Fig. 4: Design, fabrication, characterization, and demonstration of the OμSL 3D-printed fused silica glass MLA.
From: One-photon three-dimensional printed fused silica glass with sub-micron features
a Numerical construction and topographical characterization of microlens profiles: (i) numerically designed greyscale distributions, and corresponding grayscale maps and printed microlens profiles (ii) without and (iii) with hemispherical distribution. b (i) Optical microscopic image of a single OμSL 3D-printed microlens, and corresponding (ii) white-light interferometer (dotted area within (i)) image with height variations in (iii) X- and (iv) Y-directions (marked by the grey lines). c Characterization of the 5 × 5 fused silica glass MLA: (i) schematic illustration of the optical imaging setup, (ii) arrays of the forming miniaturized CityU badge and (iii) corresponding zoomed-up image.
