A digital light projection system is provided that includes a light pipe for generating and outputting a light beam. An input mirror is provided that is configured to receive a light beam from the light pipe and deflect it onto a digital mirror device (DMD). The DMD is configured to deflect the light...http://www.google.fr/patents/US6609798?utm_source=gb-gplus-shareBrevet US6609798 - Digital light projection system