Patent ID: 6497487
Filing Date: 2002-12-24
Classification: H04N

Abstract:
A micro display projection system, comprising:an image producing part for producing images to be projected; an illumination part constructed to illuminate light; a color division part, including semitransparent reflection mirrors, disposed adjacent to the illumination part for deriving red(R), green(G) and blue(B) colors from the illuminated light, and for simultaneously transmitting the derived R, G and B color along separate respective light paths; a color switching part including plural color switches, each of said color switches being positioned on one of the respective light paths, each of said color switches being trisected to have light stopper regions and a light transmission region for transmitting light for illumination in correspondence to a respective trisected region of the image producing part, and each of said color switches being electronically controlled so that light of each respective color from the color division part is sequentially transmitted in different successive regions of the color switching part by sequentially changing positions of the light transmission region of each of said color switches in a certain order; and a light collecting part disposed between the color switching part and the image producing part for converging the light from the color switching part onto the image producing part to illuminate light of different ones of the respective R, G and B colors on different respective ones of the trisected regions of the image producing part.