The present invention will propose a system for verifying the authenticity of packaging materials, cards, labels, certificates, and other similar documents by applying a so-called "one-dimensional diffraction pattern" by reading out the diffraction pattern and comparing it with a reference pattern. product. At the same time, the so-called "one-dimensional diffraction pattern" packaging material security features.
Before Christmas, the children will make a wish to Santa Claus, hoping that Santa will bring them a good gift. Everyone knows that Santa Claus doesn't climb out of the chimney, and he is with us every day. It is also one of the pleasures of Christmas to give and receive a beautiful Christmas Gift Box on such a day of Christmas. For you love him and her to prepare a gift, and to wrap the exquisite Gift Box, send it to him on such a Christmas day, I believe they will be very happy.
Christmas Gift Box
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