| 主权项 |
1. An assembly for forming a document comprising:
a clear plastic core layer having first and second, spaced apart, surfaces, extending generally parallel to each other; a pattern embossed on, or in, said first surface of the dear plastic core layer; a metal or a metal compound vapor deposited on the embossed pattern to form an embossed metalized pattern whereby light incident on the embossed metalized pattern produces a reflected light pattern corresponding to the embossed metalized pattern and wherein the vapor deposited metal, or metal compound, forms a layer which is thin enough to allow see-through; and a selected number N of clear plastic layers formed on top of the embossed metalized pattern and a like number N of clear plastic buffer layers formed below the second surface of the clear plastic core layer; where N is an integer equal to, or greater than, one; said selected layers for forming a document having an embossed metalized pattern located along said first surface of the clear plastic core layer so as to be centrally located relative to a direction perpendicular to said first and second surfaces of the clear plastic core layer and protected and also for inhibiting the unauthorized alteration of the embossed metalized pattern while enabling the embossed metalized pattern to be visible; and wherein selected ones of said N clear plastic layers include selected information; and wherein a window is formed within the pattern to enable the selected information to be seen. |
