Patent ID: 7108377
Filing Date: 2006-09-19
Classification: G03B

Abstract:
1. A video light producing device comprising a color separating and mixing element, having a color separating and mixing sector having a plurality of different optical surfaces arranged in a transparent cube, for receiving predetermined polarized light from a light source on a first face of the cube, giving lights to reflection type light modulating elements respectively arranged opposite to second, third, and fourth faces of the cube as well as receiving their reflected modulated lights thereon, and mixing the incident reflected modulated lights and emitting light obtained by the mixing from a fifth face of the cube, wherein the light from the light source is changed into two light fluxes by two rod integrators, and the two light fluxes cross each other on one of the plurality of different optical surfaces of the color separating and mixing sector, to be introduced into a first irradiation area and a second irradiation area of one of the reflection type light modulating elements.