EA200700864A1 - METHOD OF PROTECTION AND IDENTIFICATION OF DOCUMENTS - Google Patents
METHOD OF PROTECTION AND IDENTIFICATION OF DOCUMENTSInfo
- Publication number
- EA200700864A1 EA200700864A1 EA200700864A EA200700864A EA200700864A1 EA 200700864 A1 EA200700864 A1 EA 200700864A1 EA 200700864 A EA200700864 A EA 200700864A EA 200700864 A EA200700864 A EA 200700864A EA 200700864 A1 EA200700864 A1 EA 200700864A1
- Authority
- EA
- Eurasian Patent Office
- Prior art keywords
- luminescence
- luminescent
- polarized light
- polarization
- degree
- Prior art date
Links
Landscapes
- Credit Cards Or The Like (AREA)
- Polarising Elements (AREA)
- Printing Methods (AREA)
Abstract
Изобретение относится к созданию средств защиты от подделки документов, представляющих ценность, и маркированной продукции. Предложен способ защиты и идентификации документов и других объектов, основанный на формировании на поверхности объекта по меньшей мере одной защитной зоны путем нанесения на нее метки из люминесцентного материала, изменяющего цвет люминесценции при изменении условий наблюдения. Новизна предложения состоит в том, что в качестве люминесцентного материала используют материал, степень поляризации люминесценции которого при возбуждении линейно поляризованным светом изменяется от величин в диапазоне 0,5-0,25 до величин в диапазоне 0,2-(-0,33) при переходе от коротковолнового к длинноволновому краю спектра так, чтобы обеспечить различие цвета люминесценции при наблюдении ее во взаимно перпендикулярных компонентах поляризованного света. Материал защитной зоны выполнен, по меньшей мере, частично прозрачным и содержит неориентированные люминесцирующие центры по меньшей мере двух различных типов, обладающих различающимися спектрами люминесценции и различающимися значениями степени поляризации люминесценции при возбуждении линейно поляризованным светом. Люминесцирующими центрами могут являться сложные органические молекулы, либо редкоземельные ионы, либо частицы люминесцирующих пигментов. В качестве люминесцирующих центров также могут быть использованы сложные органические молекулы двух типов, при этом молекулы первого типа при возбуждении линейно поляризованным светом излучают поляризованную люминесценцию со степенью поляризации в диапазоне 0,5-0,25, а молекулы второго типа при тех же условияхThe invention relates to the creation of means of protection against forgery of documents of value, and labeled products. A method for protecting and identifying documents and other objects is proposed, based on the formation of at least one protective zone on the object's surface by applying a label from a luminescent material that changes the color of the luminescence as the observation conditions change. The novelty of the proposal is that a material is used as a luminescent material, the degree of polarization of luminescence of which upon excitation with linearly polarized light changes from values in the range 0.5-0.25 to values in the range 0.2 - (- 0.33) transition from the short-wave to the long-wave edge of the spectrum so as to ensure the difference in the color of the luminescence when observed in the mutually perpendicular components of polarized light. The protective zone material is made at least partially transparent and contains non-oriented luminescent centers of at least two different types with differing luminescence spectra and differing values of the degree of polarization of the luminescence upon excitation with linearly polarized light. Luminescent centers can be complex organic molecules, either rare-earth ions, or particles of luminescent pigments. Complex organic molecules of two types can also be used as luminescent centers. In this case, molecules of the first type, when excited by linearly polarized light, emit polarized luminescence with a degree of polarization in the range of 0.5-0.25, and molecules of the second type
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EA200700864A EA200700864A1 (en) | 2007-04-02 | 2007-04-02 | METHOD OF PROTECTION AND IDENTIFICATION OF DOCUMENTS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EA200700864A EA200700864A1 (en) | 2007-04-02 | 2007-04-02 | METHOD OF PROTECTION AND IDENTIFICATION OF DOCUMENTS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EA010008B1 EA010008B1 (en) | 2008-06-30 |
| EA200700864A1 true EA200700864A1 (en) | 2008-06-30 |
Family
ID=40863249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EA200700864A EA200700864A1 (en) | 2007-04-02 | 2007-04-02 | METHOD OF PROTECTION AND IDENTIFICATION OF DOCUMENTS |
Country Status (1)
| Country | Link |
|---|---|
| EA (1) | EA200700864A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2189800B (en) * | 1986-04-07 | 1990-03-14 | Michael Anthony West | Marking of articles |
| DE19860093B4 (en) * | 1998-12-23 | 2008-10-09 | Giesecke & Devrient Gmbh | Authenticity feature combination for value documents |
| DE10346634A1 (en) * | 2003-10-08 | 2005-05-12 | Giesecke & Devrient Gmbh | value document |
| DE10346687A1 (en) * | 2003-10-08 | 2005-05-04 | Giesecke & Devrient Gmbh | Coding system for value documents |
-
2007
- 2007-04-02 EA EA200700864A patent/EA200700864A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EA010008B1 (en) | 2008-06-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
Designated state(s): AM AZ KZ KG MD TJ TM |
|
| MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
Designated state(s): BY RU |