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Laminated identification document

  • US 8,304,061 B2
  • Filed: 11/05/2007
  • Issued: 11/06/2012
  • Est. Priority Date: 11/06/2006
  • Status: Active Grant
First Claim
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1. A secure personalized laser markable laminated RF identification document for recording a predetermined identification image and an electromagnetic signature thereon, the identification document comprising a compatibilising layer, bonded on each surface of the compatibilizing layer to an adjoining laminate layer, at least one of which is an image receiving laminate layer, the compatibilizing layer including on at least one surface an imaging material that can be laser marked with laser radiation at power densities less than about 1 watt/micron to form the predetermined identification image and maintain cohesive bonding with the adjoining laminate layers, wherein the adjoining image receiving laminate layer overlaying the surface that includes the imaging material is a conducting or a semiconducting material that is opaque or partially opaque, and is absorbent to the laser radiation and after exposure to the laser radiation the image receiving laminate layer becomes transparent and the laser radiation forms an antennae on the image receiving laminate layer with an electromagnetic signature which is RF readable.

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