Optical elements are made using micro-jet printing methods to precisely
control the type, position and amount of polymer deposited onto a
substrate. In preferred embodiments, the proportions of two or more
different polymer compositions are varied over the course of the
deposition process to deposit adjoining polymer pixels in the form of a
film on the substrate surface. The optical properties of each adjoining
polymer pixel can be selected to provide a predetermined optical
property, including a specific value of index of refraction. Preferably,
the film has a radially non-monotonic refractive index profile and/or an
angularly non-monotonic refractive index profile.