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Fig. 1. (Color online) Process flow involved in producing the lens array (a) producing the first lens prototype using a 3D printer (b) coating the prototype by vacuum forming (c) forming a negative PDMS mold (d) separating the PDMS mold from the lens prototype (e) pouring thermal epoxy into the PDMS mold (f) separating the epoxy lens from the PDMS mold.
New Phys.: Sae Mulli 2023;73:378~384