发明名称 Security elements with luminescent characteristics
摘要 The unit has a carrier substrate, and a fully or partially covered coating that is attached on the substrate, where the coating contains a nanoparticle of doped semiconductor material. Cadmium selenide, zinc selenide, cadmium sulfide, zinc sulfide, zinc oxide and lead selenide are applied as semiconductor material. Dimension of the nanoparticle amounts to 1-10 nanometers. The nanoparticle is attached on the embossed finish of an optical active unit, such as hologram, surface structure, diffraction grating and kinegram.
申请公布号 EP1972464(B1) 申请公布日期 2012.12.19
申请号 EP20080004908 申请日期 2008.03.17
申请人 HUECK FOLIEN GES.M.B.H. 发明人 SCHMIDEGG, KLAUS, DR.
分类号 B42D15/00;B41M3/14;B42D15/10;B82Y10/00;B82Y30/00 主分类号 B42D15/00
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