DE10231459A1 - Fingerprinting arrangement comprises an element which serves as a finger or hand contact surface and is provided with titanium oxide and/or silver particles subjected to ultraviolet radiation - Google Patents

Fingerprinting arrangement comprises an element which serves as a finger or hand contact surface and is provided with titanium oxide and/or silver particles subjected to ultraviolet radiation Download PDF

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Publication number
DE10231459A1
DE10231459A1 DE2002131459 DE10231459A DE10231459A1 DE 10231459 A1 DE10231459 A1 DE 10231459A1 DE 2002131459 DE2002131459 DE 2002131459 DE 10231459 A DE10231459 A DE 10231459A DE 10231459 A1 DE10231459 A1 DE 10231459A1
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DE
Germany
Prior art keywords
silver particles
contact surface
finger
fingerprinting
serves
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Withdrawn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
DE2002131459
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German (de)
Inventor
Andreas Neudeck
Rolf-Dietrich Berndt
Horst Ahlers
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.)
Berndt Rolf-Dietrich Dipl-Ing
Original Assignee
Berndt Rolf-Dietrich Dipl-Ing
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.)
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Publication date
Application filed by Berndt Rolf-Dietrich Dipl-Ing filed Critical Berndt Rolf-Dietrich Dipl-Ing
Priority to DE2002131459 priority Critical patent/DE10231459A1/en
Publication of DE10231459A1 publication Critical patent/DE10231459A1/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/10—Ultraviolet radiation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/23—Solid substances, e.g. granules, powders, blocks, tablets
    • A61L2/232—Solid substances, e.g. granules, powders, blocks, tablets layered or coated
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/23—Solid substances, e.g. granules, powders, blocks, tablets
    • A61L2/238—Metals or alloys, e.g. oligodynamic metals
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

The fingerprinting arrangement comprises an element which serves as a contact surface for one or more fingers or a hand, and is provided with titanium oxide and/or silver particles subjected to artificial and/or natural UV radiation.

Description

Die Erfindung wird in der Biometrie angewendet.The invention is in biometrics applied.

Für die Ermittlung von Objektmerkmalen des oder der menschlichen Finger werden Anordnungen eingesetzt, bei denen der Finger auf eine Glasplatte ohne oder mit plastischer Auflage oder ähnlicher Substanz gelegt wird. Durch die Berührung werden die sogenannten Leistenstege in ein optisches Bildaufnahmesystem übertragen und dann mathematisch bewertet. Ohne Berührung ist eine Erkennung und Bewertung des Fingerabdrucks nicht möglich.For the determination of object features of the human finger or fingers Arrangements are used in which the finger on a glass plate without or with a plastic pad or similar substance. By touch the so-called bar webs are transferred to an optical image recording system and then evaluated mathematically. There is a detection without touch Not possible to evaluate the fingerprint.

Hat die zu erkennende Person eine Hautkrankheit und/oder ist Träger von biologischen Keimen am Finger, wird die Berührungsfläche contaminiert. Nachfolgende Personen können sich damit infizieren. Dadurch entsteht eine gefährliche Verbreitungsmöglichkeit von Krankheiten. Das stellt die Akzeptanz und Zulässigkeit des gesamten Fingerabdruck-Erfassungssystems in Frage. Andererseits besteht für Sicherheitsmaßnahmen ein großer Bedarf und eine oft unabdingbare Notwendigkeit. In bislang veröffentlichten Übersichten über Fingerprint-Anordnungen [z.B. Funkschau 17/2001, S. 46–49] ist von dieser Aufgabenstellung nichts vermerkt.If the person to be recognized has one Skin disease and / or is carrier biological germs on the finger contaminate the contact surface. subsequent People can get infected with it. This creates a dangerous spreading possibility of diseases. That represents acceptance and admissibility of the entire fingerprint capture system in question. on the other hand exists for Safety measures a large Needs and an often indispensable necessity. In previously published overviews of fingerprint arrangements [E.g. Funkschau 17/2001, pp. 46–49] nothing of this task is noted.

Aufgabe der Erfindung ist es deshalb, die Ansteckungsgefahr bei der Benutzung von Fingerprint-Anordnungen zu verringern.The object of the invention is therefore the risk of infection when using fingerprint arrangements to reduce.

Die Erfindung ist dadurch gekennzeichnet, daß die Auflage- bzw. Berührungsfläche durch Titandioxid- und/oder Silberpartikel bis zu dem Maße aufgefüllt ist, daß die Erkennungsfunktion noch gewährleistet ist, und daß eine künstliche oder die durch die Sonne gelieferte natürliche Ultraviolett-Strahlung auf diese Partikel strahlt. Die Titandioxid- und/oder Silberpartikel können auch auf die Berührungsfläche aufgedruckt werden und/oder immobilisiert sein und/oder in kleinen Depots vorliegen und/oder auf auswechselbaren Trägern angeordnet sein. Es ist zwar bekannt, daß die Anastes-Modifikation des Titandioxids bakterientötende Eigenschaften aufweist [VDI-Nachrichten vom 11.01.2000, S. 13 und Keramische Zeitschrift 51(1999)10, S. 874–878], aber die Aufgabenstellung mit ihrer erfindungsgemäßen Lösung bei Fingerprint-Anordnungen ist bisher nirgends publiziert.The invention is characterized in that the support or contact surface Titanium dioxide and / or silver particles are filled up to the extent that the Detection function still guaranteed is, and that a artificial or the natural ultraviolet radiation provided by the sun shines on these particles. The titanium dioxide and / or silver particles can also printed on the contact surface will and / or be immobilized and / or be in small depots and / or on interchangeable carriers be arranged. It is known that the Anastes modification of the titanium dioxide bactericidal Features [VDI news dated January 11, 2000, p. 13 and Ceramic Journal 51 (1999) 10, pp. 874-878], but the task with their solution according to the invention Fingerprint arrangements have not been published anywhere.

Die Erfindung wird an einem Beispiel erläutert.The invention is illustrated using an example explained.

1 zeigt ein Prisma (1) mit einer Fingerprint-Anordnung, eine CCD-Kamera (2) für die Aufnahme des Fingerabdrucks und eine Beleuchtungseinrichtung (3). Auf dem Prisma (1) befindet sich eine plastische Schicht (4), in der Titandioxid- und/oder Silberpartikel eingebracht sind. Durch zusätzliche aufgebrachte Lumineszenzdioden (5) mit UVA- bis UVB-Strahlung um 400 nm ist eine künstliche UV-Bestrahlung mit geringer Intensität möglich. Besser ist eine UV-Bestrahlung mit einer Xenonleuchte (6) und/oder der natürlichen Sonnenstrahlung (7). 1 shows a prism ( 1 ) with a fingerprint arrangement, a CCD camera ( 2 ) for the recording of the fingerprint and a lighting device ( 3 ). On the prism ( 1 ) there is a plastic layer ( 4 ), in which titanium dioxide and / or silver particles are introduced. With additional luminescent diodes ( 5 ) With UVA to UVB radiation around 400 nm, artificial UV radiation with low intensity is possible. It is better to use UV radiation with a xenon lamp ( 6 ) and / or natural solar radiation ( 7 ).

Die Ergebnisse einer Bestrahlung mit einer Xenonleuchte sind in 2 dargestellt. Die Überlebenschancen von Bakterien des Stammes Escherichia coli ATCC8739 (nichtwachsende Zellen) auf einem Träger, der mit Titandioxid- und/oder Silberpartikeln getränkt und auf einem Objektträger befestigt ist, zeigt das Diagramm augenscheinlich. Bei Bestrahlung (2) mit UV/VIS-Licht von 900 kJm–2 unter Ausfiltern des UVC-Bereiches mit einer Xenonleuchte über 30 Minuten bei 35 °C Umgebungstemperatur werden die unbehandelten Träger (a) und der Objektträger (c) zum Vergleich nur geringfügig beeinflußt. Die Titandioxidbeschichtung des Trägers (b) ergibt nach oben genannter UV-Bestrahlung eine vollständige Zerstörung aller Escherichia coli-Bakterien. Die Proben ohne Bestrahlung sind bei "1" angeführt. Die Ordinate zeigt die Populationsgröße. Das gleiche gilt für Staphylococcus aureus.The results of irradiation with a xenon lamp are shown in 2 shown. The diagram clearly shows the chances of survival of bacteria from the Escherichia coli ATCC8739 strain (non-growing cells) on a support soaked in titanium dioxide and / or silver particles and attached to a slide. When irradiated ( 2 ) with UV / VIS light of 900 kJm -2 while filtering out the UVC range with a xenon lamp for 30 minutes at 35 ° C ambient temperature, the untreated slide (a) and the slide (c) are only slightly influenced for comparison. The titanium dioxide coating of the support (b) results in complete destruction of all Escherichia coli bacteria after the above-mentioned UV radiation. The samples without irradiation are listed at "1". The ordinate shows the population size. The same applies to Staphylococcus aureus.

Claims (3)

Fingerprint-Anordnung mit Auflegen eines oder mehrerer Finger oder der Hand dadurch gekennzeichnet, daß die Auflagefläche mit Titandioxid- und/oder Silberpartikeln angereichert ist, die durch künstliche und/oder natürliche Ultraviolettstrahlung bestrahlt sind oder werden.Fingerprint assembly characterized by placing one or more fingers or hand, that the bearing surface with titanium dioxide and / or silver particles is enriched, which are irradiated by means of artificial and / or natural ultraviolet radiation or. Fingerprint-Anordnung nach Anspruch 1 dadurch gekennzeichnet, daß sich die Titandioxid- und/oder Silberpartikel auf die Auflagefläche als Muster aufgedruckt sind oder in Depots befinden.Fingerprint arrangement according to claim 1, characterized in that itself the titanium dioxide and / or silver particles on the contact surface as a pattern are printed or in depots. Fingerprint-Anordnung nach vorherigen Ansprüchen dadurch gekennzeichnet, daß die Titandioxid- und/oder Silberpartikel auswechselbar angeordnet oder auf einer auswechselbaren Folie aufgebracht sind.Fingerprint arrangement according to previous claims, that the Titanium dioxide and / or silver particles arranged interchangeably or are applied to an interchangeable film.
DE2002131459 2002-07-08 2002-07-08 Fingerprinting arrangement comprises an element which serves as a finger or hand contact surface and is provided with titanium oxide and/or silver particles subjected to ultraviolet radiation Withdrawn DE10231459A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2002131459 DE10231459A1 (en) 2002-07-08 2002-07-08 Fingerprinting arrangement comprises an element which serves as a finger or hand contact surface and is provided with titanium oxide and/or silver particles subjected to ultraviolet radiation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2002131459 DE10231459A1 (en) 2002-07-08 2002-07-08 Fingerprinting arrangement comprises an element which serves as a finger or hand contact surface and is provided with titanium oxide and/or silver particles subjected to ultraviolet radiation

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006032603A1 (en) * 2004-09-24 2006-03-30 Abb Research Ltd Gripping device
CN105288682A (en) * 2014-07-31 2016-02-03 北京白象新技术有限公司 Washer-disinfector with cloud service function
CN105311667A (en) * 2014-07-31 2016-02-10 北京白象新技术有限公司 Low-temperature plasma sterilizer with cloud service function
CN105311657A (en) * 2014-07-31 2016-02-10 北京白象新技术有限公司 High-temperature high-pressure sterilizer with cloud service function
CN105311658A (en) * 2014-07-31 2016-02-10 北京白象新技术有限公司 Air disinfecting machine with cloud service function

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006032603A1 (en) * 2004-09-24 2006-03-30 Abb Research Ltd Gripping device
CN105288682A (en) * 2014-07-31 2016-02-03 北京白象新技术有限公司 Washer-disinfector with cloud service function
CN105311667A (en) * 2014-07-31 2016-02-10 北京白象新技术有限公司 Low-temperature plasma sterilizer with cloud service function
CN105311657A (en) * 2014-07-31 2016-02-10 北京白象新技术有限公司 High-temperature high-pressure sterilizer with cloud service function
CN105311658A (en) * 2014-07-31 2016-02-10 北京白象新技术有限公司 Air disinfecting machine with cloud service function

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