Share Email Print
cover

Proceedings Paper

Synthetized holography with resolution 500.000 dpi, holographic dust, computer read holograms, and nanogravure
Author(s): Libor Kotacka
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Our paper deals with the survey of currently exploited electron-beam technologies to produce several protective optical elements. The computer-synthesized security elements are recorded with a resolution reaching 500.000 dpi and are specially developed for the security of the most important state valuables and documents. We shall mention some principal features, where the ultra-precise recording of diffractive elements is exploited.

Paper Details

Date Published: 18 November 2008
PDF: 6 pages
Proc. SPIE 7138, Photonics, Devices, and Systems IV, 71381D (18 November 2008); doi: 10.1117/12.818029
Show Author Affiliations
Libor Kotacka, Optaglio s.r.o. (Czech Republic)


Published in SPIE Proceedings Vol. 7138:
Photonics, Devices, and Systems IV
Pavel Tománek; Dagmar Senderáková; Miroslav Hrabovský, Editor(s)

© SPIE. Terms of Use
Back to Top