Is a
Patent attributes
Current Assignee
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Gary A. Ross0
Date of Patent
April 20, 2010
0Patent Application Number
113019900
Date Filed
December 13, 2005
0Patent Primary Examiner
Patent abstract
A secure tag comprising: a carrier doped with one or more rare earth ions, and a barrier material associated with the carrier and substantially blocking low-wavelength radiation to shield the rare earth ions from low-wavelength radiation. This enables a secure tag to be fabricated that does not photoluminescence strongly in response to a low-wavelength excitation radiation source.
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