Optical chameleon pigmentComposed of optical color-changing film fragments with specific spectral characteristics. The optical color-changing film is an optical film designed with specific reflection spectral characteristics based on the principle of light interference of multi-layer films. It has substances with various refractive indices. Using vacuum coating technology, according to the requirements of a specific film system structure design, the thickness and sequence of each film layer are accurately controlled and deposited successively on the same carrier.

Has the following characteristics:

1. The angular chromism has simple and easily identifiable characteristics and meets the requirements of public identification.

2. The angular chromism and metallic texture cannot be replicated by devices such as high-precision scanners and color copiers.

3.Optical variable pigmentNon-toxic, odorless, pollution-free, stable structure, strong weather resistance, safe and reliable to use.