Spatial Security Features
First Claim
Patent Images
1. A method for creating a security feature, the method comprising:
- printing a patch of photoluminescent material on a substrate; and
printing a representation of a first barcode over the patch of photoluminescent material using a material selected to absorb radiation at one or more wavelengths that would cause the photoluminescent material to luminesce.
2 Assignments
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Accused Products
Abstract
A security feature is created by printing a patch of photoluminescent material on a substrate and printing a representation of a first barcode over the patch of photoluminescent material using a material selected to absorb radiation at one or more wavelengths that would cause the photoluminescent material to luminesce.
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Citations
27 Claims
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1. A method for creating a security feature, the method comprising:
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printing a patch of photoluminescent material on a substrate; and printing a representation of a first barcode over the patch of photoluminescent material using a material selected to absorb radiation at one or more wavelengths that would cause the photoluminescent material to luminesce. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A security feature comprising:
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a patch of photoluminescent material printed on a substrate; and a representation of a first barcode printed over the patch of photoluminescent material using a material selected to absorb radiation at one or more wavelengths that would cause the photoluminescent material to luminesce. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method for creating a covert barcode, the method comprising:
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applying a masking patch to a substrate; applying a transparent luminescent material over the masking patch; applying a laser imageable material over the transparent luminescent material; and exposing the laser imageable material to a laser to create the covert barcode.
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14. A covert barcode comprising:
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a masking patch applied to a substrate; a transparent luminescent material applied over the masking patch; a laser imageable material applied over the transparent luminescent material; and a covert barcode created by exposing the laser imageable material to a laser.
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15. A method for creating a covert barcode and an overt barcode, the method comprising:
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affixing a first laser imageable material to a substrate; affixing a second laser imageable material to the substrate; exposing the first laser imageable material to a laser to create the covert barcode; and exposing the second laser imageable material to a laser to create the overt barcode. - View Dependent Claims (16, 17, 18)
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19. A covert barcode and an overt barcode comprising:
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a first laser imageable material affixed to a substrate; a second laser imageable material affixed to the substrate; a covert barcode created by exposing the first laser imageable material to a laser; and an overt barcode created by exposing the second laser imageable material to a laser. - View Dependent Claims (20, 21, 22)
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23. A method for identifying an item, the method comprising:
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reading an overt barcode associated with the item; radiating a covert barcode associated with the item, causing the covert barcode to luminesce; reading the luminescing covert barcode; and using data read from the overt barcode and data read from the covert barcode to identify the item. - View Dependent Claims (24, 25, 26, 27)
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Specification