| 发明名称 |
COUNTERFEIT PREVENTION STRUCTURE AND MANUFACTURING METHOD THEREFOR |
| 摘要 |
A counterfeit prevention structure including a concave/convex formation layer having a surface and including a first concave/convex structure in a first portion of the surface and a second concave/convex structure in a second portion of the surface, and a reflective layer formed on the second concave/convex structure in the second portion. The first and second concave/convex structures are formed such that the first concave/convex structure has a depth-to-width ratio greater than a depth-to-width ratio of the second concave/convex structure, and that a light transmittance is higher in the first portion than in the second portion. |
| 申请公布号 |
US2015253729(A1) |
申请公布日期 |
2015.09.10 |
| 申请号 |
US201514715684 |
申请日期 |
2015.05.19 |
| 申请人 |
TOPPAN PRINTING CO., LTD. |
发明人 |
YASHIKI Kazuhiro |
| 分类号 |
G03H1/00;G02B3/00;G02B5/18 |
主分类号 |
G03H1/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A counterfeit prevention structure, comprising:
a concave/convex formation layer having a surface and including a first concave/convex structure in a first portion of the surface and a second concave/convex structure in a second portion of the surface; and a reflective layer formed on the second concave/convex structure in the second portion, wherein the first and second concave/convex structures are formed such that the first concave/convex structure has a depth-to-width ratio greater than a depth-to-width ratio of the second concave/convex structure, and that a light transmittance is higher in the first portion than in the second portion. |
| 地址 |
Taito-ku JP |
