| 申请日期 | 2026-04-23 | 申请号 | WOUS07025502 |
| 公开（公告）号 | WO2008085270A1 | 公开（公告）日 | 2008-07-17 |
| 公开国别 | WO | 申请人省市代码 | 全国 |
| 申请人 | NCR CORPORATION; ROTH Joseph D | ||
| 简介 | A security feature having unique photoluminescent properties and a method for making the security feature. The security feature includes a silica carrier and a rare earth dopant dispersed throughout at least a portion of the silica carrier. The rare earth dopant includes a rare earth ion to which ligands and/or inorganic sensitizers are associated. The ligands and/or inorganic sensitizers are positioned to absorb energy and transfer the absorbed energy to the rare earth ion. | ||
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