が不可能であ
る組成を示す点、Ｘ印で示した点は情報の記録が全くで
きなかった組成を示す点であり、図中座標軸上の単位は
モル係である。 以上 第１図 第２図 第３図 ｔｌｌ、％ 第４図 第５図 へ■FIG. 1 is a block diagram of an optical disc using the optical information recording medium according to the present invention, and FIG. FIG. 3 is a schematic diagram of the 5# simultaneous vacuum steaming device, which contains To, Sb as constituent elements of the optical information recording medium according to the present invention.
, S is a diagram showing the relationship between composition of constituent elements and information recording/erasing characteristics when using Te, sb, and S as constituent elements of the optical information recording medium according to the present invention. This is a diagram showing the relationship between the composition of the constituent elements and the information recording/erasing characteristics when used, and Fig. 5 shows the relationship between the composition of the constituent elements and the recording/erasing characteristics of the optical information recording medium according to the present invention. 1 is a diagram showing the relationship between the composition of constituent elements and information recording/erasing characteristics. In FIG. 1, 1 is a protective film of an information recording medium made of a transparent inorganic material such as SiO or a resin such as acrylic, and 2 is a protective film of the present invention. 6 is a reflective film made of Al or Ag, for example, and 4 is a substrate made of resin such as glass or acrylic. In FIG. 2, 5 is a glass or acrylic substrate, 6 is a shutter, and 7 , 8.9 is a W or MO boat type heater. In Figs. 3, 4, and 5, the points marked with ○ indicate the composition where information can be recorded and erased, and the points marked with Δ indicate the composition. The points marked with a mark indicate compositions where information can be recorded but cannot be erased, and the points marked with an X indicate compositions where information cannot be recorded at all.The units on the coordinate axes in the figure is the mole ratio. Above is the figure 1, figure 2, figure 3, tll, %, figure 4, figure 5 ■

Claims (5)

【特許請求の範囲】[Claims] （１）　　レーザー光線を用いて光学的に情報記録面を
加熱することにより情報記録面上に配された情報記録媒
体の屈折率が変化することを利用して情報を記録再生す
る光学的情報記録媒体において、その構成元素がＴｅ、
ｓｂよりなり、かつｓ、ｐ。 ■のうち少なくとも１種以上の元素を含む光学的情報記
録媒体。(1) An optical information recording medium that records and reproduces information by utilizing the change in the refractive index of the information recording medium placed on the information recording surface by optically heating the information recording surface using a laser beam. , the constituent elements are Te,
sb, and s, p. (2) An optical information recording medium containing at least one element selected from among the above. （２）構成元素のうちＴｅが５０〜７０モル係。 ｓｂが２０〜４０モルチである特許請求の範囲第１項記
載の光学的情報記録媒体。(2) Among the constituent elements, Te has a mole ratio of 50 to 70. The optical information recording medium according to claim 1, wherein sb is 20 to 40 molar. （３）構成元素のうちＳが２〜１５モル饅である特許請
求の範囲第２項記載の光学的情報記録媒体。(3) The optical information recording medium according to claim 2, wherein S among the constituent elements is 2 to 15 moles. （４）構成元素のうちＰが５〜２０モルチである特許請
求の範囲第２項記載の光学的情報記録媒体。(4) The optical information recording medium according to claim 2, wherein P among the constituent elements is 5 to 20 mol. （５）　　＜ａ成元素のうち工が１０〜３０モル係であ
る特許請求の範囲第２項記載の光学的情報記録媒体。(5) The optical information recording medium according to claim 2, wherein the mole of the <a element is 10 to 30 molar.
JP57219924A 1982-12-15 1982-12-15 Optical information recording medium Pending JPS59109392A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57219924A JPS59109392A (en) 1982-12-15 1982-12-15 Optical information recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57219924A JPS59109392A (en) 1982-12-15 1982-12-15 Optical information recording medium

Publications (1)

Publication Number Publication Date
JPS59109392A true JPS59109392A (en) 1984-06-25

Family

ID=16743149

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57219924A Pending JPS59109392A (en) 1982-12-15 1982-12-15 Optical information recording medium

Country Status (1)

Country Link
JP (1) JPS59109392A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6070536A (en) * 1983-09-28 1985-04-22 Nippon Columbia Co Ltd Optical information recording medium
JPS6144690A (en) * 1984-08-10 1986-03-04 Res Dev Corp Of Japan Photo-recording material
JPH01245440A (en) * 1988-03-28 1989-09-29 Hitachi Ltd Thin film for information recording

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6070536A (en) * 1983-09-28 1985-04-22 Nippon Columbia Co Ltd Optical information recording medium
JPS6144690A (en) * 1984-08-10 1986-03-04 Res Dev Corp Of Japan Photo-recording material
JPH0514629B2 (en) * 1984-08-10 1993-02-25 Shingijutsu Jigyodan
JPH01245440A (en) * 1988-03-28 1989-09-29 Hitachi Ltd Thin film for information recording

Similar Documents

Publication Publication Date Title
JP4145446B2 (en) How to use optical recording media
JPH029955B2 (en)
JPH07169094A (en) Optical recording medium
WO1992014245A1 (en) Method for reproducing signal in optically recording medium
JP2000229479A (en) Optical-recording medium
JPH03224790A (en) Data recording medium
JPH05286249A (en) Data recording medium
JPS60155495A (en) Information-recording medium
JPH09286175A (en) Optical recording medium
JPS59109392A (en) Optical information recording medium
JPH0885261A (en) Optical information recording medium and manufacture thereof
JP3163302B2 (en) Optical information recording medium and information recording / reproducing method
JPS6288152A (en) Optical information recording member
JP2629746B2 (en) Optical recording medium
JPH0526668B2 (en)
JPH04226784A (en) Optical information recording medium and information recording propuction method
US5196294A (en) Erasable optical recording materials and methods based on tellurium alloys
US5862122A (en) Phase change optical disk and a method for recording and playbacking optical information on or from an optical disk
JPH03224791A (en) Data recording medium
JP2001067719A (en) Optical information recording medium and method for recording/reproducing information
JPH0530193B2 (en)
JPS612592A (en) Optical information-recording member
JP2798247B2 (en) Optical recording medium
JPH02151481A (en) Membrane for recording data and method for recording and reproducing data
JPH0530194B2 (en)