Polymer Lens Almost Identical to Human Eye Lens

Ashley Rice, Biophotonics:

The work, conducted by scientists at Case Western Reserve University, Rose-Hulman Institute of Technology, the US Naval Research Laboratory and PolymerPlus, provides a new material approach for fabricating synthetic polymer lenses. Using a multilayer-film coextrusion technique – a common method used for producing multilayer structures – the team stacked thousands of nanoscale layers, each with a slightly different refractive index. These layers were laminated and shaped into GRIN optics.

GRIN stands for gradient refractive index and the human eye is a GRIN lens.