TW324811B - Holographic hidden pattern anti-counterfeit method - Google Patents
Holographic hidden pattern anti-counterfeit methodInfo
- Publication number
- TW324811B TW324811B TW085109885A TW85109885A TW324811B TW 324811 B TW324811 B TW 324811B TW 085109885 A TW085109885 A TW 085109885A TW 85109885 A TW85109885 A TW 85109885A TW 324811 B TW324811 B TW 324811B
- Authority
- TW
- Taiwan
- Prior art keywords
- holographic
- pattern
- hidden pattern
- holographic pattern
- hidden
- Prior art date
Links
Landscapes
- Holo Graphy (AREA)
Abstract
A Holographic hidden pattern anti-counterfeit method is claimed, in which on hologram (10) there are two regions recording foreground holographic pattern (11) and background holographic pattern (12). Under normal light source illumination background holographic pattern (12) looks like local image of foreground holographic pattern (11). When laser light (50) is lit to background holographic pattern (12) on hologram (10) by proper condition, there will generate first time diffraction light (60), which again lights on diffractive optical component (20), then there will generate second time diffraction light (70), which will form image of hidden pattern (80), originally invisible under normal light source, on ground glass (30) of consciously calculated position, then by decoder (40) performing hidden pattern (80) image grabbing and judging its truth.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW085109885A TW324811B (en) | 1996-08-14 | 1996-08-14 | Holographic hidden pattern anti-counterfeit method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW085109885A TW324811B (en) | 1996-08-14 | 1996-08-14 | Holographic hidden pattern anti-counterfeit method |
Publications (1)
Publication Number | Publication Date |
---|---|
TW324811B true TW324811B (en) | 1998-01-11 |
Family
ID=58262113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW085109885A TW324811B (en) | 1996-08-14 | 1996-08-14 | Holographic hidden pattern anti-counterfeit method |
Country Status (1)
Country | Link |
---|---|
TW (1) | TW324811B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6351537B1 (en) | 1998-10-05 | 2002-02-26 | 3M Innovative Properties Company | Verifiable holographic article |
CN106085231A (en) * | 2016-05-17 | 2016-11-09 | 武汉华工图像技术开发有限公司 | A kind of thermoprint aqueous mould release and preparation method thereof |
-
1996
- 1996-08-14 TW TW085109885A patent/TW324811B/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6351537B1 (en) | 1998-10-05 | 2002-02-26 | 3M Innovative Properties Company | Verifiable holographic article |
CN106085231A (en) * | 2016-05-17 | 2016-11-09 | 武汉华工图像技术开发有限公司 | A kind of thermoprint aqueous mould release and preparation method thereof |
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