WO2020023591A1 - Dispositifs, systèmes et procédés d'authentification par photoluminescence - Google Patents

Dispositifs, systèmes et procédés d'authentification par photoluminescence Download PDF

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Publication number
WO2020023591A1
WO2020023591A1 PCT/US2019/043169 US2019043169W WO2020023591A1 WO 2020023591 A1 WO2020023591 A1 WO 2020023591A1 US 2019043169 W US2019043169 W US 2019043169W WO 2020023591 A1 WO2020023591 A1 WO 2020023591A1
Authority
WO
WIPO (PCT)
Prior art keywords
radiation
photoauthentication
substrate
spectral
wavelength
Prior art date
Application number
PCT/US2019/043169
Other languages
English (en)
Inventor
Nabil Lawandy
Original Assignee
Spectra Systems Corporation
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
Priority claimed from US16/044,172 external-priority patent/US10140494B1/en
Application filed by Spectra Systems Corporation filed Critical Spectra Systems Corporation
Priority to CN201980055229.6A priority Critical patent/CN112689838B/zh
Publication of WO2020023591A1 publication Critical patent/WO2020023591A1/fr

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/20—Testing patterns thereon
    • G07D7/202—Testing patterns thereon using pattern matching
    • G07D7/205—Matching spectral properties
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/80—Recognising image objects characterised by unique random patterns
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/004—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using digital security elements, e.g. information coded on a magnetic thread or strip
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
    • G07D7/12—Visible light, infrared or ultraviolet radiation
    • G07D7/1205—Testing spectral properties
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C1/00—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3271—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using challenge-response
    • H04L9/3278—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using challenge-response using physically unclonable functions [PUF]

Definitions

  • the present application generally relates to devices, apparatus, systems and methods for authenticating items. Specifically, the present application relates to using a photoluminescent label or photoluminescent materials for authenticating items.
  • Counterfeiting is a growing business and economic concern.
  • Various products and items are subject to counterfeiting.
  • tax stamps for products such as liquor and tobacco, apparel, footwear, ink cartridges, currency, automotive parts, and electronics can all be subject to counterfeiting.
  • Counterfeit products are often difficult to detect and are typically of inferior quality.
  • Counterfeit products have an adverse impact on both consumers and manufacturers, and could even be harmful and/or dangerous to unsuspecting consumers.
  • Manufacturers attempt to discourage and prevent counterfeiting through various techniques. For example, some manufacturers of products targeted by counterfeiters have utilized specific markings, holograms, stamps, or other features on their products. Nevertheless, these techniques can typically be circumvented by counterfeiters.
  • RFID radio frequency identification
  • the invention features a system for authenticating an item, the system including a photoluminescent material disposed on or in a substrate and capable of absorbing an incident radiation from a radiation source and emitting an emitted radiation having a spectral signature with a decay time after removal of the radiation source, and a photoauthentication device capable of being disposed in contact with the substrate, the photoauthentication device including the radiation source configured to provide the incident radiation to the photoluminescent material and a camera configured to measure the emitted radiation from the photoluminescent material at predefined time intervals during the decay time, where, in connection with providing the incident radiation and measuring the emitted radiation, the photoauthentication device is translated across the substrate while the photoauthentication device is disposed in contact with the substrate, and where after the photoauthentication device is translated across or over the substrate and the radiation source is not providing the incident radiation, the photoauthentication device is static with respect to the substrate and the camera is disposed over the photoluminescent material emitting the emitted radiation when the emitted radiation is measured
  • the photoauthentication device may be translated across the substrate one or more times in providing the incident radiation, or may be static in providing the incident radiation.
  • the spectral signature may include a spectral intensity at a first wavelength and a spectral intensity at a second wavelength to define a measured code.
  • the detected code may be compared to a predetermined code to determine authentication.
  • the spectral signature may include a spectral pattern or a spatial pattern.
  • the spectral signature may include a spectral intensity at a third wavelength.
  • the photoauthentication device may be a smartphone or a tablet.
  • the camera of the smartphone or tablet may be operating in a video mode to measure a time response of the emitted radiation.
  • the radiation source may be capable of activation when an amount of background or ambient light detected by the camera is an amount of background or ambient light that permits successful irradiation and measurement of the emitted radiation.
  • the camera may communicate with an application to verify the authenticity of the item.
  • the photoauthentication device may further include an accelerometer configured to detect translation of the photoauthentication device.
  • the photoluminescent material may include or be combined with a radiation absorbing and reemitting material.
  • the photoluminescent material may be coated with a fluorescent material or disposed in a fiber or planchette having the fluorescent material disposed therein or thereon.
  • At least one of the first and second wavelengths in the emitted radiation may be within a spectrum of visible light and/or non-visible light.
  • the spectral signature may include spectral intensities for a first wavelength and a second wavelength at a first time in the decay time and spectral intensities for the first wavelength and the second wavelength at a second time in the decay time.
  • the substrate may be disposed on or in the item or a label on the item, may be a polymer or a board stock, and/or may be disposed on or in a currency note.
  • the decay time may be at least one quarter of a second.
  • the invention features a method for authenticating an item, including irradiating, with a radiation source, a substrate including a photoluminescent material configured to absorb an incident radiation and to emit an emitted radiation having a spectral signature with a decay time after removal of the radiation source; measuring, with a camera, the emitted radiation from the photoluminescent material at predefined time intervals during the decay time after removal of the radiation source; generating, with a computing device, a code based on the spectral signature; and comparing, with a computing device, the code to a predetermined reference code; where the radiation source, the camera, and the computing device are included in a photoauthentication device; where the photoauthentication device is disposed in contact with the substrate when irradiating with the radiation source and measuring the emitted radiation with the camera; and where, in connection with irradiating with the radiation source and measuring the emitted radiation, the photoauthentication device is translated across the substrate while the photoauthentication device is disposed in contact with
  • the photoauthentication device may be translated across the substrate one or more times in irradiating with the radiation source, or may be static in irradiating with the radiation source.
  • the spectral signature may include a spectral intensity at a first wavelength, a spectral intensity at a second wavelength, and a spectral intensity at a third wavelength.
  • the spectral signature may include spectral intensities for a first wavelength and a second wavelength at a first time in the decay time and spectral intensities for the first wavelength and the second wavelength at a second time in the decay time.
  • the photoauthentication device may be a smartphone or a tablet.
  • the camera of the smartphone or tablet may be operating in a video mode to measure a time response of the emitted radiation.
  • the radiation source may be activated when an amount of background or ambient light detected by the camera is an amount of background or ambient light that permits successful irradiation and measurement of the emitted radiation.
  • the photoluminescent material may be coated with a fluorescent material or disposed in a fiber or planchette having the fluorescent material disposed therein or thereon.
  • Figure 1A is an illustration of an exemplary photoluminescent label according to certain exemplary embodiments of the present invention.
  • Figure 1C is a diagram of an exemplary photoluminescent label according to certain exemplary embodiments of the present invention.
  • Figure 2A is an illustration of an exemplary photoluminescent label according to certain exemplary embodiments of the present invention
  • Figure 2B is an illustration of an exemplary photoluminescent label according to certain exemplary embodiments of the present invention
  • Figure 2C is a diagram of an exemplary photoluminescent label according to certain exemplary embodiments of the present invention.
  • Figure 2D is an illustration of an exemplary spatial pattern of an exemplary photoluminescent label according to certain exemplary embodiments of the present invention.
  • Figure 3 is a diagram of an exemplary photoluminescent authentication system according to certain exemplary embodiments of the present invention.
  • Figure 4A is a graph showing certain representative spectral characteristics of an exemplary radiation source according to certain exemplary embodiments of the present invention.
  • Figure 4B is a graph showing certain representative spectral characteristics of exemplary emitted radiation according to certain exemplary embodiments of the present invention.
  • Figure 4C is a graph showing certain representative spectral characteristics of exemplary emitted radiation according to certain exemplary embodiments of the present invention.
  • Figure 5 is a flow diagram of an exemplary method according to certain exemplary embodiments of the present invention.
  • Figure 6 is a diagram of an exemplary photoluminescent authentication system according to certain exemplary embodiments of the present invention.
  • Figure 7 is an illustration of an exemplary screenshot of an exemplary photoluminescent authentication application according to certain exemplary embodiments of the present invention.
  • Figure 9 illustrates an exemplary hue vs. saturation chart.
  • Exemplary embodiments of the present invention are generally directed to devices, apparatus, systems, and methods for authentication using photoluminescence.
  • exemplary embodiments of the present invention provide a label including a photoluminescent material and associated detecting/sensing mechanisms that may be used to authenticate an item to which the label is affixed.
  • the exemplary embodiments of the present invention are primarily described with respect to authentication and/or preventing counterfeiting, it is not limited thereto, and it should be noted that the exemplary photoluminescent label may be used to encode other types of information for other applications.
  • the exemplary embodiments of the present invention may be used in conjunction with other authentication measures, e.g., holograms, watermarks, and magnetic encoding.
  • the photoluminescent material may include or be combined with an absorbing and reemitting material, e.g., a dye, to create an additional level of security and protection to the photoluminescent material and/or photoluminescent label.
  • the absorbing and reemitting material is either mixed in with the photoluminescent material or disposed on top of the photoluminescent material.
  • the dye which may have a short decay time for radiation emitted thereby in comparison to the photoluminescent material, may absorb radiation emitted by the photoluminescent material itself and be excited and reemit radiation of a different wavelength, i.e., having a different color, throughout the decay period of the photoluminescent material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

L'invention concerne un système et un procédé d'authentification d'un article. Le système contient un matériau photoluminescent situé sur ou dans un substrat et pouvant absorber un rayonnement incident provenant d'une source de rayonnement et émettre un rayonnement émis ayant une signature spectrale avec un temps de décroissance après la suppression de la source de rayonnement. L'invention concerne également un dispositif de photo-authentification pouvant être placé en contact avec le substrat et contenant la source de rayonnement et une caméra. En association avec la délivrance du rayonnement incident et la mesure du rayonnement émis, le dispositif de photo-authentification est déplacé en translation sur toute la largeur du substrat lorsque le dispositif de photo-authentification est placé en contact avec le substrat. Après la translation sur toute la largeur ou au-dessus du substrat et lorsque la source de rayonnement ne délivre pas de rayonnement incident, le dispositif de photo-authentification est statique par rapport au substrat et la caméra est située au-dessus du matériau photoluminescent émettant le rayonnement émis lorsque le rayonnement émis est mesuré.
PCT/US2019/043169 2018-07-24 2019-07-24 Dispositifs, systèmes et procédés d'authentification par photoluminescence WO2020023591A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201980055229.6A CN112689838B (zh) 2018-07-24 2019-07-24 光致发光鉴定装置、系统和方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16/044,172 US10140494B1 (en) 2015-08-04 2018-07-24 Photoluminescent authentication devices, systems, and methods
US16/044,172 2018-07-24

Publications (1)

Publication Number Publication Date
WO2020023591A1 true WO2020023591A1 (fr) 2020-01-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2019/043169 WO2020023591A1 (fr) 2018-07-24 2019-07-24 Dispositifs, systèmes et procédés d'authentification par photoluminescence

Country Status (2)

Country Link
CN (1) CN112689838B (fr)
WO (1) WO2020023591A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100084541A1 (en) * 2007-04-26 2010-04-08 Greg Peregrym Registering patterns of features by adjusting the pitch of image swaths
US20130153789A1 (en) * 2011-12-19 2013-06-20 Honeywell International Inc. Luminescent materials, articles incorporating luminescent materials, and methods for performing article authentication
US20140233842A1 (en) * 2013-02-19 2014-08-21 LaserLock Technologies Inc. Characteristic verification system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2789355C (fr) * 2010-02-04 2016-05-03 Spectra Systems Corporation Modifications activees par un gaz apportees aux caracteristiques d'absorption et d'emission de la lumiere associees a des articles de securite
GB2507575B (en) * 2012-11-06 2017-04-12 Filtrona C&Sp Ltd An authentication device
US20170039794A1 (en) * 2015-08-04 2017-02-09 Spectra Systems Corp. Photoluminescent authentication devices, systems, and methods

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100084541A1 (en) * 2007-04-26 2010-04-08 Greg Peregrym Registering patterns of features by adjusting the pitch of image swaths
US20130153789A1 (en) * 2011-12-19 2013-06-20 Honeywell International Inc. Luminescent materials, articles incorporating luminescent materials, and methods for performing article authentication
US20140233842A1 (en) * 2013-02-19 2014-08-21 LaserLock Technologies Inc. Characteristic verification system

Also Published As

Publication number Publication date
CN112689838B (zh) 2022-07-12
CN112689838A (zh) 2021-04-20

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