Computer-implemented method for calculating a computer-generated reflection hologram to be arranged on a non-planar surface, - wherein an intermediate plane is defined between the non-planar surface and a reconstruction plane, in which the reconstruction is intended to be situated, - wherein the propagation of a light field in the form of an electromagnetic field which is determined by amplitude, wavelength, phase and direction of propagation in a surface between the reconstruction plane and the intermediate plane is calculated by means of a transformation, - wherein the propagation of the light field between the intermediate plane and the non-planar surface is estimated, and - wherein a phase difference field is calculated from the wavelength of the light field and the distribution of the propagation time differences of the light between the intermediate plane and the non-planar surface, a) wherein, on the basis of the information to be reconstructed, the light field in the reconstruction plane is determined, and wherein the light field of a read beam is determined in the non-planar surface, b) wherein the light field in the intermediate plane is calculated from the propagation of the light field between the reconstruction plane and the intermediate plane by means of the transformation, and c) wherein the light field in the non-planar surface is estimated by a superimposition of the light field in the intermediate plane with the phase difference field and the estimated light field is superimposed with the light field of the read beam in order to calculate the phase and/or amplitude information of the hologram. - wherein an intermediate plane is defined between the non-planar surface and a reconstruction plane, in which the reconstruction is intended to be situated, - wherein the propagation of a light field in the form of an electromagnetic field which is determined by amplitude, wavelength, phase and direction of propagation in a surface between the reconstruction plane and the intermediate plane is calculated by means of a transformation, - wherein the propagation of the light field between the intermediate plane and the non-planar surface is estimated, and - wherein a phase difference field is calculated from the wavelength of the light field and the distribution of the propagation time differences of the light between the intermediate plane and the non-planar surface, a) wherein, on the basis of the information to be reconstructed, the light field in the reconstruction plane is determined, and wherein the light field of a read beam is determined in the non-planar surface, b) wherein the light field in the intermediate plane is calculated from the propagation of the light field between the reconstruction plane and the intermediate plane by means of the transformation, and c) wherein the light field in the non-planar surface is estimated by a superimposition of the light field in the intermediate plane with the phase difference field and the estimated light field is superimposed with the light field of the read beam in order to calculate the phase and/or amplitude information of the hologram. a) wherein, on the basis of the information to be reconstructed, the light field in the reconstruction plane is determined, and wherein the light field of a read beam is determined in the non-planar surface, b) wherein the light field in the intermediate plane is calculated from the propagation of the light field between the reconstruction plane and the intermediate plane by means of the transformation, and c) wherein the light field in the non-planar surface is estimated by a superimposition of the light field in the intermediate plane with the phase difference field and the estimated light field is superimposed with the light field of the read beam in order to calculate the phase and/or amplitude information of the hologram.