Photonic crystal security device and method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 1, 2016
Grant Date -
Oct 7, 2010
app pub date -
Oct 14, 2008
filing date -
Oct 19, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method of forming an optically variable security device is provided. In the method, a photonic crystal material is provided and a process is performed upon the material which causes deformation of the material so as to form a first region (A) for which incident light received by the crystal material is selectively reflected or transmitted to generate a first optically variable effect, and a second region (B) for which incident light received generates an optical effect, different from the first optically variable effect. Corresponding devices having first and second regions are also disclosed.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully