US Patent 7481541 Method and systems for projecting images

A projection system for projecting images is described. The projection system has an illumination system for generating an illumination beam comprising sequential color portions. The illumination beam is guided to a light modulating means based on light valves, which allows modulating an impinging illumination beam such that it comprises image information about an image to be displayed. The images are refreshed after an image frame time tframe. The illumination of the light modulating means for generating an image is substantially performed during a first time interval of the image frame time tframe. The latter results in an improved displaying of fast moving images.