publication . Preprint . 2013

Evolution and the Calcite Eye Lens

Williams, Vernon L.;
Open Access English
  • Published: 03 Apr 2013
Abstract
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.
Subjects
free text keywords: Physics - General Physics
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