Stereolithography Employing a Real-Image Producing Technique by Holography.

Abstract

A method of stereolithography is proposed and basic experimental results are presented . The method employs real-image producing technique by holography and a photo-curable resin. The real images reconstructed by reverse illumination of Fresnel holograms or holographic stereograms were immersed into a photo curable resin stepwise in the vertical direction in order to solidify a three-dimensional object. When the Fresnel hologram was employed, the resin was actually cured to produce an object similar to the original one. On the other hand, although the real image can be recognized visually, the photo solidification modeling of an object, which was computer-generated , was not feasible in the case of the holographic stereogram because of low light power intensities .