发明名称 FILM AND OPTICAL ANTI-COUNTERFEITING ELEMENT
摘要 The invention relates to a film (2), particularly an embossed film, laminating film or sticker film, and to an optical anti-counterfeiting element. The film (2) comprises a supporting layer (21) and a replication layer (23). The film also comprises a layer (24) made of a liquid crystal material that is applied to the replication layer. A diffractive structure (27) for orienting the liquid crystal material is embossed into the surface of the replication layer facing the layer that is made of liquid crystal material. This structure has at least two partial areas with different directions of orientation of the embossed structure.
申请公布号 KR20060014376(A) 申请公布日期 2006.02.15
申请号 KR20057019707 申请日期 2005.10.15
申请人 LEONHARD KURZ GMBH & CO. KG 发明人 KATSCHOREK HAYMO;SEITZ MATHIAS
分类号 G02B5/30;B42D15/10;G03H1/02;G03H1/04;G03H1/18;G07D7/12 主分类号 G02B5/30
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