JPS583143A - information recording medium - Google Patents
information recording mediumInfo
- Publication number
- JPS583143A JPS583143A JP56100522A JP10052281A JPS583143A JP S583143 A JPS583143 A JP S583143A JP 56100522 A JP56100522 A JP 56100522A JP 10052281 A JP10052281 A JP 10052281A JP S583143 A JPS583143 A JP S583143A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- recording medium
- information recording
- recording layer
- transparent
- 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
Links
- 239000010410 layer Substances 0.000 claims description 60
- 239000000919 ceramic Substances 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 6
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 150000004767 nitrides Chemical class 0.000 claims description 5
- -1 Fatty acid salts Chemical class 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 229930195733 hydrocarbon Natural products 0.000 claims description 4
- 150000002430 hydrocarbons Chemical class 0.000 claims description 4
- 239000012044 organic layer Substances 0.000 claims description 4
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 229910052745 lead Inorganic materials 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 229910052797 bismuth Inorganic materials 0.000 claims description 2
- 229910052738 indium Inorganic materials 0.000 claims description 2
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 235000014593 oils and fats Nutrition 0.000 claims description 2
- 239000011368 organic material Substances 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 229910052787 antimony Inorganic materials 0.000 claims 1
- 229910052796 boron Inorganic materials 0.000 claims 1
- 229910052804 chromium Inorganic materials 0.000 claims 1
- 229910052752 metalloid Inorganic materials 0.000 claims 1
- 150000002738 metalloids Chemical class 0.000 claims 1
- 229910052714 tellurium Inorganic materials 0.000 claims 1
- 229910052718 tin Inorganic materials 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 229910052720 vanadium Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 9
- 230000035945 sensitivity Effects 0.000 description 9
- 239000011521 glass Substances 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 5
- 239000012188 paraffin wax Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000007738 vacuum evaporation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000005387 chalcogenide glass Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
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
- G11B7/252—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
Landscapes
- 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。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は情報記録媒体に関するものでありより詳しく述
べるならば光ビームを媒体に収束し、該媒体に穴を開け
て記録し穴に読み出し月光ビームを照射し穴の有無を反
射光又は透過光を検出することによって判別し情報を読
み出す情報記録媒体に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an information recording medium, and more specifically, a light beam is focused on the medium, a hole is punched in the medium for recording, the hole is read out, and a moonlight beam is irradiated to determine whether or not there is a hole. The present invention relates to an information recording medium in which information is read out by determining information by detecting reflected light or transmitted light.
情報記録媒体に要求される条件としては感度。Sensitivity is a requirement for information recording media.
Ｓｉｇｎａｌ／Ｎｏ１ｓｅ（Ｓ／Ｎ）、及び安定性（長
期保存性）の三つが考えられ、これらの三つの条件のう
ちいずれか１つ欠けていてもその媒体の品質は低下する
この条件の中で安定性を保障するために１、耐食性材
料を記録材に使用する。２．サンドイッチ構造によって
記録層を機械的に保護する。３、保護膜を記録層上に形
成する、等が考えられる。記録材として耐食性材料を用
いる場合その材料としては単体金属及び合金に分けられ
る。第１表にそれらの材料と感度、Ｓ／Ｎ安定性との関
連における得失を示す。Three conditions are considered: signal/noise (S/N), and stability (long-term storage), and if any one of these three conditions is missing, the quality of the medium will deteriorate. Among these conditions, To ensure stability, 1. Corrosion-resistant material is used for the recording material. 2. The sandwich structure mechanically protects the recording layer. 3. Forming a protective film on the recording layer may be considered. When a corrosion-resistant material is used as a recording material, the material can be divided into single metals and alloys. Table 1 shows the advantages and disadvantages of these materials in relation to sensitivity and S/N stability.
第１表
また、上記材料に属さないカルコゲナイドガラスは安定
性の面から耐湿性には優れているが非晶質−結晶質転移
が起シやすく熱的に弱く光学的性質が変化しやすく、又
毒性が強い。また記録材を両側からはさみこむサンドイ
ッチ構造について述べると、このサンドイッチ構造は記
録層の機械的な保護と安定性を得るために開発されたも
のであり、基板にガラスを使用すると安定性は改良され
るが機械的強度に弱く、コストが高いという欠点があっ
たっそこで基板にＰＭＭＡ（ポリメチルメタクリレート
）を使用すると機械的強度は強くなりコストも低下する
が他方基板側から水分が侵入し記録層の化学的安定性が
悪くなる。前述の安定性を増すための条件の一つである
保護膜を形成する方法は主に機械的強度を得るため膜厚
を厚くしたものであシ耐食性及び記録特性を無視したも
のが多く感度が低下した。ｉＤ、Ｓ／Ｎが劣化したシし
た。以上述べたように情、報記録媒体に要求される感度
Ｓ／Ｎ及び安定性を全て保障することは実現されていな
かった。Table 1 also shows that chalcogenide glasses, which do not belong to the above materials, have excellent moisture resistance from the standpoint of stability, but are prone to amorphous-crystalline transitions, are thermally weak, and easily change optical properties. Highly toxic. Regarding the sandwich structure in which the recording material is sandwiched between both sides, this sandwich structure was developed to provide mechanical protection and stability to the recording layer, and stability is improved by using glass as the substrate. However, using PMMA (polymethyl methacrylate) for the substrate increases the mechanical strength and reduces the cost, but on the other hand, water enters from the substrate side and the chemistry of the recording layer deteriorates. stability deteriorates. The method of forming a protective film, which is one of the conditions for increasing stability mentioned above, mainly involves increasing the film thickness to obtain mechanical strength, and many methods ignore corrosion resistance and recording characteristics, resulting in poor sensitivity. decreased. The iD and S/N have deteriorated. As described above, it has not been possible to guarantee all the sensitivity S/N and stability required for information recording media.
本発明の目的は感度、Ｓ／Ｎを劣化させずに安定性を保
障する光による情報記録媒体を提供することにある。An object of the present invention is to provide an optical information recording medium that guarantees stability without deteriorating sensitivity or S/N.
本発明の目的は基板上に金属又は半金属、有機色素等か
らなる記録層を配設し、該記録層にエネルギービームを
集束し、その熱エネルギーによって該記録層に穴を形成
し、その穴に光ビームを照射しその反射光又は透過光を
検出することによって情報を読み出す光による情報記録
媒体において、基板上に第１層として透明性Ｍ機物層を
配設し、更に第２層として透明性セラミック層を配設し
、その上に第３層として記録層を、配設し、更にその上
に第４層としてセラミック層を配設し、更にその上に第
５層として透明性有機物層を配設することを特徴とする
情報記録媒体によって達成される。The object of the present invention is to provide a recording layer made of a metal or semimetal, an organic dye, etc. on a substrate, focus an energy beam on the recording layer, use the thermal energy to form a hole in the recording layer, and to form a hole in the recording layer. In an optical information recording medium in which information is read by irradiating a light beam and detecting the reflected light or transmitted light, a transparent M material layer is provided as a first layer on a substrate, and a transparent M material layer is further provided as a second layer on a substrate. A transparent ceramic layer is provided, a recording layer is provided as a third layer on top of the recording layer, a ceramic layer is provided as a fourth layer on top of the recording layer, and a transparent organic material is further provided as a fifth layer on top of the ceramic layer. This is achieved by an information recording medium characterized by arranging layers.
すなわち本発明は記録層を保護するために記録層を透明
性セラミック層で両側から挾むように、すなわちサンド
イッチ構造にして、そのセラミック層の上下に透明性有
機物層を形成したものを基板上に形成せしめた構造を有
する。光による情報記録媒体である。That is, in the present invention, in order to protect the recording layer, the recording layer is sandwiched between transparent ceramic layers on both sides, that is, in a sandwich structure, and transparent organic layers are formed above and below the ceramic layer on the substrate. It has a unique structure. It is an information recording medium using light.
本発明によれば記録層をサンドインチ構造にせしめた透
明性セラミック層はほとんどのものが透気性透水性が小
さく記録層の光学的特性を変化させず、更に基板中に含
まれるアルカリイオン、その他の不純物等の不純物Ｃ明
゛出を抑制し安定性（長期保存）を向上させ、更に前述
の透明性有機物層は低熱伝導度及び低融点を有し且つ耐
湿性がよく感度の向上安定性の向上が図れた。According to the present invention, most of the transparent ceramic layers in which the recording layer has a sand-inch structure have low air permeability and water permeability, and do not change the optical properties of the recording layer. In addition, the above-mentioned transparent organic layer has low thermal conductivity, low melting point, and good moisture resistance, and improves sensitivity and stability. Improvements were made.
本発明において前記透明性セラミック層として酸化物又
は窒化物又はフッ化物を使用するものであって更に該酸
化物としてはＳｔ 、Ｂ、Ｂｅ 、Ａｚ、ＴｉｔＶ、Ｃ
ｒ、Ｍｎ、Ｃｏ、Ｎｉ、Ｚｎ、Ｇｅ、Ｃｄ、Ｉｎ、５ｎ
ｌＳｂｌＴｅ 、Ｗ、 Ｐｂ 、 Ｂｉからなる群から
選ばれた少なくとも一元素の酸化物、該フッ化物として
はＣｏ、ＭＰ。In the present invention, an oxide, a nitride, or a fluoride is used as the transparent ceramic layer, and the oxide further includes St, B, Be, Az, TitV, C
r, Mn, Co, Ni, Zn, Ge, Cd, In, 5n
An oxide of at least one element selected from the group consisting of lSblTe, W, Pb, and Bi, and the fluoride includes Co and MP.
のうちから選ばれた少なくとも一元素のフッ化物窒化物
としてはＳｉ、Ｑａのうちから選ばれた一元素 −の窒
化物からなるのが好ましい。The fluoride nitride of at least one element selected from among is preferably a nitride of one element selected from Si and Qa.
一般に金属材料は表面に不働態化材料を被覆することに
よって耐食性を増大させておシ、透明性セラミック層は
不働態化層として本発明に有効である。また第２、第４
層としての該セラミック層の厚みは数１０ないし数１０
ＯＡ、好ましくは数Ａ〜１００Ａである。Generally, the corrosion resistance of metallic materials is increased by coating the surface with a passivating material, and a transparent ceramic layer is effective as a passivating layer in the present invention. Also the second and fourth
The thickness of the ceramic layer as a layer is several tens to several tens
OA, preferably several A to 100A.
また本発明に使用する透明性有機物としては、炭素数が
１５以上のパラフィン系炭化水素、炭素数が１５以上で
あってＺｎ 、 Ａｔ、 Ｂａ 、 Ｍｆ 、 Ｐｂ
、 Ｔｔ。In addition, the transparent organic substances used in the present invention include paraffinic hydrocarbons having 15 or more carbon atoms, Zn, At, Ba, Mf, Pb having 15 or more carbon atoms.
, Tt.
のからなる群から選ばれた少々くとも一つの金属から得
られる脂肪酸塩、ワックス系統、油脂、ポリオレフィン
、及びポリオレフィンの誘導体からなシ月つ融点が４０
″Ｃ以上のものが好ましい。上記有様物は低熱伝導度、
低融点を有し且つ耐湿性が良いことが特徴である。尚上
記有機物を記録層面にコーティングする方法としてパラ
フィン系炭化水緊、脂肪酸塩及びワックス系統は真空蒸
着によって、ポリオレフィンはプラズマ重合法によって
、そして油脂はスピンコーティング又は真空蒸着法によ
って行なわれるのが好ましい。前述した・臂ラフイン系
炭化水素の記録層面へのコーティング方法である真空蒸
着法に使用するポートは昇華材料用デートが好ましい。fatty acid salts obtained from at least one metal selected from the group consisting of
"C or higher is preferable. The above-mentioned material has low thermal conductivity,
It is characterized by a low melting point and good moisture resistance. It is preferable to coat the surface of the recording layer with the above-mentioned organic substances by vacuum evaporation for paraffin-based hydrocarbons, fatty acid salts and waxes, by plasma polymerization for polyolefins, and by spin coating or vacuum evaporation for oils and fats. The port used in the vacuum evaporation method, which is a method of coating the surface of the recording layer with the rough-in type hydrocarbon described above, is preferably a date for sublimation material.
また有機物層を平担にするためには熱処理を施すのがよ
い。有機物は融点以上に加熱されると液状になシ自然に
レベリングを起し平担になる８、融点温度よシ５ないし
１０℃高い温度に保持し冷気を浴びせることによって急
冷すると該有機物層はガラス化する。Ｓ／Ｎ を向上さ
せるためにも熱処理が有効であり特に基板側において著
しい。Further, in order to flatten the organic layer, heat treatment is preferably performed. When an organic substance is heated above its melting point, it becomes liquid and naturally levels and becomes flat8.If the organic substance is held at a temperature 5 to 10 degrees Celsius higher than the melting point and quenched by exposing it to cold air, the organic substance layer becomes glass. become Heat treatment is also effective for improving the S/N ratio, especially on the substrate side.
以下本発明の一実施例を図面に基づいて説明する。An embodiment of the present invention will be described below based on the drawings.
第１図は本発明に係る情報記録媒体の一実施例を示す概
略断面図である、２アクリル基板１上に１（１００Ａの
厚みに第１層としてのパラフィン２を、真空蒸着せしめ
ｌＯＯｏＣの温度でアニール処理後冷気を浴せ平担化さ
せ、該パラフィン２の上に２５Ａの厚みに第２層として
のＳｉ０層３を真空蒸着させ、更に８１０層３上に第３
層としてのＴｅ４を３００Ａの厚みに蒸着し、更に同様
に第４、第５層とじてのＳｉ０層３′ハラフイン２′を
それぞれ１５１．２００大の厚みに蒸着形成した。第２
図、第３図はそれぞれ本実施例とＴｅ／ガラスの温度の
比較そして本実施例とＴｅ／アクリルの安定性の比較ら
回転数を１８０Ｏｒｐｍとし、書込み周波数を更１：
５■ｈとしＪτＬ下の条件でリードライト（ＲｅａｄＷ
ｒｉｔｅ）した時の０／Ｎである。すなわち書込みレー
ザ１ｄＡｒレーザ４８８０’Ａを用い読出しレーデはＨ
ｅ−Ｎｅレーザ６３２８Ａを用いた。FIG. 1 is a schematic cross-sectional view showing an embodiment of an information recording medium according to the present invention.Paraffin 2 is vacuum-deposited as a first layer on an acrylic substrate 1 to a thickness of 100A at a temperature of lOOoC. After annealing, a cold air is applied to flatten the paraffin 2, and a Si0 layer 3 as a second layer is vacuum-deposited to a thickness of 25A on the paraffin 2, and a third Si0 layer 3 is further deposited on the 810 layer 3.
A Te4 layer was deposited to a thickness of 300 Å, and a fourth and fifth Si0 layer 3' halafine 2' was similarly deposited to a thickness of 151.200 Å. Second
Figure 3 shows a comparison of the temperature of this example and Te/glass, and a comparison of the stability of this example and Te/acrylic, respectively.The rotation speed was set to 180 Orpm, the writing frequency was further set to 1:5 h, and JτL was lower. Read/Write under the conditions of
rite) is 0/N. That is, the writing laser is 1dAr laser 4880'A and the reading radar is H.
An e-Ne laser 6328A was used.
５が本発明の構成媒体で、６がＴｅ３００Ａ／ガラスの
場合である。６の構成に比し、５の構成では同じＣ／Ｎ
を達成す石のに約％のノ４ワーであった
本発明の耐久性を調べたのが、第３図である。5 is the constituent medium of the present invention, and 6 is the case of Te300A/glass. Compared to configuration 6, configuration 5 has the same C/N.
Figure 3 shows the durability of the present invention, which was approximately 4% lower than that of stone.
５は第１図と同様の構成であり、８はＴｅ３００ Ａ／
アクリルである。又９はアクリルである。５と８の媒体
を７０℃ＲＨ９０ｑ６の条件のもとて約１０００時間試
駆をした。その結果、Ｔｅ／アクリルは、１００時間以
内で白く透明になったｉ）！１、本発明による媒体５は
ほとんど変化はなかった。また１０００時間後も、感度
、Ｃ／Ｎの劣化は認められず長期保存光ディスクメモリ
として十分なものであることが分った。5 has the same configuration as in Fig. 1, and 8 has the Te300 A/
It is acrylic. Further, 9 is acrylic. The media Nos. 5 and 8 were tested for about 1000 hours under conditions of 70° C. and RH 90q6. As a result, Te/acrylic became white and transparent within 100 hours i)! 1. There was almost no change in medium 5 according to the present invention. Further, even after 1000 hours, no deterioration in sensitivity or C/N was observed, indicating that the optical disc memory was sufficient for long-term storage.
ｉ１図は本発明に係る情報記録媒体の一実施例を示す概
略断面図であり、６６２図、第３図はそれぞれ本実施例
とＴｅ／ガラスの感度の比較、そして本実施例とＴｅ／
アクリルの安定性の比較を示す説明図である。
１・・・アクリル基板、２．２’・・・パラフィン、３
゜３′・・・８１０層、４・・・Ｔｅ 、 ５・・・実
施例の場合、６・・・Ｔｅ／ガラスの場合、８・・・Ｔ
ｅ／アクリルの場合、９・・・アクリル、１０・・・ガ
ラス。Figure i1 is a schematic cross-sectional view showing one embodiment of the information recording medium according to the present invention, and Figures 662 and 3 respectively compare the sensitivity of this embodiment and Te/glass, and the sensitivity of this embodiment and Te/glass.
It is an explanatory view showing a comparison of stability of acrylic. 1...Acrylic substrate, 2.2'...Paraffin, 3
゜3'...810 layers, 4...Te, 5...In the case of the example, 6...In the case of Te/glass, 8...T
e/In the case of acrylic, 9...acrylic, 10...glass.
Claims (1)
層を配設し、該記録層にエネルギービームを集束し、そ
の熱エネルギーによって該記録層に穴を形成し、その穴
に光ビームを照射しその反射光又は透過光を検出するこ
とによって情報を読み出す情報記録媒体において、
゛基板上に第１層として透明性有機物層を配設
し、更に第２層として透明性セラミック）−を配設し、
その上に第３層として記録層を配設し、更にその上に第
４層として透明性セラミック層を配設し、更にその上に
第５層として透明性有機物層を配設することを特徴とす
る情報記録媒体。 ２、前記セラミック層として酸化物又は窒化物又はフッ
化物を使用するものであって更に該酸化物としてはＳｔ
、Ｂ、Ｂｅ、ＡＡ、Ｔｉ 、Ｖ、Ｃｒ 、Ｍｎ、Ｃｏ
。 Ｎｉ 、Ｚｎ、Ｇｅ、Ｃｄ、Ｉｎ、Ｓｎ、Ｓｂ、Ｔｅ、
Ｗ、Ｐｂ、Ｂｉからなる群から選ばれた少なくとも一元
素の酸化物、該フッ化物としてはＣｅ、Ｍｆ、のうちか
ら選ばれた少々くとも一元素のフッ化物、窒化物として
はＳｔ。 Ｇａ のうちから選ばれた一元素の窒化物からなること
を特徴とする特許請求の範囲第１項記載の情報記録媒体
。 ３有機物としては、炭素数が１５以上のパラフィン系炭
化水嵩、炭素数が１５以上であって、Ｚｎ。 Ａ／、 、 Ｂａ 、 Ｍｆ 、 Ｐｂ 、 ＴＬ
からなる群から選ばれた少なくとも一つの金属から得ら
れる脂肪酸塩、ワックス系統、油脂、ポリオレフィン、
及びポリオレフィンの誘導体からなシ且つ融点温度が４
０℃以上のものを使用することを特徴とする特許請求の
範囲第１項記載の情報記録媒体。[Claims] 1. A recording layer made of metal, metalloid, organic dye, etc. is provided on a substrate, an energy beam is focused on the recording layer, and holes are formed in the recording layer using the thermal energy. , an information recording medium in which information is read by irradiating a light beam into the hole and detecting the reflected light or transmitted light,
``A transparent organic material layer is provided as a first layer on a substrate, and a transparent ceramic layer is further provided as a second layer,''
A recording layer is provided as a third layer on top of the recording layer, a transparent ceramic layer is provided as a fourth layer on top of the recording layer, and a transparent organic layer is further provided as a fifth layer on top of that. Information recording medium. 2. An oxide, a nitride, or a fluoride is used as the ceramic layer, and the oxide further includes St.
, B, Be, AA, Ti, V, Cr, Mn, Co
. Ni, Zn, Ge, Cd, In, Sn, Sb, Te,
An oxide of at least one element selected from the group consisting of W, Pb, and Bi; the fluoride is a fluoride of at least one element selected from Ce and Mf; and the nitride is St. The information recording medium according to claim 1, characterized in that it is made of a nitride of one element selected from Ga. 3. Examples of organic substances include paraffinic hydrocarbons having 15 or more carbon atoms, and Zn having 15 or more carbon atoms. A/, , Ba, Mf, Pb, TL
Fatty acid salts, wax series, oils and fats, polyolefins obtained from at least one metal selected from the group consisting of
and a polyolefin derivative and whose melting point temperature is 4.
The information recording medium according to claim 1, characterized in that the medium has a temperature of 0° C. or higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56100522A JPS583143A (en) | 1981-06-30 | 1981-06-30 | information recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56100522A JPS583143A (en) | 1981-06-30 | 1981-06-30 | information recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS583143A true JPS583143A (en) | 1983-01-08 |
| JPS6245616B2 JPS6245616B2 (en) | 1987-09-28 |
Family
ID=14276284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56100522A Granted JPS583143A (en) | 1981-06-30 | 1981-06-30 | information recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS583143A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6278749A (en) * | 1985-07-08 | 1987-04-11 | エナ−ジ−・コンバ−シヨン・デバイセス・インコ−ポレ−テツド | Data memory and system |
| EP0308981A2 (en) * | 1987-09-25 | 1989-03-29 | Hitachi Maxell Ltd. | An optical information recording medium and its production |
| JPH02281436A (en) * | 1989-04-21 | 1990-11-19 | Nec Corp | Optical recording medium |
| JPH04126327U (en) * | 1991-04-19 | 1992-11-18 | 尚人 波多野 | Ceramic CD |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0387547A (en) * | 1989-08-30 | 1991-04-12 | Kubota Toreen Kk | How to defrost a packaged air conditioner |
-
1981
- 1981-06-30 JP JP56100522A patent/JPS583143A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6278749A (en) * | 1985-07-08 | 1987-04-11 | エナ−ジ−・コンバ−シヨン・デバイセス・インコ−ポレ−テツド | Data memory and system |
| JPH0816992B2 (en) * | 1985-07-08 | 1996-02-21 | エナ−ジ−・コンバ−シヨン・デバイセス・インコ−ポレ−テツド | Optical data storage medium and device |
| EP0308981A2 (en) * | 1987-09-25 | 1989-03-29 | Hitachi Maxell Ltd. | An optical information recording medium and its production |
| EP0308981A3 (en) * | 1987-09-25 | 1990-08-08 | Hitachi Maxell Ltd. | An optical information recording medium and its production |
| JPH02281436A (en) * | 1989-04-21 | 1990-11-19 | Nec Corp | Optical recording medium |
| JPH04126327U (en) * | 1991-04-19 | 1992-11-18 | 尚人 波多野 | Ceramic CD |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6245616B2 (en) | 1987-09-28 |
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