Patent ID: 6905211
Filing Date: 2005-06-14
Classification: G03B,H04N

Abstract:
1. A color separation device comprising: a first color separation member having a first polarization direction changing element, a second polarization direction changing element, each of said polarization direction changing element changing polarization directions of different predetermined wavebands of incident light in different modes, and a first polarization separation element that reflects or transmits the incident light according to the polarization directions of the incident light; and a second color separation member having a second polarization separation element, wherein, linearly polarized light being made first incident on said first color separation member at an angle of approximately 45 degrees so as to separate the linearly polarized light into reflected light and transmitted light, both reflected light and transmitted light having different colors and one of the different colors corresponding to one of three colors, and one of the reflected light and the transmitted light being made incident on said second color separation member so as to separate said one of the reflected light and the transmitted light into further reflected light and further transmitted light, both further reflected light and further transmitted light corresponding to the other two of the three colors, respectively.