Microlens Arrays The cover image visualizes the formation of a microlens within a fluid layer, where spatially programmed interactions precisely sculpt the path of light. Simultaneously, it illustrates how the self-formed lenses guide and focus the transmitted light onto the focal plane, producing a converged optical image of pixels. More information can be found in the Research Article by Kahyun Hur, Hyesung Cho, and co-workers (10.1002/adfm.202528056).
Kim et al. (Wed,) studied this question.