Image reading apparatus and image processing apparatus for readi

Details Image reading apparatus and image processing apparatus for readi Image reading apparatus and image processing apparatus for readi

1993-12-28

1998-03-03

Reinhart, Mark J.

Facsimile and static presentation processing

Facsimile

Recording apparatus

347241, H04N 121, B41J 247, G01D 1514, G02B 2600

Patent

active

057241520

ABSTRACT:
To properly cut light except for visible light and improve read precision, there is provided an image reading apparatus having a plurality of photoelectric conversion elements. The image reading apparatus includes an image information detecting unit in which the photoelectric conversion elements are arranged on a single chip, a first light-shielding unit, arranged near the photoelectric conversion elements, for transmitting specific visible light, and a second light-shielding unit, arranged near the photoelectric conversion elements at a position different from that of the first light-shielding unit, for partially shielding light except for the visible light.

REFERENCES:
patent: 4663656 (1987-05-01), Elabd et al.
patent: 4748480 (1988-05-01), Jacobs et al.
patent: 4791469 (1988-12-01), Ohmi et al.
patent: 5083161 (1992-01-01), Borton et al.
patent: 5140411 (1992-08-01), Haneda et al.
patent: 5161233 (1992-11-01), Matsuo et al.

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