FIELD: process engineering.
SUBSTANCE: invention relates to production of indicators (display facilities). Indicator comprises one or more embossed structures (RS1). Every said embossed structure (RS1) comprises flat and smooth first reflecting surface (21) and multiple ledges or recesses. Every top surface of ledges or every bottom of recesses represents the flat and smooth second reflecting surface parallel with said first reflecting surface. Every embossed surface (RS1) displays mixed colour as a structural colour.
EFFECT: higher protection against counterfeit.
19 cl, 49 dwg
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