Means for generating a reflection hologram high resolution

The invention relates to an apparatus 1 for preparing a reflection hologram RH with a master 3, which is formed by a substrate 4 on which a sawtooth-shaped structure 5 is formed by molding, mechanical or lithographic processes. The structure 5 is made specular, reflective, or mirror, and is then filled with a transparent or wavelength-selective layer 6 so that over the structure 5, a desired surface. The light from a laser light source 7 is expanded to an optical device, such as a lens 8 and there is a beam 9 of a predetermined beam width R. The radiation beam 9 illuminates the Master 3 and is attached to the structure 5 at an angle a to the incident bundle of rays 9 is reflected. Above the smooth surface over the structure 5, a photopolymer film 10 is arranged, which on the structure 5 includes, at a distance d a photosensitive layer 11, in which the reflection hologram RH is generated. If this structure is illuminated with the beam 9 of the laser light source 7 so as to interfere the incident beam 9 by the reflected beam and the photosensitive layer 11, a reflection hologram is created, which has the function of the structure 5 of the master. 3 In this case, a sawtooth-shaped structure 5 ie a so-called holographic mirror ... arises in the copy