The utility model relates to a photoelectric device for scanning a colored original document in a graphic reproduction technology; wherein, the photoelectric device adopts a plurality of photo electric diodes as the photo electric converters of a light source. The luminous flux arrival of the light source has a plurality of filtering sheet wheels of a filter sheet, and the light is divided into a plurality of colors. The output terminal of the cross section of a photoconductive fiber takes the shape of a wire form light ban that nicely adapts to the necessary scanning lines as well as has a white point light source. The luminous flux projects onto the filter sheet wheel through a condensing lens. The shape of the converter output terminal of the cross section of the photoconductive fiber is matched with that of the cross section of a light bundle that projects onto cross section of the photoconductive fiber. The emitting luminous flux from a wire shaped fiber terminal is provided with at least one cylindrical lens that is larger than the wire-shaped fiber terminal. The cylindrical lens changes the emitting luminous flux to be the wire shaped light ban and lightens the scanning line of the original documents. |