msUS8047658Dec 22, 2009Nov 1, 2011Rossella LimitedMethods and systems for multiple primary color displayUS8226245 *Apr 11, 2007Jul 24, 2012Sony CorporationComposite optical element and projection optical deviceUS8636366 *Mar 28, 2008Jan 28, 2014Nec Display Solutions, Ltd.Lighting apparatus including a light source, a first mirror, and a second mirror disposed between the light source and the first