GB2329610A - A covert mark and security marking system - Google Patents

A covert mark and security marking system

Info

Publication number
GB2329610A
GB2329610A GB9827053A GB9827053A GB2329610A GB 2329610 A GB2329610 A GB 2329610A GB 9827053 A GB9827053 A GB 9827053A GB 9827053 A GB9827053 A GB 9827053A GB 2329610 A GB2329610 A GB 2329610A
Authority
GB
United Kingdom
Prior art keywords
radiation
mark
characteristic
fluorescent
article
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.)
Granted
Application number
GB9827053A
Other versions
GB2329610B (en
GB9827053D0 (en
Inventor
Ian Charles Sage
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Publication of GB9827053D0 publication Critical patent/GB9827053D0/en
Publication of GB2329610A publication Critical patent/GB2329610A/en
Application granted granted Critical
Publication of GB2329610B publication Critical patent/GB2329610B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
    • G06K1/12—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
    • G06K1/121—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching by printing code marks
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/12—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using a selected wavelength, e.g. to sense red marks and ignore blue marks

Abstract

A covert mark (1) which may be applied to an article (2) comprises a fluorescent or phosphorescent material and has a unidirectionally aligned structure. Upon illumination of the mark (1) with ultraviolet radiation (3a), the mark (1) emits polarised fluorescent or phosphorescent radiation (3a) of characteristic radiation. The mark (1) may therefore be used in a system for covertly marking and checking the authenticity of a genuine article (2) whereby polarised fluorescent or phosphorescent radiation (3b) emitted from the mark (1) is incident on linearly polarising material. Detecting polarised fluorescent or phosphorescent radiation (3b) of characteristic wavelength and polarisation provides an indication of the authenticity of the article (2). By varying the orientation of the linearly polarising material, the plane of polarisation of radiation transmitted by the material is varied and a characteristic flashing effect is observed. The observation of fluorescent or phophorescent radiation (3b) of characteristic wavelength in addition to the characteristic flashing effect provides an indication of the authenticity of the article (2). In an alternative arrangement, the system may comprise a liquid crystal cell, containing a twisted nematic material, to which a variable voltage is applied. The voltage applied across the liquid crystal cell may be varied to produce the required characteristic flashing effect.
GB9827053A 1996-07-06 1997-07-01 A security marking system and covert mark production Expired - Fee Related GB2329610B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9614261.7A GB9614261D0 (en) 1996-07-06 1996-07-06 A covert mark and security marking system
PCT/GB1997/001763 WO1998001817A1 (en) 1996-07-06 1997-07-01 A covert mark and security marking system

Publications (3)

Publication Number Publication Date
GB9827053D0 GB9827053D0 (en) 1999-02-03
GB2329610A true GB2329610A (en) 1999-03-31
GB2329610B GB2329610B (en) 2000-11-01

Family

ID=10796509

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9614261.7A Pending GB9614261D0 (en) 1996-07-06 1996-07-06 A covert mark and security marking system
GB9827053A Expired - Fee Related GB2329610B (en) 1996-07-06 1997-07-01 A security marking system and covert mark production

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9614261.7A Pending GB9614261D0 (en) 1996-07-06 1996-07-06 A covert mark and security marking system

Country Status (6)

Country Link
US (1) US20030106994A1 (en)
EP (1) EP0914639B1 (en)
JP (1) JP2001506191A (en)
DE (1) DE69703045T2 (en)
GB (2) GB9614261D0 (en)
WO (1) WO1998001817A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2477741A (en) * 2010-02-10 2011-08-17 Smartwater Res Ltd Fluorescent materials used in marker systems

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1115949B1 (en) 1998-09-25 2003-01-02 Landqart Antifalsification paper and other antifalsification items
DE10211310B4 (en) * 2002-03-14 2006-09-07 Sicpa Holding S.A. Device for the optical detection of security tags made of liquid-crystalline material
US20050211914A1 (en) * 2002-04-04 2005-09-29 Landqart Device for verifying security features
DE50306308D1 (en) * 2002-04-04 2007-03-08 Landqart DEVICE FOR VERIFYING SECURITY FEATURES
GB0217192D0 (en) * 2002-07-24 2002-09-04 The Technology Partnership Plc A display system
DE10331798B4 (en) * 2003-07-14 2012-06-21 Giesecke & Devrient Gmbh Security element, valuable item, transfer material and manufacturing process
JP4505715B2 (en) * 2003-10-03 2010-07-21 Ｄｉｃ株式会社 Identification mark, method for discriminating identification mark, discrimination system, label for forming identification mark, and transfer foil
NL1026430C2 (en) * 2004-06-16 2005-12-19 Vhp Ugchelen Bv Security paper, comprising a substrate surface bounded by sides, provided with a luminescent security feature.
CN102818793A (en) * 2005-05-10 2012-12-12 数据跟踪Dna控股公司 High-resolution tracking of industrial process materials using trace incorporation of luminescent markers
US20070054130A1 (en) 2005-08-31 2007-03-08 Illinois Tool Works, Inc. Security laser printing film
DE102005057931A1 (en) * 2005-12-02 2007-06-06 Boraglas Gmbh Method and apparatus for machine reading marking on / on / in transparent marking carriers
JP2009250817A (en) * 2008-04-08 2009-10-29 Univ Of Yamanashi Counterfeit detection method, identification tag used for counterfeit detection, counterfeit detecting device, ink cartridge having identification tag, and printer using counterfeit detecting device
RU2490709C2 (en) * 2009-10-23 2013-08-20 Общество с ограниченной ответственностью "Флуоресцентные информационные технологии (ООО "Флуринтек") Fluorescent information label and methods of making said label
CN103403618A (en) * 2011-03-03 2013-11-20 日本电气株式会社 Projection screen, projection-type image display device, and multi-projection system
CN103403127A (en) 2011-03-30 2013-11-20 株式会社艾迪科 Polymerizable liquid crystal composition, polarized light-emitting coating material, novel naphtholactam derivative, novel coumarin derivative, novel nile red derivative, and novel anthracene derivative
EP2703772B1 (en) * 2012-08-28 2015-05-20 Texmag GmbH Vertriebsgesellschaft Sensor for detecting a moving strip
RU2609912C2 (en) * 2014-05-15 2017-02-07 Общество с ограниченной ответственностью "Флуоресцентные информационные технологии" (ООО "Флуринтек") Method of producing, including recovery, fluorescent marking of direct application

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3276316A (en) * 1961-08-02 1966-10-04 Polaroid Corp Process for polarizing ultraviolet light utilizing oriented polymer sheet with incorporated dichroic fluorescent dye
JPS5619009A (en) * 1979-07-25 1981-02-23 Sanritsu Denki Kk Polarizing film
JPS59192938A (en) * 1983-04-15 1984-11-01 Seiko Instr & Electronics Ltd Sample box with automatic rotating polarizing plate
JPS60250304A (en) * 1984-05-25 1985-12-11 Nitto Electric Ind Co Ltd Polarizing body
GB2189800A (en) * 1986-04-07 1987-11-04 Michael Anthony West Marking of articles
EP0297927A2 (en) * 1987-07-03 1989-01-04 Unitika Ltd. Polarizing film and process for the production of the same
US5423432A (en) * 1993-12-30 1995-06-13 Eastman Chemical Company Water-dissipatable polyesters and amides containing near infrared fluorescent compounds copolymerized therein
US5502304A (en) * 1994-12-01 1996-03-26 Pitney Bowes Inc. Bar code scanner for reading a visible ink and a luminescent invisible ink
US5532104A (en) * 1993-08-19 1996-07-02 Olympus Optical Co., Ltd. Invisible information recording medium

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3276316A (en) * 1961-08-02 1966-10-04 Polaroid Corp Process for polarizing ultraviolet light utilizing oriented polymer sheet with incorporated dichroic fluorescent dye
JPS5619009A (en) * 1979-07-25 1981-02-23 Sanritsu Denki Kk Polarizing film
JPS59192938A (en) * 1983-04-15 1984-11-01 Seiko Instr & Electronics Ltd Sample box with automatic rotating polarizing plate
JPS60250304A (en) * 1984-05-25 1985-12-11 Nitto Electric Ind Co Ltd Polarizing body
GB2189800A (en) * 1986-04-07 1987-11-04 Michael Anthony West Marking of articles
EP0297927A2 (en) * 1987-07-03 1989-01-04 Unitika Ltd. Polarizing film and process for the production of the same
US5532104A (en) * 1993-08-19 1996-07-02 Olympus Optical Co., Ltd. Invisible information recording medium
US5423432A (en) * 1993-12-30 1995-06-13 Eastman Chemical Company Water-dissipatable polyesters and amides containing near infrared fluorescent compounds copolymerized therein
US5502304A (en) * 1994-12-01 1996-03-26 Pitney Bowes Inc. Bar code scanner for reading a visible ink and a luminescent invisible ink

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PAT ABS JP vol.10,no.124(P-454),09/05/86 & JP 60 250304 A (NITTO DENKI KOGYO KK),11/12/85,see abstra *
PAT ABS JP vol.5,no.69(P-060),09/05/81 & JP 56 019009 A (SAITSU DENKI KK) 23/02/81,see abstract *
PAT ABS JP vol.9,no.54(P-340),08/03/85 & JP 59 192938 A (SEIKO DENSHI KOGYO KK),01/11/84,see abstrac *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2477741A (en) * 2010-02-10 2011-08-17 Smartwater Res Ltd Fluorescent materials used in marker systems

Also Published As

Publication number Publication date
JP2001506191A (en) 2001-05-15
DE69703045D1 (en) 2000-10-12
EP0914639A1 (en) 1999-05-12
DE69703045T2 (en) 2001-01-11
GB2329610B (en) 2000-11-01
WO1998001817A1 (en) 1998-01-15
GB9614261D0 (en) 1996-09-04
GB9827053D0 (en) 1999-02-03
US20030106994A1 (en) 2003-06-12
EP0914639B1 (en) 2000-09-06

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030701