Device and method for reading color images

Image analysis – Image sensing

Patent

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Details

2502081, G06K 700

Patent

active

060553413

ABSTRACT:
A device for reading color images comprises an optical input unit, an optical resolution unit and a photoelectric conversion unit. The optical input unit has a constant valid reading width for inputting three colors of RGB at the same time. A first optical path radiates a RGB light inputted from the optical input unit. A second optical path radiates a RGB light inputted from the optical input unit in a path different from the first optical path. A third optical path radiates a RGB light inputted from the optical input unit in a path different from the first and the second optical path. The optical resolution unit receives three RGB lights that are incidented into the optical input unit through the first, the second and the third optical path to resolve one of the three RGB lights into a R light, resolve one of the remaining two RGB lights into a G light and resolve the other one into a B light. The photoelectric conversion unit has a R reading pixel, a G reading pixel and a B reading pixel corresponding to the R light, the G light and the B light obtained in the optical resolution unit, and converts the R light, the G light and the B light into a R signal, a G signal and a B signal.

REFERENCES:
patent: 4783696 (1988-11-01), Neumann et al.
patent: 5329384 (1994-07-01), Setani
patent: 5481381 (1996-01-01), Fujimoto

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