The present invention is a portable, configurable, inexpensive large scale projection system. The system is comprised of a plurality of projectors mounted on a structure and a display screen. The structure can be reconfigured to hold more or fewer projectors, and can be disassembled for easy transportation...http://www.google.es/patents/US7300161?utm_source=gb-gplus-sharePatente US7300161 - Portable large scale projection display system
