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In article number 1903340, Yong-Lai Zhang, Hong-Bo Sun, and co-workers fabricate smart artificial compound eyes with the combined advantages of both insect compound eyes and human eyes based on a pH-responsive bovine serum album protein via a femtosecond laser direct writing method, demonstrating variable fields of view and focal lengths for tunable imaging.
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Ma et al. (2019) studied this question.
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