Method for checking authenticity of a hologram and a reading dev

Details Method for checking authenticity of a hologram and a reading dev Method for checking authenticity of a hologram and a reading dev

1998-05-21

1999-08-24

Kim, Robert H.

Optics: measuring and testing

By particle light scattering

With photocell detection

356354, G01B 902

Patent

active

059431318

ABSTRACT:
A method for determining the authenticity of a hologram with the following steps:

REFERENCES:
patent: 5166742 (1992-11-01), Kobayashi et al.
patent: 5508801 (1996-04-01), Panin et al.
patent: 5515183 (1996-05-01), Hashimoto

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