26 May 2016 Analysis and implementation of the foveated vision of the raptor eye
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Abstract
A foveated optical system has non-uniform resolution across its field of view. Typically, the resolution of such a lens is peaked in the center region of field of view, such as in the human eye. In biological systems this is often a result of localized depressions on the retina called foveae. Birds of prey, or raptors, have two foveae in each eye, each of which accounts for a localized region of high magnification within the raptor's field of view. This paper presents an analysis of the bifoveated vision of raptors and presents a method whereby this unique optical characteristic may be achieved in an optical system using freeform optics and aberration correction techniques.
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Aaron D. Long, Aaron D. Long, Ram M. Narayanan, Ram M. Narayanan, Timothy J. Kane, Timothy J. Kane, Terence F. Rice, Terence F. Rice, Michael J. Tauber, Michael J. Tauber, } "Analysis and implementation of the foveated vision of the raptor eye", Proc. SPIE 9854, Image Sensing Technologies: Materials, Devices, Systems, and Applications III, 98540T (26 May 2016); doi: 10.1117/12.2224127; https://doi.org/10.1117/12.2224127
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