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Machine-detectable security marking invisible to the human eye, preparation of the security marking and security system using this security marking
Machine-detectable security marking invisible to the human eye, preparation of the security marking and security system using this security marking
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机译:人眼看不到的机器可识别的安全标记,使用该安全标记准备安全标记和安全系统
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摘要
The safety marking contains liquid crystal material in a transparent phase, so that it can not be visually recognized, whereby the characteristics of the liquid crystal material are detected with the help of corresponding detection arrangements.
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