| 摘要 |
<p>PURPOSE:To provide a color image reader using an unmagnified image forming type optical system which can separate a clear color signal at a high speed without complicating a circuit system for a signal processing system. CONSTITUTION:The color image reader is provided with a bluish white fluorescent tube 7 whose spectroscopie intensity characteristic becomes low in the order of a short wavelength area having a peak value near 500nm, an intermediate wavelength area and a long wavelength area, a lens column 5 forming the image of light reflected on the surface of an original as an erected unmagnified image, an image sensor 4 whose spectroscopic sensitivity characteristic becomes low in the order of the long wavelength area, the intermediate wavelength area and the short wavelength area and a color separation filter 41 separating the color of the light reflected on the surface of the original. Then, when the white original is read, the outputs of the respective cells of the sensor 4 are balanced.</p> |
