Patent ID: 6830342
Filing Date: 2004-12-14
Classification: G03B,H04N

Abstract:
An optical system comprising:a road lens for reflecting light inputted from an outside, changing a path of the light and outputting the light; a color drum having a plurality of cell filters along a circumference thereof to face the path of the light so that the light outputted from the road lens is transmitted selectively; and a converging lens for converging the light transmitted through the color drum, wherein the road lens includes, an input surface having an opening for transmitting the light inputted from the outside and a reflection region, side portions for reflecting the light inputted through the input surface, and an output surface for outputting the inputted light and the reflected light from one of the side portions, wherein the road lens comprises a reflecting surface slanted by a predetermined angle from the output surface to turn the path of the light inputted through the input surface, and wherein the road lens is positioned so that the light outputted from the road lens is transmitted from inside the color drum to outside the color drum.