Micro-Text is a tiny image hide somewhere inside the hologram, people can not see it by naked eyes. Only with a  magnifier or microscope, people can detect it.It is one kind of security device for  normal inspection and authentication.Micro-text can be a logo , a word, a signature or a code, If it is a signature or code , the security level will increase because it will be another type of authentication.

Nano-Text is a micro-structure image which is smaller compare with Micro-text, it can been seen only under high level microscope(at least 500x). We have two types of nano-text, a combination of this two types of nano-text will made the counterfeiting impossible.