Holography Conference 2017,
Barcelona, 16-17 November 2017

Oral Presentation by Dr. Frank Seils, SECTAGO GmbH
AgiLite™: A Novel OVD Security Feature for Document Protection

SECTAGO’s AgilLiteTM technology is based on an innovative method to create a novel type of diffractive origination. Its creation involves unique mastering equipment, proprietary materials and software. The OVD image derives from a large number of diffractive surface elements which are designed to sophistically interact: Upon illumination the image is synthesized from individually generated light points which are directed towards the viewer’s eye.

The image appears bright-white and is customisable within a high degree of freedom, including the representation of numbers, figures, logos, etc. By tilt or rotation of the device the displayed image shows continuous, coordinated motion at high agility, additionally exhibiting a distinct 3D-effect. Hence, it combines the mobility and optical depth of lens-supported security features with the thin diffractive optic of hologram-type devices.

The gratings are generated by a mask-less lithographic process with pitch values ranging from <300nm to >5,000nm. Parameter settings are highly variable: pitch, depth and vector angle of the gratings are individually chosen and matched to each other to create the unique optical properties of the feature. Despite its complex origination, manufacturing of this OVD feature has been proven to be cost competitive by means of either standard UV-casting or hot- embossing processes.

The basic concept of this new origination technology and a selection of AgilLiteTM examples will be presented. Distinguishing well from other diffractive security features, they are optically attractive, easy to communicate and difficult to counterfeit, altogether making them well suited for the protection of high security documents.

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