A new process of microstereolithography to manufacture freeform solid three-dimensional micro-components with outer dimensions in the millimetre size range is
presented. The process, based on the use of a liquid crystal display as a dynamic mask
generator, works with conventional industrial UV-sensitive stereolithographic materials.
The main innovation of the process consists in using the optical frequency up-conversion
of images from the visible to the UV range in order to overcome the opacity of LCD's in
the UV domain. 400 × 400 points up-converted images have been obtained to generate
solid three-dimensional objects.