International Optical Technologies Association
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https://iot-association.org/The International Optical Technologies Association includes the world's leading holography, microlens arrays, micromirrors, plasmonics, nanogratings, colour change, caustics, polarisation, photonic crystals, special print-generated effects. These technologies are used in banknote security, anti-counterfeiting, graphics and other commercial applications. Member companies actively cooperate to maintain the highest professional, security and quality standards.
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