Kuno Kirschfeld

TL;DR: It is shown that the unfused rhabdomeric structure of the Musca ommatidium increases the effective entrance pupil of the eye by a factor of seven compared to the classical apposition eye.

TL;DR: In the compound eyes of the fruitfly Drosophila, the dioptric system of each ommatidium is able to form virtual images of the receptor terminals (rhabdomere tips) throughout the whole depth of the eye, which favors the view that the eye ofDrosophile belongs to the “neural superposition type”.

TL;DR: The results indicate, that the changes in the position of the granules are induced by the excitation of the respective sense cells themselves, for instance by the degree of their depolarisation.

TL;DR: Evidence is presented that in fly photo-receptors the ultraviolet peak is due to a photostable pigment that absorbs light quanta and transfers the energy to the blue-absorbing visual pigment.

TL;DR: In this paper, a comparative study of the optical properties of compound and lens eyes was conducted, and it was concluded that both types of eyes are optimally adapted for different functions: lens eyes with their high angular resolution seem to more useful for pattern recognition, whereas the compound eyes, with their poor resolution, are specialized for movement perception.