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OwnerNigel C. Abraham, Holger Hofmann +1inventors
InventorsNIGEL C. ABRAHAM, Holger Hofmann, Raymond L. Keating
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A method is provided for mastering optically variable devices (OVDs) used to authenticate optical discs. The method generally includes the steps of providing a laser beam recorder (LBR), introducing a substrate to the LBR, and exposing a portion of the substrate to the LBR. The mastering system thus includes the LBR, which has a laser that emits a beam, a processor or computer for programming or otherwise controlling the beam in order to expose the substrate and create the desired optical effect. Depending on the material used for the substrate, the exposure is then developed, if necessary, and processed to generate a master for the OVD. The OVD can then be replicated in order to provide authentic resultant products or articles, such as optical discs.
A method of mastering an optically variable device comprising:
An optically variable device mastering system for providing at least one of an optically variable device master and a stamper for replicating an optically variable device, the mastering system comprising:
A security containing article comprising:
Dependencies are inferred from the claim text.