Patterned deposition of refractive layers for high security...

Details Patterned deposition of refractive layers for high security... Patterned deposition of refractive layers for high security...

2005-04-19

2005-04-19

Boutsikaris, Leonidas (Department: 2872)

Optical: systems and elements

Holographic system or element

Authentication

C430S010000, C283S072000, C283S086000

Reexamination Certificate

active

06882452

ABSTRACT:
This invention relates to the production of holographic devices. The holographic devices include a transparent high refractive coating that is applied selectively to provide additional security and moisture resistance.

REFERENCES:
patent: 4856857 (1989-08-01), Takeuchi et al.
patent: 5200253 (1993-04-01), Yamaguchi et al.
patent: 5513019 (1996-04-01), Cueli
patent: WO 0200446 (2002-01-01), None

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