%0 Journal Article
%T Evolution and the Calcite Eye Lens
%A Vernon L. Williams
%J Physics
%D 2013
%I arXiv
%X Calcite is a uniaxial, birefringent crystal, which in its optically transparent form, has been used for animal eye lenses, the trilobite being one such animal. Because of the calcite birefringence there is a difficulty in using calcite as a lens. When the propagation direction of incoming light is not exactly on the c-axis, the mages blur. In this paper, calcite blurring is evaluated, and the non-blurring by a crystallin eye lens is compared to a calcite one.
%U http://arxiv.org/abs/1304.4815v1