A master hologram and method and apparatus for producing a master hologram for a contact printing method

摘要

The invention relates to a method for producing a master hologram (45) for a contact copying method, such a master hologram (45) and a method for producing individualized holograms (345) and individualized holograms (345) with such a master hologram (45) in the contact-copy method are made. The method for producing a master hologram (45) comprises the steps of arranging a diffuse scatterer (10), a diaphragm (20), a Fourier lens (30) and a holographic recording material (40) on an optical arrangement axis (3) in that an optical axis (31) of the Fourier lens (30), a surface normal (41) of the holographic recording material (40) and a surface normal (26) of an aperture plane (25) of the diaphragm (20) are collinear with the optical arrangement axis (3) wherein the aperture (20) between the diffuse scatterer (10) and the Fourier lens (30) is disposed immediately adjacent to the diffuse scatterer (10) and the diffuse scatterer (10) in a focal plane (32) of the Fourier lens (30) is arranged and coherent first light (110) is irradiated on the diffuse scatterer (10) to thereby produce the diffused light (115) which is confined by means of the diaphragm (10) and by means of the Fourier lens (30) into the holographic recording material (40) as object light (119) and to the first coherent light (110) coherent second coherent light (120) from a side facing away from the Fourier lens (30) into the holographic recording material (40) is irradiated as a reference light (129) to form a reflection volume hologram (45) in the holographic recording material (40).