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The document which possesses security feature, the reader, and the method of grasping security feature
The document which possesses security feature, the reader, and the method of grasping security feature
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机译:具有安全特征的文档,阅读器以及掌握安全特征的方法
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摘要
The invention relates to a document comprising a security element (102) and an optical element (108). The security element is arranged in front of the optical element, and the optical element for checking the security element can be switched between at least first and second optical states. The security element can be optically checked in only one of the first and second states.
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