Micro-optics for article identification

Details Micro-optics for article identification Micro-optics for article identification

2006-02-28

2006-02-28

Epps, Georgia (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

By surface composed of lenticular elements

C380S054000

Reexamination Certificate

active

07006294

ABSTRACT:
The present invention provides methods and compositions for authentication of articles and counterfeit deterrence using non-holographic micro-optics and microstructures having a surface relief greater than a few microns. Embodiments of the present invention disclose a range of distinctive optical effects obtained from micro-optic systems incorporating micro lenses, non-imaging collectors, prisms, wave guides, mirrors, gratings, structural interference filters, and photonic crystal microstructures.

REFERENCES:
patent: 4498736 (1985-02-01), Griffin
patent: 4645301 (1987-02-01), Orensteen et al.
patent: 5303370 (1994-04-01), Brosh et al.
patent: 2002/0172360 (2002-11-01), Matos
patent: 2003/0058491 (2003-03-01), Holmes et al.
patent: 2003/0067389 (2003-04-01), Look

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