| 发明名称 |
Unidirectional Opacity Watermark |
| 摘要 |
A laminar assembly including a first optically opaque layer defining a plurality of through-holes, a second optically opaque layer, an optically transparent inner layer between the inner surface of the first optically opaque layer and the inner surface of the second optically opaque layer, and a preprinted layer proximate the outer surface of at least one of the first and second optically opaque layers. The plurality of through-holes is at least partially filled with material from the optically transparent inner layer, and light is visibly transmitted in a single direction through the plurality of through-holes. Unidirectional opacity watermarks defined by the plurality of through-holes in the laminar assembly provide advantageous anti-counterfeiting measures, and are easy to view and authenticate, yet difficult to simulate. |
| 申请公布号 |
US2015085285(A1) |
申请公布日期 |
2015.03.26 |
| 申请号 |
US201414494102 |
申请日期 |
2014.09.23 |
| 申请人 |
MorphoTrust USA, LLC |
发明人 |
Jones Robert;Picardi Joseph;Mailloux Dennis |
| 分类号 |
B32B3/26;G01N21/59;G06K19/077;B32B37/26;B32B38/00 |
主分类号 |
B32B3/26 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A laminar assembly comprising:
a first optically opaque layer defining a plurality of through-holes; a second optically opaque layer; an optically transparent inner layer between the inner surface of the first optically opaque layer and the inner surface of the second optically opaque layer, and a preprinted layer proximate the outer surface of at least one of the first and second optically opaque layers, wherein the plurality of through-holes is at least partially filled with material from the optically transparent inner layer, and light is visibly transmitted in a single direction through the plurality of through-holes. |
| 地址 |
Billerica MA US |
