An apparatus for examining the ocular fundus of an eye, in which an illuminating device is provided with non-overlapping apertures positioned substantially side by side, and in which an image of the apertures is formed on a part of the ocular fundus; an image of the illuminated ocular fundus is formed...http://www.google.com/patents/US4715703?utm_source=gb-gplus-sharePatent US4715703 - Ocular-fundus analyzer
