Patent ID: 7307767

Claim:
A method for the calculation and storage of a computer-generated multilayer hologram with n holograms, whereby n is a whole number greater than or equal to 2, comprising the steps of: preselecting a field A 0 of a readout beam to be a mathematical function, preselecting a field A R in a reconstruction plane of the computer-generated multilayer hologram, presetting mathematical functions of n−1 holograms h k , whereby k is not equal to i and k and i can assume values between 1 and n, i represents a position of a particular hologram to be calculated, and k represents positions of all other holograms, wherein field A i − in front of the i-th hologram h i in the beam direction is calculated for i>1 from the combination of field A 0 of the readout beam with all the hologram functions h k , with k<i, of holograms h k , arranged in front of the i-th hologram in the beam direction and for i=1 from field A 0 , calculating back a field A i + behind the i-th hologram h j in the beam direction for i<n from the combination of field A R , in the reconstruction plane with all the hologram functions h k , with k>i, of holograms h k arranged behind the i-th hologram h i in the beam direction and for i=n from field A R , calculating a hologram function h i quotient from the fields A i + /A − , and coding and writing the calculated hologram function h i into a storage medium.