New coloured optical security elements using Rolic's LPP/LCP technology: Devices for 1st to 3rd level inspection

Proceedings of SPIE - The International Society for Optical Engineering

Volumn 4677, Issue , 2002, Pages 194-202

  Moia, Franco ^a  

^a Rolic Technologies Ltd   (Switzerland)

Author keywords

Cholesteric devices; Liquid crystal; Optical security; Optical variable devices; Polarization

Indexed keywords

CHOLESTERIC LIQUID CRYSTALS; CRYPTOGRAPHY; LIQUID CRYSTAL POLYMERS; MASKS; OPTICAL DEVICES; OPTICAL RESOLVING POWER; POLARIZATION; SECURITY SYSTEMS;

OPTICAL VARIABLE DEVICES (OVD);

PHOTOPOLYMERIZATION;

EID: 0036030159     PISSN: 0277786X     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1117/12.462710     Document Type: Conference Paper

References (8)

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8. M. Schadt, H. Seiberle and F. Moia, "Novel Photo-Aligned Color Filters and Optical Interference Elements for LCD-Projection", IDW '99, Sendai, Japan, 1999.