Patent · US Active

Optically variable device mastering system, method of authenticating articles employing the same, and resultant article

US8921011B2 · kind B2 · utility

0Cited by

4References

20Claims

0Family size

Assignee

3dcd, LLC · US

Inventors

Nigel Abraham · Ponteland, GB
Holger Hofmann · Bad Mergentheim, DE
Raymond L. Keating · Topanga, US

Key dates

Filing date	Apr 23, 2013
Grant date	Dec 30, 2014
Priority date	—
Expiry date	Apr 23, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24802
WIPO fieldOptics
WIPO sectorInstruments

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.