Anticounterfeit holographic marks with secret codes

Shou Liu; Xiangsu Zhang; Hongkai Lai

doi:10.1117/12.163649

25 November 1993 Anticounterfeit holographic marks with secret codes

Shou Liu, Xiangsu Zhang, Hongkai Lai

Proceedings Volume 2000, Current Developments in Optical Design and Optical Engineering III; (1993) https://doi.org/10.1117/12.163649
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

Abstract

The paper introduces the methods of making secret codes in the holograms for the purpose of anti-counterfeiting, especially the production of two kinds of visual holographic secret codes. The optical arrangements for recording are presented, and the effective results from using the visual secret codes into holographic trade marks are reported.

Citation Download Citation

Shou Liu, Xiangsu Zhang, and Hongkai Lai "Anticounterfeit holographic marks with secret codes", Proc. SPIE 2000, Current Developments in Optical Design and Optical Engineering III, (25 November 1993); https://doi.org/10.1117/12.163649

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