Laser engraved verification hologram and associated methods
AssigneeCrown Roll Leaf, Inc.
InventorJoseph J. Stanisci
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Abstract
A method for increasing the authentication effect of a verification hologram to be affixed to a protected document includes laser etching individualized indicia into the reflective layer of each hologram produced en masse on a moving, continuous web. The laser is finely focused and guided by a computer which records the data used to form the selected indicia, such data being referenced for comparison to provide verification of authenticity upon presentation by a bearer. In one embodiment, the data used to create the indicia is generated by a computer program which may include a random number generator.
Claims36
A method for increasing the authenticating effect of a hologram for affixation to a document comprises the steps of:
- (a) forming said hologram, said hologram having an embossable layer, a reflective layer deposited over said embossable layer and a carrier layer;
- and
- (b) selectively etching indicia into said hologram with a computer guided laser beam, said step of etching including removal of said reflective layer, said indicia being engraved through each of said embossable layer, said reflective layer and said carrier layer.
A hologram comprises:
- (a) an embossable layer having a microtextured surface;
- and
- (b) a light reflective layer deposited over said microtextured surface, said reflective layer and said embossable layer having indicia laser engraved therein.
Dependencies are inferred from the claim text.