Characterization of a micro tunable cat's eye array in an optical identification system and comparison between different types of ID tags

Chih-Chieh Chang Chih-Chieh Chang,Jui-Che Tsai Jui-Che Tsai,Ming-Chun Su Ming-Chun Su,Yu-Cheng Yang Yu-Cheng Yang

doi:10.1109/omn.2014.6924565

Characterization of a micro tunable cat's eye array in an optical identification system and comparison between different types of ID tags

Chih-Chieh Chang Chih-Chieh Chang, Jui-Che Tsai Jui-Che Tsai + Show 2 more

https://doi.org/10.1109/omn.2014.6924565

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Publication Date: Aug 1, 2014

Affiliation: National Taiwan University

#Liquid Crystal Spatial Light Modulator #Cat's Eye + Show 8 more

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Abstract

We have built an optical identification system, and tried different types of dynamic ID tags, including a tunable cat's eye retroreflector array, a liquid crystal (LC) spatial light modulator (SPM) with retroreflective tape, and a LC SPM with normal white paper. Their performance is compared and the tag implemented with the micro tunable cat's eye retroreflector array offers the best system security.

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