Investigations on anti-counterfeiting label based on microlens array

Jiaying Yu; Qilu Huang; Zhongliang Huang; Zeqiang Chen; Yanhua Zhang; Xianzeng Zhang; Tingdi Liao

doi:10.1117/12.2651671

23 January 2023 Investigations on anti-counterfeiting label based on microlens array

Jiaying Yu, Qilu Huang, Zhongliang Huang, Zeqiang Chen, Yanhua Zhang, Xianzeng Zhang, Tingdi Liao

Proceedings Volume 12557, AOPC 2022: Optical Sensing, Imaging, and Display Technology; 125571H (2023) https://doi.org/10.1117/12.2651671
Event: Applied Optics and Photonics China 2022 (AOPC2022), 2022, Beijing, China

Abstract

Microlens arrays are composed of sub-lenses with dimension of a few tens micrometers. They have the advantages of compact configuration, high integration, unique imaging characteristics, and easy replication in batches. They are gradually emerging in naked-eye display technology. This paper discusses the principle and technique of an anti-counterfeiting label based on a microlens array. Mohr Nanotech 650FG ultra-precision five-axis CNC machine is used to process the microlens arrayed copper master mold and the nickel mold is fabricated by electroplating process. Then the 400-line micro-lens array PC film is produced by the hot embossing process. Finally, by integrating the PC film with the anti-counterfeiting micropattern the function of the anti-counterfeiting label based on microlens array was experimentally verified.

Citation Download Citation

Jiaying Yu, Qilu Huang, Zhongliang Huang, Zeqiang Chen, Yanhua Zhang, Xianzeng Zhang, and Tingdi Liao "Investigations on anti-counterfeiting label based on microlens array", Proc. SPIE 12557, AOPC 2022: Optical Sensing, Imaging, and Display Technology, 125571H (23 January 2023); https://doi.org/10.1117/12.2651671

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