Optically variable element

Optically variable element

  • CN 1,662,389 A
  • Filed: 05/09/2003
  • Published: 08/31/2005
  • Est. Priority Date: 05/14/2002
  • Status: Active Application
First Claim
Patent Images

1. optical change element, it is characterized in that, the some parts surface of described optical change element has the achromatism surface texture, and these surface textures have different scatterings, reflection or diffraction characteristic, and described part surface overlaps the to each other and a membrane structure combination.

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