Patent ID: 9395690
Filing Date: 2016-07-19
CPC Classification: G02B,G02F,G03H

Claim Text:
1. A holographic display comprising an illumination device, an enlarging unit and a light modulator, wherein: the illumination device comprises at least one light source and a light collimation unit, the light collimation unit collimating the light of the at least one light source and generating a light wave field of the light that is emitted by the light source with a specifiable angular spectrum of plane waves, where the light collimation unit comprises deflection geometries which are designed such that light incident on the light collimation unit at an angle that increases as the distance of the arrangement to the optical axis becomes larger is directed into a direction parallel to the optical axis, depending on the wavelength RGB; the enlarging unit is disposed downstream of the light collimation unit, seen in the direction of light propagation, the enlarging unit comprising a transmissive volume hologram realising an anamorphic broadening of the light wave field due to a transmissive interaction of the light wave field with the volume hologram; and the light modulator is disposed upstream or downstream of the anamorphic enlarging unit, seen in the direction of light propagation.