DE10065605A1 - Device for protecting compact disc (CDs) surface from scratching, includes additional layer of liquid-heated clear glass sprayed onto surface - Google Patents

Device for protecting compact disc (CDs) surface from scratching, includes additional layer of liquid-heated clear glass sprayed onto surface

Info

Publication number
DE10065605A1
DE10065605A1 DE2000165605 DE10065605A DE10065605A1 DE 10065605 A1 DE10065605 A1 DE 10065605A1 DE 2000165605 DE2000165605 DE 2000165605 DE 10065605 A DE10065605 A DE 10065605A DE 10065605 A1 DE10065605 A1 DE 10065605A1
Authority
DE
Germany
Prior art keywords
cds
scratching
liquid
additional layer
clear glass
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.)
Withdrawn
Application number
DE2000165605
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE2000165605 priority Critical patent/DE10065605A1/en
Publication of DE10065605A1 publication Critical patent/DE10065605A1/en
Withdrawn legal-status Critical Current

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
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • 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
    • G11B7/254—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 protective topcoat layers
    • 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

Abstract

A device for protecting compact discs (CDs) and CD-like data carriers against surface scratching, includes an additional layer of liquid-heated clear glass sprayed on the existing plastic surface of the side of the CD to be read.

Description

Die Erfindung betrifft ein Verfahren entsprechend dem Oberbegriff des Anspruchs 1.The invention relates to a method according to the preamble of claim 1.

Es ist bekannt, Brillenlinsen aus Plastikmaterial mit aufgedampftem Glas zu beschichten, um so das schnelle Verkratzen des relativ weichen Plastikmaterials der Linsen durch die wesentlich härtere Glasschicht zu vermeiden bzw. zu verringern.It is known to coat eyeglass lenses made of plastic material with evaporated glass, so that quick scratching of the relatively soft plastic material of the lenses by the much harder Avoid or reduce the layer of glass.

Aufgabe der Erfindung ist es, bei CD's gleichfalls eine Glasbeschichtung anzuwenden, weil auch hier das Zerkratzen eine wesentliche Rolle beim Unbrauchbarwerden dieser Datenträgern spielt.The object of the invention is also to apply a glass coating to CD's, because here too scratching plays an essential role in rendering these media unusable.

Diese Aufgabe wird durch das Aufdampfen einer Glasschicht auf die bereits vorhandene glatte Plastikoberfläche gelöst. Da auch hier die Optik nicht durch das einseitige Auftragen einer Glasschicht beeinträchtigt wird, muß lediglich der Datenträger stabiler sein, weil sonst bei der vorhandenen Elastizität der CD's die Gefahr bestünde, dass die aufgetragene Glasschicht Risse bekommt und eventuell absplittert.This task is accomplished by evaporating a layer of glass onto the existing smooth one Plastic surface loosened. Since here too the optics are not due to the one-sided application of one Glass layer is affected, only the disk must be more stable, because otherwise existing elasticity of the CD's there is a risk that the applied glass layer cracks gets and eventually splinters off.

Die zum Teil recht teuren Musik-CD's würden bei entsprechender Behandlung eine wesentlich höhere Haltbarkeitsdauer haben und Daten-CD's wären beim Gebrauch besser gegen Verschleiß geschützt.The music CD's, which are sometimes quite expensive, would be much higher if treated appropriately Shelf life and data CDs would be better protected against wear when in use.

Mustertemplate

Das Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigtThe embodiment of the invention is shown in the drawing and will be described in more detail below described. It shows

Fig. 1 einen senkrechten Schnitt durch eine Compact Disk. Fig. 1 shows a vertical section through a compact disk.

Die unterschiedlichen Aufbauschichten einer CD sind bekannt. Statt wie bisher auf die Datenträgerschicht eine nur unzulänglich schützende durchsichtige Plastikoberfläche aufzubringen, wird zusätzlich eine Schutzschicht aus klarem, flüssigem Glas in dünner Stärke aufgedampft. Der Abkühlungsvorgang sollte sehr langsam erfolgen, denn dieser beeinflußt die Klarheit der gläsernen Schutzschicht. Die CD muß starr konstruiert sein, um das Verwinden beim Handhaben zu unterbinden. Hierzu kann ein härteres Plastikträgermaterial benutzt werden, ohne die Stärke oder das Gewicht der CD wesentlich zu verändern.The different build-up layers of a CD are known. Instead of the previous one To apply an insufficiently protective transparent plastic surface, In addition, a protective layer of clear, liquid glass is deposited in a thin layer. The Cooling process should be done very slowly, because this affects the clarity of the glass Protective layer. The CD must be rigidly constructed to avoid twisting when handling prevention. For this, a harder plastic carrier material can be used, without the strength or that Change the weight of the CD significantly.

Claims (1)

Vorrichtung zum Schutz von CDs und CD-ähnlichen Datenträgern gegen Zerkratzen der Oberfläche, dadurch gekennzeichnet, daß auf die vorhandene Plastikoberfläche (1) der zu lesenden Seite einer CD eine zusätzliche Schicht aus flüssig erhitztem, klaren Glas (2) aufgesprüht wird.Device for protecting CDs and CD-like data carriers against scratching the surface, characterized in that an additional layer of liquid-heated, clear glass ( 2 ) is sprayed onto the existing plastic surface ( 1 ) of the side of a CD to be read.
DE2000165605 2000-12-28 2000-12-28 Device for protecting compact disc (CDs) surface from scratching, includes additional layer of liquid-heated clear glass sprayed onto surface Withdrawn DE10065605A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2000165605 DE10065605A1 (en) 2000-12-28 2000-12-28 Device for protecting compact disc (CDs) surface from scratching, includes additional layer of liquid-heated clear glass sprayed onto surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2000165605 DE10065605A1 (en) 2000-12-28 2000-12-28 Device for protecting compact disc (CDs) surface from scratching, includes additional layer of liquid-heated clear glass sprayed onto surface

Publications (1)

Publication Number Publication Date
DE10065605A1 true DE10065605A1 (en) 2002-07-18

Family

ID=7669360

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2000165605 Withdrawn DE10065605A1 (en) 2000-12-28 2000-12-28 Device for protecting compact disc (CDs) surface from scratching, includes additional layer of liquid-heated clear glass sprayed onto surface

Country Status (1)

Country Link
DE (1) DE10065605A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4831608A (en) * 1984-02-22 1989-05-16 Daicel Chemical Industries, Ltd. Multi-layer high density information recording carrier having a non-alkali inorganic glass protective layer
US5089358A (en) * 1988-11-05 1992-02-18 Brother Kogyo Kabushiki Kaisha Optical recording medium
US6086796A (en) * 1997-07-02 2000-07-11 Diamonex, Incorporated Diamond-like carbon over-coats for optical recording media devices and method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4831608A (en) * 1984-02-22 1989-05-16 Daicel Chemical Industries, Ltd. Multi-layer high density information recording carrier having a non-alkali inorganic glass protective layer
US5089358A (en) * 1988-11-05 1992-02-18 Brother Kogyo Kabushiki Kaisha Optical recording medium
US6086796A (en) * 1997-07-02 2000-07-11 Diamonex, Incorporated Diamond-like carbon over-coats for optical recording media devices and method thereof

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8139 Disposal/non-payment of the annual fee