Both overt and covert security elements may be present in the provided holograms.
To make it simple for the end user to recognize authentic products, overt features are readily obvious. The obvious elements are intricate, appealing, and challenging to imitate. Guilloche patterns are among the more obvious aspects. effects like embossing, gradients, and kinetics, etc.
The covert aspects of a security system are those that cannot be seen without special equipment. Some of the covert characteristics include nano text, laser readable images, raster effects, etc. As the manufacturer is the only one who is aware of the features, this helps the staff members doing on-site product authenticity checks