A kind of optical anti-counterfeit element and the optical anti-counterfeiting product using the optical anti-counterfeit element

A kind of optical anti-counterfeit element and the optical anti-counterfeiting product using the optical anti-counterfeit element

  • CN 104,647,936 B
  • Filed: 11/22/2013
  • Issued: 05/04/2018
  • Est. Priority Date: 11/22/2013
  • Status: Active Grant
First Claim
Patent Images

1. a kind of optical anti-counterfeit element, which includes:

  • Base material;

    The first surface embossment structure layer and second surface embossment structure layer being formed on the same surface of the base material, wherein instituteThe ratio of the surface area and apparent area of stating first surface embossment structure layer is less than the surface of the second surface embossment structure layerProduct and the ratio of apparent area;

    AndThe first interference-type multilayer coating for being formed on the first surface embossment structure layer and/or it is formed at the second surfaceThe second interference-type multilayer coating on embossment structure layer;

    First surface embossment structure layer and/or second surface the embossment structure layer is non-diffractive surface relief structure or diffractometerFace embossment structure.

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