Polarization technology: special polarized liquid crystal materials are used;
The polarization-changing anti-counterfeiting technology uses a special polarized liquid crystal material to form partially polarized light, which is not easy to counterfeit.
Our plan
Electromagnetic wave
A light wave whose light wave vector is evenly distributed and whose amplitudes are the same in all directions is called natural light. The direction of vibration of the light wave vector is constant, or the light wave having a certain regular change is called polarized light, and the deflected surface is called a polarized surface. The human eye is unable to distinguish between natural light and polarized light, and polarized light with different polarizing surfaces.
Polarization technology material synthesis
The polarization-changing anti-counterfeiting technology is formed by combining an OVD (optical variable) crystal image and a cholesteric material. Polarized light anti-counterfeiting technology is mainly used in (1) brand protection for industrial products and brand-name products; (2) anti-counterfeiting of securities, cards and passports.
Polarized technology features
It can be easily discerned and authentic, and it is highly identifiable; after it is confirmed by an optical film, its color becomes black, and this optical film can be used as a simple tool for identification; using nano-scale ultra-fine patterns, it can be easily verified by a microscope. The manufacturing process is complicated, the equipment is complicated, and the fraud is prevented.
