Kinoform syntesis as an improved method to form a concealed image in optical security devices
It is well known that one of the basic functions of security holograms is the maximal complication of their non-authorized reproduction, in other words – counterfeiting. To solve the problem, concealed images that can be observed only under special conditions are placed into a structure of the holog...
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| Veröffentlicht in: | Semiconductor Physics Quantum Electronics & Optoelectronics |
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| Datum: | 2006 |
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Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
2006
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| Zitieren: | Kinoform syntesis as an improved method to form a concealed image in optical security devices / E.V. Braginets, V.I. Girnyk, S.A. Kostyukevych, V.N. Kurashov, N. Moskalenko, A.A. Soroka // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2006. — Т. 9, № 4. — С. 85-90. — Бібліогр.: 19 назв. — англ. |
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Braginets, E.V. Girnyk, V.I. Kostyukevych, S.A. Kurashov, V.N. Soroka, A.A. Moskalenko, N. 2017-06-15T03:48:16Z 2017-06-15T03:48:16Z 2006 Kinoform syntesis as an improved method to form a concealed image in optical security devices / E.V. Braginets, V.I. Girnyk, S.A. Kostyukevych, V.N. Kurashov, N. Moskalenko, A.A. Soroka // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2006. — Т. 9, № 4. — С. 85-90. — Бібліогр.: 19 назв. — англ. 1560-8034 PACS 42.40.Jv https://nasplib.isofts.kiev.ua/handle/123456789/121642 It is well known that one of the basic functions of security holograms is the maximal complication of their non-authorized reproduction, in other words – counterfeiting. To solve the problem, concealed images that can be observed only under special conditions are placed into a structure of the hologram. A popular way to place concealed image in Diffractive Optically Variable Image Device (DOVID) is integration into DOVID's structure of a Concealed Laser-Readable Image (CLRI). Traditionally CLRI is a 2D Computer-Generated Hologram (2D CGH), which is a digitized Interference Fringe Data (IFD) structure, computed under the scheme of Fourier-hologram synthesis. Such hologram provides inspection of the second level with portable laser reading devices. While it is being read, two (+/– 1 order of diffraction) identical images are formed. It is very interesting to achieve a CGH, which restores the image only in one diffractive order or two different images in +1 and –1 orders of diffraction. en Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України Semiconductor Physics Quantum Electronics & Optoelectronics Kinoform syntesis as an improved method to form a concealed image in optical security devices Article published earlier |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Kinoform syntesis as an improved method to form a concealed image in optical security devices |
| spellingShingle |
Kinoform syntesis as an improved method to form a concealed image in optical security devices Braginets, E.V. Girnyk, V.I. Kostyukevych, S.A. Kurashov, V.N. Soroka, A.A. Moskalenko, N. |
| title_short |
Kinoform syntesis as an improved method to form a concealed image in optical security devices |
| title_full |
Kinoform syntesis as an improved method to form a concealed image in optical security devices |
| title_fullStr |
Kinoform syntesis as an improved method to form a concealed image in optical security devices |
| title_full_unstemmed |
Kinoform syntesis as an improved method to form a concealed image in optical security devices |
| title_sort |
kinoform syntesis as an improved method to form a concealed image in optical security devices |
| author |
Braginets, E.V. Girnyk, V.I. Kostyukevych, S.A. Kurashov, V.N. Soroka, A.A. Moskalenko, N. |
| author_facet |
Braginets, E.V. Girnyk, V.I. Kostyukevych, S.A. Kurashov, V.N. Soroka, A.A. Moskalenko, N. |
| publishDate |
2006 |
| language |
English |
| container_title |
Semiconductor Physics Quantum Electronics & Optoelectronics |
| publisher |
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України |
| format |
Article |
| description |
It is well known that one of the basic functions of security holograms is the maximal complication of their non-authorized reproduction, in other words – counterfeiting. To solve the problem, concealed images that can be observed only under special conditions are placed into a structure of the hologram. A popular way to place concealed image in Diffractive Optically Variable Image Device (DOVID) is integration into DOVID's structure of a Concealed Laser-Readable Image (CLRI). Traditionally CLRI is a 2D Computer-Generated Hologram (2D CGH), which is a digitized Interference Fringe Data (IFD) structure, computed under the scheme of Fourier-hologram synthesis. Such hologram provides inspection of the second level with portable laser reading devices. While it is being read, two (+/– 1 order of diffraction) identical images are formed. It is very interesting to achieve a CGH, which restores the image only in one diffractive order or two different images in +1 and –1 orders of diffraction.
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| issn |
1560-8034 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/121642 |
| citation_txt |
Kinoform syntesis as an improved method to form a concealed image in optical security devices / E.V. Braginets, V.I. Girnyk, S.A. Kostyukevych, V.N. Kurashov, N. Moskalenko, A.A. Soroka // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2006. — Т. 9, № 4. — С. 85-90. — Бібліогр.: 19 назв. — англ. |
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| first_indexed |
2025-12-07T15:48:56Z |
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2025-12-07T15:48:56Z |
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