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DE1290977B - Storage material for recording high-frequency signals - Google Patents

Storage material for recording high-frequency signals

Info

Publication number
DE1290977B
DE1290977B DE1967T0034375 DET0034375A DE1290977B DE 1290977 B DE1290977 B DE 1290977B DE 1967T0034375 DE1967T0034375 DE 1967T0034375 DE T0034375 A DET0034375 A DE T0034375A DE 1290977 B DE1290977 B DE 1290977B
Authority
DE
Germany
Prior art keywords
storage material
frequency signals
recording high
recording
spiropyrans
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
DE1967T0034375
Other languages
German (de)
Inventor
Arnold
Dr Cajetan
Dipl-Phys Guenther
Dipl-Ing Hans-Peter
Halfar Kurt
Schiele
Vollmer
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.)
Telefunken Patentverwertungs GmbH
Original Assignee
Telefunken Patentverwertungs GmbH
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 Telefunken Patentverwertungs GmbH filed Critical Telefunken Patentverwertungs GmbH
Priority to DE1967T0034375 priority Critical patent/DE1290977B/en
Publication of DE1290977B publication Critical patent/DE1290977B/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/685Compositions containing spiro-condensed pyran compounds or derivatives thereof, as photosensitive substances

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)

Description

Die Erfindung betrifft ein Speichermaterial zur Aufzeichnung hochfrequenter Signale durch Umfärbung von Spiropyranen unter Lichteinstrahlung.The invention relates to a storage material for high-frequency recording Signals from the color change of spiropyrans when exposed to light.

Es ist bekannt, die Verfärbbarkeit von Spiropyranen zur Aufzeichnung von Daten auszunutzen. Die Daten liegen im allgemeinen in Form hochfrequenter Signale vor. So ist in der deutschen Patentschrift 1082 119 eine strahlungsempfindliche Schicht für Datenspeichervorrichtungen beschrieben, die ein Spiropyran in gelöster Form innerhalb eines durchsichtigen filmbildenden Stoffes enthält.It is known to take advantage of the discolourability of spiropyrans to record data. The data is generally in the form of high frequency signals. For example, German patent specification 1082 119 describes a radiation-sensitive layer for data storage devices which contains a spiropyran in dissolved form within a transparent film-forming substance.

Es ist auch vorgeschlagen worden, zur Vermeidung des der in der genannten Patentschrift beschriebenen Erfindung anhaftenden Nachteils, daß eine reversible Verfärbung vorliegt, die eine nur vorübergehende Datenspeicherung erlaubt bzw. aufwendige Maßnahmen z -,:i- Sicherung der Aufzeichnung erfordert, die Speichc:schicht so abzuwandeln, daß die Umfärbung irreversibel und damit dauerhaft wird. Dies kann dadurch erreicht werden, daß das Speichermaterial einen Zusatz aus durch die aufzeichnenden Strahlen in Radikale aufspaltbare Substanzen enthält.It has also been suggested to avoid the one mentioned in that Patent described invention inherent disadvantage that a reversible There is discoloration that allows only temporary data storage or is expensive Measures z- ,: i- Securing the recording requires modifying the storage layer so that that the color change becomes irreversible and therefore permanent. This can be achieved thereby that the storage material has an additive made by the recording rays Contains substances that can be broken down into radicals.

Bei dem genannten Aufzeichnungsverfahren sind verhältnismäßig energiereiche Strahlen erforderlich; beispielsweise ist bei der Aufzeichnung durch Lichtstrahlen ein Wellenlängenbereich unterhalb 300 m#t einzuhalten, wenn die Einwirkungsdauer der Strahlen auf die Speicherschicht im Hinblick auf die anzustrebende hohe Aufzeichnungsgeschwindigkeit klein gehalten werden soll.In the case of the recording process mentioned, they are relatively high in energy Rays required; for example, when recording by light rays a wavelength range below 300 m # t must be observed if the duration of exposure of the rays on the storage layer in view of the high recording speed to be aimed for should be kept small.

Der Erfindung liegt die Aufgabe zugrunde, die Schicht zu sensibilisieren, um auch mit energieärmeren Lichtstrahlen, z. B. mit Wellenlängen über 300 m#t, bei kurzer Einwirkungsdauer eine intensive Verfärbung zu erhalten.The invention is based on the object of sensitizing the layer in order to be able to use even lower-energy light beams, e.g. B. with wavelengths over 300 m # t, at short exposure time to obtain an intense discoloration.

Die Erfindung besteht bei einem Speichermaterial zur Aufzeichnung hochfrequenter Signale durch Umfärbung von Spiropyranen unter Lichteinstrahlung darin, daß das Speichermaterial zusätzlich Diphenylamin, vorzugsweise in einer Konzentration von SO- bis 2 , enthält.In the case of a storage material for recording high-frequency signals by changing the color of spiropyrans under irradiation with light, the invention consists in that the storage material additionally contains diphenylamine, preferably in a concentration of SO 2 to 2.

Im folgenden soll kurz auf das verwendete Speichermaterial eingegangen werden sowie eine Deutung des Sensibilisierungsprozesses durch den erfindungsgemäßen Zusatz gegeben werden. Der Aufbau des erfindungsgemäßen Speichermaterials kann in Form eines Filmes erfolgen, der auf einem zweckmäßigerweise durchsichtigen Träger aufgebracht wird. Als Trägermaterial können starre, transparente, anorganische Materialien, wie z. B. Glas, oder starre, transparente, organische Materialien, wie z. B. Plexiglas, sowie alle hinreichend schmiegsamen Kunststoffe zur Anwendung gelangen. Das filmartig aufgebaute Speichermaterial besteht aus einem Bindemittel, in das das Spiropyran und seine Zusätze eingebettet sind. Als Spiropyrane können unter anderem eingesetzt werden: Spirodibenzopyrane der allgemeinen Formel Spirodinaphthopyrane der allgemeinen Formel Spirotrimethylindolinobenzopyrane der allgemeinen Formel Spirotrimethylindolinonaphthopyrane der allgemeinen Formel deren Herstellung im Prinzip bekannt ist. In the following, the storage material used will be briefly discussed and an explanation of the sensitization process through the additive according to the invention will be given. The storage material according to the invention can be built up in the form of a film which is applied to an expediently transparent carrier. As a carrier material, rigid, transparent, inorganic materials, such as. B. glass, or rigid, transparent, organic materials, such as. B. Plexiglas, as well as all sufficiently pliable plastics are used. The film-like structure of the storage material consists of a binding agent in which the spiropyran and its additives are embedded. The following spiropyrans can be used, inter alia: Spirodibenzopyrans of the general formula Spirodinaphthopyrans of the general formula Spirotrimethylindolinobenzopyrans of the general formula Spirotrimethylindolinonaphthopyrans of the general formula whose production is known in principle.

Claims (1)

Patentanspruch: Speichermaterial zur Aufzeichnung hochfrequenter Signale durch Umfärbung von Spiropyranen unter Lichteinstrahlung, d a d u r c h g ek e n n z e i c 1i n e t, daß das Speichermaterial zusätzlich Diphenylamin, vorzugsweise in einer Konzentration von bis , enthält.Claim: Storage material for recording high-frequency signals by changing the color of spiropyrans when exposed to light, characterized in that the storage material also contains diphenylamine, preferably in a concentration of until , contains.
DE1967T0034375 1967-07-21 1967-07-21 Storage material for recording high-frequency signals Pending DE1290977B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1967T0034375 DE1290977B (en) 1967-07-21 1967-07-21 Storage material for recording high-frequency signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1967T0034375 DE1290977B (en) 1967-07-21 1967-07-21 Storage material for recording high-frequency signals

Publications (1)

Publication Number Publication Date
DE1290977B true DE1290977B (en) 1969-03-20

Family

ID=7558462

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1967T0034375 Pending DE1290977B (en) 1967-07-21 1967-07-21 Storage material for recording high-frequency signals

Country Status (1)

Country Link
DE (1) DE1290977B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2205682A1 (en) * 1972-11-02 1974-05-31 Licentia Gmbh Radiation sensitive recording material - with better stability at low expos-ure without desensitisation contains hydrogen halide acceptor, donor and photochromic cpd.
DE2451118A1 (en) * 1973-10-29 1975-04-30 Asahi Chemical Ind PHOTOCHROMATIC MIXTURE THAT IS USED TO GENERATE PHOTOCHROMATIC IMAGES AND PROCESS FOR THEIR GENERATION AND DELETION

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2205682A1 (en) * 1972-11-02 1974-05-31 Licentia Gmbh Radiation sensitive recording material - with better stability at low expos-ure without desensitisation contains hydrogen halide acceptor, donor and photochromic cpd.
DE2451118A1 (en) * 1973-10-29 1975-04-30 Asahi Chemical Ind PHOTOCHROMATIC MIXTURE THAT IS USED TO GENERATE PHOTOCHROMATIC IMAGES AND PROCESS FOR THEIR GENERATION AND DELETION

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