CA2539453A1 - System and method for authenticating an article - Google Patents
System and method for authenticating an article Download PDFInfo
- Publication number
- CA2539453A1 CA2539453A1 CA002539453A CA2539453A CA2539453A1 CA 2539453 A1 CA2539453 A1 CA 2539453A1 CA 002539453 A CA002539453 A CA 002539453A CA 2539453 A CA2539453 A CA 2539453A CA 2539453 A1 CA2539453 A1 CA 2539453A1
- Authority
- CA
- Canada
- Prior art keywords
- article according
- image
- latent image
- authenticating
- lines
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract 24
- 238000002310 reflectometry Methods 0.000 claims 32
- 239000006117 anti-reflective coating Substances 0.000 claims 10
- 230000003287 optical effect Effects 0.000 claims 8
- 239000002966 varnish Substances 0.000 claims 7
- 239000011248 coating agent Substances 0.000 claims 6
- 238000000576 coating method Methods 0.000 claims 6
- 239000000463 material Substances 0.000 claims 4
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 claims 2
- 229910001635 magnesium fluoride Inorganic materials 0.000 claims 2
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/29—Securities; Bank notes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S283/00—Printed matter
- Y10S283/901—Concealed data
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S283/00—Printed matter
- Y10S283/902—Anti-photocopy
Abstract
A method of applying an authentication image to an article is presented. The method comprises obtaining a digitized version of the authentication image (Fig. 4), encoding the digitized version of the authentication image to produce an encoded latent image, and printing the encoded latent image on a printable surface of the article using a transmittent printing medium.
Claims (54)
1. An authenticatable article comprising:
a printable surface;
a latent image formed on a first portion of the printable surface in a transmittent printing medium, the latent image being an encoded version of an authentication image and being configured for optical decoding by an optical decoder so that the authentication image can be viewed through the optical decoder when the optical decoder is placed over the latent image.
a printable surface;
a latent image formed on a first portion of the printable surface in a transmittent printing medium, the latent image being an encoded version of an authentication image and being configured for optical decoding by an optical decoder so that the authentication image can be viewed through the optical decoder when the optical decoder is placed over the latent image.
2. An authenticatable article according to claim 1 wherein the transmittent printing medium is selected to provide a maximum reflectivity difference between the first portion of the printable surface with the latent image printed thereon and an adjacent area of the printable surface, the maximum reflectivity difference being no greater than 5% of the reflectivity of the adjacent area.
3. An authenticatable article according to claim 1 wherein the transmittent printing medium is selected to provide a maximum reflectivity difference between the first portion of the printable surface with the latent image printed thereon and an adjacent area of the printable surface, the maximum reflectivity difference being in a range of about 0.5% to about 1.5%
of the reflectivity of the adjacent area.
of the reflectivity of the adjacent area.
4. An authenticatable article according to claim 1 wherein the transmittent printing medium comprises a clear printer's varnish.
5. An authenticatable article according to claim 1 wherein the transmittent printing medium includes one or more of a dye and an iridescent material.
6. An authenticatable article according to claim 1 wherein the latent image comprises a plurality of parallel lines printed with a line frequency in a range of about 50 lines/inch to about 150 lines/inch.
7. An authenticatable article according to claim 1 wherein the latent image comprises a plurality of parallel lines printed with a line frequency in a range of about 50 lines/inch to about 65 lines/inch.
8. An authenticatable article according to claim 1 wherein the line frequency is selected to match a lens frequency of the decoder within about plus or minus 10 lines/inch.
9. An authenticatable article according to claim 1 further comprising a visible primary image formed on a second portion of the printable surface.
10. An authenticatable article according to claim 9 wherein at least a portion of the latent image is formed over at least a portion of the primary image.
11. An authenticatable article according to claim 10 wherein a maximum reflectivity difference between the at least a portion of the latent image and the at least a portion of the primary image is no greater than 5% of the reflectivity of the at least a portion of the primary image.
12. An authenticatable article according to claim 10 wherein a maximum reflectivity difference between the at least a portion of the latent image and the at least a portion of the primary image is in a range of about 0.5% to about 1.5% of the reflectivity of the at least a portion of the primary image.
13. An authenticatable article according to claim 9 wherein the primary image comprises line work.
14. An authenticatable article according to claim 9 wherein the line work is a bar code.
15. ~A system for authenticating an article, the system comprising:
a latent image formed in a transmittent printing medium on a printable surface of the article, the latent image being configured as an encoded version of an authentication image using an optically decodable coding scheme; and an optical decoder comprising a lens adapted for placement over at least a portion of the latent image, the lens having optical decoding properties corresponding to the optically decodable coding scheme for decoding the latent image when the lens is placed over the latent image, thereby allowing the authentication image to be viewed through the lens.
a latent image formed in a transmittent printing medium on a printable surface of the article, the latent image being configured as an encoded version of an authentication image using an optically decodable coding scheme; and an optical decoder comprising a lens adapted for placement over at least a portion of the latent image, the lens having optical decoding properties corresponding to the optically decodable coding scheme for decoding the latent image when the lens is placed over the latent image, thereby allowing the authentication image to be viewed through the lens.
16. ~A system for authenticating an article according to claim 15 wherein the transmittent printing medium is selected to provide a maximum reflectivity difference between the first portion of the printable surface with the latent image printed thereon and an adjacent area of the printable surface, the maximum reflectivity difference being no greater than 5% of the reflectivity of the adjacent area.
17. ~A system for authenticating an article according to claim 15 wherein the transmittent printing medium is selected to provide a maximum reflectivity difference between the first portion of the printable surface with the latent image printed thereon and an adjacent area of the printable surface, the maximum reflectivity difference being in a range of about 0.5% to about 1.5% of the reflectivity of the adjacent area.
18. A system for authenticating an article according to claim 15 wherein the transmittent printing medium comprises a clear printer's varnish.
19. A system for authenticating an article according to claim 15 wherein the transmittent printing medium comprises a clear printer's varnish and one or more of a dye and an iridescent material.
20. A system for authenticating an article according to claim 15 wherein the latent image comprises a plurality of parallel lines printed with a line frequency in a range of about 50 lines/inch to about 150 lines/inch.
21. A system for authenticating an article according to claim 15 wherein the latent image comprises a plurality of parallel lines printed with a line frequency in a range of about 50 lines/inch to about 65 lines/inch.
22. A system for authenticating an article according to claim 21 wherein the lens is a lenticular lens formed as a substantially planar member having an upper, viewer-facing surface and a lower, image-facing surface, the viewer-facing surface having a plurality of adjacent parallel ridges having a common geometry including a curved uppermost surface having a predetermined curvature, the number and geometry of the parallel ridges establishing a lens frequency.
23. A system for authenticating an article according to claim 22 wherein the line frequency and the lens frequency differ by less than about 10 lines/inch.
24. A system for authenticating an article according to claim 21 wherein the lens comprises an anti-reflective coating on at least one of the upper, viewer-facing surface and the lower, image-facing surface.
25. A system for authenticating an article according to claim 24 wherein the anti-reflective coating comprises a magnesium fluoride coating.
26. A system for authenticating an article according to claim 24 wherein the anti-reflective coating comprises at least one of a narrowband coating and a broadband coating.
27. A system for authenticating an article according to claim 24 wherein the anti-reflective coating is formed from a plurality of layers.
28. A system for authenticating an article according to claim 24 wherein the anti-reflective coating has a total thickness in a range of about 2.0 microns to about 4.0 microns.
29. ~A system for authenticating an article, the system comprising:
a latent image formed in a transmittent printing medium on a printable surface of the article the latent image being configured as an encoded version of an authentication image using an optically decodable coding scheme; and~
optical decoding means for decoding the latent image so that the authentication image can be viewed.
a latent image formed in a transmittent printing medium on a printable surface of the article the latent image being configured as an encoded version of an authentication image using an optically decodable coding scheme; and~
optical decoding means for decoding the latent image so that the authentication image can be viewed.
30. ~A system for authenticating an article according to claim 29 wherein the transmittent printing medium is selected to provide a maximum reflectivity difference between the first portion of the printable surface with the latent image printed thereon and an adjacent area of the printable surface, the maximum reflectivity difference being no greater than 5% of the reflectivity of the adjacent area.
31. ~A system for authenticating an article according to claim 29 wherein the transmittent printing medium is selected to provide a maximum reflectivity difference between the first portion of the printable surface with the latent image printed thereon and an adjacent area of the printable surface, the maximum reflectivity difference being in a range of about 0.5% to about 1.5% of the reflectivity of the adjacent area.
32. ~A system for authenticating an article according to claim 29 wherein the transmittent printing medium comprises a clear printer's varnish.
33. ~A system for authenticating an article according to claim 29 wherein the transmittent printing medium comprises a clear printer's varnish and one or more of a dye and an iridescent material.
34. ~A system for authenticating an article according to claim 29 wherein the latent image comprises a plurality of parallel lines printed with a line frequency in a range of about 50 lines/inch to about 150 lines/inch.
35. A system for authenticating an article according to claim 29 wherein the latent image comprises a plurality of parallel lines printed with a line frequency in a range of about 50 lines/inch to about 65 lines/inch.
36. A system for authenticating an article according to claim 29 wherein the optical decoding means includes a lenticular lens formed as a substantially planar member having an upper, viewer-facing surface and a lower, image-facing surface, the viewer-facing surface having a plurality of adjacent parallel ridges having a common geometry including a curved uppermost surface having a predetermined curvature, the number and geometry of the parallel ridges establishing a lens frequency.
37. A system for authenticating an article according to claim 36 wherein the line frequency and the lens frequency differ by less than about 10 lines/inch.
38. A system for authenticating an article according to claim 36 wherein the lenticular lens comprises an anti-reflective coating on at least one of the upper, viewer-facing surface and the lower, image-facing surface.
39. A system for authenticating an article according to claim 38 wherein the anti-reflective coating comprises a magnesium fluoride coating.
40. A system for authenticating an article according to claim 38 wherein the anti-reflective coating comprises at least one of a narrowband coating and a broadband coating.
41. A system for authenticating an article according to claim 38 wherein the anti-reflective coating is formed from a plurality of layers.
42. A system for authenticating an article according to claim 38 wherein the anti-reflective coating has a total thickness in a range of about 2.0 microns to about 4.0 microns.
43. ~A method of applying an authentication image to an article, the method comprising:
obtaining a digitized version of the authentication image;
encoding the digitized version of the authentication image to produce an encoded latent image; and printing the encoded latent image on a first portion of the printable surface of the article using a transmittent printing medium.
obtaining a digitized version of the authentication image;
encoding the digitized version of the authentication image to produce an encoded latent image; and printing the encoded latent image on a first portion of the printable surface of the article using a transmittent printing medium.
44. ~A method of applying an authentication image to an article according to claim 43 wherein the transmittent printing medium is selected to provide a maximum reflectivity difference between the first portion of the printable surface with the latent image printed thereon and an adjacent area of the printable surface, the maximum reflectivity difference being no greater than 5% of the reflectivity of the adjacent area.
45. ~A method of applying an authentication image to an article according to claim 43 wherein the transmittent printing medium is selected to provide a maximum reflectivity difference between the first portion of the printable surface with the latent image printed thereon and an adjacent area of the printable surface, the maximum reflectivity difference being in a range of about 0.5% to about 1.5% of the reflectivity of the adjacent area.
46. A method of applying an authentication image to an article according to claim 43 wherein the transmittent printing medium comprises a clear printer's varnish.
47. A method of applying an authentication image to an article according to claim 43 wherein the transmittent printing medium comprises a clear printer's varnish and one or more of a dye and an iridescent material.
48. A method of applying an authentication image to an article according to claim 43 wherein the latent image comprises a plurality of parallel lines printed with a line frequency in a range of about 50 lines/inch to about 150 lines/inch.
49. A method of applying an authentication image to an article according to claim 43 wherein the latent image comprises a plurality of parallel lines printed with a line frequency in a range of about 50 lines/inch to about 65 lines/inch.
50. A method of applying an authentication image to an article according to claim 43 wherein the article includes a visible primary image disposed on the printable surface and the action of printing the encoded latent image includes printing at least a portion of the encoded latent image over at least a portion of the primary image.
51. A method of applying an authentication image to an article according to claim 50 wherein the primary image comprises line work.
52. A method of applying an authentication image to an article according to claim 51 wherein the line work is a bar code.
53. The method of claim 50 wherein the transmittent printing medium is applied to the first portion of the printable surface of the article using a plurality of halftone screens, wherein the transmittent printing medium is applied at varying densities on the printable surface.
54. The method of claim 53 wherein the varied densities of the applied transmittent printing medium results in a gradual increase in a gloss level of the article as the distance from the latent image printed on the first portion of the printable surface increases.
56. A method of applying an authentication image to an article according to claim 50 wherein a maximum reflectivity difference between the at least a portion of the encoded latent image and the at least a portion of the primary image is no greater than 5% of the reflectivity of the at least a portion of the primary image.
57. A method of applying an authentication image to an article according to claim 50 wherein a maximum reflectivity difference between the at least a portion of the encoded latent image and the at least a portion of the primary image is in a range of about 0.5% to about 1.5% of the reflectivity of the at least a portion of the primary image.
58. ~A method of applying an authentication image to an article according to claim 43 wherein the action of printing the encoded latent image is carried out using a lithographic printing apparatus.
59. ~A method of applying an authentication image to an article according to claim 43 wherein the action of obtaining a digitized version of the authentication image comprises:
selecting the authentication image; and digitizing the authentication image.
60. ~A method of applying an authentication image to an article according to claim 43 wherein the action of encoding the digitized version of the authentication image comprises breaking down the digitized version of the authentication image into equally spaced parallel lines having a predetermined frequency.
61. ~A method of applying an authentication image to an article according to claim 60 wherein the predetermined frequency is in a range from about 50 lines per inch to about 150 lines per inch.
62. ~A method of applying an authentication image to an article according to claim 43 wherein the action of encoding the digitized version of the authentication image is carried out by a digital processing system programmed to encode the digitized version of the authentication image according to an encryption methodology that provides fox optically decoding the encoded latent image when the encoded latent image is printed on an article.
56. A method of applying an authentication image to an article according to claim 50 wherein a maximum reflectivity difference between the at least a portion of the encoded latent image and the at least a portion of the primary image is no greater than 5% of the reflectivity of the at least a portion of the primary image.
57. A method of applying an authentication image to an article according to claim 50 wherein a maximum reflectivity difference between the at least a portion of the encoded latent image and the at least a portion of the primary image is in a range of about 0.5% to about 1.5% of the reflectivity of the at least a portion of the primary image.
58. ~A method of applying an authentication image to an article according to claim 43 wherein the action of printing the encoded latent image is carried out using a lithographic printing apparatus.
59. ~A method of applying an authentication image to an article according to claim 43 wherein the action of obtaining a digitized version of the authentication image comprises:
selecting the authentication image; and digitizing the authentication image.
60. ~A method of applying an authentication image to an article according to claim 43 wherein the action of encoding the digitized version of the authentication image comprises breaking down the digitized version of the authentication image into equally spaced parallel lines having a predetermined frequency.
61. ~A method of applying an authentication image to an article according to claim 60 wherein the predetermined frequency is in a range from about 50 lines per inch to about 150 lines per inch.
62. ~A method of applying an authentication image to an article according to claim 43 wherein the action of encoding the digitized version of the authentication image is carried out by a digital processing system programmed to encode the digitized version of the authentication image according to an encryption methodology that provides fox optically decoding the encoded latent image when the encoded latent image is printed on an article.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/655,831 US6980654B2 (en) | 2003-09-05 | 2003-09-05 | System and method for authenticating an article |
| US10/655,831 | 2003-09-05 | ||
| PCT/US2004/027726 WO2005027401A1 (en) | 2003-09-05 | 2004-08-25 | System and method for authenticating an article |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2539453A1 true CA2539453A1 (en) | 2005-03-24 |
| CA2539453C CA2539453C (en) | 2011-05-24 |
Family
ID=34226210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2539453A Expired - Fee Related CA2539453C (en) | 2003-09-05 | 2004-08-25 | System and method for authenticating an article |
Country Status (15)
| Country | Link |
|---|---|
| US (2) | US6980654B2 (en) |
| EP (1) | EP1661293B1 (en) |
| JP (1) | JP2007505762A (en) |
| CN (1) | CN1846394B (en) |
| AU (1) | AU2004303346B2 (en) |
| BR (1) | BRPI0414124A (en) |
| CA (1) | CA2539453C (en) |
| ES (1) | ES2658823T3 (en) |
| HK (1) | HK1095949A1 (en) |
| IL (1) | IL174071A0 (en) |
| MX (1) | MXPA06002451A (en) |
| NO (1) | NO20061375L (en) |
| RU (1) | RU2316058C2 (en) |
| WO (1) | WO2005027401A1 (en) |
| ZA (1) | ZA200601867B (en) |
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| AU2002951963A0 (en) * | 2002-10-09 | 2002-10-24 | Commonwealth Scientific And Industrial Research Organisation | Method of combining images |
| AU2003902810A0 (en) * | 2003-06-04 | 2003-06-26 | Commonwealth Scientific And Industrial Research Organisation | Method of encoding a latent image |
| AU2003903501A0 (en) * | 2003-07-07 | 2003-07-24 | Commonwealth Scientific And Industrial Research Organisation | A method of forming a reflective authentication device |
| WO2005002880A1 (en) | 2003-07-07 | 2005-01-13 | Commonwealth Scientific And Industrial Research Organisation | Method of encoding a latent image |
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-
2003
- 2003-09-05 US US10/655,831 patent/US6980654B2/en not_active Expired - Lifetime
-
2004
- 2004-08-25 CN CN200480025555.6A patent/CN1846394B/en not_active Expired - Fee Related
- 2004-08-25 US US10/926,489 patent/US7226087B2/en active Active
- 2004-08-25 RU RU2006110942/09A patent/RU2316058C2/en not_active IP Right Cessation
- 2004-08-25 ES ES04782245.7T patent/ES2658823T3/en active Active
- 2004-08-25 MX MXPA06002451A patent/MXPA06002451A/en active IP Right Grant
- 2004-08-25 AU AU2004303346A patent/AU2004303346B2/en not_active Ceased
- 2004-08-25 JP JP2006526128A patent/JP2007505762A/en active Pending
- 2004-08-25 WO PCT/US2004/027726 patent/WO2005027401A1/en active Application Filing
- 2004-08-25 CA CA2539453A patent/CA2539453C/en not_active Expired - Fee Related
- 2004-08-25 BR BRPI0414124-5A patent/BRPI0414124A/en not_active Application Discontinuation
- 2004-08-25 EP EP04782245.7A patent/EP1661293B1/en not_active Expired - Fee Related
-
2006
- 2006-03-02 IL IL174071A patent/IL174071A0/en active IP Right Grant
- 2006-03-03 ZA ZA200601867A patent/ZA200601867B/en unknown
- 2006-03-27 NO NO20061375A patent/NO20061375L/en not_active Application Discontinuation
-
2007
- 2007-04-03 HK HK07103606.3A patent/HK1095949A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007505762A (en) | 2007-03-15 |
| MXPA06002451A (en) | 2006-06-20 |
| WO2005027401A1 (en) | 2005-03-24 |
| HK1095949A1 (en) | 2007-05-18 |
| AU2004303346A1 (en) | 2005-03-24 |
| RU2316058C2 (en) | 2008-01-27 |
| EP1661293A4 (en) | 2011-12-07 |
| CN1846394B (en) | 2011-08-17 |
| US6980654B2 (en) | 2005-12-27 |
| CA2539453C (en) | 2011-05-24 |
| AU2004303346B2 (en) | 2009-01-08 |
| BRPI0414124A (en) | 2006-10-31 |
| EP1661293A1 (en) | 2006-05-31 |
| US7226087B2 (en) | 2007-06-05 |
| US20050053234A1 (en) | 2005-03-10 |
| RU2006110942A (en) | 2006-08-10 |
| ZA200601867B (en) | 2007-05-30 |
| US20050052017A1 (en) | 2005-03-10 |
| IL174071A0 (en) | 2006-08-01 |
| EP1661293B1 (en) | 2018-01-24 |
| CN1846394A (en) | 2006-10-11 |
| NO20061375L (en) | 2006-03-27 |
| ES2658823T3 (en) | 2018-03-12 |
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| Date | Code | Title | Description |
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| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20200831 |