Patent ID: 7274496

Claim:
A 4-line CCD sensor comprising: a monochromic reading line sensor section composed of a monochromic photodiode array which receives incident light from a light source which has a white spectral characteristic, to carry out photoelectric conversion according to the quantity of the incident light, a monochromic shift gate which transfers charges from the monochromic photodiode array, a monochromic analog shift register which receives the charges from the monochromic shift gate to transfer an electric signal, and a monochromic amplifier which has an amplification factor set according to the spectral characteristic of the light source and amplifies the electric signal from the monochromic analog shift register with this amplification factor to output the amplified electric signal to an exterior; and a color reading line sensor section composed of color photodiode arrays each of which receives incident light from the light source to carry out photoelectric conversion according to the quantity of the incident light, color shift gates each of which transfers charges from the color photodiode array, color analog shift registers each of which receives the charges from the color shift gate to transfer an electric signal, and color amplifiers each of which has an amplification factor set according to the spectral characteristic of the light source and amplifies an electric signal from the color analog shift register with this amplification factor to output the amplified electric signal to the exterior.