The design of autostereoscopic display devices is mainly based on the formation of different viewing zones respective to expected positions and interpupillary distances of observers. We developed a generic model approach for the description of light ray distributions through common kinds of optical image splitters. The calculation of viewing zones is based on our subpixel area model. As a novel feature, lenticular image splitters with different designs e.g. spherical or elliptical orientation were implemented. The optical simulation of these lenticular arrays was tested for a real single and multiview system. Based on our results the optimization of common autostereoscopic display designs by the fast simulation would be recommended