Photoluminescent Compositions, Methods of Manufacture and Novel Uses
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Abstract
A photoluminescent marking for authentication that includes at least one or more photoluminescent layers that substantially convert an electromagnetic radiation to an emission signature is disclosed. Also disclosed are methods of creating and using the inventive photoluminescent marking for authentication.
221 Citations
76 Claims
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1-51. -51. (canceled)
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52. A photoluminescent marking for authentication, said photoluminescent marking comprising:
one or more photoluminescent layers that substantially convert an electromagnetic radiation to an emission signature, said one or more photoluminescent layers comprising; a polymer and one or more photoluminescent materials, wherein an absorption spectrum of at least one of said one or more photoluminescent materials at least partially overlaps with the electromagnetic radiation. - View Dependent Claims (53, 54, 55, 56, 57, 58, 59, 60, 61, 62)
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63. A method for fabricating a marking for authentication, said method comprising:
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forming one or more photoluminescent layers that substantially convert an electromagnetic radiation to an emission signature, said one or more photoluminescent layers comprising; a polymer and one or more photoluminescent materials, wherein an absorption spectrum of at least one of said one or more photoluminescent materials at least partially overlaps with the electromagnetic radiation; and incorporating said one or more photoluminescent layers onto or into at least a portion of said marking, said marking being a photoluminescent marking. - View Dependent Claims (64, 65, 66, 67, 68)
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69. A method for identifying an object for authentication, said method comprising:
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applying a photoluminescent marking onto or into at least a portion of the object, said photoluminescent marking comprising; one or more photoluminescent layers that substantially convert an electromagnetic radiation to an emission signature, and wherein said photoluminescent marking is exposed to the electromagnetic radiation and the emission signature is detected. - View Dependent Claims (70, 71, 72, 73, 74, 75, 76)
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Specification