Security mark
OwnerMazhar Ali Bariinventor
Life of this patent
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Abstract
A security mark (130) that comprises a metamaterial such that properties of the metamaterial provides authentication of the security mark (130). The metamaterial may have a negative refractive index. An article may be secured by applying the metamaterial to the article such that properties of the metamaterial authenticate the article. The metamaterial may be arranged to form an image (160) when illuminated by terahertz radiation.
Claims21
1-60. (canceled)
A security mark comprising a metamaterial such that properties of the metamaterial provides authentication of the security mark.
A method of securing an article comprising applying a metamaterial to the article such that properties of the metamaterial authenticate the article.
Use of a metamaterial as a security mark for authenticating an article.
Dependencies are inferred from the claim text.