Multi-spectral holographic security marker, method for its manufacture and holographic security system
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United States of America Patent
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May 17, 2016
Issued Date -
N/A
app pub date -
Sep 3, 2010
filing date -
Sep 3, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A multi-spectral holographic security marker is made by a novel method according to the invention involving a replay frequency shift to one or more final replay frequencies of a part or parts only of a recorded image plane volume hologram. The marker comprises an optional surface hologram and an image plane volume hologram. The volume hologram is divided into discrete areas which have mutually different final replay frequencies. The security information carried by the marker is a combination of the size and shape of those different replay areas together with the hologram content itself which is spread across the different replay areas. If the marker also includes a surface hologram, then that is preferably aligned with the junctions between the replay areas. Preferably one volume hologram replay frequency is in the visible spectrum and the other is in the invisible part of the spectrum (IR or UV).
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| WO | A1 | WO2012028835 | Sep 03, 2010 |
| EP | B1 | EP2612204 | Sep 03, 2010 |
International Classification(s)
- 2010 Application Filing Year
- B42D Class
- 166 Applications Filed
- 110 Patents Issued To-Date
- 66.27 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- B42D Class
- 0 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 17, 2027 |
