基本信息:
- 专利标题： RETROCHROMIC ARTICLES HAVING REGIONS OF DIFFERENT RETROREFLECTIVE COLORS
- 专利标题（中）：RETRO CHROME对象的不同颜色的回射HIGHER。
- 申请号：EP03711401.4 申请日：2003-03-03
- 公开(公告)号：EP1495348B1 公开(公告)日：2009-07-15
- 发明人： BUDD, Kenton, D. , FREY, Matthew, H. , BAILEY, John, E.
- 申请人： 3M Innovative Properties Company
- 申请人地址： 3M Center P.O.Box 33427 St. Paul MN 55133-3427 US
- 专利权人： 3M Innovative Properties Company
- 当前专利权人： 3M Innovative Properties Company
- 当前专利权人地址： 3M Center P.O.Box 33427 St. Paul MN 55133-3427 US
- 代理机构： Vossius & Partner
- 优先权： US122520 20020411
- 国际公布： WO2003087896 20031023
- 主分类号： G02B5/128
- IPC分类号： G02B5/128 ; B29D11/00
摘要：
Retrochromic articles (300) have a retrochromic pattern comprising first and second viewable retroreflective regions (340, 342), wherein at least one viewable retroreflective region comprises a plurality of intrinsically retrochromic beads (330). Methods for making such articles are also provided. Articles according to the present invention have covert security features, and may be used, for example, to authenticate security articles.
公开/授权文献:
IPC结构图谱:
| G | 物理 |
| --G02 | 光学 |
| ----G02B | 光学元件、系统或仪器 |
| ------G02B5/00 | 除透镜外的光学元件 |
| --------G02B5/04 | .棱镜 |
| ----------G02B5/122 | ..立体角、三边或三面反射型 |
| ------------G02B5/128 | ...被嵌入基体的透明球体 |