Copyproof Achromatic Holograms For Embossing Application

Guenther Dausmann

doi:10.1117/12.950224

31 March 1989 Copyproof Achromatic Holograms For Embossing Application

Guenther Dausmann

Proceedings Volume 1026, Holography Techniques and Applications; (1989) https://doi.org/10.1117/12.950224
Event: 1988 International Congress on Optical Science and Engineering, 1988, Hamburg, Germany

Abstract

More and more the media of holography is being used in security measures, against counterfeiting. This presentation will especially deal with the mass production of suitable embossed holograms. In the field of credit cards rainbow holograms are used predominentely as a security measure against counterfeiting. Although these holograms possess a relativ high degree of security it is still possible to copy them.

Citation Download Citation

Guenther Dausmann "Copyproof Achromatic Holograms For Embossing Application", Proc. SPIE 1026, Holography Techniques and Applications, (31 March 1989); https://doi.org/10.1117/12.950224

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