JPS5836490A - Optical information recording medium - Google Patents
Optical information recording mediumInfo
- Publication number
- JPS5836490A JPS5836490A JP56116028A JP11602881A JPS5836490A JP S5836490 A JPS5836490 A JP S5836490A JP 56116028 A JP56116028 A JP 56116028A JP 11602881 A JP11602881 A JP 11602881A JP S5836490 A JPS5836490 A JP S5836490A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- information recording
- substrate
- bronze
- thin film
- 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
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
- G11B7/244—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 organic materials only
- G11B7/246—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 organic materials only containing dyes
- G11B7/248—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 organic materials only containing dyes porphines; azaporphines, e.g. phthalocyanines
-
- 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
- G11B7/244—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 organic materials only
-
- 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
- G11B7/244—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 organic materials only
- G11B7/245—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 organic materials only containing a polymeric component
-
- 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
- G11B7/258—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
Landscapes
- Thermal Transfer Or Thermal Recording In General (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は情報記録層として改良された色素層を有する光
学的情報記録媒体に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an optical information recording medium having an improved dye layer as an information recording layer.
従来、この種の光学的情報記録媒体としては種々の構成
の4のが知られている0例えば、特開昭55−9703
3号公報には基板上に7タロシアニン化合物の単層を設
けたものが開示されている。Conventionally, as this type of optical information recording medium, 4 types of various configurations are known.
Publication No. 3 discloses a structure in which a single layer of a 7-talocyanine compound is provided on a substrate.
しかしながら、有機色素膜の表面における反射率は一般
に低いためにレーザー光により記骨された部分と未記録
部分との反射率に関係するコントラストは低くなり記録
された情報の再生が困難となる欠点がある。この欠点を
解消するために二層構造のものが提案されている。すな
わち、反射率の高い物質たとえばAI、ム91 、Pt
、Ou 。However, since the reflectance on the surface of the organic pigment film is generally low, the contrast related to the reflectance between the areas inscribed by the laser beam and the unrecorded areas is low, making it difficult to reproduce the recorded information. be. In order to overcome this drawback, a two-layer structure has been proposed. That is, materials with high reflectivity such as AI, Mu91, Pt
, Ou.
N1マたはOrの金属薄膜を配録層と基板の間かあるい
は記録層の上に設けることによシコントラストの向上を
はかつている。しかしながらかかる手段によってコント
ラストが向上したとしても記録層だけのものに比較して
、高反射率層が必要となシ製造工程が増加するという欠
点をもつとともに製造時点において記録層と高反射率層
との境界面に塵埃などの異物が混入する仁ともあシ製造
の歩留シが低下するという欠点をもっている。さらに1
高反射率層の空気中における酸化などによる光学的特性
の劣化による信頼性の急化という欠点がある。また、基
板と高反射率層との関に記録層がサンドイッチ状態にな
っているものはレーザ光による記録層の飛散による記録
が充分性なわれないことがら記録感度を低下させゐとい
う欠点をもっている。The contrast is improved by providing a metal thin film of N1 or Or between the recording layer and the substrate or on the recording layer. However, even if the contrast is improved by such a method, it has the disadvantage that a high reflectance layer is required and the number of manufacturing steps is increased compared to the case where only the recording layer is used. This method has the disadvantage that the yield rate in the production of reeds is reduced due to the contamination of foreign matter such as dust at the boundary surface of the reeds. 1 more
There is a drawback that reliability deteriorates rapidly due to deterioration of optical characteristics due to oxidation of the high reflectance layer in the air. Furthermore, those in which the recording layer is sandwiched between the substrate and the high reflectance layer have the disadvantage that the recording sensitivity is reduced because the recording layer is not sufficiently recorded due to scattering of the recording layer by the laser beam. .
そこで1本発明の目的は先行技術の欠点を克服しかつブ
ロンズ光沢を有する有機色素の使用によって色素層の単
層構成からなる光学的情報記録媒体を提供するにある。SUMMARY OF THE INVENTION An object of the present invention is to overcome the drawbacks of the prior art and to provide an optical information recording medium having a single layer structure of a dye layer by using an organic dye having a bronze luster.
すなわち、本発明によれば基板にブロンズ光沢を有する
有機色素の情報記録層を担持せしめた単層構造を有する
光学的情報記録媒体が提供される0本発明による光学的
情報記録媒体の2例の断面図を添付図面に示す、第1図
は基板1と情報記録層2だけからなシ保護層のない場合
そして第2図は保護層3のある場合である。保護層の存
在は必須ではないが望ましい。That is, according to the present invention, there is provided an optical information recording medium having a single layer structure in which an information recording layer of an organic dye having bronze luster is supported on a substrate. The cross-sectional views are shown in the accompanying drawings. FIG. 1 shows a case consisting of only a substrate 1 and an information recording layer 2 without a protective layer, and FIG. 2 shows a case with a protective layer 3. The presence of a protective layer is not essential but desirable.
本発明において使用される基板材料は当業者には既知の
ものであシ、使用レーザー光に対して透明または不透明
のいずれでもよい、ただし、基板側からレーザー光で書
込み記録を行なう場合は、書込みレーザー光に対して透
明でなければならない。一方、基板と反対側すなわち記
録層の表面から書込み記録を行なう場合は、書込みレー
ザー光に対して透明である必要はない。The substrate material used in the present invention is known to those skilled in the art and may be either transparent or opaque to the laser beam used. Must be transparent to laser light. On the other hand, when writing and recording is performed from the side opposite to the substrate, that is, from the surface of the recording layer, it is not necessary to be transparent to the writing laser beam.
しかしながら、読み出し再生を透過光で行なう場合は読
み出しレーザー光に対して透明でなければならない、読
み出し再生を反射光で行なう場合は読み出しレーザー光
に対して透明または不透明のいずれでもよい。基板材料
の材質としては、ガラス、石英、セラミック、プラスチ
ックス、紙、板状または箔状の金属などの一般に使用さ
れている記録材料の支持体でよい、特K。However, when read and reproduced by transmitted light, it must be transparent to the read laser beam, and when read and reproduced by reflected light, it may be either transparent or opaque to the read laser beam. The substrate material may be a commonly used recording material support such as glass, quartz, ceramic, plastics, paper, plate-shaped or foil-shaped metal.
プラスチックスが安全性、記録感度向上、平面性、軽量
、加工性などの点から好適である。代表的な、′ラスチ
ーツクスとしては塩化ビニル樹脂、酢酸ビニル樹脂、ア
クリル樹脂、メタクリル樹脂、ポリエステル樹脂、ニト
ロセルロース、ポリエチレン樹脂、ポリプロピレン樹脂
、ポリアミド樹脂、ポリスチレン樹脂、ポリカーボネー
ト樹脂、エポキシ樹脂などがあげられる。Plastics are preferred from the viewpoints of safety, improved recording sensitivity, flatness, light weight, workability, etc. Typical ``lastics'' include vinyl chloride resin, vinyl acetate resin, acrylic resin, methacrylic resin, polyester resin, nitrocellulose, polyethylene resin, polypropylene resin, polyamide resin, polystyrene resin, polycarbonate resin, and epoxy resin.
一本発明における情報記銀層を構成する有機色素として
は、銅フタロシアニン、鉛7タロシアニン、ポリクロロ
ー鋼フタロシアニンなどの7タロシアニン誘導体、11
.M’−ジメチル置換ばリレン顔料、 N、M’−ジア
ニソール置換破りVン顔料などのRリレ/*Nll導体
、メチレンブルー、ニューメチレ゛ンブルーなどのフェ
ノチアジン系染料、ハロゲン置換チオインジゴ、メチル
、ノ蔦ロゲン置換チオ、インジゴまどのインジゴ系染料
および顔料、インダンスレ/ブリリアントオレンジなど
のハリノン系染料および顔料、インダンスレン系色1%
O,工、ソルベ/ト・ブルー12などのアントラキノ
ン系染料、ノセ2・マジエンタ、、H−スなどのトリフ
ェニルメタン系染料、C1工1モルダントブラック1t
たは11などのモノアゾ系染料、1,5−ビス−(ジメ
チルアミノ)インタメチニウムバークロレート、オフラ
ミンなどのシアニン系色素などがあげられる。このよう
な有機色素は1001〜5顯 好ましくは1oooX〜
3μmの膜厚さで基板上に適用される。適用法としては
真空蒸着法、スパッタリング法、イオンプレート法、気
相成長法、エピタキシャル成長法、ドクターブレード法
、キャスト法、スピナー法、浸漬法などの薄膜形成法が
ある。特に成膜の容易さ材料選択の自由度の大きさ、薄
膜の均一性、平滑性、成膜工程の簡単さ、大面積化など
の点から抵抗加熱、電子ビーム加熱などの真空蒸着法が
好適である。また、必要に応じてバインダーと混合して
成膜することもできる。Examples of organic dyes constituting the information recording silver layer in the present invention include 7-thalocyanine derivatives such as copper phthalocyanine, lead 7-thalocyanine, and polychlorosteel phthalocyanine;
.. M'-dimethyl-substituted barylene pigments, N,M'-dianisole-substituted broken V-type pigments, etc., R-lylene/*Nll conductors, methylene blue, new methylene blue, and other phenothiazine dyes, halogen-substituted thioindigo, methyl, and halogen-substituted Indigo dyes and pigments such as Thio, Indigo Mado, Halinone dyes and pigments such as Indanthrene/Brilliant Orange, Indanthrene colors 1%
Anthraquinone dyes such as O, Co., Sorbet/Blue 12, Triphenylmethane dyes such as Nose 2, Mazienta, H-S, C1 Co. 1 Mordant Black 1 t.
or 11, cyanine dyes such as 1,5-bis-(dimethylamino)intermethinium verchlorate, and oframin. Such organic dyes are 1001~5㎯, preferably 1oooX~
A film thickness of 3 μm is applied onto the substrate. Applicable methods include thin film forming methods such as vacuum evaporation, sputtering, ion plate, vapor phase growth, epitaxial growth, doctor blade, cast, spinner, and immersion methods. In particular, vacuum evaporation methods such as resistance heating and electron beam heating are preferred from the viewpoints of ease of film formation, large degree of freedom in material selection, uniformity and smoothness of the thin film, simplicity of the film formation process, and large area. It is. Further, if necessary, it can be mixed with a binder to form a film.
本発明における情報記録層は上述のよう処して基板上に
形成された有機色素層にブロンズ光沢を形成させること
によって調製される。有機色素のブロンズは情報記録層
と基板との界面、情報記録層の表面、情報記録層と基板
との界面および情報記録層の表面の両面に形成させても
よい。しかしながら、膜厚さが薄い場合は記録層全体が
ブロンズ光沢を示すようになる。いずれの面にブロンズ
光沢が形成されたとしても光学的に情報を記録再生する
場合はブロンズ光沢のある面からレーザ光を照射するの
が効率的である。The information recording layer in the present invention is prepared by forming a bronze luster on the organic dye layer formed on the substrate as described above. The organic dye bronze may be formed on both sides of the interface between the information recording layer and the substrate, the surface of the information recording layer, the interface between the information recording layer and the substrate, and the surface of the information recording layer. However, when the film thickness is thin, the entire recording layer exhibits bronze luster. Regardless of which surface has bronze luster, when optically recording and reproducing information, it is efficient to irradiate laser light from the surface with bronze luster.
ブロンズ光沢の正反射率は本発明にかかわろ垂直入射光
の場合、一般に次式で示される。Regardless of the present invention, the specular reflectance of bronze luster is generally expressed by the following equation in the case of vertically incident light.
(n−i)2+に2
(n+1 ) 2+に2
上式中、rは正反射率、nは吸収媒質の屈折率λ
の夾数部、kはa収用数でnk=−j−α(2=入射光
の波長、α=媒質の吸収係数)で示される。(n-i) 2 for 2+ (n+1) 2 for 2+ In the above formula, r is the specular reflectance, n is the additive part of the refractive index λ of the absorbing medium, and k is the number of a expropriations, nk=-j-α( 2=wavelength of incident light, α=absorption coefficient of medium).
金属のように強い反射はふつう金属反射あるいは金属光
沢と呼ばれ、kがかなシ大きくなる。Strong reflections such as those from metals are usually called metallic reflections or metallic luster, and k is k.
化合物でもkが大きければ同じように金属反射を示す。Compounds also exhibit metallic reflection if k is large.
この場合には選択反射が著、しい、すなわち、吸収帯の
付近の光を多く反射し、反射光は多くの場合、透過光と
余色をなす、これを顔料関係ではブロンズ光沢と呼んで
いる。In this case, selective reflection is significant, meaning that much of the light near the absorption band is reflected, and the reflected light often has an additional color to the transmitted light.In pigment-related circles, this is called bronze luster. .
ブロンズ光沢の形成は結晶化によ1屈折率および吸収指
数の増大をはかつて反射率を増大させることによって行
なわれる。また、結晶化まではしなくとも分子の配向化
を行なって反射光の方向を一定にすることによシ正反射
率を増大させる。さらに、結晶化ないし配向化が行なわ
れなくともたとえば金属表面を研摩して表面が光学的に
平滑な面に形成されれば反射率が増加するという事実が
知られている。これらの手段によシ反射率の増大がはか
れる。The formation of a bronze luster is achieved by crystallization, which increases the refractive index and absorption index, which previously increases the reflectance. Moreover, even if crystallization is not performed, the regular reflectance is increased by orienting the molecules and making the direction of the reflected light constant. Furthermore, it is known that even without crystallization or orientation, if a metal surface is polished to form an optically smooth surface, the reflectance increases. By these means, the reflectance can be increased.
本発明におけるブロンズ光沢形成法としては、ブロンズ
光沢およびブロンズ光沢形成要因にもとづいて次のよう
な方法があげられる。薄膜を材料に適した温度および雰
囲気中でアニーリングするととKよシ結晶化を行なう、
粉末などを加圧整形することによシ分子の配向性や平滑
面を形成させる。結晶面のそろった結晶性基板上に薄膜
を形成させる。基板を加熱しておいてその基板上に薄膜
を形成させる。熔融後徐冷を行なう、溶液の場合力どけ
溶媒を徐々に蒸発させるいわゆるキャスト法が適してい
る。電場・磁場の存在下で色素を配向させて成膜を行な
う。Examples of the bronze gloss forming method in the present invention include the following methods based on bronze gloss and bronze gloss forming factors. When the thin film is annealed at a temperature and atmosphere suitable for the material, K-yellow crystallization occurs.
Molecule orientation and smooth surfaces are formed by pressurizing powder and the like. A thin film is formed on a crystalline substrate with aligned crystal planes. The substrate is heated and a thin film is formed on the substrate. In the case of a solution, a so-called casting method is suitable, in which slow cooling is performed after melting, and in the case of a solution, the melting solvent is gradually evaporated. The film is formed by orienting the dye in the presence of an electric or magnetic field.
液晶などで色素′を配、向させる。試料表面をこするこ
とによシ平滑性をもたせる。これらの方法およびこれら
の方法の適当な組み合わせでブロンズ光沢を形成させる
。The dye' is aligned and oriented using a liquid crystal, etc. Rub the surface of the sample to make it smooth. These methods and suitable combinations of these methods form a bronze luster.
本発明の光学的情報記録媒体においては必要に応じて保
護層を設けてもよい。保!I層は使用レーザー光に対し
て透明であシ、機械的強度が大で記録層とは反応しに<
<、皮膜性がよいものであればどのようなものでもよい
。かかる保護層はAj205.5102、SiQ、 M
gO,ZnQ、 MgF2.0u−F2などの無機材料
を膜厚さ50〜5oooX好ましくは100〜2ooo
Aにおいて真空蒸着法、スパッタリング法、イオンプレ
ート法、イオンクラスタ法などの一般に行なわれている
操作で薄膜形成させたものである。有機材料として特に
好ましいものは成膜性、加工性の点から有機高分子化合
物である。たとえばポリスチレン、ポリエステル、ポリ
カーボネート、ポリキシレン、ポリ塩化ビニル、ポリア
クリロニトリル、ポリメタクリロニトリル、ポリアクリ
ル酸エステル、ポリメタクリル酸ニス”チル、ポリ酢酸
ビニル、ポリエチレン、ポリプロピレン、ポリエポキシ
、ポリアミド、ポリ尿素、フェノール樹脂々どの単独重
合体および共重合体などがあげられる。これらは真空蒸
着法、スパッタリング法、気相成長法、グロー放電法、
溶剤塗布法など一般に行なわれている薄膜形成法で膜厚
さ01〜5μm好ましくは115〜2μmの薄膜となさ
れる。In the optical information recording medium of the present invention, a protective layer may be provided as necessary. Safe! The I layer is transparent to the laser beam used, has high mechanical strength, and does not react with the recording layer.
<, Any material may be used as long as it has good film properties. Such a protective layer is Aj205.5102, SiQ, M
Inorganic materials such as gO, ZnQ, MgF2.0u-F2 are coated with a film thickness of 50 to 5oooX, preferably 100 to 2ooo
In A, a thin film was formed by a commonly used operation such as a vacuum evaporation method, a sputtering method, an ion plate method, or an ion cluster method. Particularly preferred organic materials are organic polymer compounds from the viewpoint of film formability and processability. For example, polystyrene, polyester, polycarbonate, polyxylene, polyvinyl chloride, polyacrylonitrile, polymethacrylonitrile, polyacrylic ester, polymethacrylate, polyvinyl acetate, polyethylene, polypropylene, polyepoxy, polyamide, polyurea, Examples include homopolymers and copolymers such as phenolic resins.
A thin film having a thickness of 01 to 5 μm, preferably 115 to 2 μm is formed by a commonly used thin film forming method such as a solvent coating method.
本発明の光学的情報記録媒体に適用されるレーザ光は一
般に有機色素は波長選択性が高いため有機色素の吸収波
長に応じて選択する必要がある。従って、それぞれの有
機色素に応じて、N2、He−0% Ar、 He−N
ヘルビー、色素、半導体レーザーなどが選択される。The laser beam applied to the optical information recording medium of the present invention must be selected depending on the absorption wavelength of the organic dye, since organic dyes generally have high wavelength selectivity. Therefore, depending on each organic dye, N2, He-0% Ar, He-N
Herby, dyes, semiconductor lasers, etc. are selected.
次に本発明をさらに詳細に説明するために比較例ととも
に実施例をあげるがこれに限定されるものではない。Next, in order to explain the present invention in more detail, examples will be given along with comparative examples, but the present invention is not limited thereto.
比較例 1
厚さ1mのガラス板上に真空度10−’Torrの条件
で基板温度を室温にして銅フタロシアニンを真空蒸着法
で蒸着して3000にの薄膜を形成した。この試料を蒸
着器の窓から観察すると赤紫色のブロンズ光沢が観察さ
れた。Comparative Example 1 Copper phthalocyanine was deposited on a glass plate with a thickness of 1 m using a vacuum evaporation method under the condition of a vacuum degree of 10-'Torr and the substrate temperature at room temperature to form a thin film of 3000 ml. When this sample was observed through the window of the evaporator, a reddish-purple bronze luster was observed.
実施例 1
厚さ1mのガラス板上に真空度10−’Torrの条件
で基板温度を150℃にして銅フタロシアニンを真空蒸
着法で蒸着して3000スの薄膜を形成した。この試料
を比較例1と同一条件で観察すると赤紫色のブロンズ光
沢が観察され、本実施例におけるブロンズ光沢の方が比
較例1におけるブロンズ光沢よりもすぐれていることが
わかった。Example 1 Copper phthalocyanine was deposited on a glass plate with a thickness of 1 m using a vacuum evaporation method at a vacuum level of 10-' Torr and a substrate temperature of 150° C. to form a thin film of 3000 μm. When this sample was observed under the same conditions as Comparative Example 1, reddish-purple bronze gloss was observed, and it was found that the bronze gloss in this example was superior to that in Comparative Example 1.
比較例 2
厚さ2■のステンレス板を基板として使用した以外は比
較例1と同様の条件で蒸着しブロンズ光沢を観察した。Comparative Example 2 Vapor deposition was performed under the same conditions as in Comparative Example 1, except that a 2-inch thick stainless steel plate was used as the substrate, and bronze luster was observed.
実施例 2
厚さ2箇のステンレス板上に真空度10 Torr
□の条件で基板温度1に150℃にして銅7タロシ
アニンを真空蒸着法で蒸着してxooofの薄膜を形成
した。この試料を比較例1と同一条件で観察すると赤紫
色のブロンズ光沢が観察され本実施例におけるブロンズ
光沢の方が比較例2におけるブロンズ光沢よシもすぐれ
ていることがわかった。Example 2 Vacuum level 10 Torr on two thick stainless steel plates
Under the conditions of □, the substrate temperature was set to 1 and 150° C., and copper 7-talocyanine was deposited by vacuum evaporation to form a thin film of xooof. When this sample was observed under the same conditions as Comparative Example 1, reddish-purple bronze gloss was observed, and it was found that the bronze gloss of this example was superior to that of Comparative Example 2.
比較例 6
厚さ1箇のガラス板上に真空度10−’Torrの条件
で基板温度を室温にして鉛7タロシアニンを真空蒸着法
で蒸着して2900λ、の、薄j[管形成した。Comparative Example 6 A thin tube of 2900 λ was formed by depositing lead-7 talocyanine on a glass plate with a thickness of 1 by vacuum evaporation at a vacuum level of 10-'Torr and the substrate temperature at room temperature.
この薄膜に薄膜面への入射角を15°にして6330X
の単色光を照射して正反射率を測定したところ5.5−
であった、さらに、Rθ−Noレーザー(6330りで
配録再生を行なったところ、記録部と未記録部との反射
率をそれぞれム、Bとしたときのコントラスト0 =A
B/ (A+B )はα27であった。This thin film is 6330X with an angle of incidence of 15° on the thin film surface.
When the specular reflectance was measured by irradiating it with monochromatic light, it was 5.5-
Furthermore, when recording and playback was performed using an Rθ-No laser (6330), the contrast was 0 = A, where the reflectance of the recorded area and the unrecorded area were defined as M and B, respectively.
B/(A+B) was α27.
実施例 6
10−’Torrの真空度で蒸着した以外はすべて比較
例5と同一条件で薄膜を形成してコントラストCを測定
した結果[131であった。Example 6 A thin film was formed under the same conditions as in Comparative Example 5 except that the deposition was performed at a vacuum level of 10-'Torr, and the contrast C was measured to be 131.
上述のようにして製造された本発明による光学的情報配
録媒体は次のような種々の効果な奏する。すなわち、一
般に熱伝導率が高い金属層が存在しないために色素に吸
収されたレーザー光の熱エネルギーが有効に色素を消失
するのに使われるため高感度化記録がはかれる。また。The optical information recording medium according to the present invention manufactured as described above has various effects as described below. That is, since there is generally no metal layer with high thermal conductivity, the thermal energy of the laser light absorbed by the dye is effectively used to eliminate the dye, resulting in high-sensitivity recording. Also.
本発明の光学的情報記録体の製法において、反射層金属
の成膜工程を省略できるめで少なくとも1工鵬は簡単化
される。従って、塵埃などの異物の混入防止が容易とな
シ記録媒体の信頼性が向上する。また、反射層金属が存
在しないため金属の空気中での酸化などによる品質劣化
の心配がない。また、ブロンズ光沢が大きければ記録部
と未記録部とのコントラストが向上する。In the method for manufacturing an optical information recording medium of the present invention, the step of forming a reflective layer metal can be omitted, which simplifies the process by at least one step. Therefore, the reliability of the recording medium is improved because it is easy to prevent foreign matter such as dust from entering the recording medium. Furthermore, since there is no reflective layer metal, there is no risk of quality deterioration due to oxidation of the metal in the air. Further, if the bronze gloss is large, the contrast between the recorded area and the unrecorded area is improved.
さらに、反射型および透過型の両方式で再生が行なえる
。Furthermore, reproduction can be performed using both reflective and transmissive methods.
添付図面において、第1図は本発明の光学的情報記録媒
体の基本的構成を示す断面図でありそして第2図は本発
明の光学的情報記録媒体において保護層のある場合であ
る。
1・・・基板、2・・・情報記碌層、3・・・保護層。
第1図
第2図In the accompanying drawings, FIG. 1 is a sectional view showing the basic structure of the optical information recording medium of the present invention, and FIG. 2 is a cross-sectional view showing the optical information recording medium of the present invention with a protective layer. 1... Substrate, 2... Information storage layer, 3... Protective layer. Figure 1 Figure 2
Claims (1)
層を担持せしめたことを特徴とする、レーザ光線によっ
て状態変化を生ぜしめることにより記碌再生を行なうた
めの光学的情報記録媒体。1. An optical information recording medium for recording and reproducing data by causing a state change with a laser beam, characterized in that a substrate carries a single-layer information storage layer of an organic dye having a bronze luster.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56116028A JPS5836490A (en) | 1981-07-24 | 1981-07-24 | Optical information recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56116028A JPS5836490A (en) | 1981-07-24 | 1981-07-24 | Optical information recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5836490A true JPS5836490A (en) | 1983-03-03 |
Family
ID=14676969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56116028A Pending JPS5836490A (en) | 1981-07-24 | 1981-07-24 | Optical information recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5836490A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59169896A (en) * | 1983-03-09 | 1984-09-25 | イ−ストマン・コダツク・カンパニ− | Binder |
JPS59185053A (en) * | 1983-04-04 | 1984-10-20 | Seiko Instr & Electronics Ltd | Photomagnetic disc |
JPS59188855A (en) * | 1983-04-12 | 1984-10-26 | Tdk Corp | Optical recording medium |
JPS59203252A (en) * | 1983-05-06 | 1984-11-17 | Ricoh Co Ltd | Optical information recording medium |
JPS59218634A (en) * | 1983-05-27 | 1984-12-08 | Ricoh Co Ltd | Writing and reading-out method of optical information recording medium |
JPS6089845A (en) * | 1983-07-28 | 1985-05-20 | ゼネラル・エレクトリツク・カンパニイ | Information carrier for optically readable information |
JPS60159088A (en) * | 1984-01-30 | 1985-08-20 | Tdk Corp | Photo-recording medium |
JPS60184887A (en) * | 1984-03-05 | 1985-09-20 | Hiroyoshi Shirai | Optical recording medium and recording method thereof |
JPS60230891A (en) * | 1984-05-01 | 1985-11-16 | Ricoh Co Ltd | Optical information-recording medium |
US4917989A (en) * | 1987-05-19 | 1990-04-17 | Basf Aktiengesellschaft | Optical recording medium which has a reflector layer containing a silicon-phthalocyanine derivative |
EP0381211A2 (en) * | 1989-02-01 | 1990-08-08 | Mitsui Petrochemical Industries, Ltd. | Optical recording media |
JPH04226388A (en) * | 1990-04-07 | 1992-08-17 | Mitsui Toatsu Chem Inc | Optical recording medium |
JPH04226387A (en) * | 1990-06-19 | 1992-08-17 | Mitsui Toatsu Chem Inc | Optical card |
EP0689202A2 (en) * | 1994-06-22 | 1995-12-27 | Pioneer Electronic Corporation | Optical recording medium |
-
1981
- 1981-07-24 JP JP56116028A patent/JPS5836490A/en active Pending
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59169896A (en) * | 1983-03-09 | 1984-09-25 | イ−ストマン・コダツク・カンパニ− | Binder |
JPS59185053A (en) * | 1983-04-04 | 1984-10-20 | Seiko Instr & Electronics Ltd | Photomagnetic disc |
JPS59188855A (en) * | 1983-04-12 | 1984-10-26 | Tdk Corp | Optical recording medium |
JPH0441060B2 (en) * | 1983-04-12 | 1992-07-07 | Tdk Electronics Co Ltd | |
JPS59203252A (en) * | 1983-05-06 | 1984-11-17 | Ricoh Co Ltd | Optical information recording medium |
JPS59218634A (en) * | 1983-05-27 | 1984-12-08 | Ricoh Co Ltd | Writing and reading-out method of optical information recording medium |
JPH0519205B2 (en) * | 1983-05-27 | 1993-03-16 | Ricoh Kk | |
JPS6089845A (en) * | 1983-07-28 | 1985-05-20 | ゼネラル・エレクトリツク・カンパニイ | Information carrier for optically readable information |
JPH0363138B2 (en) * | 1983-07-28 | 1991-09-30 | Gen Electric | |
JPS60159088A (en) * | 1984-01-30 | 1985-08-20 | Tdk Corp | Photo-recording medium |
JPH0452239B2 (en) * | 1984-01-30 | 1992-08-21 | Tdk Electronics Co Ltd | |
JPS60184887A (en) * | 1984-03-05 | 1985-09-20 | Hiroyoshi Shirai | Optical recording medium and recording method thereof |
JPH0447632B2 (en) * | 1984-03-05 | 1992-08-04 | Hiroyoshi Shirai | |
JPS60230891A (en) * | 1984-05-01 | 1985-11-16 | Ricoh Co Ltd | Optical information-recording medium |
US4917989A (en) * | 1987-05-19 | 1990-04-17 | Basf Aktiengesellschaft | Optical recording medium which has a reflector layer containing a silicon-phthalocyanine derivative |
EP0381211A2 (en) * | 1989-02-01 | 1990-08-08 | Mitsui Petrochemical Industries, Ltd. | Optical recording media |
JPH04226388A (en) * | 1990-04-07 | 1992-08-17 | Mitsui Toatsu Chem Inc | Optical recording medium |
JPH04226387A (en) * | 1990-06-19 | 1992-08-17 | Mitsui Toatsu Chem Inc | Optical card |
EP0689202A2 (en) * | 1994-06-22 | 1995-12-27 | Pioneer Electronic Corporation | Optical recording medium |
EP0689202A3 (en) * | 1994-06-22 | 1996-02-07 | Pioneer Electronic Corp | Optical recording medium |
US5635268A (en) * | 1994-06-22 | 1997-06-03 | Pioneer Electronic Corporation | Optical recording medium |
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