Manske U, Schmidt U
Z Tierpsychol. 1976 Oct;42(2):215-21. doi: 10.1111/j.1439-0310.1976.tb00967.x.
The visual system of microchiropteran bats is usually considered of minor function, but reliable experimental studies are rare. In this paper the visual acuity of three (1 female, 2 male male) vampire bats (Desmodus rotundus) has been investigated in a two-choice training apparatus (striped patterns vs. gray patterns) for light intensities from 0.04 1x to 310 1x. There was a logarithmic dependence between light intensity and visual acuity. The lowest visual angle at 0.04 1x was 2 degrees 31', at 310 1x the minimum resolvable stripe width was 48'.
小型食虫蝙蝠的视觉系统通常被认为功能次要，但可靠的实验研究很少。在本文中，使用双选训练装置（条纹图案与灰色图案），对三只（1只雌性，2只雄性）吸血蝙蝠（圆叶吸血蝠）在0.04勒克斯至310勒克斯的光照强度下的视力进行了研究。光照强度与视力之间存在对数关系。在0.04勒克斯时最低视角为2度31分，在310勒克斯时最小可分辨条纹宽度为48分。
