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Proceedings Paper

New diffractive effects for security holograms produced with Geolas Originators
Author(s): Stanislovas Zacharovas; Ramūnas Bakanas; Andrejs Bulanovs
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Paper Abstract

New embossed hologram originating technique, producing effects which are not possible to reproduce with commonly used image-matrix Kinemax type equipment was developed. Thus, Geola Digital Ltd. is launching a series of unique equipment devoted to embossed holograms originating. Equipment allows one to produce master-holograms containing simultaneously achromatic and true colour deep 3D images. Such images are perfectly viewable while illuminated with light sources situated in front of the hologram or at its back. The Originators also can produce and with higher precision all effects achievable with commonly used image-matrix originators. Therefore, an ultimate goal to have one Originator assuring all security features from Level 1 to Level 4 is achieved. Moreover, pulsed laser employed in Geola's originators enable one to produce whole holograms windows quickly, employing an optical holograms recombination instead of mechanical one.

Paper Details

Date Published: 19 February 2018
PDF: 10 pages
Proc. SPIE 10558, Practical Holography XXXII: Displays, Materials, and Applications, 105580E (19 February 2018); doi: 10.1117/12.2312719
Show Author Affiliations
Stanislovas Zacharovas, Geola Digital UAB (Lithuania)
Ramūnas Bakanas, Geola Digital UAB (Lithuania)
Andrejs Bulanovs, Daugavpils Univ. (Latvia)

Published in SPIE Proceedings Vol. 10558:
Practical Holography XXXII: Displays, Materials, and Applications
Hans I. Bjelkhagen; V. Michael Bove Jr., Editor(s)

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