| 摘要 |
An identification card and a method for formation of the card are disclosed. The identification card comprises an optical identification element formed upon a surface of the identification card and an optical stripe formed on the optical identification element and having at least a portion formed substantially from a single material. The single material is configured to have a diffractive pattern formed thereon by exposure to a laser. The diffractive pattern is capable of retaining information that is, for example, unique to a cardholder and being readable by a light source external to the identification card.
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