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Microlenslets as well as microlens arrays have shown tremendous attractions and successes in miniature optical systems in recent decades. However, the fabrication methods for microlenslets and microlenslet arrays are limited. In this Letter, a rapid and low-cost method for fabricating polymeric biconvex lenslets is presented. This newly developed process is simply based on wetting behavior at interface and is able to produce high-quality biconvex lenslets with controllable size and shape. This technology will greatly simplify the production process and reduce the manufacturing costs for micro-optics.
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Sun et al. (2014) studied this question.
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