Encrypted holographic image refers to the invisible or some speckle encryption obtained by encrypting the anti-counterfeit image by optical image encoding and encryption technology such as laser reading, optical micro-shrinking, low-frequency lithography, random interference fringes, moiré fringes, etc. image.
Laser lithography anti-counterfeiting technology
Laser lithography anti-counterfeiting technology, also known as laser coding technology, is also called laser "burning word" technology. Laser coded sealing technology is a better container anti-counterfeiting technology. The laser is expensive and encodes the printing on the production line. It is difficult for a general counterfeiter to invest heavily in the purchase of this device.