Security of hologram and its benefits
What is hologram?
Hologram is an optically variable device changing the characteristics of incident light and diffraction (folding) of ray of lights so that it creates a picture. Such picture can have various dynamic or three-dimensional (3D) attributes, which with many other hidden features serve for security purposes.
Using the microscope, we can see that the hologram has a system of lines, which is not created by any ink layers, but with very soft scratches into the surface of hologram. The density of scratches is more than 1000 lines per one linear millimetre. Due to such density, the microstructure becomes optically active and can create a holographic image.
Because of this internal structure, no printing or copying equipment, which have much lower resolution, can create or copy such hologram.
Hologram – anti-counterfeit device
Counterfeit-proof
The hologram cannot be imitated or copied by any common polygraphic methods. The production of embossed holograms requires very sophisticated and expensive technology.
Transfer-proof
If you use holographic foil (self-destructive label or hotstamping foil),
the hologram cannot be removed and used again, since it is partly destroyed.
Unique identification
Graphic motif of the hologram and its effects (colours, 3D, kinetic, flip-flop) are immediately recognizable by an eye even by laymen. By implementation of more security components into the hologram we can reach a very high level of protection, where the authenticity of the hologram can be verified by using special tools – as microscope.
The production of holograms operates in safety regime.
For lay checking:
- 2D/3D HOLOGRAM - flat graphic motif placed in a different plane with regards to the hologram plane
- 3D HOLOGRAM - three dimensional object giving full space perception
- KINETICT EFFECTS - graphic motifs change their shape by horizontal tilting the hologram
- COLOUR KINETIC EFFECTS - graphic motif changes its shape and colours by vertical tilting the hologram
- ALL-DIRECTION VISIBILITY - transformation of a graphic motif is visible from any angle of view
- FLIP-FLOP EFFECTS - two or more images place in the same hologram area, each image visible from a different angle of view.
- HOLOGRAPHIC MICRO-TEXTS - shining micro text rows with a high graphic resolution readable with a magnifying glass
For inspection checking:
It is a complex of components created for the special control using the portable inspection tools (handy laser readers, portable microscopes, etc.).
For special laboratory checking
(Only with the use of electron beam technology):
The security devices, which can be identified in well equipped laboratories only (electron microscopes).
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Optaglio Group
