Microstereolithography using a dynamic mask generator and a non-coherent visible Light source

Laser stereolithography deals with the manufacture of three-dimensional objects that are made by space-resolved laser-induced polymerization. in order to obtain three dimensional micro-objects, we developed a new microstereolithography apparatus based on the use of a dynamic mask generator which allows the manufacture of a complete layer by only one irradiation, the part being manufactured layer by layer. This process is composed of a broad-band visible light source, that leads to the elimination of speckle effects resulting from the conventional use of a laser beam, and of a liquid crystal display as the dynamic mask generator.