A cylindrical lens raster array is drawn on a dichromatic gelatine lay
er by hardening with a scanning laser beam. The thicknesses of the gel
atine layer used for the array range from 40 to 80 mu m. The laser bea
m intensity profile is modified by a mask with a specific transparency
function to fabricate the desired lens profile. This method is used t
o produce lens rasters which can be used as 3-dimensional image projec
tion screens and anamorphosers.