JPS6137479A - Optical recording element - Google Patents

Optical recording element

Info

Publication number
JPS6137479A
JPS6137479A JP59159107A JP15910784A JPS6137479A JP S6137479 A JPS6137479 A JP S6137479A JP 59159107 A JP59159107 A JP 59159107A JP 15910784 A JP15910784 A JP 15910784A JP S6137479 A JPS6137479 A JP S6137479A
Authority
JP
Japan
Prior art keywords
layer
film
light
color
substrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP59159107A
Other languages
Japanese (ja)
Inventor
Yukio Nishimura
征生 西村
Harunori Kawada
河田 春紀
Masahiro Haruta
春田 昌宏
Yutaka Hirai
裕 平井
Noritaka Mochizuki
望月 則孝
Takashi Nakagiri
孝志 中桐
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.)
Canon Inc
Original Assignee
Canon 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 Canon Inc filed Critical Canon Inc
Priority to JP59159107A priority Critical patent/JPS6137479A/en
Publication of JPS6137479A publication Critical patent/JPS6137479A/en
Priority to US07/233,902 priority patent/US4933221A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record 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
    • G11B7/244Record 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record 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
    • G11B7/244Record 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
    • G11B7/246Record 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
    • G11B7/248Record 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242Record 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
    • G11B7/244Record 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
    • G11B7/246Record 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

Abstract

PURPOSE:To obtain optical recording elements having high reliability high packing density by laminating a layer A of color-forming compound and a layer B of assistant color-forming compound with a light-absorbing layer provided, the layer B and the layer B being formed with either a monomolecular film or an accumulated film respectively. CONSTITUTION:A layer-A 2 of color-forming compound and a layer-B 4 of assistant color-forming compound are laminated and further a light-absorbing layer 3 is provided on said layer-B 4. The layer-A 2 and the layer-B 4 are laminates of either a monomolecular film or its accumulated film, and the light-absorbing layer 3 is a laminate of laminated films. The light-absorbing layer 3 is supported on a substrate 1, and the substrate, light-absorbing layer, layer B and layer A are laminated in that order. Consequently, compared to the conventional recording element, the titled element has higher packing density and higher signal/ noise ratio, thus enhancing recording reliability.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は有機材料を利用した光記録素子に関し、特に高
度に分子配向された有機薄膜を利用した高信頼・高密度
記録の可能な光記録素子に関するものである。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an optical recording element using an organic material, and in particular to an optical recording device capable of highly reliable and high-density recording using a highly molecularly oriented organic thin film. It is related to the element.

[従来の技術] 最近、オフィス・オートメーション(OA)の中心的記
録(憶)素子として光ディスクが脚光を集めている。そ
の理由は光ディスク一枚で、大量の文書、文献などを記
録(又は記憶)できるからであり、したがって該光ディ
スクを用いる情報記憶装置を導入するとオフィスにおけ
る文書、文献の整理、管理に一大変革をもたらすものと
期待されている。又、該光デイスク用記録材料としては
安価性、製作容易性、高密度記録性等の特徴を有する有
機材料が注目されている。
[Prior Art] Recently, optical disks have been attracting attention as a central recording device for office automation (OA). The reason for this is that a single optical disc can record (or store) a large amount of documents, literature, etc. Therefore, introducing an information storage device using this optical disc will revolutionize the organization and management of documents and literature in offices. It is expected that it will bring In addition, organic materials, which have characteristics such as low cost, ease of manufacture, and high-density recording properties, are attracting attention as recording materials for optical disks.

この様な有機記録材を用いる従来技術の中で、特に発色
剤と期化剤の接触による発色反応を利用する二成分系の
光記録素子が報告されている(日経産業新聞 昭和58
年10月18日)。
Among the conventional techniques using such organic recording materials, a two-component optical recording element that utilizes a coloring reaction caused by contact between a coloring agent and a periodizing agent has been reported (Nikkei Sangyo Shimbun, 1972).
(October 18, 2017).

従来の該光記録素子の1例を図面に基づいC説明すると
、第2図(a)に示す様に発色剤層7と期化剤層5とが
光吸収層6によって隔てられて基板l上に積層された構
成からなるものである。
An example of the conventional optical recording element will be described with reference to a drawing. As shown in FIG. It consists of a laminated structure.

発色剤(ロイコ体)及び期化剤は各々単独で存在すると
きは無色又は淡色である。
The coloring agent (leuco body) and the stabilizing agent are colorless or light-colored when each exists alone.

該記録素子に記録を行うときは、第2図(b)に示す様
に光吸収層6の所望の位置にレーザ光8を照射すると、
光吸収層のレーザ光を照射された部分はレーザ光を吸収
して溶融し破れて小さな穴があく。
When recording on the recording element, a laser beam 8 is irradiated onto a desired position of the light absorption layer 6 as shown in FIG. 2(b).
The portion of the light-absorbing layer that is irradiated with the laser beam absorbs the laser beam, melts, and rips, leaving a small hole.

その結果、第2図(C)に示す様に光吸収層6によって
隔てられていた発色剤と期化剤がこの小さな穴を通じて
混ざり合い発色する。情報はこの発色点9の形で記録な
いし記憶され、読み出しは別の光源で該記録素子上を走
査し発色点による反射率、透過率等の変化を検出するこ
とにより行われる。
As a result, as shown in FIG. 2(C), the coloring agent and the time-setting agent, which were separated by the light absorption layer 6, mix through the small holes and develop a color. Information is recorded or stored in the form of coloring points 9, and reading is performed by scanning the recording element with another light source and detecting changes in reflectance, transmittance, etc. due to the coloring points.

[発明が解決しようとする問題点] 上記の光記録素子に於いて、記録の高密度化を図るため
には光吸収層6が極力薄く、平坦で、かつ膜厚のむらの
ないものが望ましい、しかしながら、従来の光記録素子
において、光吸収層は例えば真空蒸着法又は回転塗布法
などによって基板上に被膜されているため、厚さを20
0〜500Å以下に薄くしようとすればピンホールが多
発しやすく、このピンホールの箇所で発色剤と期化剤の
2成分が接触して発色するため、信頼性に欠ける欠点が
あった。その上、011記の従来の被膜方法で形成され
る各層の膜内の分子分布配向がランダムであるため、光
照射に伴って膜内で光散乱が生じ、微視的にみた場合、
各光照射の度に生ずる化学反応の度合が異なってくる。
[Problems to be Solved by the Invention] In the above-mentioned optical recording element, in order to achieve high recording density, it is desirable that the light absorption layer 6 be as thin as possible, flat, and without unevenness in film thickness. However, in conventional optical recording elements, the light absorption layer is coated on the substrate by, for example, a vacuum evaporation method or a spin coating method, so the thickness is reduced to 20%.
If an attempt is made to reduce the thickness to 0 to 500 angstroms or less, pinholes tend to occur frequently, and the two components, the coloring agent and the periodizing agent, come into contact at these pinholes and develop color, resulting in a drawback of lack of reliability. Furthermore, since the molecular distribution orientation within the film of each layer formed by the conventional coating method described in 011 is random, light scattering occurs within the film upon irradiation with light, and when viewed microscopically,
The degree of chemical reaction that occurs with each light irradiation differs.

さらに、上述の被膜方法では光ディスクの基板を大面積
化すると、膜厚のむらが生じ、記録品質のむらが発生す
る等の欠点があった。
Furthermore, the above-mentioned coating method has drawbacks such as unevenness in film thickness and uneven recording quality when the substrate of an optical disk has a large area.

したがって、光記録素子としては、膜内の分子分布・配
向が一様で、ピンホールも膜厚のむらもないことが望ま
しく、またできる限りnり厚が薄いことが、記録の高密
度化、高信頼化のために要望される0本発明はかかる要
望に鑑みてなされたもので、本発明の目的は高信頼・高
密度記録が可能な光記録素子を提供することにある0本
発明の別の目的は製作容易で安価な光記録素子を提供す
ることにある0本発明のさらに別の目的は大面積の光記
録素子を提供することにある。
Therefore, as an optical recording element, it is desirable that the molecular distribution and orientation in the film be uniform, that there are no pinholes and that the film thickness is as thin as possible. The present invention has been made in view of the demand for reliability, and an object of the present invention is to provide an optical recording element capable of highly reliable and high-density recording. Another object of the present invention is to provide an optical recording element that is easy to manufacture and inexpensive.A further object of the present invention is to provide an optical recording element with a large area.

[問題点を解決するための手段]及び[作用]即ち、本
発明は通常無色ないし淡色の発色性化合物からなるA層
と、前記発色性化合物と接触して発色せしめる助色性化
合物からなるB層とを積層し、さらに光吸収層を設けて
なり、かつ(イ)前記A層は発色性化合物の単分子膜又
はその累積膜からなる層、 (ロ)前記B層は助色性化合物の単分子膜又はその累積
膜からなる層、 から構成されることを特徴とする光記録素子である。
[Means for Solving the Problems] and [Operation] That is, the present invention consists of a layer A consisting of a color-forming compound that is usually colorless or light-colored, and a layer B consisting of an auxochrome compound that develops a color when it comes into contact with the color-forming compound. (a) the A layer is a monomolecular film of a color-forming compound or a cumulative film thereof; and (b) the B layer is a layer of an auxochrome compound. An optical recording element characterized in that it is composed of a layer consisting of a monomolecular film or a cumulative film thereof.

以下5本発明の詳細な説明する。Hereinafter, five aspects of the present invention will be explained in detail.

本発明に係わる光記録素子は通常無色ないし淡色の発色
性化合物からなるA層と、前記発色性化合物と接触して
発色せしめる助色性化合物とを積層し、さらに光吸収層
を設けた構成からなるものであり、該A層及びB層には
互に接触、混合することにより発色する物質を組合せて
用いることが基本的に要請される。この様な関係にある
A層の通常無色ないし淡色の発色性化合物及びB層の前
記発色性化合物と接触して発色せしめる助色性化合物の
具体例を示すと (イ) 酸性物質(B層)と該酸性物質に接触すること
によって発色する染料のロイコ体(色素前駆体)(A層
) (ロ)酸化剤(B層)と該酸化剤に接触することによっ
て発色する染料のロイコ体(Am)(ハ)還元剤(B層
)と該還元剤に接触することによって発色する染料のロ
イコ体(A層)(ニ)還元剤(B層)とステアリン酸第
2鉄のように還元されると発色する酸化剤(A層)(ホ
)酸化剤(B層)と没食子酸のように酸化されると発色
する還元剤(A層) 等が挙げられる。
The optical recording element according to the present invention has a structure in which a layer A consisting of a usually colorless or light-colored color-forming compound, an auxochromic compound that develops color when in contact with the color-forming compound are laminated, and a light-absorbing layer is further provided. Basically, it is required to use a combination of substances that develop color when they come into contact with and mix with each other in the A layer and B layer. Specific examples of the normally colorless to light-colored color-forming compound in layer A and the auxochrome compound that develops color when they come into contact with the color-forming compound in layer B, which have such a relationship, are as follows: (a) Acidic substance (layer B) and the leuco form of the dye (dye precursor) that develops color when it comes into contact with the acidic substance (layer A) (B) The leuco form of the dye that develops color when it comes into contact with the oxidizing agent (layer B) and the oxidizing agent (Am ) (c) Reducing agent (layer B) and a leuco form of dye that develops color when it comes into contact with the reducing agent (layer A) (d) Reducing agent (layer B) and is reduced like ferric stearate Examples include an oxidizing agent (layer A) that develops color (e), an oxidizing agent (layer B) that develops a color, and a reducing agent (layer A) that develops a color when oxidized, such as gallic acid.

前記(イ)の場合をさらに詳しく例示すれば。Let us give a more detailed example of the case (a) above.

染料のロイコ体と接触して反応し発色せしめるB層の酸
性物質としては、ベンゼンスルホン酸等ノ芳香族スルホ
ン酸化合物、安忌香酸等の芳香族カルボン酸類、パルミ
チン酸(Ga5Hj、 C00H)、ステアリン酸(C
sりH3りC00H)、アラキシン酸(cI?n B9
COOH)等の高級脂肪酸カルボン酸類、 p−t−ブ
チルフェノール、α−ナフトール、β−ナフトール、フ
ェノールフタレイン、ビスフェノールA、 4−ヒドロ
キシジフェノキシド、4−ヒドロキシアセトフェノン等
のフェノール性化合物等が挙げられる。
The acidic substances in the B layer that react with the leuco form of the dye to develop color include aromatic sulfonic acid compounds such as benzenesulfonic acid, aromatic carboxylic acids such as benzoic acid, palmitic acid (Ga5Hj, C00H), Stearic acid (C
sriH3riC00H), araxic acid (cI?n B9
Examples include higher fatty acid carboxylic acids such as COOH), phenolic compounds such as pt-butylphenol, α-naphthol, β-naphthol, phenolphthalein, bisphenol A, 4-hydroxydiphenoxide, and 4-hydroxyacetophenone.

次に、前記酸性物質と接触して反応するAWの染料のロ
イコ体としては例えば、トリフェニルメタン系、フルオ
ラン系、フェノチアジン系、オーラミン系、スピロピラ
ン系等があり、それ等に含まれる具体的な化合物の詳細
を提示すると第1表の通りである。
Next, examples of the leuco dyes of AW that react with the acidic substance include triphenylmethane, fluoran, phenothiazine, auramine, spiropyran, etc. Details of the compounds are shown in Table 1.

本発明においてA層及びB層はいずれも単分子11り又
はその累積膜からなる層から形成されるために、前記の
発色性化合物及び助色性化合物はいずれも分子内の適当
な部位に親木基、疎水基又はその両方の基を導入した誘
導体を用いる必要がある。
In the present invention, since both the A layer and the B layer are formed from a layer consisting of a single molecule or a cumulative film thereof, the above-mentioned color-forming compound and auxochrome compound both have affinity for appropriate sites within the molecule. It is necessary to use a derivative into which a wood group, a hydrophobic group, or both groups are introduced.

疎水基及び親木基には一般に使用されるものであれば如
何なるものでも用いることができるが、特に好ましくは
疎水基としては炭素原子数5〜3゜の長鎖アルキル基、
親木基としてはカルポキシルノ^及びその金属塩(例え
ばカドミウム塩)が望ましい。
Any commonly used hydrophobic group and parent tree group can be used, but particularly preferred hydrophobic groups include long-chain alkyl groups having 5 to 3 degrees of carbon atoms;
Carpoxylno^ and its metal salts (eg, cadmium salts) are preferable as parent wood groups.

なお、A層及びB層の膜厚は200Aから101Lの範
囲が望ましく、好適には1.000人からIgの範囲で
ある。
The thickness of the A layer and the B layer is preferably in the range of 200A to 101L, preferably in the range of 1.000 to Ig.

次に1本発明における光吸収層の形成に用いられる光吸
収性物質としては赤外線を吸収する光吸収色素であれば
如何なるものでもよく、例えば赤外線を吸収して溶融す
る溶融性光吸収色素、又は赤外線を吸収して昇華する昇
華性光吸収色素も用いることができるが、特に非溶融性
色素、非昇華性色素が好適である。
Next, as the light-absorbing substance used for forming the light-absorbing layer in the present invention, any light-absorbing dye that absorbs infrared rays may be used, such as a melting light-absorbing dye that melts by absorbing infrared rays, or Sublimable light-absorbing dyes that absorb infrared rays and sublimate can also be used, but non-melting dyes and non-sublimating dyes are particularly preferred.

該かる光吸収色素の一例をあげれば、銅フタロシアニン
、バナジウムフタロシアニン等の金属フタロシアニン、
フルオレスセイン等のキサンチン系色素等がある。
Examples of such light-absorbing dyes include metal phthalocyanines such as copper phthalocyanine and vanadium phthalocyanine;
There are xanthine dyes such as fluorescein.

該光吸収層は従来の被膜方法により形成される膜であれ
ば如何なる膜でもよく、それ等の中で例えば蒸着膜、塗
布膜、浸漬膜、ラミネート等の堆111Psからなる層
が好ましい。
The light-absorbing layer may be any film formed by a conventional coating method, and among these, a layer made of 111Ps such as a vapor-deposited film, a coating film, a dipping film, a laminate, etc. is preferable.

なお、光吸収層の膜厚は90Aから1000人の範囲が
望ましく、好適には140 Aから400人の範囲であ
る。
The thickness of the light absorption layer is desirably in the range of 90 Å to 1000 Å, preferably in the range of 140 Å to 400 Å.

また、本発明において基板に使用される材料としては、
シリコン等の半導体材料、アルミ等の金属材料、好適に
は強化ガラス、更に好適にはアクリル(PMMA) 、
ポリカーポネー) (PC) 、ポリプロピレン、ポリ
塩化ビニール(pvc ) 、ポリスチレン等のプラス
チック材料、−セラミック材料が好ましい。
In addition, the materials used for the substrate in the present invention include:
Semiconductor materials such as silicon, metal materials such as aluminum, preferably tempered glass, more preferably acrylic (PMMA),
Preferred are plastic materials such as polycarbonate (PC), polypropylene, polyvinyl chloride (PVC), polystyrene, and ceramic materials.

本発明に係わる光記録素子はA層は発色性化合物の単分
子膜又はその累積膜からなる層及びB層は助色性化合物
の単分子膜又はその累積膜からなる層から構成されるこ
とを1つの特徴とするものである。
In the optical recording element according to the present invention, layer A is composed of a monomolecular film of a color-forming compound or a cumulative film thereof, and layer B is composed of a monomolecular film of an auxochrome compound or a cumulative film thereof. This is one of its characteristics.

かかる分子の高秩序性及び高配向性を有する単分子1り
又はその累積膜を作成する方法としては、例えば1.L
ang騰uirらの開発したラングミュア・プロジェッ
ト法(LB法)を用いる。ラングミュア・プロジェット
法は、例えば分子内に親木基と疎水基を有する構造の分
子において、両者のバランス(両親媒性のバランス)が
適度に保たれているとき、分子は水面上で親木基を下に
向けて単分子の層になることを利用して単分子膜または
単分子の累積1gを作成する方法である。水面上の単分
子層は二次元系の特徴をもつ0分子がまばらに散開して
いるときは、一分子当り面積Aと表面圧■との間に二次
元理想気体の式、 nA=  kT が成り立ち、“気体膜”となる、ここに、kはポルツマ
ン定数、Tは絶対温度である。Aを十分小さくすれば分
子間相互作用が強まり二次元固体の“凝縮膜(または固
体膜)Hになる。凝縮nQはプラスチック基板、ガラス
基板などの種々の材質や形状を有する担体の表面へ一層
ずつ移すことができる。
Examples of methods for producing a single molecule or a cumulative film of such molecules having high molecular order and orientation include 1. L
The Langmuir-Prodgett method (LB method) developed by Ang Teng et al. is used. The Langmuir-Prodgett method is based on the Langmuir-Prodgett method. For example, when a molecule has a parent tree group and a hydrophobic group in its molecule, and the balance between the two (balance of amphiphilicity) is maintained appropriately, the molecule will react to the parent tree on the water surface. This is a method of creating a monomolecular film or a cumulative amount of 1 g of monomolecules by making use of the fact that the monolayers are formed with the groups facing downward. When the monomolecular layer on the water surface has the characteristics of a two-dimensional system and zero molecules are sparsely dispersed, the two-dimensional ideal gas equation, nA = kT, is established between the area per molecule A and the surface pressure ■. , resulting in a "gas film", where k is Portzmann's constant and T is the absolute temperature. If A is made sufficiently small, the intermolecular interaction will be strengthened, resulting in a two-dimensional solid "condensed film (or solid film) H." It can be moved one by one.

次に本発明に使用する発色性化合物又は助色性化合物で
ある親木基、疎水基を併有する有機分子の単分子膜又は
その累積膜を形成する方法についてさらに詳述する。
Next, a method for forming a monomolecular film or a cumulative film thereof of an organic molecule having both a parent group and a hydrophobic group, which is a color-forming compound or an auxochrome compound used in the present invention, will be described in more detail.

まず該有機分子をベンゼン、クロロホルム等の揮発性溶
剤に溶解し、シリンダ等でこれを第3図に概略した単分
子環!!i膜形成装置の水槽lO内の水相11上に展開
させる。
First, the organic molecule is dissolved in a volatile solvent such as benzene or chloroform, and the monomolecular ring shown in Figure 3 is formed using a cylinder or the like. ! It is spread on the aqueous phase 11 in the water tank IO of the i-film forming apparatus.

該有機分子は、溶剤の揮発に伴って、親木基12を水相
に向け、疎水基13を気相に向けた状態で水相11上に
展開する。
As the solvent evaporates, the organic molecules develop on the water phase 11 with the parent tree groups 12 facing the water phase and the hydrophobic groups 13 facing the gas phase.

次にこの析出物(有機分子)が水相11上を自由に拡散
して広がりすぎないように仕切板(または浮子) 14
を設けて展開面積を制限して膜物質の集合状態を制御し
、その集合状態に比例した表面圧nを得る。この仕切板
14を動かし、展開面積を縮少して膜物質の集合状j6
を制御し1表面圧を徐々に上昇させ、累積膜の製造に適
する表面圧nを設定することができる。この表面圧を維
持しなから醇かに清浄な基板!4を垂直に上下させるこ
とにより単分子11i1Gが基板上に移しとられる。単
分子膜16は以上で製造されるが、単分子層累積膜17
は前記の操作を繰り返すことにより所望の累積数の単分
子層累積膜が形成される。
Next, a partition plate (or float) 14 is installed to prevent this precipitate (organic molecules) from freely diffusing and spreading too much on the aqueous phase 11.
is provided to limit the developed area and control the state of aggregation of the membrane material, thereby obtaining a surface pressure n proportional to the state of aggregation. By moving this partition plate 14, the developed area is reduced and the aggregated shape of the membrane material j6
By controlling n and gradually increasing the surface pressure n, it is possible to set a surface pressure n suitable for producing a cumulative film. By maintaining this surface pressure, the board remains extremely clean! By vertically raising and lowering 4, single molecules 11i1G are transferred onto the substrate. Although the monomolecular film 16 is manufactured in the above manner, the monomolecular layer cumulative film 17
By repeating the above operations, a desired cumulative number of monomolecular layers can be formed.

例えば表面が親水性である基板15を水面を横切る方向
く水中から引き上げると該有機分子の親木基が基板15
側に向いた単分子層16が基板15上に形成される。前
述のように基板15を上下させると。
For example, when the substrate 15 whose surface is hydrophilic is lifted out of water in a direction across the water surface, the parent wood groups of the organic molecules are removed from the substrate 15.
A side-facing monolayer 16 is formed on the substrate 15 . When the substrate 15 is moved up and down as described above.

各工程ごとに1枚ずつ単分子層18が積み重なっていく
、成膜分子の向きが引上げ工程と浸せき工程で逆になる
ので、この方法によると各層間は有機分子の親木基と親
木基、有機分子の疎水基と疎水基が向かい合ういわゆる
Y型膜が形成される(第4図(a) )。
The monomolecular layer 18 is stacked one by one in each process.The direction of the molecules formed in the film is reversed between the pulling process and the dipping process. , a so-called Y-type film is formed in which the hydrophobic groups of organic molecules face each other (Fig. 4(a)).

Y型膜は有機分子の親水基同志、疎水基同志が向い合っ
ているので強固である。
The Y-type film is strong because the hydrophilic groups and hydrophobic groups of the organic molecules face each other.

それに対し、基板15を水中に引き下げるときにのみ、
基板面に該有機分子を移し取る方法もある。
In contrast, only when lowering the substrate 15 into the water,
There is also a method of transferring the organic molecules onto the substrate surface.

この方法では、累積しても、成膜分子の向きの交代はな
く全ての層において、疎水基が基板15側に向いたX型
膜が形成される(第4図(b) ) 、反対に全ての層
において親木基が基板15側に向いた累m膜はZ型膜と
呼ばれる(第4図(c) ) 。
In this method, there is no change in the direction of the film-forming molecules even if they are accumulated, and an X-shaped film is formed in which the hydrophobic groups face the substrate 15 in all layers (Fig. 4(b)). A cumulative film in which the parent bases of all layers face the substrate 15 side is called a Z-type film (FIG. 4(c)).

Z型膜は基板15を水中から引上げるときにのみ、基板
面に有機分子を移し取ることによって得られる。
The Z-type film is obtained by transferring organic molecules onto the surface of the substrate only when the substrate 15 is lifted out of the water.

以上の方法によって基板上に形成される単分子膜及び単
分子層累積膜は高密度でしかも高度の秩序性・配向性を
有しており、これらの膜で記録層を構成することによっ
て、光熱的記録の可能な高密度で高解像度の記録Ia俺
を有する記録素子を得ることができる。また、これら成
膜方法はその原理からも分る通り、非常に簡単な方法で
あり、上記のような優れた記録機能を有する記録素子を
低コストで提供することができる。
The monomolecular film and monomolecular layer cumulative film formed on the substrate by the above method have high density and a high degree of order and orientation, and by configuring the recording layer with these films, photothermal It is possible to obtain a recording element having high-density and high-resolution recording Ia, which is capable of accurate recording. Further, as can be seen from the principles thereof, these film forming methods are very simple methods, and a recording element having the above-mentioned excellent recording function can be provided at low cost.

以上述べた、本発明における単分子膜または単分子累積
膜を形成する基板は特に限定されないが、基板表面に界
面活性物質が付着していると、単分子層を水面から移し
とる時に、単分子膜が乱れ良好な単分子膜または単分子
層累積ngができないので基板表面が清浄なものを使用
する必要がある。
The substrate on which the monomolecular film or monomolecular cumulative film in the present invention is formed as described above is not particularly limited, but if a surfactant is attached to the surface of the substrate, when the monomolecular layer is transferred from the water surface, the monomolecular Since the film is disturbed and a good monomolecular film or monomolecular layer accumulation cannot be obtained, it is necessary to use a substrate with a clean surface.

基板上の単分子膜または単分子層累積膜は、十分に強く
固定されており基板からの剥離、剥落を生じることはほ
とんどないが、付着力を強化する目的で基板と単分子膜
または単分子層累積膜の間に接着層を設けることもでき
る。さらに単分子層形成条件例えば水相の水素イオン濃
度、イオン種、水温、担体上げ下げ速度あるいは表面圧
の選択等によって付着力を強化することもできる。
The monomolecular film or monomolecular layer accumulation film on the substrate is sufficiently strongly fixed and rarely peels or peels off from the substrate. An adhesive layer can also be provided between the layer stacks. Furthermore, the adhesion force can be strengthened by selecting the monomolecular layer formation conditions, such as the hydrogen ion concentration of the aqueous phase, the ion species, the water temperature, the rate of raising and lowering the carrier, or the surface pressure.

次に、光吸収層の堆積膜の形成方法はtju記光吸光吸
収性物質インダーζ水を添加した水混和物を、ボールミ
ル等を用いて粉砕混合した後、基板等の上に従来の通常
の方法で塗着して行う。
Next, the method for forming the deposited film of the light-absorbing layer is as follows: After pulverizing and mixing the water mixture to which the light-absorbing substance Inder ζ water has been added using a ball mill or the like, the film is deposited on a substrate, etc. using the conventional conventional method. Apply by applying the method.

本発明に用いられる前記バインダーとしてはゼラチン、
でんぷんのごとき天然高分子物、硝酸繊維素、カルボキ
シメチルセルローズのごときlkl ltL素誘素体導
体化ゴム、環化ゴムのごとき天然ゴム可塑物などの半合
成高分子物、ポリイソブチレン、ポリスチロール、テル
ペン樹脂、ポリアクリル酸、ポリアクリル酸エステル、
ポリメタアクリル酸エステル、ポリアクリルニトリル、
ポリアクリルアミド、ポリ酢酸ビニル、ポリビニルアル
コール、ポリビニルピロリドン、ポリアセタール樹脂、
ポリ」1化ビニル、ポリヒニルビリシン、ポリビニルカ
ルバゾール、ポリブタジェン、ポリスチレン−ブタジェ
ン、ブチルゴム、ポリオキシメチレン、ポリエチレンイ
ミン、ポリエチレンイミンハイドロクロライド、ポリ(
2−アクリルオキシエチルジメチルスルホニウムクロラ
イド)などのごとき重合型合成高分子、フェノール樹脂
、アミノ樹脂、トルエン樹脂、アルキッド樹脂、不悠和
ポリエステル樹脂、アリル樹脂、ポリカーボネート、ポ
リアマイド樹脂、ポリエーテル樹脂、珪素樹脂、フラン
樹脂、チオコールゴムなどのごとき縮合重合型合成高分
子、ポリウレタン、ポリ尿素、エポキシ樹脂などのごと
き付加重合型樹脂が挙げられる。
The binder used in the present invention includes gelatin,
Natural polymers such as starch, semi-synthetic polymers such as natural rubber plastics such as cellulose nitrate, lkl ltl element conductive rubber such as carboxymethyl cellulose, and natural rubber plastics such as cyclized rubber, polyisobutylene, polystyrene, Terpene resin, polyacrylic acid, polyacrylic ester,
Polymethacrylic acid ester, polyacrylonitrile,
Polyacrylamide, polyvinyl acetate, polyvinyl alcohol, polyvinylpyrrolidone, polyacetal resin,
Polyvinyl monoride, polyhinyl bilysine, polyvinylcarbazole, polybutadiene, polystyrene-butadiene, butyl rubber, polyoxymethylene, polyethyleneimine, polyethyleneimine hydrochloride, poly(
Polymerizable synthetic polymers such as (2-acryloxyethyldimethylsulfonium chloride), phenolic resins, amino resins, toluene resins, alkyd resins, fuyureka polyester resins, allyl resins, polycarbonates, polyamide resins, polyether resins, silicone resins Examples include condensation polymerization type synthetic polymers such as furan resin, thiokol rubber, etc., and addition polymerization type resins such as polyurethane, polyurea, and epoxy resin.

以上に説明した方法で製造される本発明に係わる光記録
素子の構成の1例を示すと、第1図(a)に示す通り、
発色性化合物からなるA層2と助色性化合物からなる8
層4とを積層し、さらに該B層4の上に光吸収層3を設
けてなり、A層2及び8層4は単分子膜又はその累積膜
、光吸収層3は堆積膜からなる積層体で、光吸収層3を
基板1上に支持し、基板/光吸収層/B層/A層の順に
積層してなるものである。この場合A52と8層4とを
逆にして、基板/光吸収層/A層/B層の順に積層して
もよい。
An example of the structure of the optical recording element according to the present invention manufactured by the method described above is as shown in FIG. 1(a).
A layer 2 consisting of a color-forming compound and layer 8 consisting of an auxochrome compound
A layer 4 is laminated, and a light absorption layer 3 is further provided on the B layer 4, the A layers 2 and 8 layers 4 are monomolecular films or their cumulative films, and the light absorption layer 3 is a laminated film consisting of a deposited film. The light absorbing layer 3 is supported on the substrate 1 by a body, and the layers are laminated in the order of substrate/light absorbing layer/B layer/A layer. In this case, A52 and 8 layers 4 may be reversed and laminated in the order of substrate/light absorption layer/A layer/B layer.

さらに、他の例を示すと、第1図(b)に示す通り、A
層2と8層4とを積層し、さらに該A層2の上に光吸収
層3を設けて積層体を形成し、8層4を基板l上に支持
し、基板/B層/A層/光吸収層の順に積層してなるも
のである。この場合、前記と同様にA層2と8層4とを
逆にして、基板/A層/B層/光吸収層の順にB層して
もよい。
Furthermore, to show another example, as shown in FIG. 1(b), A
Layer 2 and 8 layers 4 are laminated, and a light absorption layer 3 is further provided on the A layer 2 to form a laminate, 8 layers 4 are supported on a substrate l, and the substrate/B layer/A layer is formed. /Light absorption layer is laminated in this order. In this case, similarly to the above, the A layer 2 and the 8-layer 4 may be reversed, and the B layer may be formed in the order of substrate/A layer/B layer/light absorption layer.

また、上記の第1図(a) 、 (b)に示すいずれの
構成においても前記のl1層体を2設置上積重ねて基板
に支持してもよい。
Furthermore, in any of the configurations shown in FIGS. 1(a) and 1(b), two of the above-described L1 layer bodies may be stacked and supported on the substrate.

本発明に係わる光記録素子は発色性化合物からなるA層
と助色性化合物からなるB層とを密着せしめて構成され
ているが、従来の技術ではこの様に構成することは不可
能であるとされていた。しかしながら本発明においては
A層及びB層が分子の高度の秩序性・配向性を有する単
分子nり及びその累積膜によって形成されているため、
分子内の非反応性部位を介して、反応性部位同志を隔て
ることができるために上記の構成をとることが可能とな
ったのである。
The optical recording element according to the present invention is composed of a layer A made of a color-forming compound and a layer B made of an auxochrome compound, which are brought into close contact with each other, but it is impossible to make such a structure with conventional technology. It was said that However, in the present invention, since the A layer and the B layer are formed of single molecules having a high degree of molecular order and orientation and their cumulative film,
The above configuration is possible because reactive sites can be separated from each other via non-reactive sites within the molecule.

また、本発明に係わる光記録素子はA層とB層とを密着
させて積層し、さらに光吸収層を外側に設けて構成され
ているので、赤外線照射によって光吸収層が加熱され、
その熱伝導によってA層の発色性化合物とB層の助色性
化合物とが加熱接触して発色反応が進行し、所定の位置
に発色点を形成し情報を記録することができる。
Further, since the optical recording element according to the present invention is constructed by laminating the A layer and the B layer in close contact with each other and further providing a light absorption layer on the outside, the light absorption layer is heated by infrared irradiation.
Due to the heat conduction, the color-forming compound in the A layer and the auxochrome compound in the B layer come into contact with each other under heat, and a color-forming reaction progresses, forming a color-forming point at a predetermined position so that information can be recorded.

したがって木発り」に係る光記録素子は主として光ディ
スクとして使用することができる。該光ディスクから、
情報を書き込んだり或いは読取ったりするための光ピツ
クアップの光学系を有する情報記憶装置の1例を第5図
に示す。
Therefore, the optical recording element according to the invention can be mainly used as an optical disc. From the optical disc,
FIG. 5 shows an example of an information storage device having an optical pickup optical system for writing or reading information.

該情報記憶装置は、制御回路27と光ピツクアップ光学
系からなる書き込み手段と、本発明に係わる光記録素子
と、出力回路28と光ピツクアップ光学系からなる読取
り手段とによって構成される。
The information storage device is composed of a writing means consisting of a control circuit 27 and an optical pickup optical system, an optical recording element according to the present invention, and a reading means consisting of an output circuit 28 and an optical pickup optical system.

書き込みは次のようにして行う、制御回路27は半導体
レーザ26の発振を制御する。従って、入力情報は制御
回路27及び半導体レーザ28によって光信号に変換さ
れる。光信号29は第5図に示す光ピツクアップ光学系
を通りて同期回転している光ディスク18の記録層上に
結像され、上述の発色メカニズムにより発色記録される
Writing is performed as follows. The control circuit 27 controls the oscillation of the semiconductor laser 26. Therefore, the input information is converted into an optical signal by the control circuit 27 and the semiconductor laser 28. The optical signal 29 passes through the optical pickup optical system shown in FIG. 5, forms an image on the recording layer of the optical disk 18 which is rotating synchronously, and is recorded in color by the coloring mechanism described above.

読取りは次のようにして行う、半導体レーザ26から発
する低出力の連続発振光を読取り光として使う、低出力
であるから、読取り中に発色記録が行われることはない
からである。または他の可視光用光源を読取り用光源と
して用いてもよい。
Reading is performed as follows. Low-output continuous wave light emitted from the semiconductor laser 26 is used as the reading light. Since the output is low, color recording is not performed during reading. Alternatively, another visible light source may be used as the reading light source.

該読取り用光線は光ディスクI8の基板表面に結像し反
射されるが、反射率は発色点とそうでない箇所とで異な
るから、この反射光を光ピツクアップ光学系を通してフ
ォトダイオード25の受光面にあてることにより電気信
号に変換し、再生読み出しを行う。
The reading light beam forms an image on the substrate surface of the optical disc I8 and is reflected, but since the reflectance differs between the coloring point and the non-coloring point, this reflected light is applied to the light receiving surface of the photodiode 25 through the optical pickup optical system. This converts the signal into an electrical signal and reproduces and reads it.

該かる再生信号のコントラストを上げ、画質等の向上を
図るためには、光記録素子の基板上にアルミ等の金属反
射層を付設することが好ましい。
In order to increase the contrast of the reproduced signal and improve the image quality, it is preferable to provide a reflective layer of metal such as aluminum on the substrate of the optical recording element.

金属反射層の膜厚は1.000 A〜2,000八が好
適である。その他必要に応じて誘電体ミラーでもよい。
The thickness of the metal reflective layer is preferably 1.000 Å to 2,000 Å. In addition, a dielectric mirror may be used as necessary.

更に、A層、B層、光吸収層等を保護するために最外層
の表面に保護層を設けてもよい、そのような保護層用材
料としては5i02等の誘電体、プラスチック樹脂、他
の重合性LB膜等が好適である。
Furthermore, a protective layer may be provided on the surface of the outermost layer to protect the A layer, B layer, light absorption layer, etc. Materials for such a protective layer include dielectrics such as 5i02, plastic resins, and other materials. A polymerizable LB film or the like is suitable.

[実施例] 以下、実施例を示し、本発明をさらに具体的に説明する
。尚、下記において特に記述のない限り「部」は「重量
部」を、「%」は「重量%」を表わすものとする。
[Example] Hereinafter, the present invention will be explained in more detail by showing examples. In the following, unless otherwise specified, "part" means "part by weight" and "%" means "% by weight."

合成例1(発色性化合物の合成例) クリスタルバイオレートラクトン咎二  の式(I) で示されるm−アミノ安息香酸誘導体1部と、式(I[
) H で示されるミヒラーズヒドロール1部を酸)1部を加え
て、8時間還流し、 式(1) %式% で示されるトリフェニルメタン誘導体を生成した。
Synthesis Example 1 (Synthesis Example of Color-forming Compound) One part of the m-aminobenzoic acid derivative represented by the formula (I) of crystal biolate lactone Togaji and the formula (I[
1 part of Michler's hydrol represented by ) H was added to 1 part of acid) and refluxed for 8 hours to produce a triphenylmethane derivative represented by formula (1) % formula %.

次に該生成物のトリフェニルメタン誘導体を2酸化鉛(
1部)存在下硫酸−中で3時間加熱した後、 式(IV) (OH2)、70H3 で示されるクリスタルバイオレフトラクトン誘導体を得
た。
Next, the triphenylmethane derivative of the product was converted into lead dioxide (
After heating for 3 hours in the presence of 1 part) sulfuric acid, a crystal bioleft lactone derivative represented by the formula (IV) (OH2), 70H3 was obtained.

次いで、これに苛性ソーダ水溶液を加え、環化すること
により。
Next, by adding an aqueous solution of caustic soda to this and cyclizing it.

式(V) (CH2)、7CH3 で示されるクリスタルバイオレフトラクトン誘導体0.
2部を得た。
Crystal bioleft lactone derivative represented by formula (V) (CH2), 7CH3 0.
Got 2 copies.

実施例1 (1)光吸収層の形成方法 厚さ101膳、直径180mmの円板上のガラス(ディ
スク)基板を充分に清浄にした0次に光吸収性物質であ
るバナジウムフタロシアニン7部、バインダーとしてポ
リビニルアルコール1部、水40部を混合し、さらにボ
ールミルを用いて数時間、粉砕混合し、基板上に回転塗
布して、バインダー中に分散したバナジウムフタロシア
ニンの堆積膜(膜厚0.015 #L)を形成した各試
料を得た。
Example 1 (1) Method for forming a light-absorbing layer A glass (disk) substrate on a disk with a thickness of 101 mm and a diameter of 180 mm was thoroughly cleaned, and 7 parts of vanadium phthalocyanine, which is a zero-order light-absorbing substance, and a binder were prepared. 1 part of polyvinyl alcohol and 40 parts of water were mixed together using a ball mill for several hours, and then spin-coated onto a substrate to form a deposited film of vanadium phthalocyanine dispersed in the binder (thickness: 0.015 #). Each sample forming L) was obtained.

(2)B層の形成方法 次に、前記(1)で得た各試料のガラス基板上に形成し
た光吸収層の上に、+iif述の単分子累積装置を用い
て助色性化合物であるアラキシン酸の単分子累積膜を形
成した。
(2) Method for Forming Layer B Next, on the light absorption layer formed on the glass substrate of each sample obtained in (1) above, an auxochrome compound is added using the single molecule accumulator described in +iif. A monomolecular cumulative film of araxic acid was formed.

該アラキシン酸の単分子累積膜の形成方法は、下記のよ
うに行った。・ 光吸収層を形成した基板が水面と垂直になるようにして
、基板を水中に沈めた後、アラキシン酸を濃度2XIO
−1履ol/lのクロロホルム溶液にして水面上に滴下
し単分子膜を水面上に展開する0表面圧を30dyne
/cmに設定し、速度2 cm/sinで基板を上下し
て第2表に示す各層に累積した単分子累積膜(Y型膜)
を各試料に作成した。
The method for forming the monomolecular cumulative film of alaxic acid was performed as follows.・ After submerging the substrate in water so that the substrate on which the light absorption layer was formed is perpendicular to the water surface, alexic acid was added at a concentration of 2XIO.
- 1 ol/l chloroform solution is dropped on the water surface to spread a monomolecular film on the water surface at a surface pressure of 30 dyne.
/cm, the substrate was moved up and down at a speed of 2 cm/sin, and the monomolecular cumulative film (Y-type film) was deposited on each layer shown in Table 2.
was prepared for each sample.

(3)A層の形成方法 次に、前記(2)で各試料のガラス基板上に形成したB
層の上に前述の単分子累積装置を用いて発色性化合物で
あるクリスタルバイオレットラクトン誘導体の単分子累
積膜を形成した。
(3) Formation method of A layer Next, the B layer formed on the glass substrate of each sample in (2) above.
A monomolecular cumulative film of a crystal violet lactone derivative, which is a color-forming compound, was formed on the layer using the monomolecular cumulative device described above.

該クリスタルバイオレットラクトン誘導体の単分子累積
膜の形成方法は、下記のように行った。
The method for forming a monomolecular cumulative film of the crystal violet lactone derivative was performed as follows.

光吸収層及びB層を形成した基板が水面と垂直になるよ
うにして、基板をpH4の酸性液中に沈めた後、クリス
タルバイオレフトラクトン誘導体を濃度2X10°1膳
o1/iのクロロホルム溶液にして水面上に滴下し単分
子膜を水面上に展開する0表面圧を30dyne/cm
に設定し、速度2 c+s/midで基板を上下してt
52表に示す各層に累積した単分子累積膜(Y12膜)
を各試料に作成した。
After submerging the substrate in an acidic solution of pH 4 so that the substrate on which the light absorption layer and B layer were formed is perpendicular to the water surface, the crystal bioleft lactone derivative was made into a chloroform solution with a concentration of 2 x 10 ° 1/i/i. The surface pressure is 30 dyne/cm to spread the monomolecular film on the water surface.
and move the board up and down at speed 2 c+s/mid.
Monomolecular cumulative film (Y12 film) accumulated in each layer shown in Table 52
was prepared for each sample.

(4)性能試験 上述の方法により製作された本発明に係る光記録素子と
比較例として従来の同様の構成(全てが単分子膜又はそ
の累積膜を使用しないで構t、)に係る光ディスクを第
5図に示す情報記憶装置を用いて以下の記録条件下で記
録した後、読取り再生を行うことにより両者の性能比較
を行った。
(4) Performance test An optical recording element according to the present invention manufactured by the above-mentioned method and a conventional optical disc having a similar structure (all without using a monomolecular film or a cumulative film thereof) were used as a comparative example. After recording under the following recording conditions using the information storage device shown in FIG. 5, performance was compared between the two by reading and reproducing.

(記録条件〉 半導体レーザ波長 830i量 レーザ出力  6〜9腸賀 記録周波a5MHz 光ディスクの回転数 1,800rp■以上の条件下で
読み出しをレーザ出力1mWで行い、信号/雑音比を求
めた結果を第2表に示す。
(Recording conditions) Semiconductor laser wavelength: 830i Laser output: 6 to 9 seconds Recording frequency: a5MHz Optical disk rotation speed: 1,800 rpm Read out with a laser output of 1 mW under the following conditions, and calculate the signal/noise ratio. It is shown in Table 2.

第2表の結果よりNo、1(A層及びB層が単分子膜か
らなる場合)とNo、8とを比較すると、No、lの方
が信号/雑音比においy顕著に優れることが認められる
。 No、1とNo、8はほぼ同じ11分厚であるが、
性能にこのような差異が生ずるのはNo、1の方がピン
ホール等の欠陥が少なく、かつ分子配向性が秩序正しく
保たれているためと思われる。同様に、No、2〜No
、5(A層及びB層が単分子の累積膜からなる場合)と
No、7との比較では、No、2〜No、5の方が信号
/雑音比において優れることが認められる。
From the results in Table 2, when comparing No. 1 (when the A layer and B layer are made of monomolecular films) and No. 8, it was found that No. 1 is significantly superior in signal/noise ratio. It will be done. No.1 and No.8 have almost the same thickness of 11 minutes,
This difference in performance appears to be due to the fact that No. 1 has fewer defects such as pinholes and the molecular orientation is maintained in an orderly manner. Similarly, No, 2~No
, 5 (when the A layer and B layer are composed of monomolecular cumulative films) and No. 7, it is recognized that No. 2 to No. 5 are superior in signal/noise ratio.

[発明の効果] 以上説明した様に本発明に係わる光記録素子はA層及び
B層が単分子膜又はその累J!1ff9からなる層、光
吸収層は堆積膜からなる層でで構成されてν・るので、
以下に示すような優れた効果がある。
[Effects of the Invention] As explained above, in the optical recording element according to the present invention, the A layer and the B layer are monomolecular films or a combination thereof. Since the layer consisting of 1ff9 and the light absorption layer are composed of a layer consisting of a deposited film,
It has the following excellent effects.

(1)従来の単分子膜又はその累Ja IIQを使用し
ていない光記録素子と比較して信号/雑音比が高く、記
録の信頼性を向上させることができる。
(1) The signal/noise ratio is higher than that of an optical recording element that does not use a conventional monomolecular film or its composite Ja IIQ, and recording reliability can be improved.

(2)光記録素子のピンホール等の物理的欠陥を大幅に
減少させることができる。
(2) Physical defects such as pinholes in optical recording elements can be significantly reduced.

(3)従来の光記録素子と比べて、より高密度記録が可
能である。
(3) Higher density recording is possible than with conventional optical recording elements.

(4)光記録素子の大面積化が可能である。(4) It is possible to increase the area of the optical recording element.

(5)光吸収層がA層とB層との間に介在しないために
発色効率及び忠実性が向上する。
(5) Since the light absorption layer is not interposed between the A layer and the B layer, coloring efficiency and fidelity are improved.

(6)光吸収層がA5とBeとの間に介在しないために
実質記Q層をドyくすることができ、より高密度記録が
可能である。
(6) Since the light absorption layer is not interposed between A5 and Be, the Q layer can be substantially reduced, and higher density recording is possible.

(7)光吸収性物質の中で光吸収剤としてすぐれている
が、単分子膜又はその累積膜を形成しにくい材料、又は
単分子膜又はその累積膜を形成しやすい誘導体に化学変
化(合成)することが経費上困難な材料を堆積膜に用い
ることができる利点がある。
(7) Chemical changes (synthesis) to materials that are excellent as light absorbers among light-absorbing substances but are difficult to form a monomolecular film or a cumulative film thereof, or to derivatives that are easy to form a monomolecular film or a cumulative film thereof. ) It is advantageous that materials that are difficult to produce due to costs can be used in the deposited film.

(8)積層体の一部に堆積膜を用いているので、感度が
向上し、製作の際に材料の選択の巾が広く製造が容易で
あり、又読み取りの際コントラストと非コントラストの
差がつきやすい等の光学物性上の効果がある。
(8) Since a deposited film is used in a part of the laminate, sensitivity is improved, there is a wide range of material selection during manufacturing, and manufacturing is easy, and the difference between contrast and non-contrast during reading is improved. It has effects on optical properties such as easy adhesion.

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

第1図(a)及び第1図(b)は各々本発明に係わる光
記録素子の実施態様を示す概略構成断面図、第2図(a
)〜第2図(c)は従来の光記録素子の記録プロセスを
示す説明図、第3図は単分子累積膜形成装置の概略構成
断面図、第4図(a)〜第4図(C)は単分子膜m膜の
作製工程図及び第5図は情報記憶装置のブロック図であ
る。
FIG. 1(a) and FIG. 1(b) are a schematic cross-sectional view showing an embodiment of an optical recording element according to the present invention, and FIG.
) to FIG. 2(c) are explanatory diagrams showing the recording process of a conventional optical recording element, FIG. 3 is a schematic cross-sectional view of a monomolecular cumulative film forming apparatus, and FIG. 4(a) to FIG. ) is a manufacturing process diagram of a monomolecular film m film, and FIG. 5 is a block diagram of an information storage device.

Claims (1)

【特許請求の範囲】[Claims] (1)通常無色ないし淡色の発色性化合物からなるA層
と、前記発色性化合物と接触して発色せしめる助色性化
合物からなるB層とを積層し、さらに光吸収層を設けて
なり、かつ(イ)前記A層は発色性化合物の単分子膜又
はその累積膜からなる層、 (ロ)前記B層は助色性化合物の単分子膜又はその累積
膜からなる層、 から構成されることを特徴とする光記録素子。
(1) Layer A consisting of a normally colorless or light-colored color-forming compound and layer B consisting of an auxochrome compound that develops color when in contact with the color-forming compound are laminated, and a light-absorbing layer is further provided, and (a) The A layer is composed of a monomolecular film of a color-forming compound or a cumulative film thereof; (B) The B layer is a layer composed of a monomolecular film of an auxochrome compound or a cumulative film thereof. An optical recording element characterized by:
JP59159107A 1984-07-31 1984-07-31 Optical recording element Pending JPS6137479A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP59159107A JPS6137479A (en) 1984-07-31 1984-07-31 Optical recording element
US07/233,902 US4933221A (en) 1984-07-31 1988-08-17 Optical recording device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59159107A JPS6137479A (en) 1984-07-31 1984-07-31 Optical recording element

Publications (1)

Publication Number Publication Date
JPS6137479A true JPS6137479A (en) 1986-02-22

Family

ID=15686395

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59159107A Pending JPS6137479A (en) 1984-07-31 1984-07-31 Optical recording element

Country Status (1)

Country Link
JP (1) JPS6137479A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6432098A (en) * 1987-07-27 1989-02-02 Hitachi Ltd Compressor inflow device
US5368150A (en) * 1992-06-12 1994-11-29 Toyoda Koki Kabushiki Kaisha Pallet exchange apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6432098A (en) * 1987-07-27 1989-02-02 Hitachi Ltd Compressor inflow device
US5368150A (en) * 1992-06-12 1994-11-29 Toyoda Koki Kabushiki Kaisha Pallet exchange apparatus

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