JPS6134192B2 - - Google Patents
Info
- Publication number
- JPS6134192B2 JPS6134192B2 JP57006219A JP621982A JPS6134192B2 JP S6134192 B2 JPS6134192 B2 JP S6134192B2 JP 57006219 A JP57006219 A JP 57006219A JP 621982 A JP621982 A JP 621982A JP S6134192 B2 JPS6134192 B2 JP S6134192B2
- Authority
- JP
- Japan
- Prior art keywords
- document
- light
- forgery
- scattering
- substrate
- 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 78
- 238000000034 method Methods 0.000 claims description 34
- 239000000758 substrate Substances 0.000 claims description 33
- 238000001514 detection method Methods 0.000 claims description 24
- 230000002265 prevention Effects 0.000 claims description 17
- 230000008520 organization Effects 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 7
- 230000001427 coherent effect Effects 0.000 claims description 6
- 238000007689 inspection Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 230000004907 flux Effects 0.000 claims description 2
- 239000012780 transparent material Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 12
- 230000006870 function Effects 0.000 description 12
- 239000010410 layer Substances 0.000 description 11
- 238000009826 distribution Methods 0.000 description 10
- 239000000123 paper Substances 0.000 description 7
- 239000011241 protective layer Substances 0.000 description 5
- 238000000691 measurement method Methods 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 230000000737 periodic effect Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005305 interferometry Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Landscapes
- Inspection Of Paper Currency And Valuable Securities (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH72081 | 1981-02-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57139872A JPS57139872A (en) | 1982-08-30 |
| JPS6134192B2 true JPS6134192B2 (fr) | 1986-08-06 |
Family
ID=4193608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57006219A Granted JPS57139872A (en) | 1981-02-03 | 1982-01-20 | Method of and apparatus for preventing faking of document |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57139872A (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006520923A (ja) * | 2003-04-22 | 2006-09-14 | オーファオデー キネグラム アーゲー | ミクロ構造およびミクロ構造の形成方法 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU584035B2 (en) * | 1985-03-01 | 1989-05-11 | Kenneth John Hayden | Holographic security devices and systems |
| CA2496296A1 (fr) * | 2002-08-20 | 2004-03-04 | Cyvera Corporation | Microparticules codees basees sur un reseau de diffraction pour experiences multiplexees |
| BRPI0508635A (pt) * | 2004-03-12 | 2007-08-07 | Ingenia Technology Ltd | dispositivo de impressão, e, aparelhos e métodos para criar artigos autenticáveis e para verificar a autenticidade de artigos |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5197333A (fr) * | 1975-01-16 | 1976-08-26 | ||
| JPS5223232A (en) * | 1975-08-14 | 1977-02-22 | Landis & Gyr Ag | Device for storing and reading genuine information |
-
1982
- 1982-01-20 JP JP57006219A patent/JPS57139872A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5197333A (fr) * | 1975-01-16 | 1976-08-26 | ||
| JPS5223232A (en) * | 1975-08-14 | 1977-02-22 | Landis & Gyr Ag | Device for storing and reading genuine information |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006520923A (ja) * | 2003-04-22 | 2006-09-14 | オーファオデー キネグラム アーゲー | ミクロ構造およびミクロ構造の形成方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57139872A (en) | 1982-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4537504A (en) | Security blank with enhanced authenticating features, and a method and an apparatus for determining the genuineness of the security blank | |
| JPS5882371A (ja) | 偽造防止マ−クを備えた書類およびその真偽検査方法 | |
| JPS6230676B2 (fr) | ||
| RU2175777C2 (ru) | Носитель информации и устройство для проверки его аутентичности | |
| JP4010373B2 (ja) | 回折面パターン | |
| US5497227A (en) | System for determining the authenticity of an object | |
| EP0568185B1 (fr) | Système d'identification d'authenticité d'un article | |
| US5760961A (en) | Optical information carrier having diffractive features and diffraction modulation layers | |
| US5461239A (en) | Method and apparatus for coding and reading information in diffraction gratings using the divergence of diffracted light beams | |
| JPS6046470B2 (ja) | 光学読取り装置 | |
| JPH02116805A (ja) | 回折素子 | |
| US20050082819A1 (en) | Security element comprising micro- and macrostructures | |
| JP3652487B2 (ja) | 対象物の識別用媒体及び識別構造及び識別方法 | |
| US5347111A (en) | Authenticity identifying structure for an article | |
| RU2286887C2 (ru) | Защитный элемент в качестве защиты от фотокопирования | |
| JPS6134192B2 (fr) | ||
| JPH09161121A (ja) | 物体の表面状態検出装置 | |
| JP4774687B2 (ja) | ブレーズド格子を含む物品の検証方法及び装置及び物品 | |
| US20040066546A1 (en) | Double hologram | |
| JPH07320014A (ja) | 情報記録媒体及びその製造方法 | |
| JP2004078620A (ja) | 真正性識別方法および真正性識別装置 | |
| JP4270808B2 (ja) | 光回折構造による隠しパターンの判別方法 | |
| JPH08501646A (ja) | 回折面データ検出器 | |
| JPH06131511A (ja) | ホログラムを用いた確認方法および確認装置 | |
| JP6175890B2 (ja) | 偽造防止媒体および偽造防止媒体の読取方法 |