Large radial graded-index polymer.

Applied optics

PubMedID: 21068973

Wu SP, Nihei E, Koike Y. Large radial graded-index polymer. Appl Opt. 1996;35(1):28-32.
A very large radial graded-index (GRIN) polymer was successfully prepared for the first time, to the best of our knowledge, by two methods: the curved mold method and the diffusion copolymerization method. Both methods gave a radial GRIN polymer with a diameter of 70 mm and a ?n value greater than 0.02. Ray tracing through these radial GRIN polymers was used to predict that such a GRIN polymer could be a promising candidate for thinner ophthalmic lenses with no spherical aberration or multifocusing characteristics.