26 May 2016 Analysis and implementation of the foveated vision of the raptor eye
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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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