Simple method makes a low-cost, tuneable liquid lens

Simple method makes a low-cost, tuneable liquid lens

Scientists from the Philippines have come up with a clever way to make adjustable water-based liquid lenses, which they say could be used as accessible and low-cost improvised lens systems in classrooms and laboratories. “This was inspired by the natural shape of a water droplet on a flat surface, which resembles a plano-convex lens,” write the researchers in a paper describing their the method in the journal Results in Optics. “We vary the size…