Diffractive Images

Diffractive images are often referred to as holograms, but are in fact images created by small areas of fine lines or fringes. When illuminated by light, each small array of lines reflects a rainbow of colors from the surface at a specific angle. An image is made by creating a large number of such arrays at different orientations with multiple overlapping rainbow effects.

OpSec Security is a leading innovator in the development of diffractive imaging technology. Dot matrix technology was the first of such origination methods used for the production of security OVDs. This technology is based on pixels created by optical interference. OpSec has developed proprietary origination systems, such as AEGIS, that offer forensic features for product authentication.

Direct write technology provides an alternative origination technique. It offers far more complex and higher security capabilities. The individual fringes within the pixels are written directly with an ultra high resolution beam of electrons or ions. This approach provides much higher precision and control to allow for the inclusion of very high resolution image detail at a microscopic and macroscopic scale. In addition, the precise control of this method provides the opportunity to create images with enhanced overt and covert security features.