Interference light field reconstruction using sparsely distributed light points

摘要

An optical system is described that is adapted to reconstruct an interference light field comprising: a spatial light modulator comprising an array of pixels optically aligned to an optical element comprising an array of light point forming elements formed in a first transparent substrate, each light point forming element including a light receiving area at the light receiving face of the first substrate and an associated light transmitting area at the light transmitting face of the first substrate; the light receiving area of a light point forming element being arranged to receive light from a reference light source and to form a light point that emits light out of the light emitting area; at least one mask element and/or refractive element in each light point forming element causing the locations of the points of light to be arranged a—periodically or randomly in at least one direction in a plane of the substrate; and, the pixels of the spatial light modulator controlling the intensity and, optionally, the phase of the light transmitted 20 by the points of light, the transmitted light forming the interference light field at a predetermined location relative to the optical system.