When the tear film functions properly, a thin liquid film coats the eye surface during a blink by the upper eyelid, creating a smooth optical surface for vision and allowing us to see clearly. (sciencedaily.com)
«This is a promising instance of how novel optical surfaces for energy - related applications can be developed relatively simply, cheaply, and sustainably,» said Yang. (sciencedaily.com)
Nelson and his coworkers introduced several revolutionary technologies to accomplish these goals, including polishing optical surfaces under stress and aligning segments to an overall common shape with edge sensors and harnesses. (kavliprize.org)