STEREOLITHOGRAPHY APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a stereolithography apparatus for performing three-dimensional shaping for a short time by irradiating a photosensitive material with light. SOLUTION: The stereolithography apparatus 1 is equipped with a stage 2 for holding a photosensitive member 9 being a substrate coated with the photosensitive material, a head part 3 for emitting spatially modulated light toward the photosensitive member 9 and a computer 5. The head part 3 has a DMD 32 wherein a plurality of micromirrors 2 are arranged two-dimensionally and the light from a light source 31 is reflected only by the micromirror set to a predetermined posture of the micromirror group of the DMD 32 to be guided to the photosensitive member 9. In the stereolithography apparatus 1, the postures of the respective micromirrors of the DMD 32 are controlled by the computer 5. By this constitution, the quantity of the light thrown on the light irradiation region on the photosensitive member 9 corresponding to each of the micromirrors is controlled and the exposure corresponding to the three-dimensional shape of a desired shaped article is performed for a short time. The photosensitive member 9 after exposure is developed by another device. COPYRIGHT: (C)2004,JPO&NCIPI