1. A method for screening color separations of a lenticular image having a lenticular frequency of lenticular lenses required for viewing the lenticular image and having a lens width l, the method comprising the following steps: calculating an amplitude-modulated halftone image for each color separation at least at one screen angle having a tangent being a rational number and with at least one screen frequency; providing a screen with non-orthogonal screen cells spanned by vectors u and v for at least one specific color separation of the color separations; defining a distance k; defining directions of the vectors u and v relating to a perpendicular direction with respect to image strips of the lenticular image for the specific color separation; defining a first pair of rational numbers (n, m); defining a second pair of rational numbers (i, j); and satisfying a system of equations: 
 n*u x +m*v x =0 , n*u y +m*v y =1 , i*u x −j*v x =k and i*u y −j*v y =0 for vectors u=(u x , u y ) and v=(v x , v y ) spanning the screen cells.