An image projection system has a wire grid polarizing beam splitter which functions as both the polarizer and the analyzer in the system. A light source produces a source light beam directed at the beam splitter which reflects one polarization and transmits the other. A liquid crystal array is disposed...http://www.google.ca/patents/US7306338?utm_source=gb-gplus-sharePatent US7306338 - Image projection system with a polarizing beam splitter
