Abstract
AbstractIn this paper, we present a new fabrication of micro‐lens array (MLA) with pinhole array—pinhole/micro‐lens array (P/MLA) for integral imaging 3‐D display (II), which combine lithography and ink‐jet printing. A black circular groove array (BCGA) is used as pinhole array, and laser 3‐D microscope and a homemade setup have been used for the characterization of P/MLA. The results show that high‐precision P/MLA can be obtained using BCGA as templates. By controlling the driving voltage at different steps, the distance between nozzle and substrate, as well as the number of liquid droplets, P/MLA with smooth morphology, different sizes, good repeatability of geometry parameters, great uniformity of focusing, and good converging performance can be achieved. For demonstration, P/MLA with curvature, focal length, numerical aperture, and F‐number of 815.8 μm, 1.60 mm, 0.1311, and 3.8 are applied for the reconstruction in II, exhibiting good reconstruction performance with high resolution, and BCGA reduces the influence of stray light on II and improves the quality of the reconstructed image.
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