Authentication using near-field optical imaging

Details Authentication using near-field optical imaging Authentication using near-field optical imaging

2006-07-25

2006-07-25

Fridie, Jr., Willmon (Department: 3722)

Printed matter

Sales document

C283S070000, C283S072000, C283S901000

Reexamination Certificate

active

07080857

ABSTRACT:
A discrete micro particle having a micro image, a method of making discrete micro particles and use in authentication of products. The micro images are printed on a photo sensitive layer on a media and the media is ground into small discrete particles on which the micro images can be viewed for verification of the authenticity of a product on which the micro particles have been placed.

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“Imaging with Solid Immersion Lenses, Spatial Resolution, and Applications”, Qiang Wu, Luke P. Ghislain, V. B. Elings, Proceedings of the IEEE, vol. 88, No. 9, Sep. 2000, pp. 1491-1498.

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