WO2008133113A1 - True/false judging method, discriminator and polarizer - Google Patents
True/false judging method, discriminator and polarizer Download PDFInfo
- Publication number
- WO2008133113A1 WO2008133113A1 PCT/JP2008/057351 JP2008057351W WO2008133113A1 WO 2008133113 A1 WO2008133113 A1 WO 2008133113A1 JP 2008057351 W JP2008057351 W JP 2008057351W WO 2008133113 A1 WO2008133113 A1 WO 2008133113A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- true
- false
- layer
- judging
- discriminator
- Prior art date
Links
- 230000003449 preventive effect Effects 0.000 abstract 5
- 239000010409 thin film Substances 0.000 abstract 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/0005—Adaptation of holography to specific applications
- G03H1/0011—Adaptation of holography to specific applications for security or authentication
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
- G03H1/0252—Laminate comprising a hologram layer
- G03H1/0256—Laminate comprising a hologram layer having specific functional layer
-
- 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
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/328—Diffraction gratings; Holograms
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2223/00—Optical components
- G03H2223/14—Diffuser, e.g. lens array, random phase mask
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2250/00—Laminate comprising a hologram layer
- G03H2250/42—Reflective layer
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Credit Cards Or The Like (AREA)
- Optical Elements Other Than Lenses (AREA)
- Polarising Elements (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
[PROBLEMS TO BE SOLVED] It is a problem to provide a method for making it possible to judge whether a subject is true or false and a tool for judging whether it is true or false without being influenced by a shine of metal used in the true-false judgment of a forgery preventive body with a reflective thin film layer of a metallic thin film or the like. [MEANS FOR SOLVING THE PROBLEM] A true/false judging method for judging whether a sheet-like counterfeit preventive structure provided with at least a light reflective thin film layer and a counterfeit preventive layer is true or false is carried out by using a discriminator. The method is characterized in that the true/false judgment is carried out by using the discriminator provided with a light diffusive true/false judging layer for judging whether the sheet-like counterfeit preventive structure is true or false or a true/false judging layer and a light diffusive layer for judging whether the sheet-like counterfeit preventive structure is true or false; a haze of the light diffusive true/false judging layer or the light diffusing layer ranges from 50-95%; and a total light-ray transmission rate ranges from 50-100%.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009511811A JP5375603B2 (en) | 2007-04-18 | 2008-04-15 | Authenticity determination method and discriminator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-109120 | 2007-04-18 | ||
JP2007109120 | 2007-04-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008133113A1 true WO2008133113A1 (en) | 2008-11-06 |
Family
ID=39925571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/057351 WO2008133113A1 (en) | 2007-04-18 | 2008-04-15 | True/false judging method, discriminator and polarizer |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP5375603B2 (en) |
WO (1) | WO2008133113A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011033790A (en) * | 2009-07-31 | 2011-02-17 | Fujifilm Corp | Forgery preventing medium and forgery preventing seal |
JP2012226260A (en) * | 2011-04-22 | 2012-11-15 | Toppan Printing Co Ltd | Forgery prevention medium |
JP2013007887A (en) * | 2011-06-24 | 2013-01-10 | Fujifilm Corp | Method for manufacturing article having birefringence |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0933721A (en) * | 1995-07-25 | 1997-02-07 | Arisawa Mfg Co Ltd | Translucent polarizing plate for display device, its production and display device |
JPH09193332A (en) * | 1996-01-16 | 1997-07-29 | Dainippon Printing Co Ltd | Glare protecting film |
JPH10119067A (en) * | 1996-10-22 | 1998-05-12 | Dainippon Printing Co Ltd | Manufacture of triacetylcellulose film having antigrare property |
JP2001096997A (en) * | 1999-10-01 | 2001-04-10 | Toppan Printing Co Ltd | Method for preventing forgery of ovd forming medium, ovd forming medium having forgery prevention applied and ovd seal using the ovd forming medium |
JP2001096999A (en) * | 1999-10-01 | 2001-04-10 | Toppan Printing Co Ltd | Method for preventing forgery of ovd forming sheet, ovd forming sheet having forgery prevention applied and ovd seal using the ovd forming sheet |
JP2001105800A (en) * | 1999-08-04 | 2001-04-17 | Toppan Printing Co Ltd | Forgery preventing method for image receiving sheet, image receiving sheet provided with forgery prevention function and image display body using the image receiving sheet |
JP2002248712A (en) * | 2001-02-23 | 2002-09-03 | Toppan Printing Co Ltd | Anti-glaring sheet |
JP2004004777A (en) * | 2002-04-24 | 2004-01-08 | Dainippon Printing Co Ltd | Glare shield film, polarizing element and picture display apparatus |
WO2005073763A1 (en) * | 2004-01-29 | 2005-08-11 | Nippon Paint Co., Ltd. | Antidazzle coating composition, antidazzle film and process for producing the same |
-
2008
- 2008-04-15 WO PCT/JP2008/057351 patent/WO2008133113A1/en active Application Filing
- 2008-04-15 JP JP2009511811A patent/JP5375603B2/en not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0933721A (en) * | 1995-07-25 | 1997-02-07 | Arisawa Mfg Co Ltd | Translucent polarizing plate for display device, its production and display device |
JPH09193332A (en) * | 1996-01-16 | 1997-07-29 | Dainippon Printing Co Ltd | Glare protecting film |
JPH10119067A (en) * | 1996-10-22 | 1998-05-12 | Dainippon Printing Co Ltd | Manufacture of triacetylcellulose film having antigrare property |
JP2001105800A (en) * | 1999-08-04 | 2001-04-17 | Toppan Printing Co Ltd | Forgery preventing method for image receiving sheet, image receiving sheet provided with forgery prevention function and image display body using the image receiving sheet |
JP2001096997A (en) * | 1999-10-01 | 2001-04-10 | Toppan Printing Co Ltd | Method for preventing forgery of ovd forming medium, ovd forming medium having forgery prevention applied and ovd seal using the ovd forming medium |
JP2001096999A (en) * | 1999-10-01 | 2001-04-10 | Toppan Printing Co Ltd | Method for preventing forgery of ovd forming sheet, ovd forming sheet having forgery prevention applied and ovd seal using the ovd forming sheet |
JP2002248712A (en) * | 2001-02-23 | 2002-09-03 | Toppan Printing Co Ltd | Anti-glaring sheet |
JP2004004777A (en) * | 2002-04-24 | 2004-01-08 | Dainippon Printing Co Ltd | Glare shield film, polarizing element and picture display apparatus |
WO2005073763A1 (en) * | 2004-01-29 | 2005-08-11 | Nippon Paint Co., Ltd. | Antidazzle coating composition, antidazzle film and process for producing the same |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011033790A (en) * | 2009-07-31 | 2011-02-17 | Fujifilm Corp | Forgery preventing medium and forgery preventing seal |
JP2012226260A (en) * | 2011-04-22 | 2012-11-15 | Toppan Printing Co Ltd | Forgery prevention medium |
JP2013007887A (en) * | 2011-06-24 | 2013-01-10 | Fujifilm Corp | Method for manufacturing article having birefringence |
Also Published As
Publication number | Publication date |
---|---|
JPWO2008133113A1 (en) | 2010-07-22 |
JP5375603B2 (en) | 2013-12-25 |
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