HOLOGRAPHIC 3D DISPLAY APPARATUS AND ILLUMINATION UNIT FOR HOLOGRAPHIC 3D DISPLAY APPARATUS

摘要

Disclosed are an illumination unit having an optical system with improved aberration and a holographic three-dimensional image display device. The illumination unit includes: a coherent light source; an optical device for projection which focuses light emitted from the coherent light source; and a holographic optical device which is arranged between the coherent light source and the optical device for projection and has a coherent pattern formed to diffract the light emitted from the coherent light source to provide the diffracted light to the optical device for projection. The coherent pattern of the holographic optical device may include reverse aberration information which can offset aberration of the optical device for projection.