A Fresnel Annular Sector Actuator for micromixing of fluids, utilizes a self-focusing acoustic wave transducer which focuses acoustic waves through constructive wave interference. The fringe-producing optical element produces a fringe pattern in a second light beam derived from the output beam. In some embodiments, the first outer layer is a semi-crystalline fluoropolymer. A user selection of at least one of the two or more data pages may be detected and then communicated from the user device across a network for further processing. , focal plane position data measured by an inboard sensor, such as a transmitted image sensor.