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. 2015 Oct 6;12(111):20150591. doi: 10.1098/rsif.2015.0591

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© 2015 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 6. — Angular sensitivity of single cone photoreceptors. Relative transmission of light into the outer segment for plane wave illumination from an angle, calculated relative to on-axis case integrating across the visible spectrum. Data are shown for structures including the outer segment (OS), oil droplet (OD) and ellipsoid (E). A sharp reduction in angular sensitivity is seen on the addition of the ellipsoid.