Abstract: Visualization of 3D information or 3D displays are important subjects. We have been researching 3D displays using computer-generated holograms (CGHs). We set our sights on making large and high quality 3D displays. In this paper we present an approach to making large CGHs relatively easily, and at low cost, which are binary Fresnel holograms and are recorded by using a high resolution laser printer (an image setter). By using the image setter it is possible to draw large CGH patterns very easily. Furthermore, we found it was possible to reconstruct CGHs with light-emitting diodes or miniature light bulbs. Making good use of this advantage we propose a method of making larger 3D displays by the multiple comstruction using plural light sources and CGHs. !5
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