Abstract: The invention relates to a method for calculating a light field which propagates between a non planar surface of a computer-generated hologram and a planar reconstruction surface, in which an intermediate plane arranged in front of the hologram is defined, in which the propagation of the light field between the reconstruction plane and the intermediate plane is calculated by means of a transformation, and in which the propagation of the light field between the non-planar hologram surface and the intermediate plane is estimated. This method solves the technical problem of taking account of the geometrical distance differences that arise on account of unevennesses of the storage medium ill the calculation of the hologram function and the reconstruction or read-out and at the same time of specifying a fast algorithm. The invention also relates to a method for producing a hologram, storage medium and a device for reading out a hologram.