| 摘要 |
PURPOSE:To remove the need for the three-color decomposing optical system and to simplify the adjustment of the optical system by providing in parallel the image pickup elements in 3 lines to a CCD and furnishing different R/G/B- color filters to each of the 3 lines. CONSTITUTION:The rays of light are irradiated by a fluorescent tube 16. The reflected light from an object 1 is transported by a lens 2 as P1 P2 P3. The signal read by a pickup element R at the point P1 is inputted through preamplifier 8a, auto-while-balancing circuit 9a, and a signal processing circuit 10a, to a delay circuit 21a. The signal waits for the next signal until next point P1 reaches the point P2 where it is read by a pickup G and further arrives through a preamplifier 8b and a signal processing circuit 10b. When the signals R and G are coincident with each other, they are mixed by a mixing circuit 12a, and outputted to an encoder 13. The signals G and B are likewise mixed by a mixing circuit 12b, and outputted to the encoder 13.
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