Large-format, full-color moiré imaging device by high resolution inkjet printing

Hao Zhong; Gangyao Zhan; Su Shen

doi:10.1117/12.2617754

15 February 2022 Large-format, full-color moiré imaging device by high resolution inkjet printing

Hao Zhong, Gangyao Zhan, Su Shen

Proceedings Volume 12166, Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021); 121666F (2022) https://doi.org/10.1117/12.2617754
Event: Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021), 2021, Hong Kong, Hong Kong

Abstract

Moiré imaging, achieved by superimposing a layer of microlens array (MLA) and micropattern array (MPA), has already be proven useful in a range of applications from art to engineering. Due to the sensitivity to small variations in the MPA , moiré imaging device require high resolution machine to produce. Here we report a colorful, inkjet-printable, resolution up to 4800 dpi moiré imaging device. By utilizing the RGB inkjet printing technology, full-color moiré image can be produced with strikingly visual effect. Moiré imaging device with large-format (<300mm) can be realized to achieve the visually striking motion and 3D effect as varying the viewing angle. The moiré image is coded as a micropattern packed repeatedly, and the imaging heights is determined by the repeated period of micropattern. Therefore, we achieve moiré image with complex imaging heights by varying the period of the micropattern. Injection molding process for manufacturing MLA, is a technology that has proven to be stable and reliable in actual production. The proposed moiré imaging device, with obvious 3D perception to the naked eye, is inexpensive, mass-producible and convenient for authentication. We demonstrate the quality of the device by theoretical calculation and manufacturing. Such device can find potential applications in the field of anti-counterfeiting, information encryption and decoration, etc.

Citation Download Citation

Hao Zhong, Gangyao Zhan, and Su Shen "Large-format, full-color moiré imaging device by high resolution inkjet printing", Proc. SPIE 12166, Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021), 121666F (15 February 2022); https://doi.org/10.1117/12.2617754

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KEYWORDS

Imaging devices

Printing

Inkjet technology

3D image processing

Image resolution

Information security

Microlens array

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