Researchers have developed an inexpensive high quality lenses by hanging and curing droplets of a gel-like material, which will cost less than a penny a piece.
The researchers have made lenses about a few millimeters thick with a magnification power of 160 times and a resolution of about 4 microns (millionths of a meter) and they have also built a lens attachment that turns a smartphone camera into a dermascope, a tool to diagnose skin diseases like melanoma and they can also be used in a 3D print attachment.
