Disk with holographic security label applied thereto and method of applying label
AssigneeE. I. Du Pont de Nemours and Company
InventorMichael Jay Anderson
Life of this patent
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Abstract
An optical disk has a holographic security label applied in a recessed portion of the disk. An associated method of applying a holographic label to a recessed portion of an optical disk is also described.
Claims8
In a disk having a top surface and a bottom surface joined by a peripheral outer edge and an opposed inner edge that defines a circular hole at the center of the disk, the disk containing recorded information disposed between the outer edge and a circular hub adjacent the inner edge with the hub supporting a holographic label for the disk, the improvement comprising the holographic label being photopolymerized film containing a hologram disposed in a recessed portion of the hub between the top and bottom surfaces, wherein the photopolymerized film containing the hologram is pressed into the recessed portion.
A method of applying a holographic security label to a disk having a top surface and a bottom surface joined by a peripheral outer edge and an opposed inner edge that defines a circular hole at the center of the disk, the disk containing recorded information disposed between the outer edge and a circular hub adjacent the inner edge, comprising the steps of:
- a) positioning photopolymerized film containing a hologram adjacent a recessed portion in the hub between the top and bottom surfaces;
- and
- b) pressing the film into the recessed portion of the hub.
Dependencies are inferred from the claim text.