Optical apparatus having multiple arrays of one-dimensional optical elements

摘要

An optical apparatus made for either imaging or light-blurring application is disclosed. The optical apparatus has two arrays of one-dimensional optical elements. Each of the two arrays has a number of elongated cylindrical optical elements arrayed consecutively in parallel and spreading along a first extension-profiling direction generally orthogonal to their longitudinal axes. The two arrays are superposed together with their general direction extension profile twisted with respect to each other at a selected angle. The superposition spreads an extended layer of optical system having a number of lens units formed from the superposition. All the lens units are arrayed in a two-dimensional matrix of moire fringe. More than two arrays of one-dimensional optical elements can be used to construct an optical apparatus. Factors in the system including the twist angle of superposition, the lens profile of one-dimensional optical elements used, and spacing between the superposed arrays can be adjusted to construct an optical device of designated focusing or defocusing optical characteristics.