HRI Coating Page

High Refractive Index

Metallizing

Used on security holograms for authentication and protection against counterfeiting and tampering.

Applications include:

The advantages of using High Refractive Index are:

	A single quarter wavelength layer acts as a beam splitter
	To enhance reflectance and transparency over a wide range of wavelengths
	Incidental light is diffracted to produce bright 2D / 3D holographic images
	Can be integrated into the holographic structure to protect against counterfeiting
	Easy to apply on clear or embossed flexible webs
	Low production costs