Abstract
Holographic 3-D printer (holoprinter) is developed for the purpose to reproduce 3-D image hardcopy from digital 3-D image data generated or processed by computers. In the system, holographic stereograms (HS's), in which both horizontal and vertical parallax (full-parallax) information can be recorded, are automatically printed. The 3-D image display is realized by reproducing light-rays from 3-D objects, using full-parallax HS. Through the experiments of recording monochromatic and color 3-D images, good-quality 3-D images are obtained. In addition, the experiment to reproduce the angular dependence of light-rays reflected from the object for high-reality image display is presented, and the difference between the light-ray reproduction and wavefront reconstruction is discussed as well.