WO1988009958A1 - Optical recording material - Google Patents

Optical recording material Download PDF

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Publication number
WO1988009958A1
WO1988009958A1 PCT/JP1987/000373 JP8700373W WO8809958A1 WO 1988009958 A1 WO1988009958 A1 WO 1988009958A1 JP 8700373 W JP8700373 W JP 8700373W WO 8809958 A1 WO8809958 A1 WO 8809958A1
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WO
WIPO (PCT)
Prior art keywords
optical recording
recording material
electron
substituent
light absorption
Prior art date
Application number
PCT/JP1987/000373
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French (fr)
Japanese (ja)
Inventor
Motomu Yoshimura
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
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Publication date
Priority to JP61008316A priority Critical patent/JPH0621931B2/en
Application filed by Mitsubishi Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to DE3790966A priority patent/DE3790966C2/en
Priority to PCT/JP1987/000373 priority patent/WO1988009958A1/en
Priority to DE873790966T priority patent/DE3790966T1/en
Publication of WO1988009958A1 publication Critical patent/WO1988009958A1/en
Priority to US08/290,010 priority patent/US5910393A/en

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    • 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

Definitions

  • the present invention relates to an optical recording material, and more particularly, to an optical recording material using a phage reaction (hereinafter referred to as PHB reaction). .
  • FIG. 1 is an explanatory view showing an optical recording apparatus using a conventional optical recording material that performs a PB reaction
  • FIG. 2 is a graph showing the relationship between the wavelength and the absorbance of the optical recording material.
  • (1) is an optical recording material that undergoes a PHB reaction and has a light absorption band at a specific wavelength of Ai to An as shown in FIG.
  • the laser light has a wavelength distribution of less than the specific light absorption bandwidth ⁇ of the optical recording material (1).
  • the range is within ⁇ ⁇ . (Is a signal detector.
  • the absorption band of the optical recording material using such a PHB reaction coincides with the emission band of the semiconductor laser, but it is efficient to have an absorption band that coincides with the wavelength range of the semiconductor laser in a relatively long wavelength region.
  • Optical recording materials have not been found so far.
  • the present invention has been made to solve the above-described problems, and obtains an optical recording material that causes a PHB reaction with a semiconductor laser beam by increasing the light absorption wavelength range of an optical recording material. It is for this purpose.
  • the optical recording material of the present invention has a unique light absorption wavelength range, and by absorbing light in the absorption wavelength range, the light absorption spectrum characteristic changes before and after light absorption.
  • An optical recording medium is used in which at least one substituent having an electron system, one having an electron donating property, and one having an electron accepting property is used as a substituent of a molecule of a recording medium having a property of recording information. This is a longer wavelength region of the light absorption spectrum.
  • the absorption band of a naphthoquinone-based dye derivative to which quinizarine, which causes the PHB reaction efficiently, belongs is extended to the wavelength range of a semiconductor laser.
  • a semiconductor laser can be used as a light source for optical recording.
  • the longer wavelength of the light absorption band of the recording medium can be achieved by increasing the conjugation of the 7-electron system to the naphthoquinone-type basic skeleton of the dye in the recording medium. This is performed by providing a substituent or a substituent having an electron donating or accepting property.
  • the naphthoquinone basic skeleton is composed of an aromatic molecular system, and as a substituent, an electron which is conjugated to the electron system in the naphthoquinone group ⁇ skeleton. If one has a system, the electron system in the kitoquinone basic skeleton will also be conjugated to the electron system of the substituent, and the absorption spectrum of the dye will be longer at the longer wavelength side. Shift to In addition, if a substituent having a property of donating turtles or a substituent having a property of accepting a child is added, intramolecular charge transfer occurs in the dye molecule itself, and the absorption spectrum of the dye molecule becomes Shift to longer wavelength side.
  • the substituent having the ⁇ electron system, and the substituent having the electron donating property and the substituent having the electron accepting property have an effect of effectively shifting the absorption spectrum of the dye molecule to the longer wavelength side.
  • the effect is also synergistic with each other, the absorption of the dye is reduced by simultaneously providing the electron-based substituent and the electron-donating or electron-accepting substituent. Increasing the wavelength of the cuttle will be further promoted.
  • the dye causes a PHB reaction, Chi sac substituents under Symbol molecular structure (I), a combination of 3 ⁇ 4, Or, Chi sac combination of X 5 and X s,
  • at least one combination of the substituents must contain one of an NH bond and a —OH bond, but preferably It is preferable that at least the two substituents in the combination of one force both contain one force of one NH bond and one bond of 10 H bond.
  • FIG. 1 is a configuration diagram showing a general optical recording apparatus using the same type of optical recording material as the present invention
  • FIG. 2 is a light absorption spectrum of the same type of optical recording material as the present invention
  • FIG. 3 is a diagram showing light absorption spectrum characteristics after performing PHB optical recording with an optical recording material of the same type as that of the present invention.
  • the peak of the absorption spectrum of the next bone-only kinizarin (conventional) is about 510 nm.
  • C is an alkyl group or an alkoxy group
  • R 3 is an alkyl group or an alkoxy group
  • X! Is a substituent of the molecular structure (I). A strong electron donating NH 2 group is added to ⁇ and 3 ⁇ 4, and the ability to cause a PHB reaction is given. X 2 has a strong electron accepting C 20 group. X 3 is conjugated to an electron system with a naphthoquinone skeleton
  • a naphthoquinone derivative (N 4) is obtained by using a substituent having a C 20 -group (imino-like group) and converting them into an electron-donating imido-like bond.
  • the peak of the absorption spectrum of the substance itself has been extended to a wavelength of more than 670 nm.
  • R 4 and R 5 are alkyl groups or anoreoxy groups
  • a molecule of a recording medium which has a strong electron-donating -NH 2 group as a substituent of the molecular structure (I) and has a property of recording information by changing the property of causing a PHB reaction. At least one of those having an electron system, having an electron donating property, and having an electron accepting property is used as a substituent of the optical recording medium. Since the wavelength range of the semiconductor laser is made longer, it is possible to approach the oscillation wavelength range of the semiconductor laser, and it is possible to obtain a PHB optical recording material that can use a semiconductor laser as a writing laser.

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  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

This invention relates to a recording medium having a characteristic absorption wavelength band and properties such that its absorption spectral characteristics change before and after light absorption upon absorbing light in this absorption wavelength band for recording information. In order to render the wavelength band of this absorption spectrum a long wavelength one, the optical recording material of the invention uses at least one kind of substituents of molecules, one having a pi electron system, one having an electron donor property, and one having an electron acceptor property. Such an optical recording material can be utilized for memory of a computer system, or the like.

Description

明 細 書  Specification
〔発明の名称〕  [Title of Invention]
光記録材料 - 〔 技術分野〕  Optical recording materials-[Technical field]
この発明は光記録材料に関する ものであ り 、 さ らに詳 し く い う と 、 フ才 トケ ミ カルホールノ 一 二 ング反応 （ 以 下 P H B反応と称す） を用いた光記録 料に関する もの で め な 。  The present invention relates to an optical recording material, and more particularly, to an optical recording material using a phage reaction (hereinafter referred to as PHB reaction). .
〔 背景技術〕  [Background technology]
第 1 図は従来の P H B反応を行な う光記録材料を用い た光記録装置を示す説明図であ り 、 第 2図は光記録材料 の波長と吸光度の関係を示すグラ フである。 図において FIG. 1 is an explanatory view showing an optical recording apparatus using a conventional optical recording material that performs a PB reaction, and FIG. 2 is a graph showing the relationship between the wavelength and the absorbance of the optical recording material. In the figure
(1)は P H B反応を行な う光記録材料で、 第 2 図に示すよ う な Ai〜Anの固有な波長において光吸収帯を有している。 (1) is an optical recording material that undergoes a PHB reaction and has a light absorption band at a specific wavelength of Ai to An as shown in FIG.
(2)はレ ーザ光発振器、 （3)はレ ーザ光発振器よ り 出力され る レーザ光で、 光記録材料（1)の固有な光吸収帯幅 Αη以下 の波長分布を持ち、 波長域が 〜Αηのう ちにある。 （ は 信号検出器である。 (2) is a laser light oscillator, and ( 3 ) is a laser beam output from the laser light oscillator. The laser light has a wavelength distribution of less than the specific light absorption bandwidth Αη of the optical recording material (1). The range is within ~ Αη. (Is a signal detector.
次に動作について説明する。 光記録材料（1)にレーザ光 Next, the operation will be described. Laser light on optical recording material (1)
(3)を照射すると、 光記録材料（1)の中の固有な波長にある 光吸収帯のう ち、 照射された レーザ光（3)の波長域の光吸 収帯が欠除せられる。 この光吸収帯の波長の有無を 0. 1 のバイ ナ リ コー ドと して用いる こ とによ り 、 第 3図のよ う な波長次元での信号が得られる。 一般に、 ； P H B反応を用いた光記録材料（l)の中の固有 な波長に存在する光吸収帯は 103個程度存在し、 その結 果単位面積当 りの光記録密度は従来の光記録方式の 103 倍即ち、 l O H b i t Z CTの高密度化が可能となる。 When (3) is irradiated, the light absorption band in the wavelength region of the irradiated laser beam ( 3 ) is lost among the light absorption bands at the specific wavelength in the optical recording material (1). By using the presence or absence of the wavelength of this light absorption band as a binary code of 0.1, a signal with a wavelength dimension as shown in FIG. 3 can be obtained. Generally,; light absorption band existing in specific wavelength in the optical recording material using PHB reaction (l) is present about 10 3, As a result the unit area equivalent Rinohikari recording density conventional optical recording 10 3 times the system in other words, it is possible to density of l OH bit Z CT.
このよ う な P H B反応を用いた光記録材料の吸収帯域 が半導体レーザの発光帯域と一致することが好ましいが、 比較的長波長域の半導体レーザ波長域と一致した吸収帯 域を有する効率の良い光記録材料はこれまでのと こ ろ見 い出 されていない。  It is preferable that the absorption band of the optical recording material using such a PHB reaction coincides with the emission band of the semiconductor laser, but it is efficient to have an absorption band that coincides with the wavelength range of the semiconductor laser in a relatively long wavelength region. Optical recording materials have not been found so far.
〔 発明の開示〕  [Disclosure of the Invention]
この発明は、 上記のよ う な問題点を解決するためにな された もので、 光記録村料の光吸収波長域を長波長化し て半導体レーザ光で P H B反応を起こす光記録材料を得 る こ とを目的とする。  The present invention has been made to solve the above-described problems, and obtains an optical recording material that causes a PHB reaction with a semiconductor laser beam by increasing the light absorption wavelength range of an optical recording material. It is for this purpose.
この発明の光記録材料は固有の光吸収波長域を有し、 当該吸収波長域の光を吸収するこ とによ り 、 光の吸収の 前後で光吸収ス ぺ ク ト ル特性が変化して情報を記録する 性質を有する記録体の分子の置換基として、 電子系を 有した もの、 電子供与性を有したも の、 電子受容性を有 したものを少なく と も 1種用い光記録体の光吸収ス ぺ ク トルの波長域を長波長化した ものである。  The optical recording material of the present invention has a unique light absorption wavelength range, and by absorbing light in the absorption wavelength range, the light absorption spectrum characteristic changes before and after light absorption. An optical recording medium is used in which at least one substituent having an electron system, one having an electron donating property, and one having an electron accepting property is used as a substituent of a molecule of a recording medium having a property of recording information. This is a longer wavelength region of the light absorption spectrum.
具体的には、 記録媒体と して、 P H B反応を効率よ く 起こすキ二ザリ ンが属するナ フ トキノ ン系色素誘導体の 吸収帯域を半^体レーザの発振域にまで長波長化し、 そ れを P H B反応を用いた光記録材料に用いる こ と に よ り 、 光記録の光源と して半導体レーザを使えるよ う に した も のである。 Specifically, as a recording medium, the absorption band of a naphthoquinone-based dye derivative to which quinizarine, which causes the PHB reaction efficiently, belongs is extended to the wavelength range of a semiconductor laser. By using this as an optical recording material using the PHB reaction, a semiconductor laser can be used as a light source for optical recording.
このよ う にした こ と によ り 記録媒体の光吸収帯域の長 波長化は、 記録媒体中の例えば色素のナフ ト キ ノ ン型の 基本骨格に 7Γ 電子系の共役性を増す構造を も つ置換基ま たは、 電子を供与した り 、 あるいは受容する性質を有す る置換基を付与する こ とに よ り 行われる。  With this configuration, the longer wavelength of the light absorption band of the recording medium can be achieved by increasing the conjugation of the 7-electron system to the naphthoquinone-type basic skeleton of the dye in the recording medium. This is performed by providing a substituent or a substituent having an electron donating or accepting property.
即ち、 ナ フ ト キ ノ ン基本骨格は、 芳香族性の ¾子系 よ り なつてお り 、 置換基と して、 ナフ ト キ ノ ン基^骨格 中の 電子系と共役し う る 電子系を有する も のを選べ ば、 キ フ ト キ ノ ン基本骨格中の 電子系は、 置換基の 電子系と も共役する こ と にな り 、 色素の吸収スぺ ク トル は、 長波長側にシフ トする。 さ らに、 亀子を供与する性 質あるいは、 《子を受容する性質を有する置換基を付与 してやれば、 色素分子自身に分子内電荷移動が起こ り 、 色素分子の吸収ス ぺ ク ト ルは、 長波長側に シ フ トする。  That is, the naphthoquinone basic skeleton is composed of an aromatic molecular system, and as a substituent, an electron which is conjugated to the electron system in the naphthoquinone group ^ skeleton. If one has a system, the electron system in the kitoquinone basic skeleton will also be conjugated to the electron system of the substituent, and the absorption spectrum of the dye will be longer at the longer wavelength side. Shift to In addition, if a substituent having a property of donating turtles or a substituent having a property of accepting a child is added, intramolecular charge transfer occurs in the dye molecule itself, and the absorption spectrum of the dye molecule becomes Shift to longer wavelength side.
こ のよ う に、 ^ 電子系を有する置換基と 、 電子供与性 の置換基および電子受容性の置換基は、 色素分子の吸収 スぺク トルを長波長側に有効に シフ ト させる効果を も つ がその効果は、 互いに相乗的で も あるため、 電子系の 置換基と ¾子供与性の置換基または電子受容性の置換基 と を同時に付与する こ と によ り 色素の吸収スぺ ク ト ルの 長波長化はよ り捉進される。 また、 具体的に、 色素が P H B反応を起こすには、 下 記の分子構造 (I)の置換基のう ち、 と¾の組合せ、 ある いは、 X5と Xsの組合せのう ち、 少なく と も 1 つの組合せ のう ち、 少なく と も 1 つの組合せの置換基が、 一； N H結 -合および— 0 H結合のどち らか一方を含んでいなければ な らないが、 好ましく は、 少なく と も どち ら力 1方の組 合せの 2つの置換基が共に、 一 N .H結合およ び一 0 H結 合のどち ら力 1方を含んでいるのが好ましい。 As described above, the substituent having the ^ electron system, and the substituent having the electron donating property and the substituent having the electron accepting property have an effect of effectively shifting the absorption spectrum of the dye molecule to the longer wavelength side. However, since the effect is also synergistic with each other, the absorption of the dye is reduced by simultaneously providing the electron-based substituent and the electron-donating or electron-accepting substituent. Increasing the wavelength of the cuttle will be further promoted. Further, specifically, the dye causes a PHB reaction, Chi sac substituents under Symbol molecular structure (I), a combination of ¾, Or, Chi sac combination of X 5 and X s, In at least one combination, at least one combination of the substituents must contain one of an NH bond and a —OH bond, but preferably It is preferable that at least the two substituents in the combination of one force both contain one force of one NH bond and one bond of 10 H bond.
分子構造 (I) 7 Xi  Molecular structure (I) 7 Xi
こ こで Xは置換基である
Figure imgf000006_0001
Where X is a substituent
Figure imgf000006_0001
〔図面の簡単な説明〕 [Brief description of drawings]
第 1 図は、 この発明と同種類の光記録材料を用いた一 般的な光記録装置を示す構成図、 第 2図は、 この発明と 同種類の光記録材料の光吸収ス ぺ ク ト ル特性を示す図、 第 3図は、 この発明と同種類の光記録材料による P H B 光記録を行った後の光吸収スぺク トル特性を示す図であ る  FIG. 1 is a configuration diagram showing a general optical recording apparatus using the same type of optical recording material as the present invention, and FIG. 2 is a light absorption spectrum of the same type of optical recording material as the present invention. FIG. 3 is a diagram showing light absorption spectrum characteristics after performing PHB optical recording with an optical recording material of the same type as that of the present invention.
〔発明を実施する為の最良の形態〕  [Best mode for carrying out the invention]
実施例 1  Example 1
分子構造 (I)の置換基として x4と x8に電子供与性の強いStrong electron-donating properties for x 4 and x 8 as substituents of molecular structure (I)
- N ¾基 （ ァ ミ ノ基） を付与し、 かつ Xiと X5に一 0 H基 ( ヒ ドロキ シ基 ） を用いて、 P H B反応を起こす能力を 持たせる と と も 、 X2 と し て ¾子系を有する と共に ¾子 供与性のア ルキル基 （— CH3) と アル コ キ シ基 （ 一 OC2 H4 - N ¾ group grants (§ Mi amino group), and Xi and X 5 to one 0 H group (Hydroxy group) is used to give the ability to cause PHB reaction, and X 2 has a molecular system and also has an electron donating alkyl group (—CH 3 ) and an alkoxy group. Shi group (one OC 2 H 4
OC6H13) を有する フエニル誘導体基を付与したナ フ トキ ノ ン誘導体 （N1 ) を得た と こ ろ、 その も のの吸収スぺク ト ルの ピークは 645 nm以上にまで長波長化した。 When a naphthoquinone derivative (N1) having a phenyl derivative group having OC 6 H 13 ) was obtained, the absorption spectrum peak of the naphthoquinone derivative was extended to 645 nm or more. did.
Figure imgf000007_0001
Figure imgf000007_0001
OH 0 H2 OH 0 H 2
なお次の骨 だけのキニザリ ン （従来 ） の吸収ス ぺ ク ト ルの ピークは 510 n m 程度であ，る。  The peak of the absorption spectrum of the next bone-only kinizarin (conventional) is about 510 nm.
0 OH
Figure imgf000007_0002
0 OH
Figure imgf000007_0002
実施例 2 Example 2
分子構造（I)の置換基と して、 と χ4に ¾子供与性の強 い— NH2基を付与し、 かつ、 P H B反応を起こす能力を持 たせる と と も に、 X2と X3に電子受容性の強い 〉C = 0基 ( カルポニル基 ） を共に用い、 さ らには 2 つのカルボ二 ル基を ¾子供与性である ィ ミ ド結合にしたナ フ トキノ ン 誘導体 （N2) を得た と こ ろ、 その も のの吸収スペク トル の ピーク は、 680nm 以上にまで長波長化した。 一 R5 C N 2 )
Figure imgf000008_0001
As a substituent of the molecular structure (I), and chi 4 to ¾ children given of strong - Grant NH 2 group, and also with the Taseru lifting the ability to undergo PHB reaction, X 2 and X A naphthoquinone derivative (N2), which uses both〉 C = 0 groups (carbonyl groups) with strong electron-accepting properties, and further converts two carbonyl groups into imido-bonding electron-donating groups. ), The peak of the absorption spectrum of the sample was extended to a wavelength of 680 nm or more. (1 R 5 CN 2)
Figure imgf000008_0001
C はアルキル基あるいは アルコキシ基 ）  C is an alkyl group or an alkoxy group)
実施例 s Example s
分子構造 (I)の置換基と して、 と x4に、 電子供与性の 強い— NH2基を付与し、 かつ、 P H B反応を起こす能力を 持たせる と と も に、 X2と X3に電子受容性の強い C 二 0 基と、 C = S基 （； チォカルボ二ル基） と をそれぞれ用 い、 さ ら には、 それ ら を ¾子供与性であるイ ミ ド類似結 合にしたナフ トキノ ン誘導体 （N 3 ) を得た とて ろ、 その も のの吸収スぺク トルの ピーク は、 76 0 nm以上にまで長 波長化した。 As a substituent of the molecular structure (I), and the x 4, electron-donating strong - to impart NH 2 group, and also when to have the ability to undergo PHB reaction, X 2 and X 3 In addition, a C 20 group having a strong electron accepting property and a C = S group (; a thiocarbyl group) are used, respectively, and they are further converted into an electron-donating imid-like bond. When the obtained naphthoquinone derivative (N 3) was obtained, the peak of the absorption spectrum of the naphthoquinone derivative (N 3) was shifted to 760 nm or longer.
Figure imgf000008_0002
Figure imgf000008_0002
( R3はアルキル基あるいは アルコキシ基 ） (R 3 is an alkyl group or an alkoxy group)
実施例 4 Example 4
分子構造 (I)の置換基と して、 X！と ¾に電子供与性の強 い一 NH2 基を付与し、 かつ、 P H B反応を起こす能力を 持たせる と と もに、 X2には電子受容性の強い C 二 0基 を、 X3にはナ フ ト キノ ン骨格の 電子系と共役し う るX! Is a substituent of the molecular structure (I). A strong electron donating NH 2 group is added to を and ¾, and the ability to cause a PHB reaction is given. X 2 has a strong electron accepting C 20 group. X 3 is conjugated to an electron system with a naphthoquinone skeleton
>C 二 Ν -基 （ ィ ミ ノ類似基 ） を有する置換基を用い、 かつ、 それ ら を電子供与性である イ ミ ド類似結合に した ナ フ ト キ ノ ン誘導体 （N 4 ) を得た と こ ろその も のの吸収 スぺク ト ルの ピークは 6 7 0 nm 以上にまで長波長化した > A naphthoquinone derivative (N 4) is obtained by using a substituent having a C 20 -group (imino-like group) and converting them into an electron-donating imido-like bond. However, the peak of the absorption spectrum of the substance itself has been extended to a wavelength of more than 670 nm.
R, C N 4 )
Figure imgf000009_0001
R, CN 4)
Figure imgf000009_0001
. ( R4 と R5はアルキル基あ る いは ァノレコ キ シ基 ） (R 4 and R 5 are alkyl groups or anoreoxy groups)
実施例 5  Example 5
分子構造 (I)の置換基と して ¾ と に ¾子供与性の強い -NH2 基 を付与し、 かつ、 P H B反応を起こす特性が変 化して情報を記録する性質を有する記録体の分子の置換 基と して、 電子系を有した も の、 電子供与性を有した も の、 電子受容性を有した も のを少な く と も 1 種用い光 記録体の光吸収スぺク ト ルの波長域を長波長化したので 半導体レーザの発振波長域に近づける こ とがで き、 半導 体レーザを書込み用 レーザに用い得る P H B光記録材料 を得る こ とができ る。 A molecule of a recording medium which has a strong electron-donating -NH 2 group as a substituent of the molecular structure (I) and has a property of recording information by changing the property of causing a PHB reaction. At least one of those having an electron system, having an electron donating property, and having an electron accepting property is used as a substituent of the optical recording medium. Since the wavelength range of the semiconductor laser is made longer, it is possible to approach the oscillation wavelength range of the semiconductor laser, and it is possible to obtain a PHB optical recording material that can use a semiconductor laser as a writing laser.
〔 産業上の利用可能性〕  [Industrial applicability]
こ の発明はコ ン ピュータ シス テム等のメ モ リ に利用可 gfe t め o 0 This aspect of the present invention is accessible to Note Li such as co-down computer systems gfe t Me o 0

Claims

請 求 の 範 囲 The scope of the claims
(1) 固有の光吸収波長域を有し、 この光吸収波長域を光 を吸収することによ り 、 光の吸収の前後で光吸収ス ぺ ク トル特性が変化して情報を記録する性質を有する記録体 を構成する分子の置換基として、 電子系を有した もの、 «子供与性を有したもの、 又は《子受容性を有した もの を少なく と も 1種用いることによ り上記光記録体の光吸 収スぺク 卜ルの波長域を長波長化したこ とを特徴とする 光記録材料。  (1) A property of recording information by having a unique light absorption wavelength range, and by absorbing light in this light absorption wavelength range, the light absorption spectrum characteristic changes before and after light absorption. By using at least one kind of a substituent having an electron system, a donor having a donor or a donor having a donor as a substituent of a molecule constituting a recording medium having An optical recording material characterized in that the wavelength range of the light absorption spectrum of the optical recording medium is extended.
(2) 光記録体として、 キノ ン骨格を有する以下の分子構 造で示される分子を用いることを特 とする特許請求の 範囲第 1項記載の光記録材料。  (2) The optical recording material according to claim 1, wherein a molecule represented by the following molecular structure having a quinone skeleton is used as the optical recording medium.
X8 0 XX 8 0 X
χ2 χ 2
こ こで Xは置換基である。  Here, X is a substituent.
x3 x 3
Figure imgf000010_0001
Figure imgf000010_0001
χ5 ο χ4 χ 5 ο χ 4
(3) 光記録体の置換基 と x4の組合せ及び χ5と x8の組合 せの少なく と も一方の組合せの 2つの置換基が共に、(3) two of the substituents least also one combination of allowed combination of optical recording of substituents and x 4 combinations and chi 5 and x 8 are both
- H 結合および一 O H 結合のう ちのいずれかであるこ とを特徵とする特許請求の範囲第 1項又は第 2項記載の 光記録材料。 3. The optical recording material according to claim 1, wherein the optical recording material is one of an H bond and a one-OH bond.
PCT/JP1987/000373 1986-01-17 1987-06-10 Optical recording material WO1988009958A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP61008316A JPH0621931B2 (en) 1986-01-17 1986-01-17 Optical recording material
DE3790966A DE3790966C2 (en) 1986-01-17 1987-06-10 Optical recording material
PCT/JP1987/000373 WO1988009958A1 (en) 1986-01-17 1987-06-10 Optical recording material
DE873790966T DE3790966T1 (en) 1986-01-17 1987-06-10 OPTICAL RECORDING MATERIAL
US08/290,010 US5910393A (en) 1987-06-10 1994-08-12 Optical recording material

Applications Claiming Priority (2)

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JP61008316A JPH0621931B2 (en) 1986-01-17 1986-01-17 Optical recording material
PCT/JP1987/000373 WO1988009958A1 (en) 1986-01-17 1987-06-10 Optical recording material

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JP2614040B2 (en) * 1986-10-20 1997-05-28 キヤノン株式会社 Optical recording medium
DE19732065A1 (en) * 1997-07-25 1999-01-28 Harm Drecoll Information storage on a storage medium
JP6654515B2 (en) * 2016-06-15 2020-02-26 日本化薬株式会社 Infrared shielding sheet, interlayer for infrared shielding laminated glass, infrared shielding laminated glass and method for producing the same

Citations (1)

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JPS6132051A (en) * 1984-07-23 1986-02-14 Nippon Telegr & Teleph Corp <Ntt> Wavelength selecting optical storage material

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US4666819A (en) * 1985-03-11 1987-05-19 Minnesota Mining And Manufacturing Company Optical information storage based on polymeric dyes

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6132051A (en) * 1984-07-23 1986-02-14 Nippon Telegr & Teleph Corp <Ntt> Wavelength selecting optical storage material

Non-Patent Citations (2)

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Title
NIHON SHASHIN GAKKAI-SHI, Vol. 49, No. 5, May 1986, SHIMIZU NAOKI, "Laser Komitsudo Kiroku Zairyo", pages 383-387. *
NIHON SHIKISAI GAKKAI-HEN, "Shin-Hen Shikisai Kagaku Handbook", 25 February 1980, Tokyo Daigaku Shuppankai, pages 654-655. *

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JPS62165646A (en) 1987-07-22
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